Catalogue Sepam 20_ 40

Sepam Merlin GerinSeries 20Series 40

Electrical network protection

Catalogue

2003

1

Contents

Presentation 2More solutions 2Flexible architecture 5User-machine interface 6

Selection table 8Sepam series 20 8Sepam series 40 9

Metering 10Description 10General settings and characteristics 11

Protection 12Description 12Setting ranges 14

Connection diagrams 16Sepam series 20 16Sepam series 40 17Phase current inputs 18Residual current input 19Sepam series 20 voltage inputs 20Sepam series 40 voltage inputs 21

Control and monitoring 22Description 22Logic inputs and outputs 23Logic input / output assignment for Sepam series 20 applications 24Logic input / output assignment for Sepam series 40 applications 25Annunciation 26Customization 27

Communication 28Description and characteristics 28

Optional remote modules 30Description 30Connections 31

Sensors 32LPCT type current sensors 32Core balance CTs 33

Characteristics 34Size and weight 34Electrical characteristics 36Environmental characteristics 37

Order form

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Presentation More solutions

The Sepam series 20 and Sepam series 40 families of protection and metering units are designed for the operation of machines and electrical distribution networks of industrial installations and utility substations for all levels of voltage.They consist of complete, simple and reliable solutions, suited to the following applications:b protection of substations (incomers and feeders)b protection of transformersb protection of motorsb protection of generatorsb protection of busbars.

Sepam series 20Suitable for common applications, Sepam series 20 offers simple solutions based on current or voltage metering.

b protection of substation incomers and feeders against phase-to-phase and phase-to-earth short-circuitsv 16 IDMT tripping curvesv adjustable timer hold to detect recurrent faultsv switching of groups of settings to adapt to changes in the network configurationb protection of overhead lines with built-in recloser functionb protection of transformers against overloads, with ambient temperature-compensated RMS thermal overload protection with 2 groups of settings for different ventilation operating rates b protection of motorsv against overloads, with ambient temperature-compensated RMS thermal overload protection with a cold tripping curve that can be adjusted to fit motor characteristicsv against internal faults and load-related faultsv with motor starting condition monitoring and machine operation assistance.

The Sepam series 20 B21 and B22 voltage units are suitable for the following situations:b monitoring of network voltage and frequencyb loss of mains detection by rate of change of frequency protection for installations with local power generation.

Sepam series 40

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1101

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Sepam series 40, with its current and voltage metering capabilities, offers high-performing solutions for more demanding applications.

Sepam series 40 units perform the following funcitons in addition to those performed by Sepam series 20:b protection of closed ring networks or networks with parallel incomers, by directional protectionb directional earth fault protection suitable for all earthing systems: impedant, isolated or compensated neutralb protection of networks with variable configurations requiring the switching of groups of settings and logic discriminationb all the necessary electrical measurements: phase and residual currents, phase-to-neutral, phase-to-phase and residual voltage, frequency, power and energy, ...b comprehensive network diagnosis assistance: 20 seconds of disturbance recording, detailed history of the last 200 alarms, storage of the last 5 tripping contextsb adaptation of control functions by a logical equation editorb customization of alarm messages to fit each application, and/or in the user’s language.

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Sepam selection guideSelection Series 20 Series 40criteria

Measurements I U U I and U I and U I and U

Specific protection functions available

Loss of mains (ROCOF)

Directional earth fault

Directional earth fault and phase overcurrent

Applications TypeSubstation S20 S40 S41 S42Transformer T20 T40 T42Motor M20 M41Generator G40Busbar B21 B22

Example: For motor protection and current and voltage measurements, your solution is the M41 type Sepam.

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Presentation More solutionsM

T11

026

More simplicitySimple to installb no constraints for integration in cubicles due to the compact size of the base units and remote installation of optional modules b universal auxiliary power supply.

Simple to commissionb all the functions are ready to useb user-friendly, powerful PC setting software to utilize all the possibilities offered by Sepam.

Simple to operateWith the advanced UMI, all local operations are made easier by a clear, complete presentation of all the required information in your language.

Simple to maintain b digital unit self-diagnosis and watchdogb switchgear diagnosis assistance functions to assess equipment condition and schedule preventive maintenance operations:v cumulative breaking currentv breaking device operating and charging time.

Example: Advanced UMI customized for Chinese users.

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Example: Standard advanced UMI in English.

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More communicationModbus communicationAll the data needed for centralized management of your electrical network are available with the communication option based on the open, international Modbus protocol:b measurement and diagnosis valuesb remote indication and time-tagging of eventsb remote control of the installationb remote setting of protection functionsb reading of disturbance recording files.

Ethernet connection and WebserverSepam may be connected to an Ethernet high speed network by means of a Modbus-RS 485/Modbus - Ethernet TCP/IP communication interface.This interface allows:b integration of Sepam in a multi-master architecture on Ethernet networksb consultation of Web pages of data transmitted by Sepam via an Internet/Intranet browser.

Other protocolsSepam may be connected to communication network based on protocols other than Modbus by using a gateway / protocol converter.In particular, a Modbus / DNP3 converter has been qualified for the connection of Sepam to DNP3 network.Please consult us for more informations.

PowerLogic SystemSepam fits naturally into PowerLogic System power management systems.

Supervision of an electrical network equipped with Sepam by means of PowerLogic System SMS software.

PE

5002

7P

E50

028

EGX200 Ethernet gateway.

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Presentation More solutions

More modularitySepam series 20 and Sepam series 40 are available with 2 User-Machine Interface (UMI) levels:b advanced UMI, with keypad and graphic LCD displayv to provide all the data required for local operation of the installation: measurements, diagnosis information, alarms, etc.v to set Sepam parameters and protection functionsv to be understood by all, the screens can be displayed in the user’s language.The advanced UMI may be part of the base unit or installed as a remote unit in the most convenient location for the user.b basic UMI, with signal lampsv for remotely operated installations, via the communication link, with no continuous need for local operation; a PC equipped with the SFT2841 software tool may be used for occasional operation.

In order to adapt to as many situations as possible and allow for subsequent upgrading of the installation, Sepam may be functionally enhanced at any time by the addition of optional modules. b logic input/output module with parameterizable program logicb communication moduleb temperature sensor moduleb analog output module.

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Sepam with basic UMI. Sepam with advanced UMI.

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Sepam with remote advanced UMI.

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Presentation Flexible architectureP

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1 Base unit, with different User-Machine Interface (UMI) levels:b basic UMIb advanced UMI with fixed or remote graphic LCD display.

2 Logic inputs/outputs module.

3 Modbus communication network connection module.

4 Low level analog output module.

5 Temperature sensor acquisition module for transformer, motor or generator.

6 Software tools:b Sepam parameter and protection setting and program logic customizationb display of disturbance recording files.

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Presentation User-machine interface

Sepam has 2 levels of UMI (user-machine interface) suited to every operating requirement.

Basic UMIThis UMI offers an economical solution suited to installations that do not require local operation (managed by a remote monitoring and control system) or to replace electromechanical or analog electronic protections units with no additional operating needs.The basic UMI includes:b 2 signal lamps indicating Sepam operating status:v green "on" indicator: device onv red "wrench" indicator: device unavailable (initialization phase or detection of an internal failure)b 9 parameterizable yellow signal lamps equipped with a standard label (1)

b "reset" button for clearing faults and resettingb 1 connection port for the RS 232 link with the PC; the port is protected by a sliding cover.

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Basic UMI with standard signal lamp assignment.

Advanced UMI

DE

5059

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This UMI is an optimal solution for local operation, which is made easier by its legibility, content and access to the different data.In addition to the basic UMI functions, this version provides:b a "graphic" LCD display with automatic contrast adjustment and user-triggered backlighting. It is used to display measurements, parameter/protection settings and alarm and operating messages. Number of lines, size of characters and symbols according to screens and language versions.b a 9-key keypad with two operating modes:

White keys for current operation:

display of measurements.

display of switchgear and network diagnosis data.

display of alarm messages.

resetting.

acknowledgment and clearing of alarms.

Blue keys for parameter and protection setting:

access to protection settings.

access to Sepam parameter settings (2).

used to enter the 2 passwords required to change protection and parameter settings.The " ↵, r, " keys ( , , ) are used to navigate in the menus, and to scroll and accept the values displayed.

"Lamp test" key :switching-on sequence of all the signal lamps.

Remote advanced UMIThe advanced UMI functions are also available in a remote module that is connected to a Sepam with a basic UMI (connection by prefabricated cord of different lengths).The module is installed on the front panel of the cubicle in the most appropriate operating location.

(1) This removable label may be replaced by a customized label produced using the SFT2841 software tool.(2) For parameter setting of the program logic, the expert UMI must be used.

Advanced UMI with standard signal lamp assignment.

0 off I on TripextI >> 51I>51on Io >> 51NIo > 51N

reset

1

2

3

456789

reset

I onextIo >> 51NIo > 51NI> > 51I>51on 0 off

clear

trip

I1 = 162A RMS

I2 = 161A RMS

I3 = 163A RMS

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2

3

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7

8

9

r

4 5 6

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Presentation User-machine interface

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Expert UMIThis UMI is available as a complement to the basic or advanced UMI on the screen of a PC equipped with the SFT2841 software tool and connected to the RS 232 link on the front panel of the Sepam (operating in a Windows environment). All the data used for the same task are grouped together in the same screen to facilitate operation. Menus and icons are used for fast, direct access to the required information.

Current operating mode This UMI is the solution suited to occasional local operation for demanding personnel who require fast access to all the information. b display of all metering and operating datab display of alarm messages with the time of appearanceb display of diagnosis data such as:v tripping currentv number of switchgear operations and cumulative breaking currentb display of all protection and parameter settings madeb display of the logic status of inputs, outputs and signal lamps.

Parameter / protection setting mode

Used for the display and setting of all the parameters; input data may be prepared ahead of time and transferred into the corresponding Sepam units in a single operation (downloading function).Main functions performed by SFT2841:b changing of passwordsb entry of general settings (ratings, integration period, …) protected by a parameter setting passwordb entry of protection settings in the same page, protected by a setting passwordb modification of program logic assignmentsb enabling/disabling of functionsb saving of files.

Saving - printing of reportsb protection and parameter setting data may be savedb reports may also be printed, by exporting the data into a text file.This UMI may also be used to recover disturbance recording files and display them using the SFT2826 software tool.

Operating assistanceAccess from all the screens to a help section which contains all the technical data required for Sepam installation and use.

SFT2841 kitThe expert UMI software tool comes in a kit which contains:b 1 CD-ROM with:v SFT2841 softwarev SFT2826 software for disturbance recording file displayb 1 PC/Sepam serial link cord.

Minimum configuration required

SFT2841: measurement screen.

