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882019 grt100 toshiba
httpslidepdfcomreaderfullgrt100-toshiba 124
882019 grt100 toshiba
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Transformer Protection Relay GRT100
(Relay case Type-A)
We reserve the right to introduce improvements in the course of technical development
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GRT100
Fully numerical transformer protectionCurrent differential protection for two- or three winding
transformers
High-set differential over current protectionNo interposing CTs requiredCT ratio and vector group compensationRestricted earth fault protectionTime-over current protectionThermal overload protectionOverexcitation protectionFrequency protectionConfigurable binary outputsAutomatic monitoringMetering and recording functionsMenu-driven human interfacesTwo serial ports for a local PC and a remote PCIRIG-B port for external clock
GRT100 is a numerical transformer protection relay whichcan be applied for two- or three-winding power transformersautotransformers and generator-transformer units
GRT100 provides the six protection schemes
The current differential protection is applied for fast andselective main protection This protection requires nointerposing CTs and provides stability against magnetizinginrush and over excitation
The restricted earth fault protection detects internal earthfaults where the transformer star point is directly or lowimpedance earthed and can be applied on high- andlow-voltage side respectively
The time-over current protection is mainly used as backupprotection and can be applied on high- and low-voltageside respectively
The thermal overload protection protects the insulationagainst thermal stress and provides two independently setlevels for alarm and tripping
The over excitation protection provides alarm and tripping The frequency protection operates on over frequency and
under frequency and provides load shedding
GRT100 provides the following metering and recording
functions Metering Fault recording Event recording Disturbance recording
GRT100 provides the following human interfaces for relaysetting or viewing of stored data Relay front panel LCD LED display and operation keys Local PC Remote PC
The relay can be accessed from a local PC or a remote PCthrough communication ports A local PC can be connected
to the relay via the RS232C port on the front fascia of therelay and a remote PC can be connected to the relay throughthe RS485 port at the rear of the relay
FEATURES
APPLICATION
1
GRT100 has two models which differ according to thenumber of three-phase current inputs for differentialprotection
Model 100 --- For 2-winding transformers requiring2 three-phase current inputs
Model 200--- For 3-winding transformers and all
power transformers requiring 3three-phase current inputs
Transformer configuration and applicable model
Current Differential Protection
GRT100 provides fast selective protection for two- andthree winding transformers It has three phase-segregateddifferential elements each with a dual-slope percentagedifferential characteristic as shown in Figure 1
RELAY FUNCTIONS
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Slope 1 provides sensitivity to low-level faults For higher-level faults slope 2 with increased biascompensates for the effects of CT saturation
GRT100 includes internal vector group compensation andCT ratio correction so that the relay requires no interposingCTs
During periods of transformer energization the use of a
second harmonic restraint method blocks the relayoperation
When the transformer is overexcited due to a transientpower system disturbance the use of a fifth harmonicrestraint method blocks the relay operation
High-set Differential Over currentProtection
GRT100 also includes high-set unrestrained over currentelement applied in the differential circuit and ensures rapidclearance of heavy internal faults
Restricted Earth Fault ProtectionEmploying residual current of each winding and neutralpoint current Restricted Earth Fault (REF) protectionprovides a highly sensitive differential protection for earthfaults in a transformer that has a star point is directlyearthed or low impedance earthed
The REF element has a dual slope percentagecharacteristic as shown in Figure 2 and the independentelements can be a lied for each transformer windin
Time-over current Protection
The over current protection can be applied to two or threewindings for phase to phase faults and neutral points of thetransformer for phase to earth faults on the high- andlow-voltage side to provide backup protection The inversetime over current elements conform to either of three IECStandard characteristics (Standard inverse Very inverseand Extremely inverse) or a Long-time inverse
characteristics The characteristics of each element areshown in Figure 3
The high-set over current element provides aninstantaneous or definite time over current protection
Fig 2 hardware block diagram
2
Fig 1 Percentage differential element Fig 2 Characteristic of REF
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GRT100
Frequency Protection
GRT100 has two frequency elements which provide thefollowing schemes Under frequency protectionOver frequency protection
Over excitation Protection
A single phase-to-phase connected voltage input isprovided to detect over excitation Alarms and trippingbased on a measurement of the voltagefrequency ratio areprovided The voltagefrequency ratio is calculated usingper unit quantities The alarm is definite time delayed whilstthe characteristic may be selected as either having adefinite time or an inverse time delay as shown in Figure 5
3
Thermal image
I2-lp2 I2-(klB)2
(l2-lp2)(1-TA τ) l2-(klB)2
wheret Operating time
τ Thermal time constant
k ConstantI Relay currentIB Basic currentIp Specified load current before the overload occursTA Time for alarm
Fig 3 Characteristics of inverse time delayed over current element
Fig 4 Characteristic of thermal overload element
Alarm t= τIn
Trip t=τIn
Thermal Overload Protection (alarmingandor tripping)
The characteristics are exponential functions according toIEC 60255-8 standards and take into account the 12Rlosses due to the particular operational current and thesimultaneous cooling due to the coolant In this way thetripping time during an overload condition takes thepre-overload into consideration An alarm can be set to
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Figure 7 shows the hardware block diagram of the relay
The relay has a multiple microprocessor design Themicroprocessors perform software functions such as signalprocessing protection algorithm scheme logic output relaycontrol and handling of the human interfaceAnalog inputs include phase current inputs residual currentinputs and phase voltage inputs The number of analog inputsdepends on the model of the relayThe internal auxiliary transformers are used to isolate stepdown and condition the inputs from the VT and CTs Their output signals are then converted into digital data for further processing The front panel contains a 4 x 40 character liquidcrystal display (LCD) and 19 pushbutton keys to provide localaccess to the relay menu There are also 8 light emittingdiodes (LED) for visual indication of the status of the relay
The relay provides three communication ports RS232C for connection of a local PC RS485 for a remote PC and IRIG-Bfor an external clock
The terminal blocks are located at the rear of the relayproviding connections for all inputoutput circuitsThe relay is housed in a type-A case suitable for either rackor panel mounting as shown in Figures 14 and 15
Metering and Monitoring
The following power system data is measured continuouslyand displayed on the LCD on the relay fascia at the local PCand the remote PC when connected
Currents (phase phase to phase symmetrical components)Differential currentsVoltage (phase to phase)Frequency
HARDWARE
METERING AND RECORDING
AC Inputs and Protection Elements
Figure 6 shows the typical relationship between the AC inputsand protection elements
Trip andor Indication of ExternalProtection Devices
External signals such as overpressure devices and Buchholzrelay operation can be applied through 4 binary input circuitsLogic can be arranged for alarms event recording andtripping The binary input circuit is provided with a logic levelinversion functionFor redundancy it is recommended to route tripping from the
Buchholz or overpressure device in parallel to the relay
Fig 5 Characteristic of over excitation
Fig 6 AC inputs and protection elements
Fig 7 hardware block diagram
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GRT100Currents voltages and differential currents can be indicatedas primary or secondary valuesThe user can monitor the following output and status on theLCD and at localremote PCsRelay element output
Binary inputoutput
Event Record
The most recent 96 time-tagged events are stored with 1
ms resolution Events recorded are as follows-Tripping-Alarms-Change of binary input signal-Change of relay setting-Relay failure
Fault Record
A relay trip initiates fault recording Time-tagged fault data
can be stored for the 8 most recent faults Fault recorditems are as followsDate and timeOperating phaseTripping modePre-fault and post-fault current data (phase phase tophase symmetrical components)
Disturbance Record
The relay can record 22 analog and 30 binary signals Thedisturbance recorder is initiated by operation of the over current element andor relay tripping In respect to analogdata phase currents neutral current and phase-to-phasevoltage are recorded
Pre-fault recording time is fixed at 300ms and post-faultrecording time can be set from 100ms to 3s The maximumnumber of stored records depends on the post-faultrecording time In the case of a post-fault recording time of 500ms up to 20 disturbance records can be stored Therecord number of the recorded data is displayed on theLCD
Calendar and Time
The calendar and time are provided for time tagging of recorded data Synchronization with GPS (GlobalPositioning System) is achieved via the IRIG-B port
Relay Front Panel
The relay front panel incorporates the following humaninterfacesSetting the relay and viewing stored data are possible usingthe
5
Liquid Crystal Display (LCD) and operation keys40 characters 4 line LCD with backlight8 Light Emitting Diodes (LED) including 4 that areconfigurableOperation keys
RS232C portMonitoring jacks
Figure 8 shows the relay front panel
The following items can be displayed on the LCD
- Setting- Metering- Event records- Fault records- The number of disturbance records- Any failure message detected by the automatic supervision Password protection can be provided from the setting menuon the LCD to provide security for relay setting changesAfter the password has been set the password must beentered to access the setting menu from a local or remotePC as well as on the LCD
The contents of metering fault records and relay failures
can be monitored by pressing the VIEW key The VIEW keycan be pressed without removing the relay front cover
Arbitrary signals can be assigned to the four user configurable LEDs
Two monitoring jacks are operable when the test mode isselected in the LCD window An oscilloscope can beconnected to the relay through these jacks Selection of output signals on the monitoring jacks can be set from theLCD menu
HUMAN INTERFACE
Fig 8 Relay front panel
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Local PC
The user can communicate with the GRT100 from a localPC via the RS232C port on the relay fascia The followingdata can be viewed or analyzed on the local PC with
RSM100 software- Setting- Metering- Event records- Fault records- Disturbance records
Remote Setting and Monitoring (RSM)
GRT100 can be connected to the RSIVI system via theRS485 interface at the rear of the relay The user canoperate the relay from a remote PC in the same way asfrom a local PC
A maximum of 32 relays can be connected to the remotePC in multi-drop mode via the protocol converter (option) The RSM100 software is also used to communicate with therelay and to view or analyze disturbance records on theremote PC
The data transmission rate between relays and the protocolconverter is 64kbps
The relay is compliant with the transmission protocoldefined by IEC 60870-5103
Figure 9 shows the configuration of the RSM system
Relay Setting
The user can input or change settings using the operationkeys on the relay fascia or via a local or remote PC with theRSIVI system Password protection is provided to changesettings
6
Eight active setting groups are provided This allows theuser to set one group for normal operating conditions whileother groups may be set to cover alternative operating
conditions
Configurable Binary Output Contacts
GRT100 is provided with 13 or 23 user configurablenormally open output contacts used for indication andalarm The number of outputs varies according to the relaymodel
Binary Inputs
GRT100 is provided with 8 binary inputs for trip andor indication of external protection devices etc The binaryinput circuits are provided with a logic level inversion
function
Fig 9 Remote setting and monitoring system
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GRT100
7
PC DISPLAY
Fault record
Event record
Vector diagram
Metering
Waveform data analysis
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Automatic Monitoring Function
The automatic monitoring function will detect failuresshould they occur that might cause unwanted operationThe items monitored include the following- Analog input circuits- Analog-to-Digital converter - Watchdog timer - DC power supply circuits- CPU
Alarms
In the unlikely event that a relay failure should occur this isdetected by automatic monitoring and the LED ALARM onthe relay fascia is illuminated A binary RELAY FAILUREoutput is simultaneously operated and the datetime of any
such failure would be stored in the event record
AUTOMATIC MONITORING
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GRT100
9
RatingsAC current (In) 1A or 5AAC voltage 100V 110V 115V 120VFrequency 50Hz or 60HzDC power supply 110Vdc125Vdc (Operative range 88 to 150Vdc)
220Vdc25OVdc (Operative range 176 to300Vdc)48Vdc54Vdc60Vdc (Operative range 384to 72Vdc)
AC ripple on DC supply IEC 60255-11 maximum 12DC supply interruption IEC 60255-11
Permissive duration of DC supply voltage interruption tomaintain normal operation less than 50ms at 110VdcRestart time less than 10s
Binary input circuit DC voltage110Vdc125Vdc (Operative range 88 to 150Vdc)220Vdc25OVdc (Operative range 176 to300Vdc)48Vdc54Vdc60Vdc (Operative range 384to 72Vdc)
Overload rating AC current input 4 times rated continuous
100 times rated for 1 sAC voltage input 2 times rated continuous
25 times rated for is
Burden AC current circuit 03VA per phase (at rated 5A)
04VA at zero sequence circuit (at rated 5A)01 VA per phase (at rated 1 A)03VA at zero sequence circuit (at rated 1A)
AC voltage circuit 01VA (at rated voltage)DC power supply less than 14W (quiescent)
less than 25W (operation)Binary input circuit 05Winput at 110Vdc
Current differential protection Minimum operate current (ik) 010 to 050pu in 001pu stepsSlope 1 (p1) 10 to 100 in 1 stepsSlope 2 (p2) 50 to 200 in 1 stepskp 100 to 1OOOpu in 001pu stepsVector group compensation (Winding 1 to 3) (dl -d3)
0 to 11 (0 to 330deg in 30deg steps)CT ratio correction (Winding 1 to 3) (kct1-kct3)
0 05 to 200 in 001 stepsInrush setting (2nd harmonic ratio) (k2f) 10 to 50 in 1 stepsOverexcitation setting (5th harmonic ratio) (k5f)
10 to 100 in 1 steps
High-set differential over current protection Over current (kh) 200 to 20OOpu in 001pu steps
Restricted earth fault protectionMinimum operate current 005 to 1OOpu in 001pu stepsSlope 1 (p1) 10Slope 2 (p2) 50 to 100 in 1 stepskp 050 to 2OOpu in 001pu stepsCT ratio correction (kct) 100 to 5000 in 001 steps
Operating time of current differential element
Current differential element typical 30msHigh-set differential over current element typical 20ms
Accuracy of current differential element Current differential protection plusmn5
Reset value less than 105
Time-over current protection High-set over current element Pick up level (OC) 01 to 20Opu in 01pu stepsDelay time (TOC) 000 to 1 000s in 001s stepsOperating time typical 30msInverse time over current elementPick up level (OCI) 010 to 5OOpu in 001pu stepsTime multiplier (TOCI) 005 to 100 in 001 stepsCharacteristic Three IEC standard 60255-3 (Standard
inverse Very inverse Extremely inverse)or a Long-time inverseRefer to Figure 3
Accuracy of inverse time characteristicsStandard Very and Long-time inverse EC 60255-3 class 5Extremely inverse IEC 60255-3 class 75
Accuracy of time over current protection
Pickup value plusmn5
Thermal overload protection Thermal time constant (τ) 05 to 500Os in 01s stepsConstant (k) 010 to 400 in 001 stepsBasic current (IB) 050 to 250pu in 001pu stepsSpecial load current before overload (Ip) 000 to 1OOpu in 001
stepsTime for alarming (TA) 0 to 10 min in 1 min steps
Accuracy of thermal overload protection
Operating time plusmn10
Frequency protectionOver frequency 5000 to 55OOHz in 001 Hz steps (50Hz relay)
6000 to 66OOHz in 001 Hz steps (60Hz relay) Under frequency 4500 to 50OOHz in 001 Hz steps (50Hz relay)
5400 to 60OOHz in 001 Hz steps (60Hz relay)Start time less than 100msUnder voltage blocking 40 to 100V in 1V steps
Accuracy of frequency protection
Pickup valueplusmn
003Hz
Overexcitation protection Pickup voltage 1000 to 120OV in O1 V stepsAlarm level (A) 103 to 130pu in 001pu stepsHigh level (H) 110 to 140pu in 001pu stepsLow level (L) 105 to 130pu in 001pu stepsLT (Definite time) 1 to 600s in 1s stepsHT (Definite time) 1 to 600s in is stepsTVFH (Definite time) 1 to 600s in 1s stepsTVFA (Definite time) 1 to 600s in 1s stepsStart time less than 130ms
TECHNICAL DATATECHNICAL DATATECHNICAL DATATECHNICAL DATA
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Accuracy plusmn2 of pickup voltage
Frequency range plusmn2
Disturbance record initiationOver current element 01 to 20OOpu in 001pu steps
Earth fault 005 to 20OOpu in 001pu stepsPre-fault time 03s (fixed)Post-fault time 01 to 3s
Communication port Front communication port (local PC)Connection Point to pointCable type Multi-core (straight)Cable length 15m (max)Connector RS232C 9-way D-type femaleRear communication port (remote PC)Signal level RS485Transmission data rate for RSM system 64kbpsConnection Multidrop mode (max 32 relays)Connector Screw terminalsCable and length Twisted-pair cable max
1200mIsolation 2kVac for 1 min
Transmission data rate for protocol IEC 60870-5-103 96 192kbpsInterface to optional fibre can be provided for IEC60870-5-103Connector type ST type
IRIG-B portConnection BNC connector Cable type 50 ohm coaxial cable
Atmospheric environment Temperature (IEC60255-6)
Operation guarantee -10 to +55
Storage -20 to +70
Humidity (IEC60068-2-3) 4 days at 93 and 40
Binary inputsMinimum operating voltage 70Vdc at 110Vdc125Vdc rating
Contact ratingsTrip contactsMake and carry 5A continuously
30A 290Vdc for 05s (LR=10ms)Break 015A 290Vdc (LR=40ms)
Auxiliary contactsMake and carry 4A continuously
20A 290Vdc for 05s (LR≧5ms)Break 01 A 290Vdc (LR=40ms)
DurabilityLoaded contact 10000 operations minimumUnloaded contact 100000 operations minimum
Mechanical designWeight 12kgCase color Munsell No10YR805Isolation IP51 Installation Flush mounting or rack mounting
Vibration testThe relay withstands vibration in the frequency range of 10 to150Hz with a sweep rate of 1 octave per minute in accordance withIEC Standard 60255-21-1 Class 1
Shock and bump test The relay withstands the shocks and bumps specified in IECStandard 60255-21-2 Class 1
Seismic test
The relay withstands the seismic specified in IEC Standard60255-21-3 Class 1
Dielectric test
The relay withstands 2kV at 50 or 60Hz for 1 minute between allcircuits and the case and between all separate circuits inaccordance with IEC Standard 60255-5 The relay withstands 1 kVat 50 or 60Hz for 1 minute across the open contacts in accordancewith ANSIIEEE C3790
Impulse voltage test
The relay withstands 5kV peak and 1250ps 05J waveformapplied both transversely and between relay terminals and earth inaccordance with IEC Standard 60255-5
1 MHz burst disturbance test
The relay withstands 1 MHz for 2s with 25kHz 25kV attenuatedto half in 3 to 6 cycles between independent circuits andindependent circuits and case earth and 1OkV across terminals of the same circuit in accordance with IEC Standard 60255-22-1Class 3
Radiated electromagnetic field
disturbance test
The relay withstands 25 to 1OOOMHz 10Vm radiated field inaccordance with IEC Standard 60255-22-3 Class 3
Electrostatic discharge test
The relay withstands the following magnitudes of electrostaticdischarge in accordance with IEC Standard 60255-22-2Contact discharge 6kV Class 3Air discharge 15kV Class 4
Fast transient disturbance testThe relay withstands 4kV ア 10 25kHz applied in common mode
for at least 1 minute in accordance with IEC Standard 60255-22-4Class 4
Surge immunity
The relay withstands 4kV peak and 1250ms between all groupsand case earth and 2kV peak and 1250ms between terminals of each group in accordance with IEC Standard 61000-4-5 Level 4
EMC compliance
Conformity to 89336EEC generic standards EN50081-2EN50082-2Product safety conformity to 7323EEC generic safety standardsEN61010-1 EN60950
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Protocol converter(Option)
Type G1PR1 AC power supply
Voltage 100110VFrequency 50 or 60Hz
Burden less than 20W
Transmission data ratePC side (RS232C) 96 192 384kbpsRelay side (RS485) 64kbps
Size 320(W)X1425(H)X430(D)Weight 7kg
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ORDERING
1 Transformer Protection Relay
2 Protocol Converter (Option)
12
G1PR1
0GRT100
Relay TypeTransformer protection relay GRT100Relay Model
-Model 100 2 three-phase current inputs for 2-windingtransformer
13 N0 configurable output contacts23 N0 configurable output contacts
101 102
-Model 200 3 three-phase current inputs for 2-winding and3-winding transformer
13 N0 configurable output contacts23 N0 configurable output contacts
201 202
CT rating
1A5A
1 2
Frequency50Hz60Hz
1 2
DC power supply rating
1OOV125V220V250V48V54V60V
1 23
Type
Protocol converter G1PR1Model
Not available for external time synchronizationAvailable for external time synchronization (IRIG-B)Available for external time synchronization (IRIG-B and GPS)
01 0203
AC power supply rating
AC 100110V 10
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MEMO
19
GRT100
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MEMO
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TOSHIBA CORPORATIONPOWER SYSTEMS amp SERVICES COMPANYUTILITY POWER SYSTEMS ENGINEERING DEPT 1-1
SHIBAURA1-CHOUME MINATO-KU TOKYO
105-800
1 JapanPHONE 03-3457-3631
FACSIMILE 03-54449196
6335-1 rsquo01-1 C15
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Transformer Protection Relay GRT100
(Relay case Type-A)
We reserve the right to introduce improvements in the course of technical development
882019 grt100 toshiba
httpslidepdfcomreaderfullgrt100-toshiba 324
GRT100
Fully numerical transformer protectionCurrent differential protection for two- or three winding
transformers
High-set differential over current protectionNo interposing CTs requiredCT ratio and vector group compensationRestricted earth fault protectionTime-over current protectionThermal overload protectionOverexcitation protectionFrequency protectionConfigurable binary outputsAutomatic monitoringMetering and recording functionsMenu-driven human interfacesTwo serial ports for a local PC and a remote PCIRIG-B port for external clock
GRT100 is a numerical transformer protection relay whichcan be applied for two- or three-winding power transformersautotransformers and generator-transformer units
GRT100 provides the six protection schemes
The current differential protection is applied for fast andselective main protection This protection requires nointerposing CTs and provides stability against magnetizinginrush and over excitation
The restricted earth fault protection detects internal earthfaults where the transformer star point is directly or lowimpedance earthed and can be applied on high- andlow-voltage side respectively
The time-over current protection is mainly used as backupprotection and can be applied on high- and low-voltageside respectively
The thermal overload protection protects the insulationagainst thermal stress and provides two independently setlevels for alarm and tripping
The over excitation protection provides alarm and tripping The frequency protection operates on over frequency and
under frequency and provides load shedding
GRT100 provides the following metering and recording
functions Metering Fault recording Event recording Disturbance recording
GRT100 provides the following human interfaces for relaysetting or viewing of stored data Relay front panel LCD LED display and operation keys Local PC Remote PC
The relay can be accessed from a local PC or a remote PCthrough communication ports A local PC can be connected
to the relay via the RS232C port on the front fascia of therelay and a remote PC can be connected to the relay throughthe RS485 port at the rear of the relay
FEATURES
APPLICATION
1
GRT100 has two models which differ according to thenumber of three-phase current inputs for differentialprotection
Model 100 --- For 2-winding transformers requiring2 three-phase current inputs
Model 200--- For 3-winding transformers and all
power transformers requiring 3three-phase current inputs
Transformer configuration and applicable model
Current Differential Protection
GRT100 provides fast selective protection for two- andthree winding transformers It has three phase-segregateddifferential elements each with a dual-slope percentagedifferential characteristic as shown in Figure 1
RELAY FUNCTIONS
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Slope 1 provides sensitivity to low-level faults For higher-level faults slope 2 with increased biascompensates for the effects of CT saturation
GRT100 includes internal vector group compensation andCT ratio correction so that the relay requires no interposingCTs
During periods of transformer energization the use of a
second harmonic restraint method blocks the relayoperation
When the transformer is overexcited due to a transientpower system disturbance the use of a fifth harmonicrestraint method blocks the relay operation
High-set Differential Over currentProtection
GRT100 also includes high-set unrestrained over currentelement applied in the differential circuit and ensures rapidclearance of heavy internal faults
Restricted Earth Fault ProtectionEmploying residual current of each winding and neutralpoint current Restricted Earth Fault (REF) protectionprovides a highly sensitive differential protection for earthfaults in a transformer that has a star point is directlyearthed or low impedance earthed
The REF element has a dual slope percentagecharacteristic as shown in Figure 2 and the independentelements can be a lied for each transformer windin
Time-over current Protection
The over current protection can be applied to two or threewindings for phase to phase faults and neutral points of thetransformer for phase to earth faults on the high- andlow-voltage side to provide backup protection The inversetime over current elements conform to either of three IECStandard characteristics (Standard inverse Very inverseand Extremely inverse) or a Long-time inverse
characteristics The characteristics of each element areshown in Figure 3
The high-set over current element provides aninstantaneous or definite time over current protection
Fig 2 hardware block diagram
2
Fig 1 Percentage differential element Fig 2 Characteristic of REF
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GRT100
Frequency Protection
GRT100 has two frequency elements which provide thefollowing schemes Under frequency protectionOver frequency protection
Over excitation Protection
A single phase-to-phase connected voltage input isprovided to detect over excitation Alarms and trippingbased on a measurement of the voltagefrequency ratio areprovided The voltagefrequency ratio is calculated usingper unit quantities The alarm is definite time delayed whilstthe characteristic may be selected as either having adefinite time or an inverse time delay as shown in Figure 5
3
Thermal image
I2-lp2 I2-(klB)2
(l2-lp2)(1-TA τ) l2-(klB)2
wheret Operating time
τ Thermal time constant
k ConstantI Relay currentIB Basic currentIp Specified load current before the overload occursTA Time for alarm
Fig 3 Characteristics of inverse time delayed over current element
Fig 4 Characteristic of thermal overload element
Alarm t= τIn
Trip t=τIn
Thermal Overload Protection (alarmingandor tripping)
The characteristics are exponential functions according toIEC 60255-8 standards and take into account the 12Rlosses due to the particular operational current and thesimultaneous cooling due to the coolant In this way thetripping time during an overload condition takes thepre-overload into consideration An alarm can be set to
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4
Figure 7 shows the hardware block diagram of the relay
The relay has a multiple microprocessor design Themicroprocessors perform software functions such as signalprocessing protection algorithm scheme logic output relaycontrol and handling of the human interfaceAnalog inputs include phase current inputs residual currentinputs and phase voltage inputs The number of analog inputsdepends on the model of the relayThe internal auxiliary transformers are used to isolate stepdown and condition the inputs from the VT and CTs Their output signals are then converted into digital data for further processing The front panel contains a 4 x 40 character liquidcrystal display (LCD) and 19 pushbutton keys to provide localaccess to the relay menu There are also 8 light emittingdiodes (LED) for visual indication of the status of the relay
The relay provides three communication ports RS232C for connection of a local PC RS485 for a remote PC and IRIG-Bfor an external clock
The terminal blocks are located at the rear of the relayproviding connections for all inputoutput circuitsThe relay is housed in a type-A case suitable for either rackor panel mounting as shown in Figures 14 and 15
Metering and Monitoring
The following power system data is measured continuouslyand displayed on the LCD on the relay fascia at the local PCand the remote PC when connected
Currents (phase phase to phase symmetrical components)Differential currentsVoltage (phase to phase)Frequency
HARDWARE
METERING AND RECORDING
AC Inputs and Protection Elements
Figure 6 shows the typical relationship between the AC inputsand protection elements
Trip andor Indication of ExternalProtection Devices
External signals such as overpressure devices and Buchholzrelay operation can be applied through 4 binary input circuitsLogic can be arranged for alarms event recording andtripping The binary input circuit is provided with a logic levelinversion functionFor redundancy it is recommended to route tripping from the
Buchholz or overpressure device in parallel to the relay
Fig 5 Characteristic of over excitation
Fig 6 AC inputs and protection elements
Fig 7 hardware block diagram
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GRT100Currents voltages and differential currents can be indicatedas primary or secondary valuesThe user can monitor the following output and status on theLCD and at localremote PCsRelay element output
Binary inputoutput
Event Record
The most recent 96 time-tagged events are stored with 1
ms resolution Events recorded are as follows-Tripping-Alarms-Change of binary input signal-Change of relay setting-Relay failure
Fault Record
A relay trip initiates fault recording Time-tagged fault data
can be stored for the 8 most recent faults Fault recorditems are as followsDate and timeOperating phaseTripping modePre-fault and post-fault current data (phase phase tophase symmetrical components)
Disturbance Record
The relay can record 22 analog and 30 binary signals Thedisturbance recorder is initiated by operation of the over current element andor relay tripping In respect to analogdata phase currents neutral current and phase-to-phasevoltage are recorded
Pre-fault recording time is fixed at 300ms and post-faultrecording time can be set from 100ms to 3s The maximumnumber of stored records depends on the post-faultrecording time In the case of a post-fault recording time of 500ms up to 20 disturbance records can be stored Therecord number of the recorded data is displayed on theLCD
Calendar and Time
The calendar and time are provided for time tagging of recorded data Synchronization with GPS (GlobalPositioning System) is achieved via the IRIG-B port
Relay Front Panel
The relay front panel incorporates the following humaninterfacesSetting the relay and viewing stored data are possible usingthe
5
Liquid Crystal Display (LCD) and operation keys40 characters 4 line LCD with backlight8 Light Emitting Diodes (LED) including 4 that areconfigurableOperation keys
RS232C portMonitoring jacks
Figure 8 shows the relay front panel
The following items can be displayed on the LCD
- Setting- Metering- Event records- Fault records- The number of disturbance records- Any failure message detected by the automatic supervision Password protection can be provided from the setting menuon the LCD to provide security for relay setting changesAfter the password has been set the password must beentered to access the setting menu from a local or remotePC as well as on the LCD
The contents of metering fault records and relay failures
can be monitored by pressing the VIEW key The VIEW keycan be pressed without removing the relay front cover
Arbitrary signals can be assigned to the four user configurable LEDs
Two monitoring jacks are operable when the test mode isselected in the LCD window An oscilloscope can beconnected to the relay through these jacks Selection of output signals on the monitoring jacks can be set from theLCD menu
HUMAN INTERFACE
Fig 8 Relay front panel
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Local PC
The user can communicate with the GRT100 from a localPC via the RS232C port on the relay fascia The followingdata can be viewed or analyzed on the local PC with
RSM100 software- Setting- Metering- Event records- Fault records- Disturbance records
Remote Setting and Monitoring (RSM)
GRT100 can be connected to the RSIVI system via theRS485 interface at the rear of the relay The user canoperate the relay from a remote PC in the same way asfrom a local PC
A maximum of 32 relays can be connected to the remotePC in multi-drop mode via the protocol converter (option) The RSM100 software is also used to communicate with therelay and to view or analyze disturbance records on theremote PC
The data transmission rate between relays and the protocolconverter is 64kbps
The relay is compliant with the transmission protocoldefined by IEC 60870-5103
Figure 9 shows the configuration of the RSM system
Relay Setting
The user can input or change settings using the operationkeys on the relay fascia or via a local or remote PC with theRSIVI system Password protection is provided to changesettings
6
Eight active setting groups are provided This allows theuser to set one group for normal operating conditions whileother groups may be set to cover alternative operating
conditions
Configurable Binary Output Contacts
GRT100 is provided with 13 or 23 user configurablenormally open output contacts used for indication andalarm The number of outputs varies according to the relaymodel
Binary Inputs
GRT100 is provided with 8 binary inputs for trip andor indication of external protection devices etc The binaryinput circuits are provided with a logic level inversion
function
Fig 9 Remote setting and monitoring system
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GRT100
7
PC DISPLAY
Fault record
Event record
Vector diagram
Metering
Waveform data analysis
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Automatic Monitoring Function
The automatic monitoring function will detect failuresshould they occur that might cause unwanted operationThe items monitored include the following- Analog input circuits- Analog-to-Digital converter - Watchdog timer - DC power supply circuits- CPU
Alarms
In the unlikely event that a relay failure should occur this isdetected by automatic monitoring and the LED ALARM onthe relay fascia is illuminated A binary RELAY FAILUREoutput is simultaneously operated and the datetime of any
such failure would be stored in the event record
AUTOMATIC MONITORING
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GRT100
9
RatingsAC current (In) 1A or 5AAC voltage 100V 110V 115V 120VFrequency 50Hz or 60HzDC power supply 110Vdc125Vdc (Operative range 88 to 150Vdc)
220Vdc25OVdc (Operative range 176 to300Vdc)48Vdc54Vdc60Vdc (Operative range 384to 72Vdc)
AC ripple on DC supply IEC 60255-11 maximum 12DC supply interruption IEC 60255-11
Permissive duration of DC supply voltage interruption tomaintain normal operation less than 50ms at 110VdcRestart time less than 10s
Binary input circuit DC voltage110Vdc125Vdc (Operative range 88 to 150Vdc)220Vdc25OVdc (Operative range 176 to300Vdc)48Vdc54Vdc60Vdc (Operative range 384to 72Vdc)
Overload rating AC current input 4 times rated continuous
100 times rated for 1 sAC voltage input 2 times rated continuous
25 times rated for is
Burden AC current circuit 03VA per phase (at rated 5A)
04VA at zero sequence circuit (at rated 5A)01 VA per phase (at rated 1 A)03VA at zero sequence circuit (at rated 1A)
AC voltage circuit 01VA (at rated voltage)DC power supply less than 14W (quiescent)
less than 25W (operation)Binary input circuit 05Winput at 110Vdc
Current differential protection Minimum operate current (ik) 010 to 050pu in 001pu stepsSlope 1 (p1) 10 to 100 in 1 stepsSlope 2 (p2) 50 to 200 in 1 stepskp 100 to 1OOOpu in 001pu stepsVector group compensation (Winding 1 to 3) (dl -d3)
0 to 11 (0 to 330deg in 30deg steps)CT ratio correction (Winding 1 to 3) (kct1-kct3)
0 05 to 200 in 001 stepsInrush setting (2nd harmonic ratio) (k2f) 10 to 50 in 1 stepsOverexcitation setting (5th harmonic ratio) (k5f)
10 to 100 in 1 steps
High-set differential over current protection Over current (kh) 200 to 20OOpu in 001pu steps
Restricted earth fault protectionMinimum operate current 005 to 1OOpu in 001pu stepsSlope 1 (p1) 10Slope 2 (p2) 50 to 100 in 1 stepskp 050 to 2OOpu in 001pu stepsCT ratio correction (kct) 100 to 5000 in 001 steps
Operating time of current differential element
Current differential element typical 30msHigh-set differential over current element typical 20ms
Accuracy of current differential element Current differential protection plusmn5
Reset value less than 105
Time-over current protection High-set over current element Pick up level (OC) 01 to 20Opu in 01pu stepsDelay time (TOC) 000 to 1 000s in 001s stepsOperating time typical 30msInverse time over current elementPick up level (OCI) 010 to 5OOpu in 001pu stepsTime multiplier (TOCI) 005 to 100 in 001 stepsCharacteristic Three IEC standard 60255-3 (Standard
inverse Very inverse Extremely inverse)or a Long-time inverseRefer to Figure 3
Accuracy of inverse time characteristicsStandard Very and Long-time inverse EC 60255-3 class 5Extremely inverse IEC 60255-3 class 75
Accuracy of time over current protection
Pickup value plusmn5
Thermal overload protection Thermal time constant (τ) 05 to 500Os in 01s stepsConstant (k) 010 to 400 in 001 stepsBasic current (IB) 050 to 250pu in 001pu stepsSpecial load current before overload (Ip) 000 to 1OOpu in 001
stepsTime for alarming (TA) 0 to 10 min in 1 min steps
Accuracy of thermal overload protection
Operating time plusmn10
Frequency protectionOver frequency 5000 to 55OOHz in 001 Hz steps (50Hz relay)
6000 to 66OOHz in 001 Hz steps (60Hz relay) Under frequency 4500 to 50OOHz in 001 Hz steps (50Hz relay)
5400 to 60OOHz in 001 Hz steps (60Hz relay)Start time less than 100msUnder voltage blocking 40 to 100V in 1V steps
Accuracy of frequency protection
Pickup valueplusmn
003Hz
Overexcitation protection Pickup voltage 1000 to 120OV in O1 V stepsAlarm level (A) 103 to 130pu in 001pu stepsHigh level (H) 110 to 140pu in 001pu stepsLow level (L) 105 to 130pu in 001pu stepsLT (Definite time) 1 to 600s in 1s stepsHT (Definite time) 1 to 600s in is stepsTVFH (Definite time) 1 to 600s in 1s stepsTVFA (Definite time) 1 to 600s in 1s stepsStart time less than 130ms
TECHNICAL DATATECHNICAL DATATECHNICAL DATATECHNICAL DATA
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Accuracy plusmn2 of pickup voltage
Frequency range plusmn2
Disturbance record initiationOver current element 01 to 20OOpu in 001pu steps
Earth fault 005 to 20OOpu in 001pu stepsPre-fault time 03s (fixed)Post-fault time 01 to 3s
Communication port Front communication port (local PC)Connection Point to pointCable type Multi-core (straight)Cable length 15m (max)Connector RS232C 9-way D-type femaleRear communication port (remote PC)Signal level RS485Transmission data rate for RSM system 64kbpsConnection Multidrop mode (max 32 relays)Connector Screw terminalsCable and length Twisted-pair cable max
1200mIsolation 2kVac for 1 min
Transmission data rate for protocol IEC 60870-5-103 96 192kbpsInterface to optional fibre can be provided for IEC60870-5-103Connector type ST type
IRIG-B portConnection BNC connector Cable type 50 ohm coaxial cable
Atmospheric environment Temperature (IEC60255-6)
Operation guarantee -10 to +55
Storage -20 to +70
Humidity (IEC60068-2-3) 4 days at 93 and 40
Binary inputsMinimum operating voltage 70Vdc at 110Vdc125Vdc rating
Contact ratingsTrip contactsMake and carry 5A continuously
30A 290Vdc for 05s (LR=10ms)Break 015A 290Vdc (LR=40ms)
Auxiliary contactsMake and carry 4A continuously
20A 290Vdc for 05s (LR≧5ms)Break 01 A 290Vdc (LR=40ms)
DurabilityLoaded contact 10000 operations minimumUnloaded contact 100000 operations minimum
Mechanical designWeight 12kgCase color Munsell No10YR805Isolation IP51 Installation Flush mounting or rack mounting
Vibration testThe relay withstands vibration in the frequency range of 10 to150Hz with a sweep rate of 1 octave per minute in accordance withIEC Standard 60255-21-1 Class 1
Shock and bump test The relay withstands the shocks and bumps specified in IECStandard 60255-21-2 Class 1
Seismic test
The relay withstands the seismic specified in IEC Standard60255-21-3 Class 1
Dielectric test
The relay withstands 2kV at 50 or 60Hz for 1 minute between allcircuits and the case and between all separate circuits inaccordance with IEC Standard 60255-5 The relay withstands 1 kVat 50 or 60Hz for 1 minute across the open contacts in accordancewith ANSIIEEE C3790
Impulse voltage test
The relay withstands 5kV peak and 1250ps 05J waveformapplied both transversely and between relay terminals and earth inaccordance with IEC Standard 60255-5
1 MHz burst disturbance test
The relay withstands 1 MHz for 2s with 25kHz 25kV attenuatedto half in 3 to 6 cycles between independent circuits andindependent circuits and case earth and 1OkV across terminals of the same circuit in accordance with IEC Standard 60255-22-1Class 3
Radiated electromagnetic field
disturbance test
The relay withstands 25 to 1OOOMHz 10Vm radiated field inaccordance with IEC Standard 60255-22-3 Class 3
Electrostatic discharge test
The relay withstands the following magnitudes of electrostaticdischarge in accordance with IEC Standard 60255-22-2Contact discharge 6kV Class 3Air discharge 15kV Class 4
Fast transient disturbance testThe relay withstands 4kV ア 10 25kHz applied in common mode
for at least 1 minute in accordance with IEC Standard 60255-22-4Class 4
Surge immunity
The relay withstands 4kV peak and 1250ms between all groupsand case earth and 2kV peak and 1250ms between terminals of each group in accordance with IEC Standard 61000-4-5 Level 4
EMC compliance
Conformity to 89336EEC generic standards EN50081-2EN50082-2Product safety conformity to 7323EEC generic safety standardsEN61010-1 EN60950
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Protocol converter(Option)
Type G1PR1 AC power supply
Voltage 100110VFrequency 50 or 60Hz
Burden less than 20W
Transmission data ratePC side (RS232C) 96 192 384kbpsRelay side (RS485) 64kbps
Size 320(W)X1425(H)X430(D)Weight 7kg
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ORDERING
1 Transformer Protection Relay
2 Protocol Converter (Option)
12
G1PR1
0GRT100
Relay TypeTransformer protection relay GRT100Relay Model
-Model 100 2 three-phase current inputs for 2-windingtransformer
13 N0 configurable output contacts23 N0 configurable output contacts
101 102
-Model 200 3 three-phase current inputs for 2-winding and3-winding transformer
13 N0 configurable output contacts23 N0 configurable output contacts
201 202
CT rating
1A5A
1 2
Frequency50Hz60Hz
1 2
DC power supply rating
1OOV125V220V250V48V54V60V
1 23
Type
Protocol converter G1PR1Model
Not available for external time synchronizationAvailable for external time synchronization (IRIG-B)Available for external time synchronization (IRIG-B and GPS)
01 0203
AC power supply rating
AC 100110V 10
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MEMO
19
GRT100
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MEMO
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TOSHIBA CORPORATIONPOWER SYSTEMS amp SERVICES COMPANYUTILITY POWER SYSTEMS ENGINEERING DEPT 1-1
SHIBAURA1-CHOUME MINATO-KU TOKYO
105-800
1 JapanPHONE 03-3457-3631
FACSIMILE 03-54449196
6335-1 rsquo01-1 C15
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GRT100
Fully numerical transformer protectionCurrent differential protection for two- or three winding
transformers
High-set differential over current protectionNo interposing CTs requiredCT ratio and vector group compensationRestricted earth fault protectionTime-over current protectionThermal overload protectionOverexcitation protectionFrequency protectionConfigurable binary outputsAutomatic monitoringMetering and recording functionsMenu-driven human interfacesTwo serial ports for a local PC and a remote PCIRIG-B port for external clock
GRT100 is a numerical transformer protection relay whichcan be applied for two- or three-winding power transformersautotransformers and generator-transformer units
GRT100 provides the six protection schemes
The current differential protection is applied for fast andselective main protection This protection requires nointerposing CTs and provides stability against magnetizinginrush and over excitation
The restricted earth fault protection detects internal earthfaults where the transformer star point is directly or lowimpedance earthed and can be applied on high- andlow-voltage side respectively
The time-over current protection is mainly used as backupprotection and can be applied on high- and low-voltageside respectively
The thermal overload protection protects the insulationagainst thermal stress and provides two independently setlevels for alarm and tripping
The over excitation protection provides alarm and tripping The frequency protection operates on over frequency and
under frequency and provides load shedding
GRT100 provides the following metering and recording
functions Metering Fault recording Event recording Disturbance recording
GRT100 provides the following human interfaces for relaysetting or viewing of stored data Relay front panel LCD LED display and operation keys Local PC Remote PC
The relay can be accessed from a local PC or a remote PCthrough communication ports A local PC can be connected
to the relay via the RS232C port on the front fascia of therelay and a remote PC can be connected to the relay throughthe RS485 port at the rear of the relay
FEATURES
APPLICATION
1
GRT100 has two models which differ according to thenumber of three-phase current inputs for differentialprotection
Model 100 --- For 2-winding transformers requiring2 three-phase current inputs
Model 200--- For 3-winding transformers and all
power transformers requiring 3three-phase current inputs
Transformer configuration and applicable model
Current Differential Protection
GRT100 provides fast selective protection for two- andthree winding transformers It has three phase-segregateddifferential elements each with a dual-slope percentagedifferential characteristic as shown in Figure 1