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SFT2841: protection function 50/51 setting screen.

Processor PC compatible, Pentium 133 MHz

Operating systems Microsoft Windows 95/98/NT4.0/2000/XPRAM 64 MB (32 MB for Windows 95/98)Space on disk 64 MB

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Selection table Sepam series 20

Functions Type of SepamSubstation Transformer Motor Busbar

Protection ANSI code S20 T20 M20 B21 (3) B22Phase overcurrent 50/51 4 4 4

Earth fault, sensitive earth fault

50N/51N50G/51G

4 4 4

Negative sequence / unbalance 46 1 1 1Thermal overload 49RMS 2 2Phase undercurrent 37 1

Locked rotor, excessive starting time 48/51LR/14 1Starts per hour 66 1Positive sequence undervoltage 27D/47 2 2

Remanent undervoltage 27R 1 1Phase-to-phase undervoltage 27 2 2Phase-to-neutral undervoltage 27S 1 1

Phase-to-phase overvoltage 59 2 2Neutral voltage displacement 59N 2 2Overfrequency 81H 1 1

Underfrequency 81L 2 2Rate of change of frequency 81R 1Recloser (4 cycles) 79 vThermostat / Buchholz 26/63 vTemperature monitoring (8 RTDs, 2 set points per RTD) 38/49T v vMetering

Phase current I1, I2, I3 RMS, residual current I0 b b bAverage current I1, I2, I3, peak demand current IM1, IM2, IM3 b b bVoltage U21, U32, U13, V1, V2, V3, residual voltage V0 b bPositive sequence voltage Vd / rotation direction b bFrequency b bTemperature v vNetwork and machine diagnosis

Tripping current TripI1, TripI2, TripI3, TripI0 b b bUnbalance ratio / negative sequence current Ii b b bDisturbance recording b b b b bThermal capacity used b bRemaining operating time before overload tripping b bWaiting time after overload tripping b bRunning hours counter / operating time b bStarting current and time bStart inhibit time delay, number of starts before inhibition bSwitchgear diagnosis

Cumulative breaking current b b bTrip circuit supervision v v v v vNumber of operations, operating time, charging time v v vControl and monitoring ANSI code

Circuit breaker / contactor control (1) 94/69 v v v v vLatching / acknowledgment 86 b b b b bLogic discrimination 68 v v vSwitching of groups of settings b (2) b (2) b (2)

Additional modules8 temperature sensor inputs - MET148-2 module v v1 low level analog output - MSA141 module v v v v vLogic inputs/outputs - MES114/MES114E/MES114F (10I/4O) module v v v v vCommunication interface - ACE949-2 (2-wire RS 485),ACE959 (4-wire RS 485) or ACE 937 (fiber optic)

v v v v v

b standard, v according to parameter setting an MES114/MES114E/MES114F or MET148-2 input/output module options.(1) For shunt trip unit or undervoltage trip unit.(2) Exclusive choice between logic discrimination and switching from one 2-relay group of settings to another 2-relay group.(3) Performs B20 type functions.

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Selection table Sepam series 40

Functions Type of Sepam

Substation Transformer Motor Generator

Protection ANSI code S40 S41 S42 T40 T42 M41 G40

Phase overcurrent 50/51 4 4 4 4 4 4 4

Voltage-restrained phase overcurrent 50V/51V 1

Earth fault, sensitive earth fault

50N/51N50G/51G

4 4 4 4 4 4 4

Breaker failure 50BF 1 1 1 1 1 1 1

Negative sequence / unbalance 46 2 2 2 2 2 2 2

Directional phase overcurrent 67 2 2

Directional earth fault 67N/67NC 2 2 2 2

Directional active overpower 32P 1 1 1 1

Directional reactive overpower 32Q/40 1 1

Thermal overload 49RMS 2 2 2 2

Phase undercurrent 37 1

Excessive starting time, locked rotor 48/51LR/14 1

Starts per hour 66 1

Positive sequence undervoltage 27D 2

Remanent undervoltage 27R 1

Undervoltage (3) 27/27S 2 2 2 2 2 2 2

Overvoltage (3) 59 2 2 2 2 2 2 2

Neutral voltage displacement 59N 2 2 2 2 2 2 2

Negative sequence overvoltage 47 1 1 1 1 1 1 1

Overfrequency 81H 2 2 2 2 2 2 2

Underfrequency 81L 4 4 4 4 4 4 4

Recloser (4 cycles) 79 v v v

Temperature monitoring (8 or 16 RTDs, 2 set points per RTD) 38/49T v v v v

Thermostat / Buchholz 26/63 v v

MeteringPhase current I1, I2, I3 RMS, residual current I0 b b b b b b bAverage current I1, I2, I3, peak demand current IM1, IM2, IM3 b b b b b b bVoltage U21, U32, U13, V1, V2, V3, residual voltage V0 b b b b b b bPositive sequence voltage Vd / rotation direction, neg. seq. voltage Vi b b b b b b b

Frequency b b b b b b bActive, reactive and apparent power P, Q, SPeak demand power PM, QMPower factor

b b b b b b b

Calculated active and reactive energy (±W.h, ±var.h) b b b b b b bActive and reactive energy by pulse counting (±W.h, ±var.h) v v v v v v vTemperature v v v vNetwork and machine diagnosis

Tripping context b b b b b b bTripping current TripI1, TripI2, TripI3, TripI0 b b b b b b bUnbalance ratio / negative sequence current Ii b b b b b b bPhase displacement ϕ0, ϕ1, ϕ2, ϕ3 b b b b b b bDisturbance recording b b b b b b bThermal capacity used b b b b

Remaining operating time before overload tripping b b b bWaiting time after overload tripping b b b bRunning hours counter / operating time b b b bStarting current and time bStart inhibit time delay, number of starts before inhibition bSwitchgear diagnosis

Cumulative breaking current b b b b b b bTrip circuit supervision v v v v v v vNumber of operations, operating time, charging time v v v v v v vCT/VT supervision 60FL b b b b b b bControl and monitoring ANSI code

Circuit breaker / contactor control (1) 94/69 b b b b b b b

Latching / acknowledgment 86 b b b b b b b

Logic discrimination 68 v v v v v v v

Switching of groups of settings b b b b b b b

Logic equation editor b b b b b b bAdditional modules

8 temperature sensor inputs - MET148-2 module (2) v v v v1 low level analog output - MSA141 module v v v v v v vLogic inputs / outputs - MES114/MES114E/MES114F (10I/4O) module v v v v v v v

Communication interface - ACE949-2 (2-wire RS 485),ACE959 (4-wire RS 485) or ACE 937 (fiber optic) v v v v v v v

b standard, v according to parameter setting an MES114/MES114E/MES114F or MET148-2 optional input/output modules (1) For shunt trip or undervoltage trip unit. (2) 2 modules possible.(3) Exclusive choice, phase-to-neutral voltage or phase-to-phase voltage for each of the 2 units.

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Metering Description

Metering functionsThe values are displayed as primary values with the related units: A, V, Hz,°C,°F, W, …

Currentb RMS current for each of the 3 phases in the circuit, taking into account harmonics up to at least number 13b residual current.

Average current and peak demand currentb average current on each of the 3 phasesb greatest average current on each of the 3 phases (peak demand current).The peak demand currents give the current consumed at the time of peak loads.The average current is calculated over a period that may be parameterized from 5 to 60 mn, and may be reset to zero.

Voltageb phase-to-neutral voltages V1, V2, V3b phase-to-phase voltages U21, U32, U13b positive sequence voltage Vdb residual voltage V0b negative sequence voltage Vi.

Frequency

PowerActive, reactive and apparent power, power factor (cos ϕ)

Peak demand powerGreatest value of active and reactive power absorbed, over the same period as peak demand currents, with the possibility of resetting to zero.

Energy b 4 accumulated energy counters, calculated according to the currents and voltages measured: active and reactive energy, in each flow directionb 1 to 4 additional accumulated energy counters for the acquisition of active or reactive energy pulses delivered by external counters.

Temperature Measurement of the temperature of each sensor.

Network diagnosis assistance functionsTripping context

Storage of the tripping currents and I0, ld, U21, U32, U13, V0, Vi, Vd, F, P and Q values at the time of the detection of the fault. The values for the last five trips are stored.

Tripping currentStorage of the 3 phase currents and earth current at the time the Sepam gave the last tripping order, so as to find out the fault current (fault analysis).The values are stored until the next trip.

Negative sequence / unbalanceRatio of negative sequence phase current, characteristic of an unbalanced power supply of the equipment to be protected.

Phase displacementb variance in phase ϕ1, ϕ2, ϕ3 between phase currents l1, l2, l3 and voltages V1, V2, V3b variance in phase ϕ0 between residual current and residual voltage.

Disturbance recordingRecording of sampled values of analog measurement signals and logic states. By parameter setting, it is possible to choose:b the events that will trigger a recordb the recording period prior to the occurrence of the eventb the number and duration of records (series 40 only).

Characteristics Series 20 Series 40Number of records in COMTRADE format

2 Adjustable from 1 to 19

Total duration of a record 86 periods (1.72 s at 50 Hz, 1.43 s at 60 Hz)

Adjustable from 1 s to 10 sThe total of all the records plus one must not be more than 20 s at 50 Hz and 16 s at 60 Hz

Number of points per period 12 12

Duration of recording prior to occurrence of the event

Adjustable from 0 to 85 periods

Adjustable from 0 to 99 periods

Recorded data Currents or voltages,logic inputs, pick up and logic output O1

Currents and voltages, logic inputs, pick up, logic outputs (O1 to O4)

Machine operation assistance functionsThermal capacity usedTemperature build-up related to the load.It is displayed as a percentage of the rated thermal capacity.

Remaining operating time before overload trippingIndicates the time remaining before tripping by the thermal overload protection function.

Waiting time after overload trippingIndicates the time remaining before starting is allowed according to inhibition by the thermal protection function.

Starting current and time / motor overloadMeasurement of the maximum current consumed by the motor during a starting sequence or an overload, as well as the duration.

Start inhibit time delay / number of starts before inhibitionIndicates the remaining number of starts allowed by the starts per hour protection function and, if the number is zero, the waiting time before starting is allowed.

Running hours counter / operating timeCumulative time during which the protected equipment (motor or transformer) has been operating (I > 0.1 Ib).The cumulative value is displayed in hours (0 to 65535 h).

Switchgear diagnosis functionsThese measurements are to be compared with the data supplied by the switchgear manufacturer.

Cumulative breaking currentThe value displayed may be used to evaluate the state of the circuit breaker poles.

Number of operationsRunning total of the number of opening operations performed by the device.

Device operating timeOperating time, charging time.These data may be used to evaluate the state of the pole operating mechanism.

ANSI 60FL - CT/VT supervisionThis function is used to monitor the complete measurement chain:b CT and VT sensorsb connectionb Sepam analog inputs.Supervision is ensured by:b checking of the consistency of the currents and voltages measuredb acquisition of phase or residual voltage transformer protection fuse melting contacts.In the event of current or voltage data loss, the assigned protection functions may be inhibited to avoid any nuisance tripping.

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Metering General settings and characteristics

General settings Selection Series 20 range Series 40 rangeIn rated phase current (sensor primary current)

2 or 3 1 A / 5 A CTs 1 A to 6250 A 1 A to 6250 A3 LPCT sensors 25 A to 3150 A (1) 25 A to 3150 A (1)

Ib base current (corresponds to the rated power of the equipment)

0.4 to 1.3 In 0.4 to 1.3 In

In0 residual current sum of the 3 phase currents see In rated phase current see In rated phase current

CSH120 or CSH200 core bal. CT 2 A or 20 A rating 2 A, 5 A or 20 A rating1 A / 5 A CT + CSH30 interposing ring CT

1 A to 6250 A (In0 = In) 1 A to 6250 A (In0 = In)

1 A / 5 A CT + CSH30 interposing ring CT - Sensitivity x10

- 1 A to 6250 A (In0 = In/10)

core balance CT + ACE990 (the ratio of the core bal. CT 1/n should be such that 50 y n y 1500)

according to current to be monitored and use of ACE990

according to current to be monitored and use of ACE990

Unp primary rated phase-to-phase voltage(Vnp: primary rated phase-to-neutral voltage: Vnp = Unp/3)

220 V to 250 kV 220 V to 250 kV

Uns secondary rated phase-to-phase voltage

3 VTs: V1, V2, V3 100, 110, 115, 120, 200, 230 V 100, 110, 115, 120, 200, 230 V

2 VTs: U21, U32 100, 110, 115, 120 V 100, 110, 115, 120 V1 VT: U21 100, 110, 115, 120 V 100, 110, 115, 120 V

Pulse-type accumulated energy counter Increments active energy - 0.1 kW.h to 5 MW.h

Increments reactive energy - 0.1 kvar.h to 5 Mvar.hFrequency 50 Hz or 60 Hz 50 Hz or 60 Hz(1) Table of In values in Amps: 25, 50, 100, 125, 133, 200, 250, 320, 400, 500, 630, 666, 1000, 1600, 2000, 3150.

Functions Working ranges Accuracy series 20 (1) Accuracy series 40 (1) MSA141 (2)

MeteringPhase current 0.1 to 1.5 In (4) typically ± 1% typically ± 0.5% bResidual current 0.1 to 1.5 In0 typically ± 1% typically ± 1% bAverage current and peak demand phase current

0.1 to 1.5 In typically ± 1% typically ± 0.5%

Phase-to-phase voltage 0.05 to 1.2 Unp typically ± 1% typically ± 0.5% bPhase-to-neutral voltage 0.05 to 1.2 Vnp typically ± 1% typically ± 0.5% bResidual voltage 0.015 to 3 Vnp typically ± 1% typically ± 1%Positive sequence voltage 0.05 to 1.2 Vnp typically ± 5% typically ± 2%Negative sequence voltage 0.05 to 1.2 Vnp - typically ± 2%Frequency series 20 50 ± 5 Hz or 60 ± 5 Hz ± 0.05 Hz - bFrequency series 40 25 to 65 Hz - ± 0.02 Hz bTemperature -30°C to +200°C or -22°F to 392°F ± 1°C from +20 to +140°C ± 1°C from +20 to +140°C bActive power 0.015 Sn (3) at 999 MW - typically ± 1% bReactive power 0.015 Sn (3) at 999 Mvar - typically ± 1% bApparent power 0.015 Sn (3) at 999 MVA - typically ± 1% bPower factor -1 (CAP) to 1 (IND) - typically ± 1%Peak demand active power 0.015 Sn (3) at 999 MW - typically ± 1%Peak demand reactive power 0.015 Sn (3) at 999 Mvar - typically ± 1%Active energy 0 to 2.1.108 MW.h - ± 1%, ± 1 digitReactive energy 0 to 2.1.108 Mvar.h - ± 1%, ± 1 digitNetwork diagnosis assistance

Phase tripping current 0.1 to 40 In ± 5% ± 5%Earth fault tripping current 0.1 to 20 In0 ± 5% ± 5%Unbalance / neg. seq. current li 10% to 500% Ib ± 2% ± 2%Phase displacement ϕ0 0 to 359° - typically ± 2°Phase displacement ϕ1, ϕ2, ϕ3 0 to 359° - typically ± 2°Machine operation assistance

Running hours counter / operating time 0 to 65535 hours ± 1% or ± 0.5 h ± 1% or ± 0.5 hThermal capacity used 0 to 800% (100% for I phase = Ib) ± 1% ± 1% bRemaining operating time before overload tripping

0 to 999 mn ± 1 mn ± 1 mn

Waiting time after overload tripping 0 to 999 mn ± 1 mn ± 1 mnStarting current 1.2 Ib à 24 In ± 5% ± 5%Starting time 0 to 300 s ± 300 ms ± 300 msStart inhibit time delay 0 to 360 mn ± 1 mn ± 1 mnNumber of starts before inhibition 0 to 60 1 1Cooling time constant 5 mn to 600 mn - ± 5%Switchgear diagnosis assistance

Cumulative breaking current 0 to 65535 kA² ± 10% ± 10%Number of operations 0 to 65535 1 1Operating time 20 to 100 ms ± 1 ms ± 1 msCharging time 1 to 20 s ± 0.5 s ± 0.5 s(1) In reference conditions (IEC 60255-6), typical for In or Unp.(2) Measurements available in analog format according to parameter setting of MSA141 module.(3) Sn: apparent power, = 3.Unp.In.(4) Measurement up to 0.02 In for information purpose.

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Protection Description

Current protection functionsANSI 50/51 - Phase overcurrentThree-phase protection against overloads and phase-to-phase short-circuits. The protection function comprises four units:b definite time (DT)b IDMT (16 types of IDMT curves)b instantaneous or time-delayed.Each unit has a reset time setting that allows:b detection of restriking faultsb coordination with electromechanical relays.

ANSI 50V/51V - Voltage-restrained overcurrentThree-phase protection against overloads and phase-to-phase short-circuits, suited to generator protection, for which the tripping set point is adjusted according to the voltage.It may be set as follows:b definite time (DT)b IDMT (16 types of IDMT curves)b instantaneous or time-delayed.Each unit has a reset time setting that allows:b detection of restriking faultsb coordination with electromechanical relays.

ANSI 50N/51N or 50G/51G - Earth fault or sensitive earth faultProtection against earth faults.Earth faults may be detected according to parameter setting based on:b the three phase currents (3I sum)b a specific CSH120 or CSH200 core balance CT according to the required diameter; this method gives greater sensitivity. The parameterizable choice of ratings provides a very wide range of settings.b a current transformer (1 A or 5 A), combined with a CSH30 interposing ring CT.The protection comprises four units:b definite time (DT)b IDMT (16 types of IDMT curves)b instantaneous or time-delayed.Each unit has a reset time setting that allows:b detection of restriking faultsb coordination with electromechanical relays.It also has harmonic 2 restraint to ensure stability during transformer energizing.

ANSI 50 BF - Breaker failureBackup protection that delivers a tripping order to the upstream or adjacent breakers should the breaker that is being commanded fail to trip, detected by measurement of the through current after a tripping order.

ANSI 46 - Negative sequence / unbalance Protection against phase unbalance.Sensitive protection to detect 2-phase faults at the end of long lines.Protection of equipment against temperature build-up cause by an unbalanced supply or the inversion or loss of a phase and against phase current unbalance. IDMT or definite time characteristics.

Directional current protection functionsANSI 67 - Directional phase overcurrent This protection function is three-phase. It comprises a phase overcurrent function associated with direction detection. It picks up if the phase overcurrent function in the chosen direction (line or busbar) is activated for at least one of the three phases. It operates as definite time or IDMT. It is insensitive to the loss of measurement voltage at the time of the fault.

ANSI 67N/67NC - Directional earth fault It has 2 types of characteristics:b type 1, projectionb type 2, according to I0 vector magnitude.It can operate on impedant, isolated or compensated neutral systems.The type 1 units allow the detection of restriking faults.The protection function comprises two units:b definite time (DT)b IDMT (16 types of IDMT curves) (type 2 only)b instantaneous or time-delayed.The type 2 units have a reset time setting that allows:b detection of restriking faultsb coordination with electromechanical relays.

Directional power protection functionsANSI 32P - Directional active overpowerThis protection function is activated if the power flowing in one direction or the other, according to the application (supplied or absorbed), is greater than the set point.

ANSI 32Q/40 - Directional reactive overpowerThis protection function may be used to detect synchronous machine (generator or motor) field loss.The protection function is activated if the reactive power flowing in one direction or the other, according to the application (supplied or absorbed), is greater than the set point.

Machine protection functionsANSI 49RMS - Thermal overload Protection of equipment against thermal damage caused by overloads. The protection may be inhibited by a logic input when required by process control conditions.The thermal capacity used is calculated according to a mathematical model which takes into account:b current RMS valuesb ambient temperatureb negative sequence current, a cause of motor rotor temperature rise.The protection function comprises 2 groups of settings, each of which includes:b an adjustable alarm set pointb an adjustable trip set pointb the initial thermal capacity used setting, in order to accurately adapt the protection characteristics to fit the equipment’s thermal withstand curves supplied by the manufacturer.b the equipment’s heating and cooling time constants. Sepam series 40 has a function that automatically calculates the cooling time constant based on measurement of the equipment temperature by a sensor.

Application for a transformer: switching of groups of settings by a logic input according to the transformer ventilation operating rate, natural or forced (ONAN or ONAF).

Application for a motor: switching of groups of settings according to a current set point to take into account the thermal withstand of the motor with a blocked rotor.

13

Protection Description

Machine protection functions (cont’d)ANSI 37 - Phase undercurrent Protection of pumps against the consequences of loss of priming.The protection function detects time-delayed current drops that correspond to motor no-load operation, characteristic of the loss of pump priming.

ANSI 48/51LR/14 - Locked rotor / excessive starting time Protection of motors that are liable to start with overloads or insufficient supply voltage and/or that drive loads that are liable to jam (e.g. crushers).The locked rotor function is an overcurrent protection function that is only confirmed after a time delay that corresponds to the normal starting time.Motor reacceleration and locked rotor detection (detection of zero speed) may be taken into account by logic inputs.

ANSI 66 - Starts per hour Protection against overheating caused by too frequent starts.Checking of the number of:b starts per hour (or adjustable time period)b consecutive starts.The protection inhibits motor energizing for a preset time period once the permissible limits have been reached.Motor re-acceleration may be taken into account by a logic input.