RELAY FUNCTIONS
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Slope 1 provides sensitivity to low-level faults For higher-level faults slope 2 with increased biascompensates for the effects of CT saturation
GRT100 includes internal vector group compensation andCT ratio correction so that the relay requires no interposingCTs
During periods of transformer energization the use of a
second harmonic restraint method blocks the relayoperation
When the transformer is overexcited due to a transientpower system disturbance the use of a fifth harmonicrestraint method blocks the relay operation
High-set Differential Over currentProtection
GRT100 also includes high-set unrestrained over currentelement applied in the differential circuit and ensures rapidclearance of heavy internal faults
Restricted Earth Fault ProtectionEmploying residual current of each winding and neutralpoint current Restricted Earth Fault (REF) protectionprovides a highly sensitive differential protection for earthfaults in a transformer that has a star point is directlyearthed or low impedance earthed
The REF element has a dual slope percentagecharacteristic as shown in Figure 2 and the independentelements can be a lied for each transformer windin
Time-over current Protection
The over current protection can be applied to two or threewindings for phase to phase faults and neutral points of thetransformer for phase to earth faults on the high- andlow-voltage side to provide backup protection The inversetime over current elements conform to either of three IECStandard characteristics (Standard inverse Very inverseand Extremely inverse) or a Long-time inverse
characteristics The characteristics of each element areshown in Figure 3
The high-set over current element provides aninstantaneous or definite time over current protection
Fig 2 hardware block diagram
2
Fig 1 Percentage differential element Fig 2 Characteristic of REF
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GRT100
Frequency Protection
GRT100 has two frequency elements which provide thefollowing schemes Under frequency protectionOver frequency protection
Over excitation Protection
A single phase-to-phase connected voltage input isprovided to detect over excitation Alarms and trippingbased on a measurement of the voltagefrequency ratio areprovided The voltagefrequency ratio is calculated usingper unit quantities The alarm is definite time delayed whilstthe characteristic may be selected as either having adefinite time or an inverse time delay as shown in Figure 5
3
Thermal image
I2-lp2 I2-(klB)2
(l2-lp2)(1-TA τ) l2-(klB)2
wheret Operating time
τ Thermal time constant
k ConstantI Relay currentIB Basic currentIp Specified load current before the overload occursTA Time for alarm
Fig 3 Characteristics of inverse time delayed over current element
Fig 4 Characteristic of thermal overload element
Alarm t= τIn
Trip t=τIn
Thermal Overload Protection (alarmingandor tripping)
The characteristics are exponential functions according toIEC 60255-8 standards and take into account the 12Rlosses due to the particular operational current and thesimultaneous cooling due to the coolant In this way thetripping time during an overload condition takes thepre-overload into consideration An alarm can be set to
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Figure 7 shows the hardware block diagram of the relay
The relay has a multiple microprocessor design Themicroprocessors perform software functions such as signalprocessing protection algorithm scheme logic output relaycontrol and handling of the human interfaceAnalog inputs include phase current inputs residual currentinputs and phase voltage inputs The number of analog inputsdepends on the model of the relayThe internal auxiliary transformers are used to isolate stepdown and condition the inputs from the VT and CTs Their output signals are then converted into digital data for further processing The front panel contains a 4 x 40 character liquidcrystal display (LCD) and 19 pushbutton keys to provide localaccess to the relay menu There are also 8 light emittingdiodes (LED) for visual indication of the status of the relay
The relay provides three communication ports RS232C for connection of a local PC RS485 for a remote PC and IRIG-Bfor an external clock
The terminal blocks are located at the rear of the relayproviding connections for all inputoutput circuitsThe relay is housed in a type-A case suitable for either rackor panel mounting as shown in Figures 14 and 15
Metering and Monitoring
The following power system data is measured continuouslyand displayed on the LCD on the relay fascia at the local PCand the remote PC when connected
Currents (phase phase to phase symmetrical components)Differential currentsVoltage (phase to phase)Frequency
HARDWARE
METERING AND RECORDING
AC Inputs and Protection Elements
Figure 6 shows the typical relationship between the AC inputsand protection elements
Trip andor Indication of ExternalProtection Devices
External signals such as overpressure devices and Buchholzrelay operation can be applied through 4 binary input circuitsLogic can be arranged for alarms event recording andtripping The binary input circuit is provided with a logic levelinversion functionFor redundancy it is recommended to route tripping from the
Buchholz or overpressure device in parallel to the relay
Fig 5 Characteristic of over excitation
Fig 6 AC inputs and protection elements
Fig 7 hardware block diagram
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GRT100Currents voltages and differential currents can be indicatedas primary or secondary valuesThe user can monitor the following output and status on theLCD and at localremote PCsRelay element output
Binary inputoutput
Event Record
The most recent 96 time-tagged events are stored with 1
ms resolution Events recorded are as follows-Tripping-Alarms-Change of binary input signal-Change of relay setting-Relay failure
Fault Record
A relay trip initiates fault recording Time-tagged fault data
can be stored for the 8 most recent faults Fault recorditems are as followsDate and timeOperating phaseTripping modePre-fault and post-fault current data (phase phase tophase symmetrical components)
Disturbance Record
The relay can record 22 analog and 30 binary signals Thedisturbance recorder is initiated by operation of the over current element andor relay tripping In respect to analogdata phase currents neutral current and phase-to-phasevoltage are recorded
Pre-fault recording time is fixed at 300ms and post-faultrecording time can be set from 100ms to 3s The maximumnumber of stored records depends on the post-faultrecording time In the case of a post-fault recording time of 500ms up to 20 disturbance records can be stored Therecord number of the recorded data is displayed on theLCD
Calendar and Time
The calendar and time are provided for time tagging of recorded data Synchronization with GPS (GlobalPositioning System) is achieved via the IRIG-B port
Relay Front Panel
The relay front panel incorporates the following humaninterfacesSetting the relay and viewing stored data are possible usingthe
5
Liquid Crystal Display (LCD) and operation keys40 characters 4 line LCD with backlight8 Light Emitting Diodes (LED) including 4 that areconfigurableOperation keys
RS232C portMonitoring jacks
Figure 8 shows the relay front panel
The following items can be displayed on the LCD
- Setting- Metering- Event records- Fault records- The number of disturbance records- Any failure message detected by the automatic supervision Password protection can be provided from the setting menuon the LCD to provide security for relay setting changesAfter the password has been set the password must beentered to access the setting menu from a local or remotePC as well as on the LCD
The contents of metering fault records and relay failures
can be monitored by pressing the VIEW key The VIEW keycan be pressed without removing the relay front cover
Arbitrary signals can be assigned to the four user configurable LEDs
Two monitoring jacks are operable when the test mode isselected in the LCD window An oscilloscope can beconnected to the relay through these jacks Selection of output signals on the monitoring jacks can be set from theLCD menu
HUMAN INTERFACE
Fig 8 Relay front panel
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Local PC
The user can communicate with the GRT100 from a localPC via the RS232C port on the relay fascia The followingdata can be viewed or analyzed on the local PC with
RSM100 software- Setting- Metering- Event records- Fault records- Disturbance records
Remote Setting and Monitoring (RSM)
GRT100 can be connected to the RSIVI system via theRS485 interface at the rear of the relay The user canoperate the relay from a remote PC in the same way asfrom a local PC
A maximum of 32 relays can be connected to the remotePC in multi-drop mode via the protocol converter (option) The RSM100 software is also used to communicate with therelay and to view or analyze disturbance records on theremote PC
The data transmission rate between relays and the protocolconverter is 64kbps
The relay is compliant with the transmission protocoldefined by IEC 60870-5103
Figure 9 shows the configuration of the RSM system
Relay Setting
The user can input or change settings using the operationkeys on the relay fascia or via a local or remote PC with theRSIVI system Password protection is provided to changesettings
6
Eight active setting groups are provided This allows theuser to set one group for normal operating conditions whileother groups may be set to cover alternative operating
conditions
Configurable Binary Output Contacts
GRT100 is provided with 13 or 23 user configurablenormally open output contacts used for indication andalarm The number of outputs varies according to the relaymodel
Binary Inputs
GRT100 is provided with 8 binary inputs for trip andor indication of external protection devices etc The binaryinput circuits are provided with a logic level inversion
function
Fig 9 Remote setting and monitoring system
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GRT100
7
PC DISPLAY
Fault record
Event record
Vector diagram
Metering
Waveform data analysis
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Automatic Monitoring Function
The automatic monitoring function will detect failuresshould they occur that might cause unwanted operationThe items monitored include the following- Analog input circuits- Analog-to-Digital converter - Watchdog timer - DC power supply circuits- CPU
Alarms
In the unlikely event that a relay failure should occur this isdetected by automatic monitoring and the LED ALARM onthe relay fascia is illuminated A binary RELAY FAILUREoutput is simultaneously operated and the datetime of any
such failure would be stored in the event record
AUTOMATIC MONITORING
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GRT100
9
RatingsAC current (In) 1A or 5AAC voltage 100V 110V 115V 120VFrequency 50Hz or 60HzDC power supply 110Vdc125Vdc (Operative range 88 to 150Vdc)
220Vdc25OVdc (Operative range 176 to300Vdc)48Vdc54Vdc60Vdc (Operative range 384to 72Vdc)
AC ripple on DC supply IEC 60255-11 maximum 12DC supply interruption IEC 60255-11
Permissive duration of DC supply voltage interruption tomaintain normal operation less than 50ms at 110VdcRestart time less than 10s
Binary input circuit DC voltage110Vdc125Vdc (Operative range 88 to 150Vdc)220Vdc25OVdc (Operative range 176 to300Vdc)48Vdc54Vdc60Vdc (Operative range 384to 72Vdc)
Overload rating AC current input 4 times rated continuous
100 times rated for 1 sAC voltage input 2 times rated continuous
25 times rated for is
Burden AC current circuit 03VA per phase (at rated 5A)
04VA at zero sequence circuit (at rated 5A)01 VA per phase (at rated 1 A)03VA at zero sequence circuit (at rated 1A)
AC voltage circuit 01VA (at rated voltage)DC power supply less than 14W (quiescent)
less than 25W (operation)Binary input circuit 05Winput at 110Vdc
Current differential protection Minimum operate current (ik) 010 to 050pu in 001pu stepsSlope 1 (p1) 10 to 100 in 1 stepsSlope 2 (p2) 50 to 200 in 1 stepskp 100 to 1OOOpu in 001pu stepsVector group compensation (Winding 1 to 3) (dl -d3)
0 to 11 (0 to 330deg in 30deg steps)CT ratio correction (Winding 1 to 3) (kct1-kct3)
0 05 to 200 in 001 stepsInrush setting (2nd harmonic ratio) (k2f) 10 to 50 in 1 stepsOverexcitation setting (5th harmonic ratio) (k5f)
10 to 100 in 1 steps
High-set differential over current protection Over current (kh) 200 to 20OOpu in 001pu steps
Restricted earth fault protectionMinimum operate current 005 to 1OOpu in 001pu stepsSlope 1 (p1) 10Slope 2 (p2) 50 to 100 in 1 stepskp 050 to 2OOpu in 001pu stepsCT ratio correction (kct) 100 to 5000 in 001 steps
Operating time of current differential element
Current differential element typical 30msHigh-set differential over current element typical 20ms
Accuracy of current differential element Current differential protection plusmn5
Reset value less than 105
Time-over current protection High-set over current element Pick up level (OC) 01 to 20Opu in 01pu stepsDelay time (TOC) 000 to 1 000s in 001s stepsOperating time typical 30msInverse time over current elementPick up level (OCI) 010 to 5OOpu in 001pu stepsTime multiplier (TOCI) 005 to 100 in 001 stepsCharacteristic Three IEC standard 60255-3 (Standard
inverse Very inverse Extremely inverse)or a Long-time inverseRefer to Figure 3
Accuracy of inverse time characteristicsStandard Very and Long-time inverse EC 60255-3 class 5Extremely inverse IEC 60255-3 class 75
Accuracy of time over current protection
Pickup value plusmn5
Thermal overload protection Thermal time constant (τ) 05 to 500Os in 01s stepsConstant (k) 010 to 400 in 001 stepsBasic current (IB) 050 to 250pu in 001pu stepsSpecial load current before overload (Ip) 000 to 1OOpu in 001
stepsTime for alarming (TA) 0 to 10 min in 1 min steps
Accuracy of thermal overload protection
Operating time plusmn10
Frequency protectionOver frequency 5000 to 55OOHz in 001 Hz steps (50Hz relay)
6000 to 66OOHz in 001 Hz steps (60Hz relay) Under frequency 4500 to 50OOHz in 001 Hz steps (50Hz relay)
5400 to 60OOHz in 001 Hz steps (60Hz relay)Start time less than 100msUnder voltage blocking 40 to 100V in 1V steps
Accuracy of frequency protection
Pickup valueplusmn
003Hz
Overexcitation protection Pickup voltage 1000 to 120OV in O1 V stepsAlarm level (A) 103 to 130pu in 001pu stepsHigh level (H) 110 to 140pu in 001pu stepsLow level (L) 105 to 130pu in 001pu stepsLT (Definite time) 1 to 600s in 1s stepsHT (Definite time) 1 to 600s in is stepsTVFH (Definite time) 1 to 600s in 1s stepsTVFA (Definite time) 1 to 600s in 1s stepsStart time less than 130ms
TECHNICAL DATATECHNICAL DATATECHNICAL DATATECHNICAL DATA
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Accuracy plusmn2 of pickup voltage
Frequency range plusmn2
Disturbance record initiationOver current element 01 to 20OOpu in 001pu steps
Earth fault 005 to 20OOpu in 001pu stepsPre-fault time 03s (fixed)Post-fault time 01 to 3s
Communication port Front communication port (local PC)Connection Point to pointCable type Multi-core (straight)Cable length 15m (max)Connector RS232C 9-way D-type femaleRear communication port (remote PC)Signal level RS485Transmission data rate for RSM system 64kbpsConnection Multidrop mode (max 32 relays)Connector Screw terminalsCable and length Twisted-pair cable max
1200mIsolation 2kVac for 1 min
Transmission data rate for protocol IEC 60870-5-103 96 192kbpsInterface to optional fibre can be provided for IEC60870-5-103Connector type ST type
IRIG-B portConnection BNC connector Cable type 50 ohm coaxial cable
Atmospheric environment Temperature (IEC60255-6)
Operation guarantee -10 to +55
Storage -20 to +70
Humidity (IEC60068-2-3) 4 days at 93 and 40
Binary inputsMinimum operating voltage 70Vdc at 110Vdc125Vdc rating
Contact ratingsTrip contactsMake and carry 5A continuously
30A 290Vdc for 05s (LR=10ms)Break 015A 290Vdc (LR=40ms)
Auxiliary contactsMake and carry 4A continuously
20A 290Vdc for 05s (LR≧5ms)Break 01 A 290Vdc (LR=40ms)
DurabilityLoaded contact 10000 operations minimumUnloaded contact 100000 operations minimum
Mechanical designWeight 12kgCase color Munsell No10YR805Isolation IP51 Installation Flush mounting or rack mounting
Vibration testThe relay withstands vibration in the frequency range of 10 to150Hz with a sweep rate of 1 octave per minute in accordance withIEC Standard 60255-21-1 Class 1
Shock and bump test The relay withstands the shocks and bumps specified in IECStandard 60255-21-2 Class 1
Seismic test
The relay withstands the seismic specified in IEC Standard60255-21-3 Class 1
Dielectric test
The relay withstands 2kV at 50 or 60Hz for 1 minute between allcircuits and the case and between all separate circuits inaccordance with IEC Standard 60255-5 The relay withstands 1 kVat 50 or 60Hz for 1 minute across the open contacts in accordancewith ANSIIEEE C3790
Impulse voltage test
The relay withstands 5kV peak and 1250ps 05J waveformapplied both transversely and between relay terminals and earth inaccordance with IEC Standard 60255-5
1 MHz burst disturbance test
The relay withstands 1 MHz for 2s with 25kHz 25kV attenuatedto half in 3 to 6 cycles between independent circuits andindependent circuits and case earth and 1OkV across terminals of the same circuit in accordance with IEC Standard 60255-22-1Class 3
Radiated electromagnetic field
disturbance test
The relay withstands 25 to 1OOOMHz 10Vm radiated field inaccordance with IEC Standard 60255-22-3 Class 3
Electrostatic discharge test
The relay withstands the following magnitudes of electrostaticdischarge in accordance with IEC Standard 60255-22-2Contact discharge 6kV Class 3Air discharge 15kV Class 4
Fast transient disturbance testThe relay withstands 4kV ア 10 25kHz applied in common mode
for at least 1 minute in accordance with IEC Standard 60255-22-4Class 4
Surge immunity
The relay withstands 4kV peak and 1250ms between all groupsand case earth and 2kV peak and 1250ms between terminals of each group in accordance with IEC Standard 61000-4-5 Level 4
EMC compliance
Conformity to 89336EEC generic standards EN50081-2EN50082-2Product safety conformity to 7323EEC generic safety standardsEN61010-1 EN60950
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Protocol converter(Option)
Type G1PR1 AC power supply
Voltage 100110VFrequency 50 or 60Hz
Burden less than 20W
Transmission data ratePC side (RS232C) 96 192 384kbpsRelay side (RS485) 64kbps
Size 320(W)X1425(H)X430(D)Weight 7kg
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ORDERING
1 Transformer Protection Relay
2 Protocol Converter (Option)
12
G1PR1
0GRT100
Relay TypeTransformer protection relay GRT100Relay Model
-Model 100 2 three-phase current inputs for 2-windingtransformer
13 N0 configurable output contacts23 N0 configurable output contacts
101 102
-Model 200 3 three-phase current inputs for 2-winding and3-winding transformer
13 N0 configurable output contacts23 N0 configurable output contacts
201 202
CT rating
1A5A
1 2
Frequency50Hz60Hz
1 2
DC power supply rating
1OOV125V220V250V48V54V60V
1 23
Type
Protocol converter G1PR1Model
Not available for external time synchronizationAvailable for external time synchronization (IRIG-B)Available for external time synchronization (IRIG-B and GPS)
01 0203
AC power supply rating
AC 100110V 10
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MEMO
19
GRT100
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MEMO
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TOSHIBA CORPORATIONPOWER SYSTEMS amp SERVICES COMPANYUTILITY POWER SYSTEMS ENGINEERING DEPT 1-1
SHIBAURA1-CHOUME MINATO-KU TOKYO
105-800
1 JapanPHONE 03-3457-3631
FACSIMILE 03-54449196
6335-1 rsquo01-1 C15
882019 grt100 toshiba
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Slope 1 provides sensitivity to low-level faults For higher-level faults slope 2 with increased biascompensates for the effects of CT saturation
GRT100 includes internal vector group compensation andCT ratio correction so that the relay requires no interposingCTs
During periods of transformer energization the use of a
second harmonic restraint method blocks the relayoperation
When the transformer is overexcited due to a transientpower system disturbance the use of a fifth harmonicrestraint method blocks the relay operation
High-set Differential Over currentProtection
GRT100 also includes high-set unrestrained over currentelement applied in the differential circuit and ensures rapidclearance of heavy internal faults
Restricted Earth Fault ProtectionEmploying residual current of each winding and neutralpoint current Restricted Earth Fault (REF) protectionprovides a highly sensitive differential protection for earthfaults in a transformer that has a star point is directlyearthed or low impedance earthed
The REF element has a dual slope percentagecharacteristic as shown in Figure 2 and the independentelements can be a lied for each transformer windin
Time-over current Protection
The over current protection can be applied to two or threewindings for phase to phase faults and neutral points of thetransformer for phase to earth faults on the high- andlow-voltage side to provide backup protection The inversetime over current elements conform to either of three IECStandard characteristics (Standard inverse Very inverseand Extremely inverse) or a Long-time inverse
characteristics The characteristics of each element areshown in Figure 3
The high-set over current element provides aninstantaneous or definite time over current protection
Fig 2 hardware block diagram
2
Fig 1 Percentage differential element Fig 2 Characteristic of REF
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GRT100
Frequency Protection
GRT100 has two frequency elements which provide thefollowing schemes Under frequency protectionOver frequency protection
Over excitation Protection
A single phase-to-phase connected voltage input isprovided to detect over excitation Alarms and trippingbased on a measurement of the voltagefrequency ratio areprovided The voltagefrequency ratio is calculated usingper unit quantities The alarm is definite time delayed whilstthe characteristic may be selected as either having adefinite time or an inverse time delay as shown in Figure 5
3
Thermal image
I2-lp2 I2-(klB)2
(l2-lp2)(1-TA τ) l2-(klB)2
wheret Operating time
τ Thermal time constant
k ConstantI Relay currentIB Basic currentIp Specified load current before the overload occursTA Time for alarm
Fig 3 Characteristics of inverse time delayed over current element
Fig 4 Characteristic of thermal overload element
Alarm t= τIn
Trip t=τIn
Thermal Overload Protection (alarmingandor tripping)
The characteristics are exponential functions according toIEC 60255-8 standards and take into account the 12Rlosses due to the particular operational current and thesimultaneous cooling due to the coolant In this way thetripping time during an overload condition takes thepre-overload into consideration An alarm can be set to
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Figure 7 shows the hardware block diagram of the relay
The relay has a multiple microprocessor design Themicroprocessors perform software functions such as signalprocessing protection algorithm scheme logic output relaycontrol and handling of the human interfaceAnalog inputs include phase current inputs residual currentinputs and phase voltage inputs The number of analog inputsdepends on the model of the relayThe internal auxiliary transformers are used to isolate stepdown and condition the inputs from the VT and CTs Their output signals are then converted into digital data for further processing The front panel contains a 4 x 40 character liquidcrystal display (LCD) and 19 pushbutton keys to provide localaccess to the relay menu There are also 8 light emittingdiodes (LED) for visual indication of the status of the relay
The relay provides three communication ports RS232C for connection of a local PC RS485 for a remote PC and IRIG-Bfor an external clock