ANSI 26/63 - Thermostat, Buchholz, gas, pressure, temperature detectionProtection of transformers against temperature rise and internal faults via logic inputs linked to devices integrated in the equipment.

ANSI 38/49T - Temperature monitoring by RTD Protection function that detects abnormal overheating of the windings and/or bearings of motors equipped with RTDs.

The protection includes 2 independent set points that are adjustable for each RTD.

ANSI 27D - Positive sequence undervoltage Protection of motors against faulty operation due to insufficient or unbalanced supply voltage.Detection of reverse rotation direction.In order for the protection to be used, voltage transformers must be connected to Sepam to measure U21 and U32.

ANSI 27R - Remanent undervoltage Monitoring of the clearing of voltage sustained by rotating machines after circuit opening. The protection is used to prevent transient electrical and mechanical phenomena that are caused by fast re-energizing of motors.It monitors phase-to-phase voltage U21 or phase-to-neutral voltage V1.

Voltage protection functionsANSI 27 - Phase-to-phase undervoltage Protection used either for automated functions (transfer, load shedding) or to protect motors against undervoltage. The protection function monitors the drop in voltage in each of the phase-to-phase voltages measured.

ANSI 27S - Phase-to-neutral undervoltage Protection used to detect phase-to-earth faults (isolated neutral systems).

ANSI 59 - Phase-to-phase overvoltage Protection against abnormally high voltage or checking that there is sufficient voltage for a power supply transfer. It operates with phase-to-phase voltage (series 20 and series 40) or phase-to-neutral voltage (series 40 only).

ANSI 59N - Neutral voltage displacement Detection of insulation faults in isolated neutral systems by the measurement of neutral voltage displacement. The protection function is generally associated with transformer incomer or busbar protection.The function includes 2 set points.

ANSI 47 - Negative sequence voltage Protection against phase unbalance resulting from distant faults, a phase inversion or unbalanced power supply.

Frequency protection functionsANSI 81H - Overfrequency Protection against abnormally high frequency.

ANSI 81L - Underfrequency Detection of variances with respect to the rated frequency, in order to maintain a high quality power supply. The protection may be used for overall tripping or for load shedding.

ANSI 81R - Rate of change of frequency (ROCOF) Protection used for fast disconnection of a source transmitting power into a power network when a fault occurs, or to monitor load shedding.

RecloserANSI 79Automation device used to reclose the circuit breaker after tripping triggered by a transient fault on a line (the funciton includes 1 to 4 parameterizable reclosing cycles and can be easily adapted for different operating modes).

14

Protection Setting ranges

Functions Settings Time delaysANSI 50/51 - Phase overcurrent

Tripping curve Tripping time delay Reset time

Definite time DTSIT, LTI, VIT, EIT, UIT (1) DTRI DT

IEC: SIT/A, LTI/B, VIT/B, EIT/C DT or IDMTIEEE: MI (D), VI (E), EI (F) DT or IDMTIAC: I, VI, EI DT or IDMT

Is set point 0.1 to 24 In Definite time Inst.; 0.05 s to 300 s0.1 to 2.4 In IDMT 0.1 s to 12.5 s at 10 Is

Reset time Definite time (DT; timer hold) Inst.; 0.05 s to 300 s

IDMT (IDMT; reset time) 0.5 s to 20 sConfirmation (2) None

By negative sequence overvoltage

By phase-to-phase undervoltageANSI 50V/51V - Voltage-restrained phase overcurrent


IDMT DTSIT, LTI, VIT, EIT, UIT DTRI DT

IEC: SIT/A, LTI/B, VIT/B, EIT/C DT or IDMTIEEE: MI (D), VI (E), EI (F) DT or IDMTIAC: I, VI, EI DT or IDMT

Is set point 0.1 to 24 In Definite time Inst.; 0.05 s to 300 s0.1 to 2,4 In IDMT 0.1 s to 12.5 s at 10 Is


IDMT (IDMT; reset time) 0.5 s to 20 sANSI 50N/51N or 50G/51G - Earth fault



IEC: SIT/A,LTI/B, VIT/B, EIT/C DT or IDMTIEEE: MI (D), VI (E), EI (F) DT or IDMTIAC: I, VI, EI DT or IDMT

Is0 set point 0.1 to 15 In0 Definite time Inst.; 0.05 s to 300 s0.1 to 1 In0 IDMT 0.1 s to 12.5 s at 10 Is0


IDMT (IDMT; reset time) 0.5 s to 20 sANSI 50 BF - Breaker failure

Presence of current 0.2 to 2 In

Operating time 0.05 s to 30 sANSI 46 - Negative sequence / unbalance

Definite time 0.1 to 5 Ib 0.1 s to 300 s

IDMT 0.1 to 0.5 Ib (Schneider Electric) 0.1 to 1Ib (IEC, IEEE) 0.1 s to 1 sTripping curve Schneider Electric

IEC: SIT/A, LTI/B, VIT/B, EIT/C (2)

IEEE: MI (D), VI (E), EI (F) (2)

ANSI 67 - Directional phase overcurrentTripping curve Tripping time delay Reset time


CEI: SIT/A, LTI/B, VIT/B, EIT/C DT or IDMTIEEE: MI (D), VI (E), EI (F) DT or IDMTIAC: I, VI, EI DT or IDMT

Is set point 0.1 to 24 In Definite time Inst.; 0.05 s to 300 s0.1 to 2.4 In IDMT 0.1 s to 12.5 s at 10 Is


IDMT (IDMT; reset time) 0.5 s to 20 sCharacteristic angle 30°, 45°, 60°(1) Tripping as of 1.2 Is.(2) On series 40 only.

15

Protection Setting ranges

Functions Settings Time delaysANSI 67N/67NC - Directional earth fault, projection (type 1)

Characteristic angle -45°, 0°, 15°, 30°, 45°, 60°, 90°

Is0 set point 0.1 to 15 In0 Definite time Inst.; 0.05 s to 300 sVs0 set point 2 to 80% of UnpMemory time T0mem time 0; 0.05 s to 300 s

V0mem validity set point 0; 2 to 80% of UnpANSI 67N/67NC - Directional earth fault, according to vector magnitude (type 2)

Characteristic angle -45°, 0°, 15°, 30°, 45°, 60°, 90°

Tripping curve Tripping time delay Reset timeDefinite time DTSIT, LTI, VIT, EIT, UIT (1) DT

RI DTIEC, SIT/A,LTI/B, VIT/B, EIT/C DT or IDMTIEEE: MI (D), VI (E), EI (F) DT or IDMT

IAC: I, VI, EI DT or IDMTIs0 set point 0.1 to 15 In0 Definite time Inst.; 0.05 s to 300 s

0.1 to 1 In0 IDMT 0.1 s to 12.5 s at 10 Is0

Vs0 set point 2 to 80% of UnpReset time Definite time (DT; timer hold) Inst.; 0.05 s to 300 s

IDMT (IDMT; reset time) 0.5 s to 20 s

ANSI 32P - Directional active overpower1 to 120% of Sn (3) 0.1 s to 300 s

ANSI 32Q/40 - Directional reactive overpower5 to 120% de Sn (3) 0.1 s to 300 s

ANSI 49RMS - Thermal overload Rate 1 Rate 2Negative sequence factor 0 - 2.25 - 4.5 - 9

Time constant Heating T1: 5 to 120 mn T1: 5 to 120 mnCooling T2: 5 to 600 mn T2: 5 to 600 mn

Alarm and trip set points 50 to 300% of thermal capacity used

Cold curve modification factor 0 to 100%Switching of thermal settings condition by logic input

by Is setting adjustable from 0.25 to 8 Ib

Maximum equipment temperature 60 to 200°CANSI 37 - Phase undercurrent

0.15 to 1 Ib 0.05 s to 300 s

ANSI 48/51LR - Excessive starting time / locked rotor 0.5 Ib to 5 Ib ST start time 0.5 s to 300 s

LT and LTS time delays 0.05 s to 300 s

ANSI 66 - Starts per hourStarts per period 1 to 60 Period 1 to 6 hConsecutive starts 1 to 60 Time between starts 0 to 90 mn

ANSI 38/49T - Temperature (RTDs)Alarm and trip set points 0 to 180 °C (or 32 to 356 °F)ANSI 27D - ANSI 47 - Positive sequence undervoltage

15 to 60% of Unp 0.05 s to 300 sANSI 27R - Remanent undervoltage

5 to 100% of Unp 0.05 s to 300 s

ANSI 27 - Phase-to-phase undervoltage5 to 100% of Unp 0.05 s to 300 s

ANSI 27S - Phase-to-neutral undervoltage5 to 100% of Vnp 0.05 s to 300 s

ANSI 59 - Overvoltage phase-to-phase phase-to-neutral (2)

50 to 150% of Unp 50 to 150% of Vnp 0.05 s to 300 s

ANSI 59N - Neutral voltage displacement2 to 80% of Unp 0.05 s to 300 s

ANS 47 - Negative sequence overvoltage1 to 50% of Unp 0.05 s to 300 s

ANSI 81H - Overfrequencyseries 20 50 to 53 Hz or 60 to 63 Hz 0.1 s to 300 s

series 40 50 to 55 Hz or 60 to 65 Hz 0.1 s to 300 sANSI 81L - Underfrequency

series 20 45 to 50 Hz or 55 to 60 Hz 0.1 s to 300 s

series 40 40 to 50 Hz or 50 to 60 Hz 0.1 s to 300 sANSI 81 R - Rate of change of frequency

0.1 to 10 Hz/s Inst.; 0.15 s to 300 s

(1) Tripping as of 1.2 Is.(2) On series 40 only.(3) Sn = 3.In.Unp.

16

Connection diagrams Sepam series 20

S20 / T20 / M20 types

DE

5059

2

Connection to 1 A / 5 A current sensors

Connector Type Ref. CableA Screw-

typeCCA620 1 wire 0.2 to 2.5 mm2

(u AWG 24-12)2 wires 0.2 to 1 mm2 (u AWG 24-16)

Ring lug 6.35 mm

CCA622

B Ring lug 4 mm

CCA630 1.5 to 6 mm2

(AWG 16 to AWG 10)

C RJ45 CCA612D RJ45 CCA770: L = 0.6 m

CCA772: L = 2 mCCA774: L = 4 m

B21 / B22 types

DE

5059

3

Connector Type Ref. CableA Screw-

typeCCA620 1 wire 0.2 to 2.5 mm2


Ring lug 6.35 mm

CCA622

B Screw-type

CCT640 1 wire 0.2 to 2.5 mm2


C RJ45 CCA612D RJ45 CCA770: L = 0.6 m

CCA772: L = 2 mCCA774: L = 4 m

(1) This type of connection allows the calculation of residual voltage.

17

Connection diagrams Sepam series 40

S40 / S41 / S42 typesT40 / T42 / M41 / G40 types D

E50

596

Connection to 1 A / 5 A current sensorsConnector Type Ref. Cable

A Screw-type

CCA620 1 wire 0.2 to 2.5 mm2 (u AWG 24-12)2 wires 0.2 to 1 mm2 (u AWG 24-16)

Ring lug 6.35 mm

CCA622

B Ring lug 4 mm

CCA630 1.5 to 6 mm2

(AWG 16 to AWG 10)

C RJ45 CCA612

D RJ45 CCA770: L = 0.6 mCCA772: L = 2 mCCA774: L = 4 m

E Screw-type

CCA626 1 wire 0.2 to 2.5 mm2 (u AWG 24-12)2 wires 0.2 to 1 mm2 (u AWG 24-16)

Ring lug 6.35 mm

CCA627

(1) This type of connection allows the calculation of residual voltage.(2) Accessory for bridging terminals 3 and 5 supplied with CCA626 connector.

18

Connection diagrams Phase current inputs

Variant 1: phase current measurement by three 1 A or 5 A CTs (standard connection)

MT

1099

0

Connection of three 1 A or 5 A CTs to the CCA630 connector.

The measurement of the 3 phase currents allows the calculation of residual current.

Variant 2: phase current measurement by two 1 A or 5 A CTs

MT

1070

0

Connection of two 1 A or 5 A CTs to the CCA630 connector.

The measurement of phase currents 1 and 3 is sufficient to ensure all the current-based protection functions.

This arrangement does not allow the calculation of residual current.

Variant 3: phase current measurement by 3 LPCT type sensors

MT

1098

5

Connection of 3 Low Power Current Transducer (LPCT) type sensors to the CCA670 connector. The connection of just one or two sensors is not allowed and causes Sepam to switch to the fallback position.

The measurement of the 3 phase currents allows the calculation of residual current.

The In parameter, primary rated current measured by an LPCT, is to be chosen from the following values, in Amps: 25, 50, 100, 125, 133, 200, 250, 320, 400, 500, 630, 666, 1000, 1600, 2000, 3150.Parameter to be set using the advanced UMI and the SFT2841 software tool, to be completed by hardware setting of the microswitches on the CCA670 connector.

19

Connection diagrams Residual current input

Variant 1: residual current calculation by sum of 3 phase currentsThe residual current is obtained by taking the vector sum of the 3 phase currents I1, I2 and I3, measured by three 1 A or 5 A CTs or by three LPCT type sensors.See current input connection diagrams.

Variant 2: residual current measurement by CSH120 or CSH200 core balance CT (standard connection)

MT

1099

1

Arrangement recommended for the protection of isolated or compensated neutral systems in which very low fault currents need to be detected.

Setting range from 0.1 In0 to 15 In0, with In0 = 2 A or 20 A (or 5 A for series 40) according to parameter setting.

Variant 3: residual current measurement by 1 A or 5 A CT and CSH30 interposing ring CT

MT

1104

5

The CSH30 interposing ring CT is used to connect Sepam to 1 A or 5 A CTs to measure the residual current.b connection of CSH30 interposing ring CT to 1 A CT: make 2 turns through the CSH primary windingb connection of CSH30 interposing ring CT to 5 A CT: make 4 turns through the CSH primary windingb with series 40, the sensitivity can be multiplied by 10by parameter setting of In0 = In/10.

Setting range from 0.1 In to 15 In, or 0.01 In to 1.5 In (series 40)with In = CT primary current.

MT

1104

6

Variant 4: residual current measurement by core balance CT with ratio 1/n (n between 50 and 1500)

DE

5058

9

The ACE990 is used as an interface between a MV core balance CT with ratio 1/n (50 < n < 1500) and the Sepam residual current input.This arrangement makes it possible to keep the existing core balance CTs in the installation.

Setting range from 0.1 In0 to 15 In0, with In0 = k.n,with n = number of turns through core balance CTand k = factor to be determined according to the wiring of the ACE990 and the

parameter setting used by Sepam, among 20 discrete values from 0.00578 to0.26316.

20

Connection diagrams Sepam series 20 voltage inputs

The phase and residual voltage transformer secondary circuits are connected to the CCT640 connector (item ) on Sepam series 20, B type. The CCT640 connector contains 4 transformers which perform isolation and impedance matching of the VTs and Sepam input circuits.

Variant 1: measurement of 3 phase-to-neutral voltages (standard connection)

DE

5068

6

Phase voltage sensor parameter settingResidual voltage sensor parameter settingVoltages measured Values calculated

Measurements unavailable Protection functions unavailable (according to type of Sepam)

3V3V sumV1, V2, V3U21, U32, U13, V0, Vd, f

NoneNone

Variant 2: measurement of 3 phase-to-neutral voltage and residual voltage

DE

5068

7



3VExternal VTV1, V2, V3, V0U21, U32, U13, Vd, f

NoneNone

Variant 3: measurement of 2 phase-to-phase voltages

DE

5068

8



U21, U32NoneU21, U32U13, Vd, f

V1, V2, V3, V059N, 27S

Variant 4: measurement of 1 phase-to-phase voltage and residual voltage

DE

5068

9



U21External VTU21, V0f

U32, U13, V1, V2, V3, Vd47, 27D, 27S

Variant 5: measurement of 1 phase-to-phase voltage

DE

5069

0



U21NoneU21f

U32, U13, V1, V2, V3, V0, Vd47, 27D, 59N, 27S

B

21

Connection diagrams Sepam series 40 voltage inputs

The phase and residual voltage transformer secondary circuits are connected directly to the connector marked . The 3 impedance matching and isolation transformers are integrated in the Sepam series 40 base unit.

Variant 1: measurement of 3 phase-to-neutral voltages (standard connection)

MT

1099

2



3V3V sumV1, V2, V3U21, U32, U13, V0, Vd, Vi, f

NoneNone

Variant 2: measurement of 2 phase-to-phase voltages and residual voltage

MT

1099

3



U21, U32External VTU21, U32, V0U13, V1, V2, V3, Vd, Vi, f

NoneNone

Variant 3: measurement of 2 phase-to-phase voltages

MT

1099

4



U21, U32NoneU21, U32U13, Vd, Vi, f

V1, V2, V3, V067N/67NC, 59N

Variant 4: measurement of 1 phase-to-phase voltage and residual voltage

MT

1101

1



U21External VTU21, V0f

U32, U13, V1, V2, V3, Vd, Vi67, 47, 27D, 32P, 32Q/40, 27S

Variant 5: measurement of 1 phase-to-phase voltage

MT

1101

6



U21NoneU21f

U32, U13, V1, V2, V3, V0, Vd, Vi67, 47, 27D, 32P, 32Q/40,67N/67NC, 59N, 27S

E

22

Control and monitoring Description

Sepam performs the basic control and monitoring functions necessary for the operation of the electrical network, thereby reducing the need for auxiliary relays.The control and monitoring functions may be parameterized using the SFT2841 software tool, however each type of Sepam has parameter setting by default which allows easier commissioning in the most frequent applications.

ANSI 94/69 - Circuit breaker/contactor controlSepam is used to control breaking devices equipped with different types of closing and tripping coils:b circuit breakers with shunt trip or undervoltage trip unitsb latching contactors with shunt trip units.The breaking device control function processes all the circuit breaker closing and tripping conditions based on:b breaking device status informationb remote control ordersb protection functionsb program logic specific to each application (e.g. recloser).This function also inhibits breaking device closing according to the operating conditions.With Sepam series 20, it is necessary to use an MES114 module in order to have all the required logic inputs.

Switching of groups of settingsUsed to switch from one group of phase overcurrent and earth fault protection settings to another group of settings. Switching may be performed by a logic input or via the communication link.

Inhibition of thermal protectionThermal protection tripping may be inhibited via a logic input.

Re-accelerationAllows a logic input to take into account the restarting of an unstopped motor.

ANSI 68 - Logic discrimination (SSL) This function allows quick, selective tripping of the definite time or IDMT phase overcurrent and earth fault protection relays, without requiring the use of time intervals between upstream and downstream protection devices. The downstream relay transmits a blocking input signal if the protection device set points are exceeded.

The upstream relay receives the blocking input signal on the logic input used for the inhibition function. A saving mechanism ensures the operation of the protection in the event of an inhibition link failure.

ANSI 86 - Latching / acknowledgment

Output relay latching may be parameterized. Latched tripping orders are stored and must be acknowledged in order for the device to be put back into service. The user acknowledges via the keypad or remotely via a logic input or the communication link. Latching is stored in the event of a power outage.

Trip circuit supervisionDetects trip circuit faults (shunt trip units). Detects open/closed position discrepancy faults (undervoltage trip units).

WatchdogIndicates Sepam unavailability via output O4.

Output relay testThis function is used to activate each output relay.

23

Control and monitoring Logic inputs and outputs

M

T10

680

MT

1068

1

4 output relays on the base unitThe 4 relay outputs O1, O2, O3 and O4 on the base unit are connected to connector .Connector of the base unit may be either of the following:b CCA620 screw-type connector b CCA622 ring lug connector.O1 and O2 are 2 control outputs used by the breaking device control function for:b O1: breaking device trippingb O2: inhibition of breaking device closing.

O3 and O4 are indication outputs, only O4 can be activated by the watchdog function.

CCA620 connector (screw-type terminal block for straight fittings).

CCA622 connector (terminal block for ring lugs)

MT

1068

3

Optional input/output modulesThe 4 outputs on the base unit may be completed by adding an MES114 10 input/4 output module on the back of the base unit.3 modules are offered, MES114, MES114E or MES114F, to suit the different input voltage supply ranges.The modules offer different switching thresholds as well.The MES114 module is fully compatible with the MES108 (4 input/4 output) module which is no longer commercialized.

Input characteristicsb 10 potential-free inputsb external power source.Logic inputs MES114 MES114E MES114F

Voltage 24to 250 V DC

110to 125 V DC

110 V AC 220to 250 V DC

220to 240 V AC

Range 19.2to 275 V DC

88to 150 V DC

88to 132 V AC

176to 275 V DC

176to 264 V AC

Frequency - - 47 to 63 Hz - 47 to 63 Hz

Typical consumption 3 mA 3 mA 3 mA 3 mA 3 mA

Typical switching threshold

14 V DC 82 V DC 58 V AC 154 V DC 120 V AC

MES114 module (10 inputs / 4 outputs).Output characteristicsb 4 relay outputs O11, O12, O13, O14v O11: control output, used for breaking device closingv O12, O13, O14: indication outputs.