The terminal blocks are located at the rear of the relayproviding connections for all inputoutput circuitsThe relay is housed in a type-A case suitable for either rackor panel mounting as shown in Figures 14 and 15
Metering and Monitoring
The following power system data is measured continuouslyand displayed on the LCD on the relay fascia at the local PCand the remote PC when connected
Currents (phase phase to phase symmetrical components)Differential currentsVoltage (phase to phase)Frequency
HARDWARE
METERING AND RECORDING
AC Inputs and Protection Elements
Figure 6 shows the typical relationship between the AC inputsand protection elements
Trip andor Indication of ExternalProtection Devices
External signals such as overpressure devices and Buchholzrelay operation can be applied through 4 binary input circuitsLogic can be arranged for alarms event recording andtripping The binary input circuit is provided with a logic levelinversion functionFor redundancy it is recommended to route tripping from the
Buchholz or overpressure device in parallel to the relay
Fig 5 Characteristic of over excitation
Fig 6 AC inputs and protection elements
Fig 7 hardware block diagram
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GRT100Currents voltages and differential currents can be indicatedas primary or secondary valuesThe user can monitor the following output and status on theLCD and at localremote PCsRelay element output
Binary inputoutput
Event Record
The most recent 96 time-tagged events are stored with 1
ms resolution Events recorded are as follows-Tripping-Alarms-Change of binary input signal-Change of relay setting-Relay failure
Fault Record
A relay trip initiates fault recording Time-tagged fault data
can be stored for the 8 most recent faults Fault recorditems are as followsDate and timeOperating phaseTripping modePre-fault and post-fault current data (phase phase tophase symmetrical components)
Disturbance Record
The relay can record 22 analog and 30 binary signals Thedisturbance recorder is initiated by operation of the over current element andor relay tripping In respect to analogdata phase currents neutral current and phase-to-phasevoltage are recorded
Pre-fault recording time is fixed at 300ms and post-faultrecording time can be set from 100ms to 3s The maximumnumber of stored records depends on the post-faultrecording time In the case of a post-fault recording time of 500ms up to 20 disturbance records can be stored Therecord number of the recorded data is displayed on theLCD
Calendar and Time
The calendar and time are provided for time tagging of recorded data Synchronization with GPS (GlobalPositioning System) is achieved via the IRIG-B port
Relay Front Panel
The relay front panel incorporates the following humaninterfacesSetting the relay and viewing stored data are possible usingthe
5
Liquid Crystal Display (LCD) and operation keys40 characters 4 line LCD with backlight8 Light Emitting Diodes (LED) including 4 that areconfigurableOperation keys
RS232C portMonitoring jacks
Figure 8 shows the relay front panel
The following items can be displayed on the LCD
- Setting- Metering- Event records- Fault records- The number of disturbance records- Any failure message detected by the automatic supervision Password protection can be provided from the setting menuon the LCD to provide security for relay setting changesAfter the password has been set the password must beentered to access the setting menu from a local or remotePC as well as on the LCD
The contents of metering fault records and relay failures
can be monitored by pressing the VIEW key The VIEW keycan be pressed without removing the relay front cover
Arbitrary signals can be assigned to the four user configurable LEDs
Two monitoring jacks are operable when the test mode isselected in the LCD window An oscilloscope can beconnected to the relay through these jacks Selection of output signals on the monitoring jacks can be set from theLCD menu
HUMAN INTERFACE
Fig 8 Relay front panel
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Local PC
The user can communicate with the GRT100 from a localPC via the RS232C port on the relay fascia The followingdata can be viewed or analyzed on the local PC with
RSM100 software- Setting- Metering- Event records- Fault records- Disturbance records
Remote Setting and Monitoring (RSM)
GRT100 can be connected to the RSIVI system via theRS485 interface at the rear of the relay The user canoperate the relay from a remote PC in the same way asfrom a local PC
A maximum of 32 relays can be connected to the remotePC in multi-drop mode via the protocol converter (option) The RSM100 software is also used to communicate with therelay and to view or analyze disturbance records on theremote PC
The data transmission rate between relays and the protocolconverter is 64kbps
The relay is compliant with the transmission protocoldefined by IEC 60870-5103
Figure 9 shows the configuration of the RSM system
Relay Setting
The user can input or change settings using the operationkeys on the relay fascia or via a local or remote PC with theRSIVI system Password protection is provided to changesettings
6
Eight active setting groups are provided This allows theuser to set one group for normal operating conditions whileother groups may be set to cover alternative operating
conditions
Configurable Binary Output Contacts
GRT100 is provided with 13 or 23 user configurablenormally open output contacts used for indication andalarm The number of outputs varies according to the relaymodel
Binary Inputs
GRT100 is provided with 8 binary inputs for trip andor indication of external protection devices etc The binaryinput circuits are provided with a logic level inversion
function
Fig 9 Remote setting and monitoring system
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GRT100
7
PC DISPLAY
Fault record
Event record
Vector diagram
Metering
Waveform data analysis
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Automatic Monitoring Function
The automatic monitoring function will detect failuresshould they occur that might cause unwanted operationThe items monitored include the following- Analog input circuits- Analog-to-Digital converter - Watchdog timer - DC power supply circuits- CPU
Alarms
In the unlikely event that a relay failure should occur this isdetected by automatic monitoring and the LED ALARM onthe relay fascia is illuminated A binary RELAY FAILUREoutput is simultaneously operated and the datetime of any
such failure would be stored in the event record
AUTOMATIC MONITORING
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GRT100
9
RatingsAC current (In) 1A or 5AAC voltage 100V 110V 115V 120VFrequency 50Hz or 60HzDC power supply 110Vdc125Vdc (Operative range 88 to 150Vdc)
220Vdc25OVdc (Operative range 176 to300Vdc)48Vdc54Vdc60Vdc (Operative range 384to 72Vdc)
AC ripple on DC supply IEC 60255-11 maximum 12DC supply interruption IEC 60255-11
Permissive duration of DC supply voltage interruption tomaintain normal operation less than 50ms at 110VdcRestart time less than 10s
Binary input circuit DC voltage110Vdc125Vdc (Operative range 88 to 150Vdc)220Vdc25OVdc (Operative range 176 to300Vdc)48Vdc54Vdc60Vdc (Operative range 384to 72Vdc)
Overload rating AC current input 4 times rated continuous
100 times rated for 1 sAC voltage input 2 times rated continuous
25 times rated for is
Burden AC current circuit 03VA per phase (at rated 5A)
04VA at zero sequence circuit (at rated 5A)01 VA per phase (at rated 1 A)03VA at zero sequence circuit (at rated 1A)
AC voltage circuit 01VA (at rated voltage)DC power supply less than 14W (quiescent)
less than 25W (operation)Binary input circuit 05Winput at 110Vdc
Current differential protection Minimum operate current (ik) 010 to 050pu in 001pu stepsSlope 1 (p1) 10 to 100 in 1 stepsSlope 2 (p2) 50 to 200 in 1 stepskp 100 to 1OOOpu in 001pu stepsVector group compensation (Winding 1 to 3) (dl -d3)
0 to 11 (0 to 330deg in 30deg steps)CT ratio correction (Winding 1 to 3) (kct1-kct3)
0 05 to 200 in 001 stepsInrush setting (2nd harmonic ratio) (k2f) 10 to 50 in 1 stepsOverexcitation setting (5th harmonic ratio) (k5f)
10 to 100 in 1 steps
High-set differential over current protection Over current (kh) 200 to 20OOpu in 001pu steps
Restricted earth fault protectionMinimum operate current 005 to 1OOpu in 001pu stepsSlope 1 (p1) 10Slope 2 (p2) 50 to 100 in 1 stepskp 050 to 2OOpu in 001pu stepsCT ratio correction (kct) 100 to 5000 in 001 steps
Operating time of current differential element
Current differential element typical 30msHigh-set differential over current element typical 20ms
Accuracy of current differential element Current differential protection plusmn5
Reset value less than 105
Time-over current protection High-set over current element Pick up level (OC) 01 to 20Opu in 01pu stepsDelay time (TOC) 000 to 1 000s in 001s stepsOperating time typical 30msInverse time over current elementPick up level (OCI) 010 to 5OOpu in 001pu stepsTime multiplier (TOCI) 005 to 100 in 001 stepsCharacteristic Three IEC standard 60255-3 (Standard
inverse Very inverse Extremely inverse)or a Long-time inverseRefer to Figure 3
Accuracy of inverse time characteristicsStandard Very and Long-time inverse EC 60255-3 class 5Extremely inverse IEC 60255-3 class 75
Accuracy of time over current protection
Pickup value plusmn5
Thermal overload protection Thermal time constant (τ) 05 to 500Os in 01s stepsConstant (k) 010 to 400 in 001 stepsBasic current (IB) 050 to 250pu in 001pu stepsSpecial load current before overload (Ip) 000 to 1OOpu in 001
stepsTime for alarming (TA) 0 to 10 min in 1 min steps
Accuracy of thermal overload protection
Operating time plusmn10
Frequency protectionOver frequency 5000 to 55OOHz in 001 Hz steps (50Hz relay)
6000 to 66OOHz in 001 Hz steps (60Hz relay) Under frequency 4500 to 50OOHz in 001 Hz steps (50Hz relay)
5400 to 60OOHz in 001 Hz steps (60Hz relay)Start time less than 100msUnder voltage blocking 40 to 100V in 1V steps
Accuracy of frequency protection
Pickup valueplusmn
003Hz
Overexcitation protection Pickup voltage 1000 to 120OV in O1 V stepsAlarm level (A) 103 to 130pu in 001pu stepsHigh level (H) 110 to 140pu in 001pu stepsLow level (L) 105 to 130pu in 001pu stepsLT (Definite time) 1 to 600s in 1s stepsHT (Definite time) 1 to 600s in is stepsTVFH (Definite time) 1 to 600s in 1s stepsTVFA (Definite time) 1 to 600s in 1s stepsStart time less than 130ms
TECHNICAL DATATECHNICAL DATATECHNICAL DATATECHNICAL DATA
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Accuracy plusmn2 of pickup voltage
Frequency range plusmn2
Disturbance record initiationOver current element 01 to 20OOpu in 001pu steps
Earth fault 005 to 20OOpu in 001pu stepsPre-fault time 03s (fixed)Post-fault time 01 to 3s
Communication port Front communication port (local PC)Connection Point to pointCable type Multi-core (straight)Cable length 15m (max)Connector RS232C 9-way D-type femaleRear communication port (remote PC)Signal level RS485Transmission data rate for RSM system 64kbpsConnection Multidrop mode (max 32 relays)Connector Screw terminalsCable and length Twisted-pair cable max
1200mIsolation 2kVac for 1 min
Transmission data rate for protocol IEC 60870-5-103 96 192kbpsInterface to optional fibre can be provided for IEC60870-5-103Connector type ST type
IRIG-B portConnection BNC connector Cable type 50 ohm coaxial cable
Atmospheric environment Temperature (IEC60255-6)
Operation guarantee -10 to +55
Storage -20 to +70
Humidity (IEC60068-2-3) 4 days at 93 and 40
Binary inputsMinimum operating voltage 70Vdc at 110Vdc125Vdc rating
Contact ratingsTrip contactsMake and carry 5A continuously
30A 290Vdc for 05s (LR=10ms)Break 015A 290Vdc (LR=40ms)
Auxiliary contactsMake and carry 4A continuously
20A 290Vdc for 05s (LR≧5ms)Break 01 A 290Vdc (LR=40ms)
DurabilityLoaded contact 10000 operations minimumUnloaded contact 100000 operations minimum
Mechanical designWeight 12kgCase color Munsell No10YR805Isolation IP51 Installation Flush mounting or rack mounting
Vibration testThe relay withstands vibration in the frequency range of 10 to150Hz with a sweep rate of 1 octave per minute in accordance withIEC Standard 60255-21-1 Class 1
Shock and bump test The relay withstands the shocks and bumps specified in IECStandard 60255-21-2 Class 1
Seismic test
The relay withstands the seismic specified in IEC Standard60255-21-3 Class 1
Dielectric test
The relay withstands 2kV at 50 or 60Hz for 1 minute between allcircuits and the case and between all separate circuits inaccordance with IEC Standard 60255-5 The relay withstands 1 kVat 50 or 60Hz for 1 minute across the open contacts in accordancewith ANSIIEEE C3790
Impulse voltage test
The relay withstands 5kV peak and 1250ps 05J waveformapplied both transversely and between relay terminals and earth inaccordance with IEC Standard 60255-5
1 MHz burst disturbance test
The relay withstands 1 MHz for 2s with 25kHz 25kV attenuatedto half in 3 to 6 cycles between independent circuits andindependent circuits and case earth and 1OkV across terminals of the same circuit in accordance with IEC Standard 60255-22-1Class 3
Radiated electromagnetic field
disturbance test
The relay withstands 25 to 1OOOMHz 10Vm radiated field inaccordance with IEC Standard 60255-22-3 Class 3
Electrostatic discharge test
The relay withstands the following magnitudes of electrostaticdischarge in accordance with IEC Standard 60255-22-2Contact discharge 6kV Class 3Air discharge 15kV Class 4
Fast transient disturbance testThe relay withstands 4kV ア 10 25kHz applied in common mode
for at least 1 minute in accordance with IEC Standard 60255-22-4Class 4
Surge immunity
The relay withstands 4kV peak and 1250ms between all groupsand case earth and 2kV peak and 1250ms between terminals of each group in accordance with IEC Standard 61000-4-5 Level 4
EMC compliance
Conformity to 89336EEC generic standards EN50081-2EN50082-2Product safety conformity to 7323EEC generic safety standardsEN61010-1 EN60950
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Protocol converter(Option)
Type G1PR1 AC power supply
Voltage 100110VFrequency 50 or 60Hz
Burden less than 20W
Transmission data ratePC side (RS232C) 96 192 384kbpsRelay side (RS485) 64kbps
Size 320(W)X1425(H)X430(D)Weight 7kg
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ORDERING
1 Transformer Protection Relay
2 Protocol Converter (Option)
12
G1PR1
0GRT100
Relay TypeTransformer protection relay GRT100Relay Model
-Model 100 2 three-phase current inputs for 2-windingtransformer
13 N0 configurable output contacts23 N0 configurable output contacts
101 102
-Model 200 3 three-phase current inputs for 2-winding and3-winding transformer
13 N0 configurable output contacts23 N0 configurable output contacts
201 202
CT rating
1A5A
1 2
Frequency50Hz60Hz
1 2
DC power supply rating
1OOV125V220V250V48V54V60V
1 23
Type
Protocol converter G1PR1Model
Not available for external time synchronizationAvailable for external time synchronization (IRIG-B)Available for external time synchronization (IRIG-B and GPS)
01 0203
AC power supply rating
AC 100110V 10
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MEMO
19
GRT100
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MEMO
20
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TOSHIBA CORPORATIONPOWER SYSTEMS amp SERVICES COMPANYUTILITY POWER SYSTEMS ENGINEERING DEPT 1-1
SHIBAURA1-CHOUME MINATO-KU TOKYO
105-800
1 JapanPHONE 03-3457-3631
FACSIMILE 03-54449196
6335-1 rsquo01-1 C15
882019 grt100 toshiba
httpslidepdfcomreaderfullgrt100-toshiba 524
GRT100
Frequency Protection
GRT100 has two frequency elements which provide thefollowing schemes Under frequency protectionOver frequency protection
Over excitation Protection
A single phase-to-phase connected voltage input isprovided to detect over excitation Alarms and trippingbased on a measurement of the voltagefrequency ratio areprovided The voltagefrequency ratio is calculated usingper unit quantities The alarm is definite time delayed whilstthe characteristic may be selected as either having adefinite time or an inverse time delay as shown in Figure 5
3
Thermal image
I2-lp2 I2-(klB)2
(l2-lp2)(1-TA τ) l2-(klB)2
wheret Operating time
τ Thermal time constant
k ConstantI Relay currentIB Basic currentIp Specified load current before the overload occursTA Time for alarm
Fig 3 Characteristics of inverse time delayed over current element
Fig 4 Characteristic of thermal overload element
Alarm t= τIn
Trip t=τIn
Thermal Overload Protection (alarmingandor tripping)
The characteristics are exponential functions according toIEC 60255-8 standards and take into account the 12Rlosses due to the particular operational current and thesimultaneous cooling due to the coolant In this way thetripping time during an overload condition takes thepre-overload into consideration An alarm can be set to
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Figure 7 shows the hardware block diagram of the relay
The relay has a multiple microprocessor design Themicroprocessors perform software functions such as signalprocessing protection algorithm scheme logic output relaycontrol and handling of the human interfaceAnalog inputs include phase current inputs residual currentinputs and phase voltage inputs The number of analog inputsdepends on the model of the relayThe internal auxiliary transformers are used to isolate stepdown and condition the inputs from the VT and CTs Their output signals are then converted into digital data for further processing The front panel contains a 4 x 40 character liquidcrystal display (LCD) and 19 pushbutton keys to provide localaccess to the relay menu There are also 8 light emittingdiodes (LED) for visual indication of the status of the relay
The relay provides three communication ports RS232C for connection of a local PC RS485 for a remote PC and IRIG-Bfor an external clock
The terminal blocks are located at the rear of the relayproviding connections for all inputoutput circuitsThe relay is housed in a type-A case suitable for either rackor panel mounting as shown in Figures 14 and 15
Metering and Monitoring
The following power system data is measured continuouslyand displayed on the LCD on the relay fascia at the local PCand the remote PC when connected
Currents (phase phase to phase symmetrical components)Differential currentsVoltage (phase to phase)Frequency
HARDWARE
METERING AND RECORDING
AC Inputs and Protection Elements
Figure 6 shows the typical relationship between the AC inputsand protection elements
Trip andor Indication of ExternalProtection Devices
External signals such as overpressure devices and Buchholzrelay operation can be applied through 4 binary input circuitsLogic can be arranged for alarms event recording andtripping The binary input circuit is provided with a logic levelinversion functionFor redundancy it is recommended to route tripping from the
Buchholz or overpressure device in parallel to the relay
Fig 5 Characteristic of over excitation
Fig 6 AC inputs and protection elements
Fig 7 hardware block diagram
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GRT100Currents voltages and differential currents can be indicatedas primary or secondary valuesThe user can monitor the following output and status on theLCD and at localremote PCsRelay element output
Binary inputoutput
Event Record
The most recent 96 time-tagged events are stored with 1
ms resolution Events recorded are as follows-Tripping-Alarms-Change of binary input signal-Change of relay setting-Relay failure
Fault Record
A relay trip initiates fault recording Time-tagged fault data
can be stored for the 8 most recent faults Fault recorditems are as followsDate and timeOperating phaseTripping modePre-fault and post-fault current data (phase phase tophase symmetrical components)
Disturbance Record
The relay can record 22 analog and 30 binary signals Thedisturbance recorder is initiated by operation of the over current element andor relay tripping In respect to analogdata phase currents neutral current and phase-to-phasevoltage are recorded
Pre-fault recording time is fixed at 300ms and post-faultrecording time can be set from 100ms to 3s The maximumnumber of stored records depends on the post-faultrecording time In the case of a post-fault recording time of 500ms up to 20 disturbance records can be stored Therecord number of the recorded data is displayed on theLCD
Calendar and Time
The calendar and time are provided for time tagging of recorded data Synchronization with GPS (GlobalPositioning System) is achieved via the IRIG-B port
Relay Front Panel
The relay front panel incorporates the following humaninterfacesSetting the relay and viewing stored data are possible usingthe
5
Liquid Crystal Display (LCD) and operation keys40 characters 4 line LCD with backlight8 Light Emitting Diodes (LED) including 4 that areconfigurableOperation keys
RS232C portMonitoring jacks
Figure 8 shows the relay front panel
The following items can be displayed on the LCD
- Setting- Metering- Event records- Fault records- The number of disturbance records- Any failure message detected by the automatic supervision Password protection can be provided from the setting menuon the LCD to provide security for relay setting changesAfter the password has been set the password must beentered to access the setting menu from a local or remotePC as well as on the LCD
The contents of metering fault records and relay failures
can be monitored by pressing the VIEW key The VIEW keycan be pressed without removing the relay front cover
Arbitrary signals can be assigned to the four user configurable LEDs
Two monitoring jacks are operable when the test mode isselected in the LCD window An oscilloscope can beconnected to the relay through these jacks Selection of output signals on the monitoring jacks can be set from theLCD menu
HUMAN INTERFACE
Fig 8 Relay front panel
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Local PC
The user can communicate with the GRT100 from a localPC via the RS232C port on the relay fascia The followingdata can be viewed or analyzed on the local PC with
RSM100 software- Setting- Metering- Event records- Fault records- Disturbance records
Remote Setting and Monitoring (RSM)
GRT100 can be connected to the RSIVI system via theRS485 interface at the rear of the relay The user canoperate the relay from a remote PC in the same way asfrom a local PC
A maximum of 32 relays can be connected to the remotePC in multi-drop mode via the protocol converter (option) The RSM100 software is also used to communicate with therelay and to view or analyze disturbance records on theremote PC
The data transmission rate between relays and the protocolconverter is 64kbps
The relay is compliant with the transmission protocoldefined by IEC 60870-5103
Figure 9 shows the configuration of the RSM system
Relay Setting
The user can input or change settings using the operationkeys on the relay fascia or via a local or remote PC with theRSIVI system Password protection is provided to changesettings
6
Eight active setting groups are provided This allows theuser to set one group for normal operating conditions whileother groups may be set to cover alternative operating
conditions
Configurable Binary Output Contacts
GRT100 is provided with 13 or 23 user configurablenormally open output contacts used for indication andalarm The number of outputs varies according to the relaymodel
Binary Inputs
GRT100 is provided with 8 binary inputs for trip andor indication of external protection devices etc The binaryinput circuits are provided with a logic level inversion
function
Fig 9 Remote setting and monitoring system
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GRT100
7
PC DISPLAY
Fault record
Event record
Vector diagram
Metering
Waveform data analysis
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Automatic Monitoring Function
The automatic monitoring function will detect failuresshould they occur that might cause unwanted operationThe items monitored include the following- Analog input circuits- Analog-to-Digital converter - Watchdog timer - DC power supply circuits- CPU
Alarms
In the unlikely event that a relay failure should occur this isdetected by automatic monitoring and the LED ALARM onthe relay fascia is illuminated A binary RELAY FAILUREoutput is simultaneously operated and the datetime of any
such failure would be stored in the event record
AUTOMATIC MONITORING
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GRT100
9
RatingsAC current (In) 1A or 5AAC voltage 100V 110V 115V 120VFrequency 50Hz or 60HzDC power supply 110Vdc125Vdc (Operative range 88 to 150Vdc)
220Vdc25OVdc (Operative range 176 to300Vdc)48Vdc54Vdc60Vdc (Operative range 384to 72Vdc)
AC ripple on DC supply IEC 60255-11 maximum 12DC supply interruption IEC 60255-11
Permissive duration of DC supply voltage interruption tomaintain normal operation less than 50ms at 110VdcRestart time less than 10s
Binary input circuit DC voltage110Vdc125Vdc (Operative range 88 to 150Vdc)220Vdc25OVdc (Operative range 176 to300Vdc)48Vdc54Vdc60Vdc (Operative range 384to 72Vdc)
Overload rating AC current input 4 times rated continuous
100 times rated for 1 sAC voltage input 2 times rated continuous
25 times rated for is
Burden AC current circuit 03VA per phase (at rated 5A)
04VA at zero sequence circuit (at rated 5A)01 VA per phase (at rated 1 A)03VA at zero sequence circuit (at rated 1A)
AC voltage circuit 01VA (at rated voltage)DC power supply less than 14W (quiescent)
less than 25W (operation)Binary input circuit 05Winput at 110Vdc
Current differential protection Minimum operate current (ik) 010 to 050pu in 001pu stepsSlope 1 (p1) 10 to 100 in 1 stepsSlope 2 (p2) 50 to 200 in 1 stepskp 100 to 1OOOpu in 001pu stepsVector group compensation (Winding 1 to 3) (dl -d3)
0 to 11 (0 to 330deg in 30deg steps)CT ratio correction (Winding 1 to 3) (kct1-kct3)
0 05 to 200 in 001 stepsInrush setting (2nd harmonic ratio) (k2f) 10 to 50 in 1 stepsOverexcitation setting (5th harmonic ratio) (k5f)
10 to 100 in 1 steps
High-set differential over current protection Over current (kh) 200 to 20OOpu in 001pu steps
Restricted earth fault protectionMinimum operate current 005 to 1OOpu in 001pu stepsSlope 1 (p1) 10Slope 2 (p2) 50 to 100 in 1 stepskp 050 to 2OOpu in 001pu stepsCT ratio correction (kct) 100 to 5000 in 001 steps
Operating time of current differential element
Current differential element typical 30msHigh-set differential over current element typical 20ms
Accuracy of current differential element Current differential protection plusmn5
Reset value less than 105
Time-over current protection High-set over current element Pick up level (OC) 01 to 20Opu in 01pu stepsDelay time (TOC) 000 to 1 000s in 001s stepsOperating time typical 30msInverse time over current elementPick up level (OCI) 010 to 5OOpu in 001pu stepsTime multiplier (TOCI) 005 to 100 in 001 stepsCharacteristic Three IEC standard 60255-3 (Standard
inverse Very inverse Extremely inverse)or a Long-time inverseRefer to Figure 3
Accuracy of inverse time characteristicsStandard Very and Long-time inverse EC 60255-3 class 5Extremely inverse IEC 60255-3 class 75
Accuracy of time over current protection
Pickup value plusmn5
Thermal overload protection Thermal time constant (τ) 05 to 500Os in 01s stepsConstant (k) 010 to 400 in 001 stepsBasic current (IB) 050 to 250pu in 001pu stepsSpecial load current before overload (Ip) 000 to 1OOpu in 001
stepsTime for alarming (TA) 0 to 10 min in 1 min steps
Accuracy of thermal overload protection
Operating time plusmn10
Frequency protectionOver frequency 5000 to 55OOHz in 001 Hz steps (50Hz relay)
6000 to 66OOHz in 001 Hz steps (60Hz relay) Under frequency 4500 to 50OOHz in 001 Hz steps (50Hz relay)
5400 to 60OOHz in 001 Hz steps (60Hz relay)Start time less than 100msUnder voltage blocking 40 to 100V in 1V steps
Accuracy of frequency protection
Pickup valueplusmn
003Hz
Overexcitation protection Pickup voltage 1000 to 120OV in O1 V stepsAlarm level (A) 103 to 130pu in 001pu stepsHigh level (H) 110 to 140pu in 001pu stepsLow level (L) 105 to 130pu in 001pu stepsLT (Definite time) 1 to 600s in 1s stepsHT (Definite time) 1 to 600s in is stepsTVFH (Definite time) 1 to 600s in 1s stepsTVFA (Definite time) 1 to 600s in 1s stepsStart time less than 130ms
TECHNICAL DATATECHNICAL DATATECHNICAL DATATECHNICAL DATA
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Accuracy plusmn2 of pickup voltage
Frequency range plusmn2
Disturbance record initiationOver current element 01 to 20OOpu in 001pu steps
Earth fault 005 to 20OOpu in 001pu stepsPre-fault time 03s (fixed)Post-fault time 01 to 3s
Communication port Front communication port (local PC)Connection Point to pointCable type Multi-core (straight)Cable length 15m (max)Connector RS232C 9-way D-type femaleRear communication port (remote PC)Signal level RS485Transmission data rate for RSM system 64kbpsConnection Multidrop mode (max 32 relays)Connector Screw terminalsCable and length Twisted-pair cable max
1200mIsolation 2kVac for 1 min
Transmission data rate for protocol IEC 60870-5-103 96 192kbpsInterface to optional fibre can be provided for IEC60870-5-103Connector type ST type
IRIG-B portConnection BNC connector Cable type 50 ohm coaxial cable
Atmospheric environment Temperature (IEC60255-6)
Operation guarantee -10 to +55
Storage -20 to +70
Humidity (IEC60068-2-3) 4 days at 93 and 40
Binary inputsMinimum operating voltage 70Vdc at 110Vdc125Vdc rating
Contact ratingsTrip contactsMake and carry 5A continuously
30A 290Vdc for 05s (LR=10ms)Break 015A 290Vdc (LR=40ms)
Auxiliary contactsMake and carry 4A continuously
20A 290Vdc for 05s (LR≧5ms)Break 01 A 290Vdc (LR=40ms)
DurabilityLoaded contact 10000 operations minimumUnloaded contact 100000 operations minimum
Mechanical designWeight 12kgCase color Munsell No10YR805Isolation IP51 Installation Flush mounting or rack mounting
Vibration testThe relay withstands vibration in the frequency range of 10 to150Hz with a sweep rate of 1 octave per minute in accordance withIEC Standard 60255-21-1 Class 1
Shock and bump test The relay withstands the shocks and bumps specified in IECStandard 60255-21-2 Class 1
Seismic test
The relay withstands the seismic specified in IEC Standard60255-21-3 Class 1
Dielectric test
The relay withstands 2kV at 50 or 60Hz for 1 minute between allcircuits and the case and between all separate circuits inaccordance with IEC Standard 60255-5 The relay withstands 1 kVat 50 or 60Hz for 1 minute across the open contacts in accordancewith ANSIIEEE C3790
Impulse voltage test
The relay withstands 5kV peak and 1250ps 05J waveformapplied both transversely and between relay terminals and earth inaccordance with IEC Standard 60255-5
1 MHz burst disturbance test
The relay withstands 1 MHz for 2s with 25kHz 25kV attenuatedto half in 3 to 6 cycles between independent circuits andindependent circuits and case earth and 1OkV across terminals of the same circuit in accordance with IEC Standard 60255-22-1Class 3
Radiated electromagnetic field
disturbance test
The relay withstands 25 to 1OOOMHz 10Vm radiated field inaccordance with IEC Standard 60255-22-3 Class 3
Electrostatic discharge test
The relay withstands the following magnitudes of electrostaticdischarge in accordance with IEC Standard 60255-22-2Contact discharge 6kV Class 3Air discharge 15kV Class 4
Fast transient disturbance testThe relay withstands 4kV ア 10 25kHz applied in common mode
for at least 1 minute in accordance with IEC Standard 60255-22-4Class 4
Surge immunity
The relay withstands 4kV peak and 1250ms between all groupsand case earth and 2kV peak and 1250ms between terminals of each group in accordance with IEC Standard 61000-4-5 Level 4
EMC compliance
Conformity to 89336EEC generic standards EN50081-2EN50082-2Product safety conformity to 7323EEC generic safety standardsEN61010-1 EN60950
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Protocol converter(Option)
Type G1PR1 AC power supply
Voltage 100110VFrequency 50 or 60Hz
Burden less than 20W
Transmission data ratePC side (RS232C) 96 192 384kbpsRelay side (RS485) 64kbps
Size 320(W)X1425(H)X430(D)Weight 7kg
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ORDERING
1 Transformer Protection Relay
2 Protocol Converter (Option)
12
G1PR1
0GRT100
Relay TypeTransformer protection relay GRT100Relay Model
-Model 100 2 three-phase current inputs for 2-windingtransformer
13 N0 configurable output contacts23 N0 configurable output contacts
101 102
-Model 200 3 three-phase current inputs for 2-winding and3-winding transformer
13 N0 configurable output contacts23 N0 configurable output contacts
201 202
CT rating
1A5A
1 2
Frequency50Hz60Hz
1 2
DC power supply rating
1OOV125V220V250V48V54V60V
1 23
Type
Protocol converter G1PR1Model
Not available for external time synchronizationAvailable for external time synchronization (IRIG-B)Available for external time synchronization (IRIG-B and GPS)
01 0203
AC power supply rating
AC 100110V 10
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MEMO
19
GRT100
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MEMO
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TOSHIBA CORPORATIONPOWER SYSTEMS amp SERVICES COMPANYUTILITY POWER SYSTEMS ENGINEERING DEPT 1-1
SHIBAURA1-CHOUME MINATO-KU TOKYO
105-800
1 JapanPHONE 03-3457-3631
FACSIMILE 03-54449196
6335-1 rsquo01-1 C15
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4
Figure 7 shows the hardware block diagram of the relay
The relay has a multiple microprocessor design Themicroprocessors perform software functions such as signalprocessing protection algorithm scheme logic output relaycontrol and handling of the human interfaceAnalog inputs include phase current inputs residual currentinputs and phase voltage inputs The number of analog inputsdepends on the model of the relayThe internal auxiliary transformers are used to isolate stepdown and condition the inputs from the VT and CTs Their output signals are then converted into digital data for further processing The front panel contains a 4 x 40 character liquidcrystal display (LCD) and 19 pushbutton keys to provide localaccess to the relay menu There are also 8 light emittingdiodes (LED) for visual indication of the status of the relay
The relay provides three communication ports RS232C for connection of a local PC RS485 for a remote PC and IRIG-Bfor an external clock
The terminal blocks are located at the rear of the relayproviding connections for all inputoutput circuitsThe relay is housed in a type-A case suitable for either rackor panel mounting as shown in Figures 14 and 15
Metering and Monitoring
The following power system data is measured continuouslyand displayed on the LCD on the relay fascia at the local PCand the remote PC when connected
Currents (phase phase to phase symmetrical components)Differential currentsVoltage (phase to phase)Frequency
HARDWARE
METERING AND RECORDING
AC Inputs and Protection Elements
Figure 6 shows the typical relationship between the AC inputsand protection elements
Trip andor Indication of ExternalProtection Devices
External signals such as overpressure devices and Buchholzrelay operation can be applied through 4 binary input circuitsLogic can be arranged for alarms event recording andtripping The binary input circuit is provided with a logic levelinversion functionFor redundancy it is recommended to route tripping from the
Buchholz or overpressure device in parallel to the relay
Fig 5 Characteristic of over excitation
Fig 6 AC inputs and protection elements
Fig 7 hardware block diagram
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GRT100Currents voltages and differential currents can be indicatedas primary or secondary valuesThe user can monitor the following output and status on theLCD and at localremote PCsRelay element output
Binary inputoutput
Event Record
The most recent 96 time-tagged events are stored with 1
ms resolution Events recorded are as follows-Tripping-Alarms-Change of binary input signal-Change of relay setting-Relay failure
Fault Record
A relay trip initiates fault recording Time-tagged fault data
can be stored for the 8 most recent faults Fault recorditems are as followsDate and timeOperating phaseTripping modePre-fault and post-fault current data (phase phase tophase symmetrical components)
Disturbance Record
The relay can record 22 analog and 30 binary signals Thedisturbance recorder is initiated by operation of the over current element andor relay tripping In respect to analogdata phase currents neutral current and phase-to-phasevoltage are recorded
Pre-fault recording time is fixed at 300ms and post-faultrecording time can be set from 100ms to 3s The maximumnumber of stored records depends on the post-faultrecording time In the case of a post-fault recording time of 500ms up to 20 disturbance records can be stored Therecord number of the recorded data is displayed on theLCD
Calendar and Time
The calendar and time are provided for time tagging of recorded data Synchronization with GPS (GlobalPositioning System) is achieved via the IRIG-B port
Relay Front Panel
The relay front panel incorporates the following humaninterfacesSetting the relay and viewing stored data are possible usingthe
5
Liquid Crystal Display (LCD) and operation keys40 characters 4 line LCD with backlight8 Light Emitting Diodes (LED) including 4 that areconfigurableOperation keys
RS232C portMonitoring jacks
Figure 8 shows the relay front panel
The following items can be displayed on the LCD
- Setting- Metering- Event records- Fault records- The number of disturbance records- Any failure message detected by the automatic supervision Password protection can be provided from the setting menuon the LCD to provide security for relay setting changesAfter the password has been set the password must beentered to access the setting menu from a local or remotePC as well as on the LCD
The contents of metering fault records and relay failures
can be monitored by pressing the VIEW key The VIEW keycan be pressed without removing the relay front cover
Arbitrary signals can be assigned to the four user configurable LEDs
Two monitoring jacks are operable when the test mode isselected in the LCD window An oscilloscope can beconnected to the relay through these jacks Selection of output signals on the monitoring jacks can be set from theLCD menu
HUMAN INTERFACE
Fig 8 Relay front panel
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Local PC
The user can communicate with the GRT100 from a localPC via the RS232C port on the relay fascia The followingdata can be viewed or analyzed on the local PC with
RSM100 software- Setting- Metering- Event records- Fault records- Disturbance records
Remote Setting and Monitoring (RSM)
GRT100 can be connected to the RSIVI system via theRS485 interface at the rear of the relay The user canoperate the relay from a remote PC in the same way asfrom a local PC
A maximum of 32 relays can be connected to the remotePC in multi-drop mode via the protocol converter (option) The RSM100 software is also used to communicate with therelay and to view or analyze disturbance records on theremote PC
The data transmission rate between relays and the protocolconverter is 64kbps
The relay is compliant with the transmission protocoldefined by IEC 60870-5103
Figure 9 shows the configuration of the RSM system
Relay Setting
The user can input or change settings using the operationkeys on the relay fascia or via a local or remote PC with theRSIVI system Password protection is provided to changesettings
6
Eight active setting groups are provided This allows theuser to set one group for normal operating conditions whileother groups may be set to cover alternative operating
conditions
Configurable Binary Output Contacts
GRT100 is provided with 13 or 23 user configurablenormally open output contacts used for indication andalarm The number of outputs varies according to the relaymodel
Binary Inputs
GRT100 is provided with 8 binary inputs for trip andor indication of external protection devices etc The binaryinput circuits are provided with a logic level inversion
function
Fig 9 Remote setting and monitoring system
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GRT100
7
PC DISPLAY
Fault record
Event record
Vector diagram
Metering
Waveform data analysis
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Automatic Monitoring Function
The automatic monitoring function will detect failuresshould they occur that might cause unwanted operationThe items monitored include the following- Analog input circuits- Analog-to-Digital converter - Watchdog timer - DC power supply circuits- CPU
Alarms
In the unlikely event that a relay failure should occur this isdetected by automatic monitoring and the LED ALARM onthe relay fascia is illuminated A binary RELAY FAILUREoutput is simultaneously operated and the datetime of any
such failure would be stored in the event record
AUTOMATIC MONITORING
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GRT100
9
RatingsAC current (In) 1A or 5AAC voltage 100V 110V 115V 120VFrequency 50Hz or 60HzDC power supply 110Vdc125Vdc (Operative range 88 to 150Vdc)
220Vdc25OVdc (Operative range 176 to300Vdc)48Vdc54Vdc60Vdc (Operative range 384to 72Vdc)
AC ripple on DC supply IEC 60255-11 maximum 12DC supply interruption IEC 60255-11
Permissive duration of DC supply voltage interruption tomaintain normal operation less than 50ms at 110VdcRestart time less than 10s
Binary input circuit DC voltage110Vdc125Vdc (Operative range 88 to 150Vdc)220Vdc25OVdc (Operative range 176 to300Vdc)48Vdc54Vdc60Vdc (Operative range 384to 72Vdc)
Overload rating AC current input 4 times rated continuous
100 times rated for 1 sAC voltage input 2 times rated continuous
25 times rated for is
Burden AC current circuit 03VA per phase (at rated 5A)
04VA at zero sequence circuit (at rated 5A)01 VA per phase (at rated 1 A)03VA at zero sequence circuit (at rated 1A)
AC voltage circuit 01VA (at rated voltage)DC power supply less than 14W (quiescent)
less than 25W (operation)Binary input circuit 05Winput at 110Vdc
Current differential protection Minimum operate current (ik) 010 to 050pu in 001pu stepsSlope 1 (p1) 10 to 100 in 1 stepsSlope 2 (p2) 50 to 200 in 1 stepskp 100 to 1OOOpu in 001pu stepsVector group compensation (Winding 1 to 3) (dl -d3)
0 to 11 (0 to 330deg in 30deg steps)CT ratio correction (Winding 1 to 3) (kct1-kct3)
0 05 to 200 in 001 stepsInrush setting (2nd harmonic ratio) (k2f) 10 to 50 in 1 stepsOverexcitation setting (5th harmonic ratio) (k5f)
10 to 100 in 1 steps
High-set differential over current protection Over current (kh) 200 to 20OOpu in 001pu steps
Restricted earth fault protectionMinimum operate current 005 to 1OOpu in 001pu stepsSlope 1 (p1) 10Slope 2 (p2) 50 to 100 in 1 stepskp 050 to 2OOpu in 001pu stepsCT ratio correction (kct) 100 to 5000 in 001 steps
Operating time of current differential element
Current differential element typical 30msHigh-set differential over current element typical 20ms
Accuracy of current differential element Current differential protection plusmn5
Reset value less than 105
Time-over current protection High-set over current element Pick up level (OC) 01 to 20Opu in 01pu stepsDelay time (TOC) 000 to 1 000s in 001s stepsOperating time typical 30msInverse time over current elementPick up level (OCI) 010 to 5OOpu in 001pu stepsTime multiplier (TOCI) 005 to 100 in 001 stepsCharacteristic Three IEC standard 60255-3 (Standard
inverse Very inverse Extremely inverse)or a Long-time inverseRefer to Figure 3
Accuracy of inverse time characteristicsStandard Very and Long-time inverse EC 60255-3 class 5Extremely inverse IEC 60255-3 class 75
Accuracy of time over current protection
Pickup value plusmn5
Thermal overload protection Thermal time constant (τ) 05 to 500Os in 01s stepsConstant (k) 010 to 400 in 001 stepsBasic current (IB) 050 to 250pu in 001pu stepsSpecial load current before overload (Ip) 000 to 1OOpu in 001
stepsTime for alarming (TA) 0 to 10 min in 1 min steps
Accuracy of thermal overload protection
Operating time plusmn10
Frequency protectionOver frequency 5000 to 55OOHz in 001 Hz steps (50Hz relay)
6000 to 66OOHz in 001 Hz steps (60Hz relay) Under frequency 4500 to 50OOHz in 001 Hz steps (50Hz relay)
5400 to 60OOHz in 001 Hz steps (60Hz relay)Start time less than 100msUnder voltage blocking 40 to 100V in 1V steps
Accuracy of frequency protection
Pickup valueplusmn
003Hz
Overexcitation protection Pickup voltage 1000 to 120OV in O1 V stepsAlarm level (A) 103 to 130pu in 001pu stepsHigh level (H) 110 to 140pu in 001pu stepsLow level (L) 105 to 130pu in 001pu stepsLT (Definite time) 1 to 600s in 1s stepsHT (Definite time) 1 to 600s in is stepsTVFH (Definite time) 1 to 600s in 1s stepsTVFA (Definite time) 1 to 600s in 1s stepsStart time less than 130ms
TECHNICAL DATATECHNICAL DATATECHNICAL DATATECHNICAL DATA
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Accuracy plusmn2 of pickup voltage
Frequency range plusmn2
Disturbance record initiationOver current element 01 to 20OOpu in 001pu steps
Earth fault 005 to 20OOpu in 001pu stepsPre-fault time 03s (fixed)Post-fault time 01 to 3s
Communication port Front communication port (local PC)Connection Point to pointCable type Multi-core (straight)Cable length 15m (max)Connector RS232C 9-way D-type femaleRear communication port (remote PC)Signal level RS485Transmission data rate for RSM system 64kbpsConnection Multidrop mode (max 32 relays)Connector Screw terminalsCable and length Twisted-pair cable max
1200mIsolation 2kVac for 1 min
Transmission data rate for protocol IEC 60870-5-103 96 192kbpsInterface to optional fibre can be provided for IEC60870-5-103Connector type ST type
IRIG-B portConnection BNC connector Cable type 50 ohm coaxial cable
Atmospheric environment Temperature (IEC60255-6)
Operation guarantee -10 to +55
Storage -20 to +70
Humidity (IEC60068-2-3) 4 days at 93 and 40
Binary inputsMinimum operating voltage 70Vdc at 110Vdc125Vdc rating
Contact ratingsTrip contactsMake and carry 5A continuously
30A 290Vdc for 05s (LR=10ms)Break 015A 290Vdc (LR=40ms)
Auxiliary contactsMake and carry 4A continuously
20A 290Vdc for 05s (LR≧5ms)Break 01 A 290Vdc (LR=40ms)
DurabilityLoaded contact 10000 operations minimumUnloaded contact 100000 operations minimum
Mechanical designWeight 12kgCase color Munsell No10YR805Isolation IP51 Installation Flush mounting or rack mounting
Vibration testThe relay withstands vibration in the frequency range of 10 to150Hz with a sweep rate of 1 octave per minute in accordance withIEC Standard 60255-21-1 Class 1
Shock and bump test The relay withstands the shocks and bumps specified in IECStandard 60255-21-2 Class 1
Seismic test
The relay withstands the seismic specified in IEC Standard60255-21-3 Class 1
Dielectric test
The relay withstands 2kV at 50 or 60Hz for 1 minute between allcircuits and the case and between all separate circuits inaccordance with IEC Standard 60255-5 The relay withstands 1 kVat 50 or 60Hz for 1 minute across the open contacts in accordancewith ANSIIEEE C3790
Impulse voltage test
The relay withstands 5kV peak and 1250ps 05J waveformapplied both transversely and between relay terminals and earth inaccordance with IEC Standard 60255-5
1 MHz burst disturbance test
The relay withstands 1 MHz for 2s with 25kHz 25kV attenuatedto half in 3 to 6 cycles between independent circuits andindependent circuits and case earth and 1OkV across terminals of the same circuit in accordance with IEC Standard 60255-22-1Class 3
Radiated electromagnetic field
disturbance test
The relay withstands 25 to 1OOOMHz 10Vm radiated field inaccordance with IEC Standard 60255-22-3 Class 3
Electrostatic discharge test
The relay withstands the following magnitudes of electrostaticdischarge in accordance with IEC Standard 60255-22-2Contact discharge 6kV Class 3Air discharge 15kV Class 4
Fast transient disturbance testThe relay withstands 4kV ア 10 25kHz applied in common mode
for at least 1 minute in accordance with IEC Standard 60255-22-4Class 4
Surge immunity
The relay withstands 4kV peak and 1250ms between all groupsand case earth and 2kV peak and 1250ms between terminals of each group in accordance with IEC Standard 61000-4-5 Level 4
EMC compliance
Conformity to 89336EEC generic standards EN50081-2EN50082-2Product safety conformity to 7323EEC generic safety standardsEN61010-1 EN60950