Connection to screw-type connectorsb 1 wire with cross-section 0.2 to 2.5 mm² (u AWG 24-12)b or 2 wires with cross-section 0.2 to 1 mm² (u AWG 24-16).

MT

1068

4

MT

1068

5

Wiring of the breaking device trip circuitWiring to be used when the "CB control" function is activated.

Wiring for shunt trip coil.With monitoring of trip circuit and open/closed matching.

Wiring for undervoltage trip unit.With monitoring of open / closed matching.

AA

A54O1

M12

5

I11

I124

D

+

A54O1

M12

5

I11

I124

D

+

24

Control and monitoring Logic input / output assignment for Sepam series 20 applications

Chart of logic input and output assignments for Sepam series 20 applicationsThe use of the preset control and monitoring functions requires exclusive parameter setting and particular wiring of the inputs according to the application and type of Sepam. Input assignment and parameter setting of the control and monitoring functions may be done on the advanced UMI or using the SFT2841 software tool.Since a current input may only be assigned to a single function, not all the functions are available at the same time.Example: when the logic discimination function is used, the switching of groups of settings function may not be used.

Functions S20 T20 M20 B21, B22 AssignmentLogic inputs

Open position b b b b I11

Closed position b b b b I12

Logic discrimination, receive blocking inputSwitching of groups of settings A/B

b b I13

b b bExternal resetExternal tripping 4 (1)

bb

bb

bb

bb

I14

External tripping 1 (1)

External network synchronizationbb

b (2)

bbb

bb

I21


Motor re-accelerationb b (3) b

bb I22


Thermistor tripping (1)

Buchholz alarm (1) Rotor direction detection

b b (4)

bb

bb

b

b I23

End of charging positionThermostat alarm (1) Thermistor alarm (1)

b bbb

b

b

I24

Inhibit remote control (1) SF6-1

bb

bb

bb

bb

I25

SF6-2Switching of thermal settings

Inhibit thermal overloadInhibit recloser

b

b

bbb

bbb

b I26

Logic outputsTripping b b b b O1

Inhibit closing b b b b O2

Watchdog b b b b O4

Close order b b b b O11

NB: all of the logic inputs are available via the communication link and are accessible in the SFT2841 matrix for other non predefined applications.

(1) These inputs have parameter setting with the prefix "NEG" for undervoltage type operation.(2) Buchholz/Gaz trip message.(3) Thermostat trip message.(4) Pressure trip message.

25

Control and monitoring Logic input / output assignment for Sepam series 40 applications

Chart of logic input and output assignments for Sepam series 40 applicationsThe functions defined in the chart below are associated with a logic input by configuration. This means that the functions used may be adapted to suit needs within the limits of the logic inputs available. They may be reversed for undervoltage type operation.

Functions S40, S41 S42 T40, T42 M41 G40 Assign-ment

Logic inputsOpen position b b b b b I11

Closed position b b b b b I12

Logic discrimination, receive blocking input 1 b b b b Free

Logic discrimination, receive blocking input 2 b Free

Switching of groups of settings A/B b b b b b I13

External reset b b b b b Free

External tripping 1 b b b b b Free



Buchholz/gas tripping b Free

Thermostat tripping b Free

Pressure tripping b Free

Thermistor tripping b b b Free

Buchholz/gas alarm b Free

Thermostat alarm b Free

Pressure alarm b Free

Thermistor alarm b b b Free

End of charging position b b b b b Free

Inhibit remote control b b b b b Free

SF6 b b b b b Free

Inhibit recloser b b Free

External synchronization b b b b b I21

Inhibit thermal overload b b b Free

Switching of thermal settings b b b Free

Motor re-acceleration b Free

Rotor rotation detection b Free

Inhibit undercurrent b Free

Inhibit closing b b b b b Free

Open order b b b b b Free

Close order b b b b b Free

Phase voltage transformer fuse melting b b b b b Free

Residual voltage transformer fuse melting b b b b b Free

External positive active energy counter b b b b b Free

External negative active energy counter b b b b b Free

External positive reactive energy counter b b b b b Free

External negative reactive energy counter b b b b b Free

Logic outputsTripping b b b b b O1

Inhibit closing b b b b b O2

Watchdog b b b b b O4

Close order b b b b b O11

NB: all of the logic inputs are available via the communication link and are accessible in the SFT2841 matrix for other non predefined applications.

26

Control and monitoring Annunciation

ANSI 30 - Front panel indicationsThe appearance of alarms is indicated locally by:b messages on the advanced UMI display, available in 2 language versions:v in English, factory-set messages, non-modifiablev in the local language, according to the version delivered.The language version is chosen at the time of parameter setting.b signal lamps on the front panel.Signal lamp addressing may be parameterized via the SFT2841 software tool.

Remote annunciationUsed to transfer data to the control room via the communication link.Information such as circuit breaker position, SF6 fault alarm, etc.

Alarm processing on advanced UMIb when an event appears, the signal lamp goes on and the related message is displayedb to clear the message from the display, the user presses the "clear" keyb after the fault disappears and the user presses the "reset" key, the signal lamp goes off and the protection unit is resetb the list of alarm messages remains accessible ( key) and may be cleared by pressing the "clear" key.

List of main messages (1)

Functions English (factory-set) Local language (e.g. French)Phase overcurrent PHASE FAULT DEFAUT PHASE

Earth fault EARTH FAULT DEFAUT TERREBreaker failure BREAKER FAILURE DEF. DISJONCTEURNegative sequence / unbalance UNBALANCE I DESEQUIFREE I

Directional phase overcurrent DIR. PHASE FAULT DEFAUT PHASE DIR.Directional earth fault DIR. EARTH FAULT DEFAUT TERRE DIR.Active overpower REVERSE P RETOUR P

Thermal overload THERMAL ALARM ECHAUFT. ALARMETHERMAL TRIP ECHAUFT. DECLT.

Locked rotor / ROTOR BLOCKING BLOCAGE ROTOR

Rotor locked at starting STRT LOCKED ROTR. BLOC ROTOR DEM.Excessive starting time LONG START DEMARRAGE LONGStarts per hour START INHIBIT DEMARRAGE INHIBE

Phase undercurrent UNDER CURRENT CURRENT <<Overvoltage OVERVOLTAGE VOLTAGE >>Undervoltage UNDERVOLTAGE VOLTAGE <<

Positive sequence undervoltage UNDERVOLT. PS VOLTAGE Vd <<ROTATION ROTATION

Residual overvoltage V0 FAULT DEFAUT V0

Overfrequency OVER FREQ. FREQUENCE >Underfrequency UNDER FREQ. FREQUENCE <Negative sequence overvoltage UNBALANCE V DESEQUIFREE V

Temperature (RTDs) OVER TEMP. ALM. T° ALARMEOVER TEMP. TRIP T°. DECLT.RTD’S FAULT DEFAUT SONDES

Thermostat THERMOST. ALARM THERMOT. ALARMETHERMOST. TRIP THERMOST. DECLT.

Buchholz BUCHHOLZ ALARM BUCHH ALARME

BUCHH/GAS TRIP BUCHH/GAZ DECLT.Pressure PRESSURE TRIP PRESSION DECLT.

PRESSURE ALM. PRESSION ALARME

External tripping x (1 to 3) EXT. TRIP x (1 to 3) DECLT. EXT. x (1 à 3)Trip circuit supervision TRIP CIRCUIT CIRCUIT DECLT.Breaker control CONTROL FAULT DEFAUT COMDE.

SF6 SF6 LOW BAISSE SF6(1) According to the type of Sepam and Sepam equipped with advanced UMI, or SFT2841.

!

27

Control and monitoring Customization

Each Sepam has a logic scheme by default according to the type chosen (S20, T20,...).The default program logic links the data derived from the protection functions to the signal lamps and output relays to fit the unit’s most frequently used application.It may be adapted for specific operations using the SFT2841 software tool, which offers the following customization functions:b customization of the control matrixb logical equation editor (for Sepam series 40 only)b modification of message wording (for Sepam series 40 only).

MT

1110

4

Control matrixThe control matrix as a simple way to assign the input data derived from:b protection functions b control and monitoring functionsb logic inputsto the following output data:b 9 signal lamps on the front panel of Sepamb output relaysb triggering of disturbance recording.

SFT2841: control matrix.

MT

1110

5

Logical equation editor (Sepam series 40)Sepam series 40 includes a logical equation editor which may be used to adapt the standard control functions to suit various specific cases by programming the additional functions required.A logical equation editor groups logic input data derived from:b protection functionsb logic inputsusing the Boolean operators AND, OR, XOR, NOT, and automation functions such as time delays, bistables and time programming.The result of an equation may then be:b assigned to a logic output, a signal lamp, a message via the control matrixb transmitted by the communication link, as a new remote indication b utilized by the circuit breaker/contactor control function to trip, close or inhibit closing of the breaking deviceb used to inhibit or reset a protection function.The entry of equations is assisted, and a syntax check is carried out systematically.

SFT2841: logical equation editor (series 40).

Alarm and operating messages (Sepam series 40)The wording of Sepam alarm and operating messages may be customized using the SFT2841 software tool.The new messages are added to the list of existing messages and may be assiged via the control matrix.

28

Communication Description and characteristics

With Modbus communication, Sepam units may be connected to a remote monitoring and control system equipped with a master Modbus communication channel.To connect Sepam to a communication network, an interface module is required:b ACE949-2, interface for connection to a 2-wire RS 485 networkb ACE959, interface for connection to a 4-wire RS 485 networkb ACE937, interface for connection to a fiber optic communication star system.

Data available The data available depend on the type of Sepam. All of the data used by the remote monitoring and control system are grouped together so as to be available in a single readout.

Readout of measurements and diagnosis informationAll of the values measured by Sepam are available in the control room:b phase and earth fault currents, peak demand currentsb phase-to-phase, phase-to-neutral and residual voltages, frequencyb active and reactive power, peak demand power, accumulated energyb temperaturesb switchgear diagnosis data: cumulative breaking current, operating time and number of operations, circuit breaker charging time, etc.b machine operating assistance data: motor starting time, remaining operating time before overload tripping, waiting time after tripping, etc.

Remote indicationsb reading of digital remote indication data.Remote indications are preassigned to the protection or control functions and depend on the type of Sepam.b reading of the status of 10 logic inputs.

Remote control ordersWriting of 16 pulse-type remote control orders (TC):b in direct modeb or in SBO (Select Before Operate) mode.The remote control orders are preassigned to the metering, protection or control functions and depend on the type of Sepam.

Time-tagging of eventsb time-tagged data: logic inputs, remote indications.b time-tagging of event within a msb synchronization by Modbus network or by external signal received by logic input I21.