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11
Protocol converter(Option)
Type G1PR1 AC power supply
Voltage 100110VFrequency 50 or 60Hz
Burden less than 20W
Transmission data ratePC side (RS232C) 96 192 384kbpsRelay side (RS485) 64kbps
Size 320(W)X1425(H)X430(D)Weight 7kg
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ORDERING
1 Transformer Protection Relay
2 Protocol Converter (Option)
12
G1PR1
0GRT100
Relay TypeTransformer protection relay GRT100Relay Model
-Model 100 2 three-phase current inputs for 2-windingtransformer
13 N0 configurable output contacts23 N0 configurable output contacts
101 102
-Model 200 3 three-phase current inputs for 2-winding and3-winding transformer
13 N0 configurable output contacts23 N0 configurable output contacts
201 202
CT rating
1A5A
1 2
Frequency50Hz60Hz
1 2
DC power supply rating
1OOV125V220V250V48V54V60V
1 23
Type
Protocol converter G1PR1Model
Not available for external time synchronizationAvailable for external time synchronization (IRIG-B)Available for external time synchronization (IRIG-B and GPS)
01 0203
AC power supply rating
AC 100110V 10
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13
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17
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18
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MEMO
19
GRT100
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MEMO
20
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TOSHIBA CORPORATIONPOWER SYSTEMS amp SERVICES COMPANYUTILITY POWER SYSTEMS ENGINEERING DEPT 1-1
SHIBAURA1-CHOUME MINATO-KU TOKYO
105-800
1 JapanPHONE 03-3457-3631
FACSIMILE 03-54449196
6335-1 rsquo01-1 C15
882019 grt100 toshiba
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GRT100Currents voltages and differential currents can be indicatedas primary or secondary valuesThe user can monitor the following output and status on theLCD and at localremote PCsRelay element output
Binary inputoutput
Event Record
The most recent 96 time-tagged events are stored with 1
ms resolution Events recorded are as follows-Tripping-Alarms-Change of binary input signal-Change of relay setting-Relay failure
Fault Record
A relay trip initiates fault recording Time-tagged fault data
can be stored for the 8 most recent faults Fault recorditems are as followsDate and timeOperating phaseTripping modePre-fault and post-fault current data (phase phase tophase symmetrical components)
Disturbance Record
The relay can record 22 analog and 30 binary signals Thedisturbance recorder is initiated by operation of the over current element andor relay tripping In respect to analogdata phase currents neutral current and phase-to-phasevoltage are recorded
Pre-fault recording time is fixed at 300ms and post-faultrecording time can be set from 100ms to 3s The maximumnumber of stored records depends on the post-faultrecording time In the case of a post-fault recording time of 500ms up to 20 disturbance records can be stored Therecord number of the recorded data is displayed on theLCD
Calendar and Time
The calendar and time are provided for time tagging of recorded data Synchronization with GPS (GlobalPositioning System) is achieved via the IRIG-B port
Relay Front Panel
The relay front panel incorporates the following humaninterfacesSetting the relay and viewing stored data are possible usingthe
5
Liquid Crystal Display (LCD) and operation keys40 characters 4 line LCD with backlight8 Light Emitting Diodes (LED) including 4 that areconfigurableOperation keys
RS232C portMonitoring jacks
Figure 8 shows the relay front panel
The following items can be displayed on the LCD
- Setting- Metering- Event records- Fault records- The number of disturbance records- Any failure message detected by the automatic supervision Password protection can be provided from the setting menuon the LCD to provide security for relay setting changesAfter the password has been set the password must beentered to access the setting menu from a local or remotePC as well as on the LCD
The contents of metering fault records and relay failures
can be monitored by pressing the VIEW key The VIEW keycan be pressed without removing the relay front cover
Arbitrary signals can be assigned to the four user configurable LEDs
Two monitoring jacks are operable when the test mode isselected in the LCD window An oscilloscope can beconnected to the relay through these jacks Selection of output signals on the monitoring jacks can be set from theLCD menu
HUMAN INTERFACE
Fig 8 Relay front panel
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Local PC
The user can communicate with the GRT100 from a localPC via the RS232C port on the relay fascia The followingdata can be viewed or analyzed on the local PC with
RSM100 software- Setting- Metering- Event records- Fault records- Disturbance records
Remote Setting and Monitoring (RSM)
GRT100 can be connected to the RSIVI system via theRS485 interface at the rear of the relay The user canoperate the relay from a remote PC in the same way asfrom a local PC
A maximum of 32 relays can be connected to the remotePC in multi-drop mode via the protocol converter (option) The RSM100 software is also used to communicate with therelay and to view or analyze disturbance records on theremote PC
The data transmission rate between relays and the protocolconverter is 64kbps
The relay is compliant with the transmission protocoldefined by IEC 60870-5103
Figure 9 shows the configuration of the RSM system
Relay Setting
The user can input or change settings using the operationkeys on the relay fascia or via a local or remote PC with theRSIVI system Password protection is provided to changesettings
6
Eight active setting groups are provided This allows theuser to set one group for normal operating conditions whileother groups may be set to cover alternative operating
conditions
Configurable Binary Output Contacts
GRT100 is provided with 13 or 23 user configurablenormally open output contacts used for indication andalarm The number of outputs varies according to the relaymodel
Binary Inputs
GRT100 is provided with 8 binary inputs for trip andor indication of external protection devices etc The binaryinput circuits are provided with a logic level inversion
function
Fig 9 Remote setting and monitoring system
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GRT100
7
PC DISPLAY
Fault record
Event record
Vector diagram
Metering
Waveform data analysis
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8
Automatic Monitoring Function
The automatic monitoring function will detect failuresshould they occur that might cause unwanted operationThe items monitored include the following- Analog input circuits- Analog-to-Digital converter - Watchdog timer - DC power supply circuits- CPU
Alarms
In the unlikely event that a relay failure should occur this isdetected by automatic monitoring and the LED ALARM onthe relay fascia is illuminated A binary RELAY FAILUREoutput is simultaneously operated and the datetime of any
such failure would be stored in the event record
AUTOMATIC MONITORING
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GRT100
9
RatingsAC current (In) 1A or 5AAC voltage 100V 110V 115V 120VFrequency 50Hz or 60HzDC power supply 110Vdc125Vdc (Operative range 88 to 150Vdc)
220Vdc25OVdc (Operative range 176 to300Vdc)48Vdc54Vdc60Vdc (Operative range 384to 72Vdc)
AC ripple on DC supply IEC 60255-11 maximum 12DC supply interruption IEC 60255-11
Permissive duration of DC supply voltage interruption tomaintain normal operation less than 50ms at 110VdcRestart time less than 10s
Binary input circuit DC voltage110Vdc125Vdc (Operative range 88 to 150Vdc)220Vdc25OVdc (Operative range 176 to300Vdc)48Vdc54Vdc60Vdc (Operative range 384to 72Vdc)
Overload rating AC current input 4 times rated continuous
100 times rated for 1 sAC voltage input 2 times rated continuous
25 times rated for is
Burden AC current circuit 03VA per phase (at rated 5A)
04VA at zero sequence circuit (at rated 5A)01 VA per phase (at rated 1 A)03VA at zero sequence circuit (at rated 1A)
AC voltage circuit 01VA (at rated voltage)DC power supply less than 14W (quiescent)
less than 25W (operation)Binary input circuit 05Winput at 110Vdc
Current differential protection Minimum operate current (ik) 010 to 050pu in 001pu stepsSlope 1 (p1) 10 to 100 in 1 stepsSlope 2 (p2) 50 to 200 in 1 stepskp 100 to 1OOOpu in 001pu stepsVector group compensation (Winding 1 to 3) (dl -d3)
0 to 11 (0 to 330deg in 30deg steps)CT ratio correction (Winding 1 to 3) (kct1-kct3)
0 05 to 200 in 001 stepsInrush setting (2nd harmonic ratio) (k2f) 10 to 50 in 1 stepsOverexcitation setting (5th harmonic ratio) (k5f)
10 to 100 in 1 steps
High-set differential over current protection Over current (kh) 200 to 20OOpu in 001pu steps
Restricted earth fault protectionMinimum operate current 005 to 1OOpu in 001pu stepsSlope 1 (p1) 10Slope 2 (p2) 50 to 100 in 1 stepskp 050 to 2OOpu in 001pu stepsCT ratio correction (kct) 100 to 5000 in 001 steps
Operating time of current differential element
Current differential element typical 30msHigh-set differential over current element typical 20ms
Accuracy of current differential element Current differential protection plusmn5
Reset value less than 105
Time-over current protection High-set over current element Pick up level (OC) 01 to 20Opu in 01pu stepsDelay time (TOC) 000 to 1 000s in 001s stepsOperating time typical 30msInverse time over current elementPick up level (OCI) 010 to 5OOpu in 001pu stepsTime multiplier (TOCI) 005 to 100 in 001 stepsCharacteristic Three IEC standard 60255-3 (Standard
inverse Very inverse Extremely inverse)or a Long-time inverseRefer to Figure 3
Accuracy of inverse time characteristicsStandard Very and Long-time inverse EC 60255-3 class 5Extremely inverse IEC 60255-3 class 75
Accuracy of time over current protection
Pickup value plusmn5
Thermal overload protection Thermal time constant (τ) 05 to 500Os in 01s stepsConstant (k) 010 to 400 in 001 stepsBasic current (IB) 050 to 250pu in 001pu stepsSpecial load current before overload (Ip) 000 to 1OOpu in 001
stepsTime for alarming (TA) 0 to 10 min in 1 min steps
Accuracy of thermal overload protection
Operating time plusmn10
Frequency protectionOver frequency 5000 to 55OOHz in 001 Hz steps (50Hz relay)
6000 to 66OOHz in 001 Hz steps (60Hz relay) Under frequency 4500 to 50OOHz in 001 Hz steps (50Hz relay)
5400 to 60OOHz in 001 Hz steps (60Hz relay)Start time less than 100msUnder voltage blocking 40 to 100V in 1V steps
Accuracy of frequency protection
Pickup valueplusmn
003Hz
Overexcitation protection Pickup voltage 1000 to 120OV in O1 V stepsAlarm level (A) 103 to 130pu in 001pu stepsHigh level (H) 110 to 140pu in 001pu stepsLow level (L) 105 to 130pu in 001pu stepsLT (Definite time) 1 to 600s in 1s stepsHT (Definite time) 1 to 600s in is stepsTVFH (Definite time) 1 to 600s in 1s stepsTVFA (Definite time) 1 to 600s in 1s stepsStart time less than 130ms
TECHNICAL DATATECHNICAL DATATECHNICAL DATATECHNICAL DATA
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10
Accuracy plusmn2 of pickup voltage
Frequency range plusmn2
Disturbance record initiationOver current element 01 to 20OOpu in 001pu steps
Earth fault 005 to 20OOpu in 001pu stepsPre-fault time 03s (fixed)Post-fault time 01 to 3s
Communication port Front communication port (local PC)Connection Point to pointCable type Multi-core (straight)Cable length 15m (max)Connector RS232C 9-way D-type femaleRear communication port (remote PC)Signal level RS485Transmission data rate for RSM system 64kbpsConnection Multidrop mode (max 32 relays)Connector Screw terminalsCable and length Twisted-pair cable max
1200mIsolation 2kVac for 1 min
Transmission data rate for protocol IEC 60870-5-103 96 192kbpsInterface to optional fibre can be provided for IEC60870-5-103Connector type ST type
IRIG-B portConnection BNC connector Cable type 50 ohm coaxial cable
Atmospheric environment Temperature (IEC60255-6)
Operation guarantee -10 to +55
Storage -20 to +70
Humidity (IEC60068-2-3) 4 days at 93 and 40
Binary inputsMinimum operating voltage 70Vdc at 110Vdc125Vdc rating
Contact ratingsTrip contactsMake and carry 5A continuously
30A 290Vdc for 05s (LR=10ms)Break 015A 290Vdc (LR=40ms)
Auxiliary contactsMake and carry 4A continuously
20A 290Vdc for 05s (LR≧5ms)Break 01 A 290Vdc (LR=40ms)
DurabilityLoaded contact 10000 operations minimumUnloaded contact 100000 operations minimum
Mechanical designWeight 12kgCase color Munsell No10YR805Isolation IP51 Installation Flush mounting or rack mounting
Vibration testThe relay withstands vibration in the frequency range of 10 to150Hz with a sweep rate of 1 octave per minute in accordance withIEC Standard 60255-21-1 Class 1
Shock and bump test The relay withstands the shocks and bumps specified in IECStandard 60255-21-2 Class 1
Seismic test
The relay withstands the seismic specified in IEC Standard60255-21-3 Class 1
Dielectric test
The relay withstands 2kV at 50 or 60Hz for 1 minute between allcircuits and the case and between all separate circuits inaccordance with IEC Standard 60255-5 The relay withstands 1 kVat 50 or 60Hz for 1 minute across the open contacts in accordancewith ANSIIEEE C3790
Impulse voltage test
The relay withstands 5kV peak and 1250ps 05J waveformapplied both transversely and between relay terminals and earth inaccordance with IEC Standard 60255-5
1 MHz burst disturbance test
The relay withstands 1 MHz for 2s with 25kHz 25kV attenuatedto half in 3 to 6 cycles between independent circuits andindependent circuits and case earth and 1OkV across terminals of the same circuit in accordance with IEC Standard 60255-22-1Class 3
Radiated electromagnetic field
disturbance test
The relay withstands 25 to 1OOOMHz 10Vm radiated field inaccordance with IEC Standard 60255-22-3 Class 3
Electrostatic discharge test
The relay withstands the following magnitudes of electrostaticdischarge in accordance with IEC Standard 60255-22-2Contact discharge 6kV Class 3Air discharge 15kV Class 4
Fast transient disturbance testThe relay withstands 4kV ア 10 25kHz applied in common mode
for at least 1 minute in accordance with IEC Standard 60255-22-4Class 4
Surge immunity
The relay withstands 4kV peak and 1250ms between all groupsand case earth and 2kV peak and 1250ms between terminals of each group in accordance with IEC Standard 61000-4-5 Level 4
EMC compliance
Conformity to 89336EEC generic standards EN50081-2EN50082-2Product safety conformity to 7323EEC generic safety standardsEN61010-1 EN60950
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11
Protocol converter(Option)
Type G1PR1 AC power supply
Voltage 100110VFrequency 50 or 60Hz
Burden less than 20W
Transmission data ratePC side (RS232C) 96 192 384kbpsRelay side (RS485) 64kbps
Size 320(W)X1425(H)X430(D)Weight 7kg
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ORDERING
1 Transformer Protection Relay
2 Protocol Converter (Option)
12
G1PR1
0GRT100
Relay TypeTransformer protection relay GRT100Relay Model
-Model 100 2 three-phase current inputs for 2-windingtransformer
13 N0 configurable output contacts23 N0 configurable output contacts
101 102
-Model 200 3 three-phase current inputs for 2-winding and3-winding transformer
13 N0 configurable output contacts23 N0 configurable output contacts
201 202
CT rating
1A5A
1 2
Frequency50Hz60Hz
1 2
DC power supply rating
1OOV125V220V250V48V54V60V
1 23
Type
Protocol converter G1PR1Model
Not available for external time synchronizationAvailable for external time synchronization (IRIG-B)Available for external time synchronization (IRIG-B and GPS)
01 0203
AC power supply rating
AC 100110V 10
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13
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18
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MEMO
19
GRT100
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MEMO
20
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TOSHIBA CORPORATIONPOWER SYSTEMS amp SERVICES COMPANYUTILITY POWER SYSTEMS ENGINEERING DEPT 1-1
SHIBAURA1-CHOUME MINATO-KU TOKYO
105-800
1 JapanPHONE 03-3457-3631
FACSIMILE 03-54449196
6335-1 rsquo01-1 C15
882019 grt100 toshiba
httpslidepdfcomreaderfullgrt100-toshiba 824
Local PC
The user can communicate with the GRT100 from a localPC via the RS232C port on the relay fascia The followingdata can be viewed or analyzed on the local PC with
RSM100 software- Setting- Metering- Event records- Fault records- Disturbance records
Remote Setting and Monitoring (RSM)
GRT100 can be connected to the RSIVI system via theRS485 interface at the rear of the relay The user canoperate the relay from a remote PC in the same way asfrom a local PC
A maximum of 32 relays can be connected to the remotePC in multi-drop mode via the protocol converter (option) The RSM100 software is also used to communicate with therelay and to view or analyze disturbance records on theremote PC
The data transmission rate between relays and the protocolconverter is 64kbps
The relay is compliant with the transmission protocoldefined by IEC 60870-5103
Figure 9 shows the configuration of the RSM system
Relay Setting
The user can input or change settings using the operationkeys on the relay fascia or via a local or remote PC with theRSIVI system Password protection is provided to changesettings
6
Eight active setting groups are provided This allows theuser to set one group for normal operating conditions whileother groups may be set to cover alternative operating
conditions
Configurable Binary Output Contacts
GRT100 is provided with 13 or 23 user configurablenormally open output contacts used for indication andalarm The number of outputs varies according to the relaymodel
Binary Inputs
GRT100 is provided with 8 binary inputs for trip andor indication of external protection devices etc The binaryinput circuits are provided with a logic level inversion
function
Fig 9 Remote setting and monitoring system
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GRT100
7
PC DISPLAY
Fault record
Event record
Vector diagram
Metering
Waveform data analysis
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8
Automatic Monitoring Function
The automatic monitoring function will detect failuresshould they occur that might cause unwanted operationThe items monitored include the following- Analog input circuits- Analog-to-Digital converter - Watchdog timer - DC power supply circuits- CPU
Alarms
In the unlikely event that a relay failure should occur this isdetected by automatic monitoring and the LED ALARM onthe relay fascia is illuminated A binary RELAY FAILUREoutput is simultaneously operated and the datetime of any
such failure would be stored in the event record
AUTOMATIC MONITORING
882019 grt100 toshiba
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GRT100
9
RatingsAC current (In) 1A or 5AAC voltage 100V 110V 115V 120VFrequency 50Hz or 60HzDC power supply 110Vdc125Vdc (Operative range 88 to 150Vdc)
220Vdc25OVdc (Operative range 176 to300Vdc)48Vdc54Vdc60Vdc (Operative range 384to 72Vdc)
AC ripple on DC supply IEC 60255-11 maximum 12DC supply interruption IEC 60255-11
Permissive duration of DC supply voltage interruption tomaintain normal operation less than 50ms at 110VdcRestart time less than 10s
Binary input circuit DC voltage110Vdc125Vdc (Operative range 88 to 150Vdc)220Vdc25OVdc (Operative range 176 to300Vdc)48Vdc54Vdc60Vdc (Operative range 384to 72Vdc)
Overload rating AC current input 4 times rated continuous
100 times rated for 1 sAC voltage input 2 times rated continuous
25 times rated for is
Burden AC current circuit 03VA per phase (at rated 5A)
04VA at zero sequence circuit (at rated 5A)01 VA per phase (at rated 1 A)03VA at zero sequence circuit (at rated 1A)
AC voltage circuit 01VA (at rated voltage)DC power supply less than 14W (quiescent)
less than 25W (operation)Binary input circuit 05Winput at 110Vdc
Current differential protection Minimum operate current (ik) 010 to 050pu in 001pu stepsSlope 1 (p1) 10 to 100 in 1 stepsSlope 2 (p2) 50 to 200 in 1 stepskp 100 to 1OOOpu in 001pu stepsVector group compensation (Winding 1 to 3) (dl -d3)
0 to 11 (0 to 330deg in 30deg steps)CT ratio correction (Winding 1 to 3) (kct1-kct3)
0 05 to 200 in 001 stepsInrush setting (2nd harmonic ratio) (k2f) 10 to 50 in 1 stepsOverexcitation setting (5th harmonic ratio) (k5f)
10 to 100 in 1 steps
High-set differential over current protection Over current (kh) 200 to 20OOpu in 001pu steps
Restricted earth fault protectionMinimum operate current 005 to 1OOpu in 001pu stepsSlope 1 (p1) 10Slope 2 (p2) 50 to 100 in 1 stepskp 050 to 2OOpu in 001pu stepsCT ratio correction (kct) 100 to 5000 in 001 steps
Operating time of current differential element
Current differential element typical 30msHigh-set differential over current element typical 20ms
Accuracy of current differential element Current differential protection plusmn5
Reset value less than 105
Time-over current protection High-set over current element Pick up level (OC) 01 to 20Opu in 01pu stepsDelay time (TOC) 000 to 1 000s in 001s stepsOperating time typical 30msInverse time over current elementPick up level (OCI) 010 to 5OOpu in 001pu stepsTime multiplier (TOCI) 005 to 100 in 001 stepsCharacteristic Three IEC standard 60255-3 (Standard
inverse Very inverse Extremely inverse)or a Long-time inverseRefer to Figure 3
Accuracy of inverse time characteristicsStandard Very and Long-time inverse EC 60255-3 class 5Extremely inverse IEC 60255-3 class 75
Accuracy of time over current protection
Pickup value plusmn5
Thermal overload protection Thermal time constant (τ) 05 to 500Os in 01s stepsConstant (k) 010 to 400 in 001 stepsBasic current (IB) 050 to 250pu in 001pu stepsSpecial load current before overload (Ip) 000 to 1OOpu in 001
stepsTime for alarming (TA) 0 to 10 min in 1 min steps
Accuracy of thermal overload protection
Operating time plusmn10
Frequency protectionOver frequency 5000 to 55OOHz in 001 Hz steps (50Hz relay)
6000 to 66OOHz in 001 Hz steps (60Hz relay) Under frequency 4500 to 50OOHz in 001 Hz steps (50Hz relay)
5400 to 60OOHz in 001 Hz steps (60Hz relay)Start time less than 100msUnder voltage blocking 40 to 100V in 1V steps
Accuracy of frequency protection
Pickup valueplusmn
003Hz
Overexcitation protection Pickup voltage 1000 to 120OV in O1 V stepsAlarm level (A) 103 to 130pu in 001pu stepsHigh level (H) 110 to 140pu in 001pu stepsLow level (L) 105 to 130pu in 001pu stepsLT (Definite time) 1 to 600s in 1s stepsHT (Definite time) 1 to 600s in is stepsTVFH (Definite time) 1 to 600s in 1s stepsTVFA (Definite time) 1 to 600s in 1s stepsStart time less than 130ms
TECHNICAL DATATECHNICAL DATATECHNICAL DATATECHNICAL DATA
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10
Accuracy plusmn2 of pickup voltage
Frequency range plusmn2
Disturbance record initiationOver current element 01 to 20OOpu in 001pu steps
Earth fault 005 to 20OOpu in 001pu stepsPre-fault time 03s (fixed)Post-fault time 01 to 3s
Communication port Front communication port (local PC)Connection Point to pointCable type Multi-core (straight)Cable length 15m (max)Connector RS232C 9-way D-type femaleRear communication port (remote PC)Signal level RS485Transmission data rate for RSM system 64kbpsConnection Multidrop mode (max 32 relays)Connector Screw terminalsCable and length Twisted-pair cable max
1200mIsolation 2kVac for 1 min
Transmission data rate for protocol IEC 60870-5-103 96 192kbpsInterface to optional fibre can be provided for IEC60870-5-103Connector type ST type
IRIG-B portConnection BNC connector Cable type 50 ohm coaxial cable
Atmospheric environment Temperature (IEC60255-6)
Operation guarantee -10 to +55
Storage -20 to +70
Humidity (IEC60068-2-3) 4 days at 93 and 40
Binary inputsMinimum operating voltage 70Vdc at 110Vdc125Vdc rating
Contact ratingsTrip contactsMake and carry 5A continuously
30A 290Vdc for 05s (LR=10ms)Break 015A 290Vdc (LR=40ms)
Auxiliary contactsMake and carry 4A continuously
20A 290Vdc for 05s (LR≧5ms)Break 01 A 290Vdc (LR=40ms)
DurabilityLoaded contact 10000 operations minimumUnloaded contact 100000 operations minimum
Mechanical designWeight 12kgCase color Munsell No10YR805Isolation IP51 Installation Flush mounting or rack mounting
Vibration testThe relay withstands vibration in the frequency range of 10 to150Hz with a sweep rate of 1 octave per minute in accordance withIEC Standard 60255-21-1 Class 1
Shock and bump test The relay withstands the shocks and bumps specified in IECStandard 60255-21-2 Class 1
Seismic test
The relay withstands the seismic specified in IEC Standard60255-21-3 Class 1
Dielectric test
The relay withstands 2kV at 50 or 60Hz for 1 minute between allcircuits and the case and between all separate circuits inaccordance with IEC Standard 60255-5 The relay withstands 1 kVat 50 or 60Hz for 1 minute across the open contacts in accordancewith ANSIIEEE C3790
Impulse voltage test
The relay withstands 5kV peak and 1250ps 05J waveformapplied both transversely and between relay terminals and earth inaccordance with IEC Standard 60255-5
1 MHz burst disturbance test
The relay withstands 1 MHz for 2s with 25kHz 25kV attenuatedto half in 3 to 6 cycles between independent circuits andindependent circuits and case earth and 1OkV across terminals of the same circuit in accordance with IEC Standard 60255-22-1Class 3
Radiated electromagnetic field
disturbance test
The relay withstands 25 to 1OOOMHz 10Vm radiated field inaccordance with IEC Standard 60255-22-3 Class 3
Electrostatic discharge test
The relay withstands the following magnitudes of electrostaticdischarge in accordance with IEC Standard 60255-22-2Contact discharge 6kV Class 3Air discharge 15kV Class 4
Fast transient disturbance testThe relay withstands 4kV ア 10 25kHz applied in common mode
for at least 1 minute in accordance with IEC Standard 60255-22-4Class 4
Surge immunity
The relay withstands 4kV peak and 1250ms between all groupsand case earth and 2kV peak and 1250ms between terminals of each group in accordance with IEC Standard 61000-4-5 Level 4
EMC compliance
Conformity to 89336EEC generic standards EN50081-2EN50082-2Product safety conformity to 7323EEC generic safety standardsEN61010-1 EN60950
882019 grt100 toshiba
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11
Protocol converter(Option)
Type G1PR1 AC power supply
Voltage 100110VFrequency 50 or 60Hz
Burden less than 20W
Transmission data ratePC side (RS232C) 96 192 384kbpsRelay side (RS485) 64kbps
Size 320(W)X1425(H)X430(D)Weight 7kg
882019 grt100 toshiba
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ORDERING
1 Transformer Protection Relay
2 Protocol Converter (Option)
12
G1PR1
0GRT100
Relay TypeTransformer protection relay GRT100Relay Model
-Model 100 2 three-phase current inputs for 2-windingtransformer
13 N0 configurable output contacts23 N0 configurable output contacts
101 102
-Model 200 3 three-phase current inputs for 2-winding and3-winding transformer
13 N0 configurable output contacts23 N0 configurable output contacts
201 202
CT rating
1A5A
1 2
Frequency50Hz60Hz
1 2
DC power supply rating
1OOV125V220V250V48V54V60V
1 23
Type
Protocol converter G1PR1Model
Not available for external time synchronizationAvailable for external time synchronization (IRIG-B)Available for external time synchronization (IRIG-B and GPS)
01 0203
AC power supply rating
AC 100110V 10
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13
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14
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15
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17
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18
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MEMO
19
GRT100
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MEMO
20
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TOSHIBA CORPORATIONPOWER SYSTEMS amp SERVICES COMPANYUTILITY POWER SYSTEMS ENGINEERING DEPT 1-1
SHIBAURA1-CHOUME MINATO-KU TOKYO
105-800
1 JapanPHONE 03-3457-3631
FACSIMILE 03-54449196
6335-1 rsquo01-1 C15
882019 grt100 toshiba
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GRT100
7
PC DISPLAY
Fault record
Event record
Vector diagram
Metering
Waveform data analysis
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8
Automatic Monitoring Function
The automatic monitoring function will detect failuresshould they occur that might cause unwanted operationThe items monitored include the following- Analog input circuits- Analog-to-Digital converter - Watchdog timer - DC power supply circuits- CPU
Alarms
In the unlikely event that a relay failure should occur this isdetected by automatic monitoring and the LED ALARM onthe relay fascia is illuminated A binary RELAY FAILUREoutput is simultaneously operated and the datetime of any
such failure would be stored in the event record
AUTOMATIC MONITORING
882019 grt100 toshiba
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GRT100
9
RatingsAC current (In) 1A or 5AAC voltage 100V 110V 115V 120VFrequency 50Hz or 60HzDC power supply 110Vdc125Vdc (Operative range 88 to 150Vdc)
220Vdc25OVdc (Operative range 176 to300Vdc)48Vdc54Vdc60Vdc (Operative range 384to 72Vdc)
AC ripple on DC supply IEC 60255-11 maximum 12DC supply interruption IEC 60255-11
Permissive duration of DC supply voltage interruption tomaintain normal operation less than 50ms at 110VdcRestart time less than 10s
Binary input circuit DC voltage110Vdc125Vdc (Operative range 88 to 150Vdc)220Vdc25OVdc (Operative range 176 to300Vdc)48Vdc54Vdc60Vdc (Operative range 384to 72Vdc)
Overload rating AC current input 4 times rated continuous
100 times rated for 1 sAC voltage input 2 times rated continuous
25 times rated for is
Burden AC current circuit 03VA per phase (at rated 5A)
04VA at zero sequence circuit (at rated 5A)01 VA per phase (at rated 1 A)03VA at zero sequence circuit (at rated 1A)
AC voltage circuit 01VA (at rated voltage)DC power supply less than 14W (quiescent)
less than 25W (operation)Binary input circuit 05Winput at 110Vdc
Current differential protection Minimum operate current (ik) 010 to 050pu in 001pu stepsSlope 1 (p1) 10 to 100 in 1 stepsSlope 2 (p2) 50 to 200 in 1 stepskp 100 to 1OOOpu in 001pu stepsVector group compensation (Winding 1 to 3) (dl -d3)
0 to 11 (0 to 330deg in 30deg steps)CT ratio correction (Winding 1 to 3) (kct1-kct3)
0 05 to 200 in 001 stepsInrush setting (2nd harmonic ratio) (k2f) 10 to 50 in 1 stepsOverexcitation setting (5th harmonic ratio) (k5f)
10 to 100 in 1 steps
High-set differential over current protection Over current (kh) 200 to 20OOpu in 001pu steps
Restricted earth fault protectionMinimum operate current 005 to 1OOpu in 001pu stepsSlope 1 (p1) 10Slope 2 (p2) 50 to 100 in 1 stepskp 050 to 2OOpu in 001pu stepsCT ratio correction (kct) 100 to 5000 in 001 steps
Operating time of current differential element
Current differential element typical 30msHigh-set differential over current element typical 20ms
Accuracy of current differential element Current differential protection plusmn5
Reset value less than 105
Time-over current protection High-set over current element Pick up level (OC) 01 to 20Opu in 01pu stepsDelay time (TOC) 000 to 1 000s in 001s stepsOperating time typical 30msInverse time over current elementPick up level (OCI) 010 to 5OOpu in 001pu stepsTime multiplier (TOCI) 005 to 100 in 001 stepsCharacteristic Three IEC standard 60255-3 (Standard
inverse Very inverse Extremely inverse)or a Long-time inverseRefer to Figure 3
Accuracy of inverse time characteristicsStandard Very and Long-time inverse EC 60255-3 class 5Extremely inverse IEC 60255-3 class 75
Accuracy of time over current protection
Pickup value plusmn5
Thermal overload protection Thermal time constant (τ) 05 to 500Os in 01s stepsConstant (k) 010 to 400 in 001 stepsBasic current (IB) 050 to 250pu in 001pu stepsSpecial load current before overload (Ip) 000 to 1OOpu in 001
stepsTime for alarming (TA) 0 to 10 min in 1 min steps
Accuracy of thermal overload protection
Operating time plusmn10
Frequency protectionOver frequency 5000 to 55OOHz in 001 Hz steps (50Hz relay)
6000 to 66OOHz in 001 Hz steps (60Hz relay) Under frequency 4500 to 50OOHz in 001 Hz steps (50Hz relay)
5400 to 60OOHz in 001 Hz steps (60Hz relay)Start time less than 100msUnder voltage blocking 40 to 100V in 1V steps
Accuracy of frequency protection
Pickup valueplusmn
003Hz
Overexcitation protection Pickup voltage 1000 to 120OV in O1 V stepsAlarm level (A) 103 to 130pu in 001pu stepsHigh level (H) 110 to 140pu in 001pu stepsLow level (L) 105 to 130pu in 001pu stepsLT (Definite time) 1 to 600s in 1s stepsHT (Definite time) 1 to 600s in is stepsTVFH (Definite time) 1 to 600s in 1s stepsTVFA (Definite time) 1 to 600s in 1s stepsStart time less than 130ms
TECHNICAL DATATECHNICAL DATATECHNICAL DATATECHNICAL DATA
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10
Accuracy plusmn2 of pickup voltage
Frequency range plusmn2
Disturbance record initiationOver current element 01 to 20OOpu in 001pu steps
Earth fault 005 to 20OOpu in 001pu stepsPre-fault time 03s (fixed)Post-fault time 01 to 3s
Communication port Front communication port (local PC)Connection Point to pointCable type Multi-core (straight)Cable length 15m (max)Connector RS232C 9-way D-type femaleRear communication port (remote PC)Signal level RS485Transmission data rate for RSM system 64kbpsConnection Multidrop mode (max 32 relays)Connector Screw terminalsCable and length Twisted-pair cable max
1200mIsolation 2kVac for 1 min
Transmission data rate for protocol IEC 60870-5-103 96 192kbpsInterface to optional fibre can be provided for IEC60870-5-103Connector type ST type
IRIG-B portConnection BNC connector Cable type 50 ohm coaxial cable
Atmospheric environment Temperature (IEC60255-6)
Operation guarantee -10 to +55
Storage -20 to +70
Humidity (IEC60068-2-3) 4 days at 93 and 40
Binary inputsMinimum operating voltage 70Vdc at 110Vdc125Vdc rating
Contact ratingsTrip contactsMake and carry 5A continuously
30A 290Vdc for 05s (LR=10ms)Break 015A 290Vdc (LR=40ms)
Auxiliary contactsMake and carry 4A continuously
20A 290Vdc for 05s (LR≧5ms)Break 01 A 290Vdc (LR=40ms)
DurabilityLoaded contact 10000 operations minimumUnloaded contact 100000 operations minimum
Mechanical designWeight 12kgCase color Munsell No10YR805Isolation IP51 Installation Flush mounting or rack mounting
Vibration testThe relay withstands vibration in the frequency range of 10 to150Hz with a sweep rate of 1 octave per minute in accordance withIEC Standard 60255-21-1 Class 1
Shock and bump test The relay withstands the shocks and bumps specified in IECStandard 60255-21-2 Class 1
Seismic test
The relay withstands the seismic specified in IEC Standard60255-21-3 Class 1
Dielectric test
The relay withstands 2kV at 50 or 60Hz for 1 minute between allcircuits and the case and between all separate circuits inaccordance with IEC Standard 60255-5 The relay withstands 1 kVat 50 or 60Hz for 1 minute across the open contacts in accordancewith ANSIIEEE C3790
Impulse voltage test
The relay withstands 5kV peak and 1250ps 05J waveformapplied both transversely and between relay terminals and earth inaccordance with IEC Standard 60255-5
1 MHz burst disturbance test
The relay withstands 1 MHz for 2s with 25kHz 25kV attenuatedto half in 3 to 6 cycles between independent circuits andindependent circuits and case earth and 1OkV across terminals of the same circuit in accordance with IEC Standard 60255-22-1Class 3
Radiated electromagnetic field
disturbance test
The relay withstands 25 to 1OOOMHz 10Vm radiated field inaccordance with IEC Standard 60255-22-3 Class 3
Electrostatic discharge test
The relay withstands the following magnitudes of electrostaticdischarge in accordance with IEC Standard 60255-22-2Contact discharge 6kV Class 3Air discharge 15kV Class 4
Fast transient disturbance testThe relay withstands 4kV ア 10 25kHz applied in common mode
for at least 1 minute in accordance with IEC Standard 60255-22-4Class 4
Surge immunity
The relay withstands 4kV peak and 1250ms between all groupsand case earth and 2kV peak and 1250ms between terminals of each group in accordance with IEC Standard 61000-4-5 Level 4
EMC compliance
Conformity to 89336EEC generic standards EN50081-2EN50082-2Product safety conformity to 7323EEC generic safety standardsEN61010-1 EN60950
882019 grt100 toshiba
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11
Protocol converter(Option)
Type G1PR1 AC power supply
Voltage 100110VFrequency 50 or 60Hz
Burden less than 20W
Transmission data ratePC side (RS232C) 96 192 384kbpsRelay side (RS485) 64kbps
Size 320(W)X1425(H)X430(D)Weight 7kg
882019 grt100 toshiba
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ORDERING
1 Transformer Protection Relay
2 Protocol Converter (Option)
12
G1PR1
0GRT100
Relay TypeTransformer protection relay GRT100Relay Model
-Model 100 2 three-phase current inputs for 2-windingtransformer
13 N0 configurable output contacts23 N0 configurable output contacts
101 102
-Model 200 3 three-phase current inputs for 2-winding and3-winding transformer
13 N0 configurable output contacts23 N0 configurable output contacts
201 202
CT rating
1A5A
1 2
Frequency50Hz60Hz
1 2
DC power supply rating
1OOV125V220V250V48V54V60V
1 23
Type
Protocol converter G1PR1Model
Not available for external time synchronizationAvailable for external time synchronization (IRIG-B)Available for external time synchronization (IRIG-B and GPS)
01 0203
AC power supply rating
AC 100110V 10
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13
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14
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16
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17
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18
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MEMO
19
GRT100
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MEMO
20
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TOSHIBA CORPORATIONPOWER SYSTEMS amp SERVICES COMPANYUTILITY POWER SYSTEMS ENGINEERING DEPT 1-1
SHIBAURA1-CHOUME MINATO-KU TOKYO
105-800
1 JapanPHONE 03-3457-3631
FACSIMILE 03-54449196
6335-1 rsquo01-1 C15
882019 grt100 toshiba
httpslidepdfcomreaderfullgrt100-toshiba 1024
8
Automatic Monitoring Function
The automatic monitoring function will detect failuresshould they occur that might cause unwanted operationThe items monitored include the following- Analog input circuits- Analog-to-Digital converter - Watchdog timer - DC power supply circuits- CPU
Alarms
In the unlikely event that a relay failure should occur this isdetected by automatic monitoring and the LED ALARM onthe relay fascia is illuminated A binary RELAY FAILUREoutput is simultaneously operated and the datetime of any
such failure would be stored in the event record
AUTOMATIC MONITORING
882019 grt100 toshiba
httpslidepdfcomreaderfullgrt100-toshiba 1124
GRT100
9
RatingsAC current (In) 1A or 5AAC voltage 100V 110V 115V 120VFrequency 50Hz or 60HzDC power supply 110Vdc125Vdc (Operative range 88 to 150Vdc)
220Vdc25OVdc (Operative range 176 to300Vdc)48Vdc54Vdc60Vdc (Operative range 384to 72Vdc)
AC ripple on DC supply IEC 60255-11 maximum 12DC supply interruption IEC 60255-11
Permissive duration of DC supply voltage interruption tomaintain normal operation less than 50ms at 110VdcRestart time less than 10s
Binary input circuit DC voltage110Vdc125Vdc (Operative range 88 to 150Vdc)220Vdc25OVdc (Operative range 176 to300Vdc)48Vdc54Vdc60Vdc (Operative range 384to 72Vdc)
Overload rating AC current input 4 times rated continuous
100 times rated for 1 sAC voltage input 2 times rated continuous
25 times rated for is
Burden AC current circuit 03VA per phase (at rated 5A)
04VA at zero sequence circuit (at rated 5A)01 VA per phase (at rated 1 A)03VA at zero sequence circuit (at rated 1A)
AC voltage circuit 01VA (at rated voltage)DC power supply less than 14W (quiescent)
less than 25W (operation)Binary input circuit 05Winput at 110Vdc
Current differential protection Minimum operate current (ik) 010 to 050pu in 001pu stepsSlope 1 (p1) 10 to 100 in 1 stepsSlope 2 (p2) 50 to 200 in 1 stepskp 100 to 1OOOpu in 001pu stepsVector group compensation (Winding 1 to 3) (dl -d3)
0 to 11 (0 to 330deg in 30deg steps)CT ratio correction (Winding 1 to 3) (kct1-kct3)
0 05 to 200 in 001 stepsInrush setting (2nd harmonic ratio) (k2f) 10 to 50 in 1 stepsOverexcitation setting (5th harmonic ratio) (k5f)
10 to 100 in 1 steps
High-set differential over current protection Over current (kh) 200 to 20OOpu in 001pu steps
Restricted earth fault protectionMinimum operate current 005 to 1OOpu in 001pu stepsSlope 1 (p1) 10Slope 2 (p2) 50 to 100 in 1 stepskp 050 to 2OOpu in 001pu stepsCT ratio correction (kct) 100 to 5000 in 001 steps
Operating time of current differential element
Current differential element typical 30msHigh-set differential over current element typical 20ms
Accuracy of current differential element Current differential protection plusmn5
Reset value less than 105
Time-over current protection High-set over current element Pick up level (OC) 01 to 20Opu in 01pu stepsDelay time (TOC) 000 to 1 000s in 001s stepsOperating time typical 30msInverse time over current elementPick up level (OCI) 010 to 5OOpu in 001pu stepsTime multiplier (TOCI) 005 to 100 in 001 stepsCharacteristic Three IEC standard 60255-3 (Standard
inverse Very inverse Extremely inverse)or a Long-time inverseRefer to Figure 3
Accuracy of inverse time characteristicsStandard Very and Long-time inverse EC 60255-3 class 5Extremely inverse IEC 60255-3 class 75
Accuracy of time over current protection
Pickup value plusmn5
Thermal overload protection Thermal time constant (τ) 05 to 500Os in 01s stepsConstant (k) 010 to 400 in 001 stepsBasic current (IB) 050 to 250pu in 001pu stepsSpecial load current before overload (Ip) 000 to 1OOpu in 001
stepsTime for alarming (TA) 0 to 10 min in 1 min steps
Accuracy of thermal overload protection
Operating time plusmn10
Frequency protectionOver frequency 5000 to 55OOHz in 001 Hz steps (50Hz relay)
6000 to 66OOHz in 001 Hz steps (60Hz relay) Under frequency 4500 to 50OOHz in 001 Hz steps (50Hz relay)
5400 to 60OOHz in 001 Hz steps (60Hz relay)Start time less than 100msUnder voltage blocking 40 to 100V in 1V steps
Accuracy of frequency protection
Pickup valueplusmn
003Hz
Overexcitation protection Pickup voltage 1000 to 120OV in O1 V stepsAlarm level (A) 103 to 130pu in 001pu stepsHigh level (H) 110 to 140pu in 001pu stepsLow level (L) 105 to 130pu in 001pu stepsLT (Definite time) 1 to 600s in 1s stepsHT (Definite time) 1 to 600s in is stepsTVFH (Definite time) 1 to 600s in 1s stepsTVFA (Definite time) 1 to 600s in 1s stepsStart time less than 130ms
TECHNICAL DATATECHNICAL DATATECHNICAL DATATECHNICAL DATA
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Accuracy plusmn2 of pickup voltage
Frequency range plusmn2
Disturbance record initiationOver current element 01 to 20OOpu in 001pu steps
Earth fault 005 to 20OOpu in 001pu stepsPre-fault time 03s (fixed)Post-fault time 01 to 3s
Communication port Front communication port (local PC)Connection Point to pointCable type Multi-core (straight)Cable length 15m (max)Connector RS232C 9-way D-type femaleRear communication port (remote PC)Signal level RS485Transmission data rate for RSM system 64kbpsConnection Multidrop mode (max 32 relays)Connector Screw terminalsCable and length Twisted-pair cable max
1200mIsolation 2kVac for 1 min
Transmission data rate for protocol IEC 60870-5-103 96 192kbpsInterface to optional fibre can be provided for IEC60870-5-103Connector type ST type
IRIG-B portConnection BNC connector Cable type 50 ohm coaxial cable
Atmospheric environment Temperature (IEC60255-6)
Operation guarantee -10 to +55
Storage -20 to +70
Humidity (IEC60068-2-3) 4 days at 93 and 40
Binary inputsMinimum operating voltage 70Vdc at 110Vdc125Vdc rating
Contact ratingsTrip contactsMake and carry 5A continuously
30A 290Vdc for 05s (LR=10ms)Break 015A 290Vdc (LR=40ms)
Auxiliary contactsMake and carry 4A continuously
20A 290Vdc for 05s (LR≧5ms)Break 01 A 290Vdc (LR=40ms)
DurabilityLoaded contact 10000 operations minimumUnloaded contact 100000 operations minimum
Mechanical designWeight 12kgCase color Munsell No10YR805Isolation IP51 Installation Flush mounting or rack mounting
Vibration testThe relay withstands vibration in the frequency range of 10 to150Hz with a sweep rate of 1 octave per minute in accordance withIEC Standard 60255-21-1 Class 1
Shock and bump test The relay withstands the shocks and bumps specified in IECStandard 60255-21-2 Class 1
Seismic test
The relay withstands the seismic specified in IEC Standard60255-21-3 Class 1
Dielectric test
The relay withstands 2kV at 50 or 60Hz for 1 minute between allcircuits and the case and between all separate circuits inaccordance with IEC Standard 60255-5 The relay withstands 1 kVat 50 or 60Hz for 1 minute across the open contacts in accordancewith ANSIIEEE C3790
Impulse voltage test
The relay withstands 5kV peak and 1250ps 05J waveformapplied both transversely and between relay terminals and earth inaccordance with IEC Standard 60255-5
1 MHz burst disturbance test
The relay withstands 1 MHz for 2s with 25kHz 25kV attenuatedto half in 3 to 6 cycles between independent circuits andindependent circuits and case earth and 1OkV across terminals of the same circuit in accordance with IEC Standard 60255-22-1Class 3
Radiated electromagnetic field
disturbance test
The relay withstands 25 to 1OOOMHz 10Vm radiated field inaccordance with IEC Standard 60255-22-3 Class 3
Electrostatic discharge test
The relay withstands the following magnitudes of electrostaticdischarge in accordance with IEC Standard 60255-22-2Contact discharge 6kV Class 3Air discharge 15kV Class 4
Fast transient disturbance testThe relay withstands 4kV ア 10 25kHz applied in common mode
for at least 1 minute in accordance with IEC Standard 60255-22-4Class 4
Surge immunity
The relay withstands 4kV peak and 1250ms between all groupsand case earth and 2kV peak and 1250ms between terminals of each group in accordance with IEC Standard 61000-4-5 Level 4
EMC compliance
Conformity to 89336EEC generic standards EN50081-2EN50082-2Product safety conformity to 7323EEC generic safety standardsEN61010-1 EN60950
882019 grt100 toshiba
httpslidepdfcomreaderfullgrt100-toshiba 1324
11
Protocol converter(Option)
Type G1PR1 AC power supply
Voltage 100110VFrequency 50 or 60Hz
Burden less than 20W
Transmission data ratePC side (RS232C) 96 192 384kbpsRelay side (RS485) 64kbps
Size 320(W)X1425(H)X430(D)Weight 7kg
882019 grt100 toshiba
httpslidepdfcomreaderfullgrt100-toshiba 1424
ORDERING
1 Transformer Protection Relay
2 Protocol Converter (Option)
12
G1PR1
0GRT100
Relay TypeTransformer protection relay GRT100Relay Model
-Model 100 2 three-phase current inputs for 2-windingtransformer
13 N0 configurable output contacts23 N0 configurable output contacts
101 102
-Model 200 3 three-phase current inputs for 2-winding and3-winding transformer
13 N0 configurable output contacts23 N0 configurable output contacts
201 202
CT rating
1A5A
1 2
Frequency50Hz60Hz
1 2
DC power supply rating
1OOV125V220V250V48V54V60V
1 23
Type
Protocol converter G1PR1Model
Not available for external time synchronizationAvailable for external time synchronization (IRIG-B)Available for external time synchronization (IRIG-B and GPS)
01 0203
AC power supply rating
AC 100110V 10
882019 grt100 toshiba
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13
882019 grt100 toshiba
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14
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15
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16
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17
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18
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MEMO
19
GRT100
882019 grt100 toshiba
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MEMO
20
882019 grt100 toshiba
httpslidepdfcomreaderfullgrt100-toshiba 2324
882019 grt100 toshiba
httpslidepdfcomreaderfullgrt100-toshiba 2424
TOSHIBA CORPORATIONPOWER SYSTEMS amp SERVICES COMPANYUTILITY POWER SYSTEMS ENGINEERING DEPT 1-1
SHIBAURA1-CHOUME MINATO-KU TOKYO
105-800
1 JapanPHONE 03-3457-3631
FACSIMILE 03-54449196
6335-1 rsquo01-1 C15
882019 grt100 toshiba
httpslidepdfcomreaderfullgrt100-toshiba 1124
GRT100
9
RatingsAC current (In) 1A or 5AAC voltage 100V 110V 115V 120VFrequency 50Hz or 60HzDC power supply 110Vdc125Vdc (Operative range 88 to 150Vdc)