Remote settingb reading of Sepam configuration identificationb reading of protection function settings (remote reading)b writing of protection function settings (remote setting).Protection setting writing may be inhibited by parameter setting.

Other functions available via the communication linkb remote control of the MSA141 optional analog outputb transfer of disturbance recording data.

PE

5002

9

ACE949-2 2-wire RS 485 network connection interface.

PE

5002

4

CharacteristicsSepam Modbus communication port

Type of transmission Asynchronous serialProtocol ModbusResponse time < 15 msMaximum number of slaves 25

ACE937 fiber optic connection interface. Data format 10 bits: 1 start, 8 data, 1 stopor 11 bits: 1 start, 8 data, 1 parity, 1 stop

ParametersSlave address 1 to 255Transmission rate 4800, 9600, 19200, 38400 baudsParity check None, even, odd

RS 485 electrical interfaceStandard EIA 2-wire RS 485 differential (ACE949-2)

EIA 4-wire RS 485 differential (ACE959)Distributed power supply External, 12 V DC or 24 V DC ±10 %Consumption 16 mA in receiving mode / 40 mA max. in sending modeNumberof Sepam units

Max. length of RS 485 network with 12 V DC power supply

Max. length of RS 485 network with 24 V DC power supply

5 320 m 1000 m10 180 m 750 m20 160 m 450 m25 125 m 375 m

Fiber optic interfaceWavelength 820 Nm (infra-red)Type of connector STFiber type Multimode glassFiber optic diameter (µm)

Numerical aperture (NA)

Max. attenuation (dBm/km)

Min. optical power available (dBm)

Max. length of fiber (m)

50 / 125 0.2 2.7 5.6 70062.5 / 125 0.275 3.2 9.4 1800100 / 140 0.3 4 14.9 2800200 (HCS) 0.37 6 19.2 2600

29

Communication Description and characteristics

Connection of the ACE949-2interface for 2-wire RS 485 networks

Implementation of the Modbus network

MT

1104

8

RS 485 networkA set of adapted accessories is used for fast, dependable implementation of the communication network from both the electrical and environmental (electromagnetic compatibility) viewpoints.

MT

1071

2

Network connection interface, to be supplied by 12 V DC or 24 V DC distributed power supplyb ACE949-2 for 2-wire RS 485 networksb or ACE959 for 4-wire RS 485 networks.

CCA612 cord for connection of the interface to the C port of the Sepam base unit.

Interface for connection of the RS 485 network to the Modbus master, with distributed power supply to the ACE949-2 interfaces and polarization/termination of the communication linkb ACE909-2, RS 232/2-wire RS 485 converterb or ACE919CA (110 V AC or 220 V AC) 2-wire RS 485/2-wire RS 485 interfaceb or ACE919CC (24 V DC or 48 V DC) 2-wire RS 485/2-wire RS 485 interface.

Modbus network cableb for 2-wire RS 485 network: two shielded twisted pairs(1 RS 485 pair, 1 pair for power suuply)b for 4-wire RS 485 ntework: three shielded twisted pairs(2 RS 485 pairs, 1 pair for power supply)b with tinned copper braiding shielding, coverage: > 65%b characteristic impedance: 120 Ωb gauge: AWG 24b resistance per unit length: < 100 Ω/kmb capacitance between conductors: < 60 pF/mb capacitance between conductor and shielding: < 100 pF/mb maximum length: 1300 m.

Example of standard cable (for 2-wire RS 485 network):b supplier: BELDEN reference: 9842b supplier: FILOTEX reference: FMA-2PS.High-performance cable (for 2-wire RS 485 network):b supplier: FILECA reference: F2644-1 (cable distributed by Schneider Electric in 60 m strands, reference CCR301).

For more information, refer to the "Sepam - RS 485 network connection guide" PCRED399074EN.

Fiber optic network

Connection of the ACE959interface for 4-wire RS 485 networks

MT

1104

9

Rx+, Rx-: Sepam receiving (eq IN+, IN-)Tx+, Tx-: Sepam transmitting (eq OUT+, OUT-)

DE

5059

0

(1) Distributed power supply with separate wiring or included in the shielded cable (3 pairs).(2) Terminal block for connection of the distributed power supply module.

Connection of the ACE937 fiber optic interface

DE

5027

4

ACE937 fiber optic connection interface.

CCA612 cord for connection of the interface to the C port of the Sepam base unit.

Optical star.

Fiber optic.

1

2

3

4

1

2

3

4

30

Optional remote modules Description

MT

1099

6

DSM303 remote advanced UMI moduleThe DSM303 module provides the same functional features as the fixed advanced UMI.Associated with a Sepam with a basic UMI, it may be installed on the front panel of the cubicle in the most suitable operating location.b reduced depth of 30 mmb a single module for each Sepam with a basic UMI, to be connected by one of the CCA772 or CCA774 prefabricated cords (2 or 4 meters). This module may not be connected to Sepam units with integrated advanced UMIs.

DSM303 remote advanced UMI module.

MT

1100

9

MSA141 analog output moduleThe MSA141 module converts Sepam measurements into analog signals.b selection of the measurement to be converted by parameter settingb 0-10 mA, 4-20 mA or 0-20 mA analog signal according to parameter settingb connection of the analog output to a screw-type connector:v 1 wire with cross-section 0.2 to 2.5 mm² (u AWG 24-12)v or 2 wires with cross-section 0.2 to 1 mm² (u AWG 24-16)b a single module for each Sepam base unit, to be connected to one of the CCA770, CCA772 or CCA774 prefabricated cords (0.6, 2 or 4 meters).

MSA141 analog output module.

MT

1101

0

MET148-2 temperature sensor moduleTemperature measurement (e.g. in transformer or motor windings) is utilized by the following protection functions:b thermal overload (to take into account the ambient temperature)b temperature monitoring.With the MET148-2 module, 8 temperature sensors may be connected.b type of temperature sensor Pt100, Ni100 or Ni120 according to parameter settingb 3-wire temperature sensorsb connection of temperature sensors to screw-type connectors:v 1 wire with cross-section 0.2 to 2.5 mm² (u AWG 24-12)v or 2 wires with cross-section 0.2 to 1 mm² (u AWG 24-16)b a single module for each Sepam series 20 base unit, to be connected to one of the CCA770, CCA772 or CCA774 prefabricated cords (0.6, 2 or 4 meters)b 2 modules for each Sepam series 40 base unit, to be connected to one of the CCA770, CCA772 or CCA774 prefabricated cords (0.6, 2 or 4 meters).

MET148-2 temperature sensor module.

31

Optional remote modules Connections

Connection of DSM303remote advanced UMI

Wiring of inter-module links Different module connection combinations are possible and the modules are connected by prefabricated cords which come in 3 different lengths:b CCA770 (L = 0.6 m)b CCA772 (L = 2 m)b CCA774 (L = 4 m).The modules are linked by cords which provide the power supply and act as functional links with the Sepam unit (D connector to Da connector Da, Dd to Da, ...).The DSM303 module may only be connected at the end of the link.

MT

1071

3

Connection of MSA141remote analog output

DE

5061

0

MT

1071

4

Connection of the MET148-2 8 temperature sensor inputs

MT

1071

5 Maximum configurationThree modules at the most may be connected to the base unit in accordance with the order and maximum lengths of connections specified in the chart below:

Base Cord Module 1 Cord Module 2 Cord Module 3

series 20 CCA772 MSA141 CCA770 MET148-2 CCA774 DSM303

series 40 CCA772 MSA141 CCA770 MET148-2 CCA774 DSM303

series 40 CCA772 MSA141 CCA770 MET148-2 CCA772 MET148-2

series 40 CCA772 MET148-2 CCA770 MET148-2 CCA774 DSM303

32

Sensors LPCT type current sensors

MT

1100

3

CLP1 LPCT sensorsCLP1 sensors are voltage-output current sensors of the Low Power Current Transducer (LPCT) type, compliant with the IEC 60044-8 standard.CLP1 sensors are designed to measure rated currents between 25 A and 1250 A, with a ratio of 100 A / 22.5 mV, and may be used on networks with a maximum of 17.5 kV.The secondary winding of the CLP1 sensor is pre-equipped with a 5-m long shielded cable fitted with an RJ45 connector, which is connected to the 9-pin sub-D connector

on Sepam via a CCA670 interface connector, mounted on the rear panel of the Sepam base unit.

CharacteristicsRated primary current 100 ARated secondary voltage 22.5 mVRated primary extended current 1250 A

Measurement accuracy class 0.5 0.5 % between 100 and 1250 A0.75 % at 20 A1.5 % at 5 A

Protection accuracy class 5PRated accuracy limit primary current 40 kA

CLP1 sensor. Accuracy burden u 2 kΩRated thermal short-circuit current 31.5 kA x 4 s - 40 kA x 3 sRated voltage (Um) 17.5 kVRated power frequency withstand voltage 38 kV - 42 kV

Rated lightning impulse withstand voltage 95 kVWeight 8 kg

ACE917 injection adapter

DE

5069

3

The ACE917 adapter is used to test the protection chain with a standard injection box, when Sepam is connected to LPCT sensors.The ACE917 adapter is inserted between: b the standard injection boxb the LPCT test plug:v integrated in the Sepam CCA670 connectorv or transferred by means of the CCA613 accessory.

The following are supplied with the ACE917 injection adapter:b 220 V AC power supply cordb 3-meter ACE917 / LPCT test plug on CCA670 or CCA613 connection cord.

Accessory connection principle.

CCA613 remote test plugThe CCA613 test plug, panel-mounted on the front of the cubicle and fitted with a 3-meter cord, is used to transfer data from the integrated test plug to the CCA670 interface connector on the rear panel of Sepam.

MT

1102

2

MT

1105

6

MT

1102

8

Front view with cover lifted. Right side view. Cutout.

B

67,5

44

69

46

33

Sensors Core balance CTs

MT

1031

5

CSH120, CSH200 core balance CTsThe specifically designed CSH120 and CSH200 core balance CTs are used for direct residual current measurement. The only difference between them is the diameter.

Characteristics:b accurancy: ± 5% at 20°Cb transformation ratio: 1/470b maximum permissible current: 20 kA - 1 sb operating temperature: - 25°C to +70°Cb storage temperature: - 40°C to +85°Cb drift in accuracy related to temperature: ± 1%b the wiring resistance should be < 4 Ω.

CSH120 and CSH200 core balance CTs.M

T11

057

Dimensions (mm) Weight (kg)

A B D E F H J K LCSH120 120 164 44 190 76 40 166 62 35 0.6CSH200 200 256 46 274 120 60 257 104 37 1.4

MT

1105

8

CSH30 interposing ring CTThe CSH30 interposing ring CT is used as an interface when the residual current is measured using 1 A or 5 A current transformers.It should be installed near the Sepam input (L < 2 m).b weight: 0.12 kgb mounted on symmetrical DIN rail.