220Vdc25OVdc (Operative range 176 to300Vdc)48Vdc54Vdc60Vdc (Operative range 384to 72Vdc)
AC ripple on DC supply IEC 60255-11 maximum 12DC supply interruption IEC 60255-11
Permissive duration of DC supply voltage interruption tomaintain normal operation less than 50ms at 110VdcRestart time less than 10s
Binary input circuit DC voltage110Vdc125Vdc (Operative range 88 to 150Vdc)220Vdc25OVdc (Operative range 176 to300Vdc)48Vdc54Vdc60Vdc (Operative range 384to 72Vdc)
Overload rating AC current input 4 times rated continuous
100 times rated for 1 sAC voltage input 2 times rated continuous
25 times rated for is
Burden AC current circuit 03VA per phase (at rated 5A)
04VA at zero sequence circuit (at rated 5A)01 VA per phase (at rated 1 A)03VA at zero sequence circuit (at rated 1A)
AC voltage circuit 01VA (at rated voltage)DC power supply less than 14W (quiescent)
less than 25W (operation)Binary input circuit 05Winput at 110Vdc
Current differential protection Minimum operate current (ik) 010 to 050pu in 001pu stepsSlope 1 (p1) 10 to 100 in 1 stepsSlope 2 (p2) 50 to 200 in 1 stepskp 100 to 1OOOpu in 001pu stepsVector group compensation (Winding 1 to 3) (dl -d3)
0 to 11 (0 to 330deg in 30deg steps)CT ratio correction (Winding 1 to 3) (kct1-kct3)
0 05 to 200 in 001 stepsInrush setting (2nd harmonic ratio) (k2f) 10 to 50 in 1 stepsOverexcitation setting (5th harmonic ratio) (k5f)
10 to 100 in 1 steps
High-set differential over current protection Over current (kh) 200 to 20OOpu in 001pu steps
Restricted earth fault protectionMinimum operate current 005 to 1OOpu in 001pu stepsSlope 1 (p1) 10Slope 2 (p2) 50 to 100 in 1 stepskp 050 to 2OOpu in 001pu stepsCT ratio correction (kct) 100 to 5000 in 001 steps
Operating time of current differential element
Current differential element typical 30msHigh-set differential over current element typical 20ms
Accuracy of current differential element Current differential protection plusmn5
Reset value less than 105
Time-over current protection High-set over current element Pick up level (OC) 01 to 20Opu in 01pu stepsDelay time (TOC) 000 to 1 000s in 001s stepsOperating time typical 30msInverse time over current elementPick up level (OCI) 010 to 5OOpu in 001pu stepsTime multiplier (TOCI) 005 to 100 in 001 stepsCharacteristic Three IEC standard 60255-3 (Standard
inverse Very inverse Extremely inverse)or a Long-time inverseRefer to Figure 3
Accuracy of inverse time characteristicsStandard Very and Long-time inverse EC 60255-3 class 5Extremely inverse IEC 60255-3 class 75
Accuracy of time over current protection
Pickup value plusmn5
Thermal overload protection Thermal time constant (τ) 05 to 500Os in 01s stepsConstant (k) 010 to 400 in 001 stepsBasic current (IB) 050 to 250pu in 001pu stepsSpecial load current before overload (Ip) 000 to 1OOpu in 001
stepsTime for alarming (TA) 0 to 10 min in 1 min steps
Accuracy of thermal overload protection
Operating time plusmn10
Frequency protectionOver frequency 5000 to 55OOHz in 001 Hz steps (50Hz relay)
6000 to 66OOHz in 001 Hz steps (60Hz relay) Under frequency 4500 to 50OOHz in 001 Hz steps (50Hz relay)
5400 to 60OOHz in 001 Hz steps (60Hz relay)Start time less than 100msUnder voltage blocking 40 to 100V in 1V steps
Accuracy of frequency protection
Pickup valueplusmn
003Hz
Overexcitation protection Pickup voltage 1000 to 120OV in O1 V stepsAlarm level (A) 103 to 130pu in 001pu stepsHigh level (H) 110 to 140pu in 001pu stepsLow level (L) 105 to 130pu in 001pu stepsLT (Definite time) 1 to 600s in 1s stepsHT (Definite time) 1 to 600s in is stepsTVFH (Definite time) 1 to 600s in 1s stepsTVFA (Definite time) 1 to 600s in 1s stepsStart time less than 130ms
TECHNICAL DATATECHNICAL DATATECHNICAL DATATECHNICAL DATA
882019 grt100 toshiba
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10
Accuracy plusmn2 of pickup voltage
Frequency range plusmn2
Disturbance record initiationOver current element 01 to 20OOpu in 001pu steps
Earth fault 005 to 20OOpu in 001pu stepsPre-fault time 03s (fixed)Post-fault time 01 to 3s
Communication port Front communication port (local PC)Connection Point to pointCable type Multi-core (straight)Cable length 15m (max)Connector RS232C 9-way D-type femaleRear communication port (remote PC)Signal level RS485Transmission data rate for RSM system 64kbpsConnection Multidrop mode (max 32 relays)Connector Screw terminalsCable and length Twisted-pair cable max
1200mIsolation 2kVac for 1 min
Transmission data rate for protocol IEC 60870-5-103 96 192kbpsInterface to optional fibre can be provided for IEC60870-5-103Connector type ST type
IRIG-B portConnection BNC connector Cable type 50 ohm coaxial cable
Atmospheric environment Temperature (IEC60255-6)
Operation guarantee -10 to +55
Storage -20 to +70
Humidity (IEC60068-2-3) 4 days at 93 and 40
Binary inputsMinimum operating voltage 70Vdc at 110Vdc125Vdc rating
Contact ratingsTrip contactsMake and carry 5A continuously
30A 290Vdc for 05s (LR=10ms)Break 015A 290Vdc (LR=40ms)
Auxiliary contactsMake and carry 4A continuously
20A 290Vdc for 05s (LR≧5ms)Break 01 A 290Vdc (LR=40ms)
DurabilityLoaded contact 10000 operations minimumUnloaded contact 100000 operations minimum
Mechanical designWeight 12kgCase color Munsell No10YR805Isolation IP51 Installation Flush mounting or rack mounting
Vibration testThe relay withstands vibration in the frequency range of 10 to150Hz with a sweep rate of 1 octave per minute in accordance withIEC Standard 60255-21-1 Class 1
Shock and bump test The relay withstands the shocks and bumps specified in IECStandard 60255-21-2 Class 1
Seismic test
The relay withstands the seismic specified in IEC Standard60255-21-3 Class 1
Dielectric test
The relay withstands 2kV at 50 or 60Hz for 1 minute between allcircuits and the case and between all separate circuits inaccordance with IEC Standard 60255-5 The relay withstands 1 kVat 50 or 60Hz for 1 minute across the open contacts in accordancewith ANSIIEEE C3790
Impulse voltage test
The relay withstands 5kV peak and 1250ps 05J waveformapplied both transversely and between relay terminals and earth inaccordance with IEC Standard 60255-5
1 MHz burst disturbance test
The relay withstands 1 MHz for 2s with 25kHz 25kV attenuatedto half in 3 to 6 cycles between independent circuits andindependent circuits and case earth and 1OkV across terminals of the same circuit in accordance with IEC Standard 60255-22-1Class 3
Radiated electromagnetic field
disturbance test
The relay withstands 25 to 1OOOMHz 10Vm radiated field inaccordance with IEC Standard 60255-22-3 Class 3
Electrostatic discharge test
The relay withstands the following magnitudes of electrostaticdischarge in accordance with IEC Standard 60255-22-2Contact discharge 6kV Class 3Air discharge 15kV Class 4
Fast transient disturbance testThe relay withstands 4kV ア 10 25kHz applied in common mode
for at least 1 minute in accordance with IEC Standard 60255-22-4Class 4
Surge immunity
The relay withstands 4kV peak and 1250ms between all groupsand case earth and 2kV peak and 1250ms between terminals of each group in accordance with IEC Standard 61000-4-5 Level 4
EMC compliance
Conformity to 89336EEC generic standards EN50081-2EN50082-2Product safety conformity to 7323EEC generic safety standardsEN61010-1 EN60950
882019 grt100 toshiba
httpslidepdfcomreaderfullgrt100-toshiba 1324
11
Protocol converter(Option)
Type G1PR1 AC power supply
Voltage 100110VFrequency 50 or 60Hz
Burden less than 20W
Transmission data ratePC side (RS232C) 96 192 384kbpsRelay side (RS485) 64kbps
Size 320(W)X1425(H)X430(D)Weight 7kg
882019 grt100 toshiba
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ORDERING
1 Transformer Protection Relay
2 Protocol Converter (Option)
12
G1PR1
0GRT100
Relay TypeTransformer protection relay GRT100Relay Model
-Model 100 2 three-phase current inputs for 2-windingtransformer
13 N0 configurable output contacts23 N0 configurable output contacts
101 102
-Model 200 3 three-phase current inputs for 2-winding and3-winding transformer
13 N0 configurable output contacts23 N0 configurable output contacts
201 202
CT rating
1A5A
1 2
Frequency50Hz60Hz
1 2
DC power supply rating
1OOV125V220V250V48V54V60V
1 23
Type
Protocol converter G1PR1Model
Not available for external time synchronizationAvailable for external time synchronization (IRIG-B)Available for external time synchronization (IRIG-B and GPS)
01 0203
AC power supply rating
AC 100110V 10
882019 grt100 toshiba
httpslidepdfcomreaderfullgrt100-toshiba 1524
13
882019 grt100 toshiba
httpslidepdfcomreaderfullgrt100-toshiba 1624
14
882019 grt100 toshiba
httpslidepdfcomreaderfullgrt100-toshiba 1724
15
882019 grt100 toshiba
httpslidepdfcomreaderfullgrt100-toshiba 1824
16
882019 grt100 toshiba
httpslidepdfcomreaderfullgrt100-toshiba 1924
17
882019 grt100 toshiba
httpslidepdfcomreaderfullgrt100-toshiba 2024
18
882019 grt100 toshiba
httpslidepdfcomreaderfullgrt100-toshiba 2124
MEMO
19
GRT100
882019 grt100 toshiba
httpslidepdfcomreaderfullgrt100-toshiba 2224
MEMO
20
882019 grt100 toshiba
httpslidepdfcomreaderfullgrt100-toshiba 2324
882019 grt100 toshiba
httpslidepdfcomreaderfullgrt100-toshiba 2424
TOSHIBA CORPORATIONPOWER SYSTEMS amp SERVICES COMPANYUTILITY POWER SYSTEMS ENGINEERING DEPT 1-1
SHIBAURA1-CHOUME MINATO-KU TOKYO
105-800
1 JapanPHONE 03-3457-3631
FACSIMILE 03-54449196
6335-1 rsquo01-1 C15
882019 grt100 toshiba
httpslidepdfcomreaderfullgrt100-toshiba 1224
10
Accuracy plusmn2 of pickup voltage
Frequency range plusmn2
Disturbance record initiationOver current element 01 to 20OOpu in 001pu steps
Earth fault 005 to 20OOpu in 001pu stepsPre-fault time 03s (fixed)Post-fault time 01 to 3s
Communication port Front communication port (local PC)Connection Point to pointCable type Multi-core (straight)Cable length 15m (max)Connector RS232C 9-way D-type femaleRear communication port (remote PC)Signal level RS485Transmission data rate for RSM system 64kbpsConnection Multidrop mode (max 32 relays)Connector Screw terminalsCable and length Twisted-pair cable max
1200mIsolation 2kVac for 1 min
Transmission data rate for protocol IEC 60870-5-103 96 192kbpsInterface to optional fibre can be provided for IEC60870-5-103Connector type ST type
IRIG-B portConnection BNC connector Cable type 50 ohm coaxial cable
Atmospheric environment Temperature (IEC60255-6)
Operation guarantee -10 to +55
Storage -20 to +70
Humidity (IEC60068-2-3) 4 days at 93 and 40
Binary inputsMinimum operating voltage 70Vdc at 110Vdc125Vdc rating
Contact ratingsTrip contactsMake and carry 5A continuously
30A 290Vdc for 05s (LR=10ms)Break 015A 290Vdc (LR=40ms)
Auxiliary contactsMake and carry 4A continuously
20A 290Vdc for 05s (LR≧5ms)Break 01 A 290Vdc (LR=40ms)
DurabilityLoaded contact 10000 operations minimumUnloaded contact 100000 operations minimum
Mechanical designWeight 12kgCase color Munsell No10YR805Isolation IP51 Installation Flush mounting or rack mounting
Vibration testThe relay withstands vibration in the frequency range of 10 to150Hz with a sweep rate of 1 octave per minute in accordance withIEC Standard 60255-21-1 Class 1
Shock and bump test The relay withstands the shocks and bumps specified in IECStandard 60255-21-2 Class 1
Seismic test
The relay withstands the seismic specified in IEC Standard60255-21-3 Class 1
Dielectric test
The relay withstands 2kV at 50 or 60Hz for 1 minute between allcircuits and the case and between all separate circuits inaccordance with IEC Standard 60255-5 The relay withstands 1 kVat 50 or 60Hz for 1 minute across the open contacts in accordancewith ANSIIEEE C3790
Impulse voltage test
The relay withstands 5kV peak and 1250ps 05J waveformapplied both transversely and between relay terminals and earth inaccordance with IEC Standard 60255-5
1 MHz burst disturbance test
The relay withstands 1 MHz for 2s with 25kHz 25kV attenuatedto half in 3 to 6 cycles between independent circuits andindependent circuits and case earth and 1OkV across terminals of the same circuit in accordance with IEC Standard 60255-22-1Class 3
Radiated electromagnetic field
disturbance test
The relay withstands 25 to 1OOOMHz 10Vm radiated field inaccordance with IEC Standard 60255-22-3 Class 3
Electrostatic discharge test
The relay withstands the following magnitudes of electrostaticdischarge in accordance with IEC Standard 60255-22-2Contact discharge 6kV Class 3Air discharge 15kV Class 4
Fast transient disturbance testThe relay withstands 4kV ア 10 25kHz applied in common mode
for at least 1 minute in accordance with IEC Standard 60255-22-4Class 4
Surge immunity
The relay withstands 4kV peak and 1250ms between all groupsand case earth and 2kV peak and 1250ms between terminals of each group in accordance with IEC Standard 61000-4-5 Level 4
EMC compliance
Conformity to 89336EEC generic standards EN50081-2EN50082-2Product safety conformity to 7323EEC generic safety standardsEN61010-1 EN60950
882019 grt100 toshiba
httpslidepdfcomreaderfullgrt100-toshiba 1324
11
Protocol converter(Option)
Type G1PR1 AC power supply
Voltage 100110VFrequency 50 or 60Hz
Burden less than 20W
Transmission data ratePC side (RS232C) 96 192 384kbpsRelay side (RS485) 64kbps
Size 320(W)X1425(H)X430(D)Weight 7kg
882019 grt100 toshiba
httpslidepdfcomreaderfullgrt100-toshiba 1424
ORDERING
1 Transformer Protection Relay
2 Protocol Converter (Option)
12
G1PR1
0GRT100
Relay TypeTransformer protection relay GRT100Relay Model
-Model 100 2 three-phase current inputs for 2-windingtransformer
13 N0 configurable output contacts23 N0 configurable output contacts
101 102
-Model 200 3 three-phase current inputs for 2-winding and3-winding transformer
13 N0 configurable output contacts23 N0 configurable output contacts
201 202
CT rating
1A5A
1 2
Frequency50Hz60Hz
1 2
DC power supply rating
1OOV125V220V250V48V54V60V
1 23
Type
Protocol converter G1PR1Model
Not available for external time synchronizationAvailable for external time synchronization (IRIG-B)Available for external time synchronization (IRIG-B and GPS)
01 0203
AC power supply rating
AC 100110V 10
882019 grt100 toshiba
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13
882019 grt100 toshiba
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14
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15
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16
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17
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18
882019 grt100 toshiba
httpslidepdfcomreaderfullgrt100-toshiba 2124
MEMO
19
GRT100
882019 grt100 toshiba
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MEMO
20
882019 grt100 toshiba
httpslidepdfcomreaderfullgrt100-toshiba 2324
882019 grt100 toshiba
httpslidepdfcomreaderfullgrt100-toshiba 2424
TOSHIBA CORPORATIONPOWER SYSTEMS amp SERVICES COMPANYUTILITY POWER SYSTEMS ENGINEERING DEPT 1-1
SHIBAURA1-CHOUME MINATO-KU TOKYO
105-800
1 JapanPHONE 03-3457-3631
FACSIMILE 03-54449196
6335-1 rsquo01-1 C15
882019 grt100 toshiba
httpslidepdfcomreaderfullgrt100-toshiba 1324
11
Protocol converter(Option)
Type G1PR1 AC power supply
Voltage 100110VFrequency 50 or 60Hz
Burden less than 20W
Transmission data ratePC side (RS232C) 96 192 384kbpsRelay side (RS485) 64kbps
Size 320(W)X1425(H)X430(D)Weight 7kg
882019 grt100 toshiba
httpslidepdfcomreaderfullgrt100-toshiba 1424
ORDERING
1 Transformer Protection Relay
2 Protocol Converter (Option)
12
G1PR1
0GRT100
Relay TypeTransformer protection relay GRT100Relay Model
-Model 100 2 three-phase current inputs for 2-windingtransformer
13 N0 configurable output contacts23 N0 configurable output contacts
101 102
-Model 200 3 three-phase current inputs for 2-winding and3-winding transformer
13 N0 configurable output contacts23 N0 configurable output contacts
201 202
CT rating
1A5A
1 2
Frequency50Hz60Hz
1 2
DC power supply rating
1OOV125V220V250V48V54V60V
1 23
Type
Protocol converter G1PR1Model
Not available for external time synchronizationAvailable for external time synchronization (IRIG-B)Available for external time synchronization (IRIG-B and GPS)
01 0203
AC power supply rating
AC 100110V 10
882019 grt100 toshiba
httpslidepdfcomreaderfullgrt100-toshiba 1524
13
882019 grt100 toshiba
httpslidepdfcomreaderfullgrt100-toshiba 1624
14
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15
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16
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17
882019 grt100 toshiba
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18
882019 grt100 toshiba
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MEMO
19
GRT100
882019 grt100 toshiba
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MEMO
20
882019 grt100 toshiba
httpslidepdfcomreaderfullgrt100-toshiba 2324
882019 grt100 toshiba
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TOSHIBA CORPORATIONPOWER SYSTEMS amp SERVICES COMPANYUTILITY POWER SYSTEMS ENGINEERING DEPT 1-1
SHIBAURA1-CHOUME MINATO-KU TOKYO
105-800
1 JapanPHONE 03-3457-3631
FACSIMILE 03-54449196
6335-1 rsquo01-1 C15
882019 grt100 toshiba
httpslidepdfcomreaderfullgrt100-toshiba 1424
ORDERING
1 Transformer Protection Relay
2 Protocol Converter (Option)
12
G1PR1
0GRT100
Relay TypeTransformer protection relay GRT100Relay Model
-Model 100 2 three-phase current inputs for 2-windingtransformer
13 N0 configurable output contacts23 N0 configurable output contacts
101 102
-Model 200 3 three-phase current inputs for 2-winding and3-winding transformer
13 N0 configurable output contacts23 N0 configurable output contacts
201 202
CT rating
1A5A
1 2
Frequency50Hz60Hz
1 2
DC power supply rating
1OOV125V220V250V48V54V60V
1 23
Type
Protocol converter G1PR1Model
Not available for external time synchronizationAvailable for external time synchronization (IRIG-B)Available for external time synchronization (IRIG-B and GPS)
01 0203
AC power supply rating
AC 100110V 10
882019 grt100 toshiba
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13
882019 grt100 toshiba
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14
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15
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16
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17
882019 grt100 toshiba
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18
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httpslidepdfcomreaderfullgrt100-toshiba 2124
MEMO
19
GRT100
882019 grt100 toshiba
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MEMO
20
882019 grt100 toshiba
httpslidepdfcomreaderfullgrt100-toshiba 2324
882019 grt100 toshiba
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TOSHIBA CORPORATIONPOWER SYSTEMS amp SERVICES COMPANYUTILITY POWER SYSTEMS ENGINEERING DEPT 1-1
SHIBAURA1-CHOUME MINATO-KU TOKYO
105-800
1 JapanPHONE 03-3457-3631
FACSIMILE 03-54449196
6335-1 rsquo01-1 C15
882019 grt100 toshiba
httpslidepdfcomreaderfullgrt100-toshiba 1524
13
882019 grt100 toshiba
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MEMO
19
GRT100
882019 grt100 toshiba
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MEMO
20
882019 grt100 toshiba
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882019 grt100 toshiba
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TOSHIBA CORPORATIONPOWER SYSTEMS amp SERVICES COMPANYUTILITY POWER SYSTEMS ENGINEERING DEPT 1-1
SHIBAURA1-CHOUME MINATO-KU TOKYO
105-800
1 JapanPHONE 03-3457-3631
FACSIMILE 03-54449196
6335-1 rsquo01-1 C15
882019 grt100 toshiba
httpslidepdfcomreaderfullgrt100-toshiba 1624
14
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17
882019 grt100 toshiba
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MEMO
19
GRT100
882019 grt100 toshiba
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MEMO
20
882019 grt100 toshiba
httpslidepdfcomreaderfullgrt100-toshiba 2324
882019 grt100 toshiba
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TOSHIBA CORPORATIONPOWER SYSTEMS amp SERVICES COMPANYUTILITY POWER SYSTEMS ENGINEERING DEPT 1-1
SHIBAURA1-CHOUME MINATO-KU TOKYO
105-800
1 JapanPHONE 03-3457-3631
FACSIMILE 03-54449196
6335-1 rsquo01-1 C15
882019 grt100 toshiba
httpslidepdfcomreaderfullgrt100-toshiba 1724
15
882019 grt100 toshiba
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882019 grt100 toshiba
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17
882019 grt100 toshiba
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18
882019 grt100 toshiba
httpslidepdfcomreaderfullgrt100-toshiba 2124
MEMO
19
GRT100
882019 grt100 toshiba
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MEMO
20
882019 grt100 toshiba
httpslidepdfcomreaderfullgrt100-toshiba 2324
882019 grt100 toshiba
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TOSHIBA CORPORATIONPOWER SYSTEMS amp SERVICES COMPANYUTILITY POWER SYSTEMS ENGINEERING DEPT 1-1
SHIBAURA1-CHOUME MINATO-KU TOKYO
105-800
1 JapanPHONE 03-3457-3631
FACSIMILE 03-54449196
6335-1 rsquo01-1 C15
882019 grt100 toshiba
httpslidepdfcomreaderfullgrt100-toshiba 1824
16
882019 grt100 toshiba
httpslidepdfcomreaderfullgrt100-toshiba 1924
17
882019 grt100 toshiba
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18
882019 grt100 toshiba
httpslidepdfcomreaderfullgrt100-toshiba 2124
MEMO
19
GRT100
882019 grt100 toshiba
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MEMO
20
882019 grt100 toshiba
httpslidepdfcomreaderfullgrt100-toshiba 2324
882019 grt100 toshiba
httpslidepdfcomreaderfullgrt100-toshiba 2424
TOSHIBA CORPORATIONPOWER SYSTEMS amp SERVICES COMPANYUTILITY POWER SYSTEMS ENGINEERING DEPT 1-1
SHIBAURA1-CHOUME MINATO-KU TOKYO
105-800
1 JapanPHONE 03-3457-3631
FACSIMILE 03-54449196
6335-1 rsquo01-1 C15
882019 grt100 toshiba
httpslidepdfcomreaderfullgrt100-toshiba 1924
17
882019 grt100 toshiba
httpslidepdfcomreaderfullgrt100-toshiba 2024
18
882019 grt100 toshiba
httpslidepdfcomreaderfullgrt100-toshiba 2124
MEMO
19
GRT100
882019 grt100 toshiba
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MEMO
20
882019 grt100 toshiba
httpslidepdfcomreaderfullgrt100-toshiba 2324
882019 grt100 toshiba
httpslidepdfcomreaderfullgrt100-toshiba 2424
TOSHIBA CORPORATIONPOWER SYSTEMS amp SERVICES COMPANYUTILITY POWER SYSTEMS ENGINEERING DEPT 1-1
SHIBAURA1-CHOUME MINATO-KU TOKYO
105-800
1 JapanPHONE 03-3457-3631
FACSIMILE 03-54449196
6335-1 rsquo01-1 C15
882019 grt100 toshiba
httpslidepdfcomreaderfullgrt100-toshiba 2024
18
882019 grt100 toshiba
httpslidepdfcomreaderfullgrt100-toshiba 2124
MEMO
19
GRT100
882019 grt100 toshiba
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MEMO
20
882019 grt100 toshiba
httpslidepdfcomreaderfullgrt100-toshiba 2324
882019 grt100 toshiba
httpslidepdfcomreaderfullgrt100-toshiba 2424
TOSHIBA CORPORATIONPOWER SYSTEMS amp SERVICES COMPANYUTILITY POWER SYSTEMS ENGINEERING DEPT 1-1
SHIBAURA1-CHOUME MINATO-KU TOKYO
105-800
1 JapanPHONE 03-3457-3631
FACSIMILE 03-54449196
6335-1 rsquo01-1 C15
882019 grt100 toshiba
httpslidepdfcomreaderfullgrt100-toshiba 2124
MEMO
19
GRT100
882019 grt100 toshiba
httpslidepdfcomreaderfullgrt100-toshiba 2224
MEMO
20
882019 grt100 toshiba
httpslidepdfcomreaderfullgrt100-toshiba 2324
882019 grt100 toshiba
httpslidepdfcomreaderfullgrt100-toshiba 2424
TOSHIBA CORPORATIONPOWER SYSTEMS amp SERVICES COMPANYUTILITY POWER SYSTEMS ENGINEERING DEPT 1-1
SHIBAURA1-CHOUME MINATO-KU TOKYO
105-800
1 JapanPHONE 03-3457-3631
FACSIMILE 03-54449196
6335-1 rsquo01-1 C15
882019 grt100 toshiba
httpslidepdfcomreaderfullgrt100-toshiba 2224
MEMO
20
882019 grt100 toshiba
httpslidepdfcomreaderfullgrt100-toshiba 2324
882019 grt100 toshiba
httpslidepdfcomreaderfullgrt100-toshiba 2424
TOSHIBA CORPORATIONPOWER SYSTEMS amp SERVICES COMPANYUTILITY POWER SYSTEMS ENGINEERING DEPT 1-1
SHIBAURA1-CHOUME MINATO-KU TOKYO
105-800
1 JapanPHONE 03-3457-3631
FACSIMILE 03-54449196
6335-1 rsquo01-1 C15
882019 grt100 toshiba
httpslidepdfcomreaderfullgrt100-toshiba 2324
882019 grt100 toshiba
httpslidepdfcomreaderfullgrt100-toshiba 2424
TOSHIBA CORPORATIONPOWER SYSTEMS amp SERVICES COMPANYUTILITY POWER SYSTEMS ENGINEERING DEPT 1-1
SHIBAURA1-CHOUME MINATO-KU TOKYO
105-800
1 JapanPHONE 03-3457-3631
FACSIMILE 03-54449196
6335-1 rsquo01-1 C15
882019 grt100 toshiba
httpslidepdfcomreaderfullgrt100-toshiba 2424
TOSHIBA CORPORATIONPOWER SYSTEMS amp SERVICES COMPANYUTILITY POWER SYSTEMS ENGINEERING DEPT 1-1
SHIBAURA1-CHOUME MINATO-KU TOKYO
105-800
1 JapanPHONE 03-3457-3631
FACSIMILE 03-54449196
6335-1 rsquo01-1 C15