MT

1072

0

ACE990 core balance CT interfaceThe ACE990 interface is used to adapt measurements between a MV core balance CT with a ratio of 1/n (50 y n y 1500), and the Sepam residual current input.

Characteristicsb weight: 0.64 kgb mounted on symmetrical DIN railb accuracy:v amplitude: ± 1%v phase: < 2°b maximum permissible current: 20 kA 1 s (on the primary winding of a MV core balance CT with a ratio of 1/50 that does not saturate)b operating temperature: -5°C to +55 °C.b storage temperature: -25 °C to +70 °C.

34

Characteristics Size and weight

Sepam base unitFront panel-mounted

Top view Side view Cutout

MT

1105

9

MT

1106

0

MT

1106

1

Mounting shown with advanced UMI and optional MES114 module.Weight series 20 =1.2 kg without option.

1.7 kg with option.Weight series 40 =1.4 kg without option.

1.9 kg with option.

Mounting plate thickness < 3 mm.

Cutout accuracy must be complied with to ensure good Sepam mechanical withstand.

MT

1106

2"Terminal block" mounting with AMT840 plateUsed to mount Sepam at the back of the compartment with access to the connectors on the rear panel.

Mounting associated with the use of the remote advanced UMI (DSM303).

35

Characteristics Size and weight

DSM303 moduleb Weight: 0.3 kg

Cutout for panel-mounting (mounting plate thickness < 3 mm)Side view Cutout

DE

5069

2

MT

1106

3

MT

1106

4

ACE949-2 moduleb weight: 0.1 kgb mounted on symmetrical DIN rail

ACE959 moduleb weight: 0.25 kgb mounted on symmetrical DIN rail

ACE937 moduleb weight: 0.1 kgb mounted on symmetrical DIN rail

MT

1072

5

MT

1072

6

DE

5068

5

MET148-2 moduleb weight: 0.2 kgb mounted on symmetrical DIN rail

MSA141 moduleb weight: 0.2 kgb mounted on symmetrical DIN rail

MT

1072

7

MT

1072

8

(1) Depth with CCA77x connection cord: 70 mm.

36

Characteristics Electrical characteristics

Analog inputsCurrent transformer input impedance < 0.001 Ω1 A or 5 A CT (with CCA630) consumption < 0.001 VA at 1 A1 A to 6250 A ratings < 0.025 VA at 5 A

rated thermal withstand 3 In1-second overload 100 In

Voltage transformer input impedance > 100 kΩ220 V to 250 kV ratings input voltage 100 to 230/√3 V

rated thermal withstand 230 V (1.7 Unp)1-second overload 480 V (3.6 Unp)

Temperature sensor input (MET148-2 module)Type of sensor Pt 100 Ni 100 / 120Isolation from earth none none

Current injected in sensor 4 mA 4 mALogic inputs MES114 MES114E MES114F

Voltage 24 to 250 V DC 110 to 125 V DC 110 V AC 220 to 250 V DC 220 to 240 V AC

Range 19.2 to 275 V DC 88 to 150 V DC 88 to 132 V AC 176 to 275 V DC 176 to 264 V ACFrequency - - 47 to 63 Hz - 47 to 63 HzTypical consumption 3 mA 3 mA 3 mA 3 mA 3 mA

Typical switching threshold 14 V DC 82 V DC 58 V AC 154 V DC 120 V ACControl output relays (O1, O2, O11 contacts)

Voltage DC 24 / 48 V DC 127 V DC 220 V DC

AC (47.5 to 63 Hz) - - - 100 to 240 V ACRated current 8 A 8 A 8 A 8 ABreaking capacity resistive load 8 / 4 A 0.7 A 0.3 A

L/R load < 20 ms 6 / 2 A 0.5 A 0.2 AL/R load < 40 ms 4 / 1 A 0.2 A 0.1 Aresistive load - - - 8 A

p.f. load > 0.3 - - - 5 AMaking capacity < 15 A for 200 msIndication output relays (O3, O4, O12, O13, O14 contacts)

Voltage DC 24 / 48 V DC 127 V DC 220 V DCAC (47.5 to 63 Hz) - - - 100 to 240 V AC

Rated current 2 A 2 A 2 A 2 A

Breaking capacity L/R load < 20ms 2 / 1 A 0.5 A 0.15 Ap.f. load > 0.3 - - - 1 A

Power supply Sepam series 20range deactivated consumption (1) max. consumption (1) inrush current

24 / 250 V DC -20% +10% 2 to 4.5 W 6 to 8 W < 10 A for 10 ms110 / 240 V AC -20% +10% 3 to 9 VA 9 to 15 VA < 15 A for 1st half-period

47.5 to 63 Hzbrownout withstand 10 ms

Power supply Sepam series 40range deactivated consumption (1) max. consumption (1) inrush current

24 / 250 V DC -20% +10% 3 to 6 W 7 to 11 W < 28 A 100 µs110 / 240 V AC -20% +10% 3 to 6 VA 9 to 25 VA < 28 A 100 µs

47.5 to 63 Hzbrownout withstand 20 ms

Analog output (MSA141 module)Current 4 - 20 mA, 0 - 20 mA, 0 - 10 mALoad impedance < 600 Ω (wiring included)Accuracy 0.50%

(1) According to configuration.

37

Characteristics Environmental characteristics

Electromagnetic comptability IEC / EN standard Level / Class ValueEmission tests

Disturbing field emission EN 55022 / CISPR22 A

Conducted disturbance emission EN 55022 / CISPR22 BImmunity tests – Radiated disturbances

Immunity to radiated fields 60255-22-3 / 61000-4-3 III 10 V/m

Electrostatic discharge 60255-22-2 / 61000-4-2 III 8 kV air6 kV contact

Immunity tests – Conducted disturbancesImmunity to conducted RF disturbances 61000-4-6 III 10 VFast transient bursts 60255-22-4 / 61000-4-4 IV

1 MHz damped oscillating wave 60255-22-1 III 2.5 kV MC1 kV MD

Impulse waves 61000-4-5 IIIVoltage interruptions 60255-11 series 20: 100 % 10 ms

series 40: 100 % 20 ms

Mechanical robustness IEC / EN standard Level / Class ValueIn operation

Vibrations 60255-21-1 2 1 GnShocks 60255-21-2 2 10 Gn / 11 ms

Earthquakes 60255-21-3 2De-energised

Vibrations 60255-21-1 2 (1) 2 Gn

Shocks 60255-21-2 2 (1) 30 Gn / 11 msJolts 60255-21-2 2 (1) 20 Gn / 16 ms

Climatic withstand IEC / EN standard Level / Class ValueIn operation

Exposure to cold 60068.2.1 series 20: Abseries 40: Ad

-25 °C

Exposure to dry heat 60068.2.2 series 20: Bbseries 40: Bd

+70 °C

Continuous exposure to damp heat 60068.2.3 Ca 93 % RH; 40 °C10 days

Temperature variation with specified variation rate 60068.2.14 Nb –25 °C à +70 °C5 °C/min

Salt mist 60068-2-52 Kb / 2

Influence of corrosion 60654-4 Clean industrial airIn storage (4)

Exposure to cold 60068.2.1 Ab -25 °C

Exposure to dry heat 60068.2.2 Bb +70 °CContinuous exposure to damp heat 60068.2.3 Ca 93 % RH; 40 °C

56 days

Safety IEC / EN standard Level / Class ValueEnclosure safety tests

Front panel tightness 60529 IP52 Other panels closed, except for rear panel IP20

NEMA Type 12 with gasket supplied

Fire withstand 60695-2-11 650 °C with glow wireElectrical safety tests

Earth continuity 61131-2 30 A1.2/50 µs impulse wave 60255-5 5 kV (2)

Power frequency dielectric withstand 60255-5 2 kV 1 mn (3)

Certificatione Harmonized standards:

b Series 20: EN 50081-2 b Series 40: EN 50263

European directives:b 89/336/EEC Electromagnetic Comptability (EMC) Directivev 92/31/EEC Amendmentv 93/68/EEC Amendmentb 73/23/EEC Low Voltage Directivev 93/68/EEC Amendment

UL - UL508 - CSA C22.2 n° 14-95 File E212533CSA CSA C22.2 n° 14-95 / n° 94-M91 / n° 0.17-00 File 210625

(1) Results given for intrinsic withstand, excluding support equipment(2) Except for communication: 3 kV in common mode and 1kV in differential mode(3) Except for communication: 1 kVrms(4) Sepam must be stored in its original packing.

38

Notes

39

Notes

40

Notes

Schneider Electric Industries SASPostal address:Electrical Distribution CommunicationF - 38050 Grenoble cedex 9FranceTel : +33 (0)4 76 57 60 60

http://www.schneider-electric.comhttp://www.sepamrelay.com

As standards, specifications and designs change from time to time, please ask for confirmation of the information given in this publication.

This document has been printed on ecological paper.

Design: AmegPublication: Schneider ElectricPrinted:

04-2003ART.08535

PC

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1004

EN

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Order formSepam series 20Sepam series 40

To make it easier for you to choose your equipment and fill in your order form, it is advisable to use the Schneider Electric electronic catalogue (please consult us)or to attach this page to your order, indicating the requested quantities in the spaces

and checking off the boxes that correspond to your choices.

Base units Additional modules and accessoriesSepam series 20 Input / output modulesType User-Machine Quantity Designation Reference Quantityof application Interface 10 inputs + 4 outputs module (24-250 V DC) MES114

S20 basic 10 inputs + 4 outputs module (110-125 V DC and V AC) MES114Eadvanced 10 inputs + 4 outputs module (220-250 V DC and V AC) MES114F

T20 basic Remote modules and connection cordsadvanced Designation Reference Quantity

M20 basic 8 temperature sensor module MET148-2advanced Analog output module MSA141

B21 basic Remote advanced UMI module DSM303advanced Remote module connection cord L = 0.6 m CCA770

B22 basic Remote module connection cord L = 2 m CCA772advanced Remote module connection cord L = 4 m CCA774

Working language Mounting plate AMT840English / French Communication accessoriesEnglish / Spanish Designation Reference QuantityEnglish / Local (1) 2 wire, RS 485 network interface, without CCA612 cord ACE949-2Type of phase current sensor 4-wire, RS 485 network interface, without CCA612 cord ACE959(for S20, T20 and M20) Fiber optic interface, without CCA612 cord ACE937

1 A / 5 A CT Network interface connection cord L = 3 m CCA612LPCT RS 232/RS 485 converter ACE909-2Type of main connector RS 485/RS 485 interface (AC) ACE919CA

Screw-type connector RS 485/RS 485 interface (DC) ACE919CCRing lug connector Core balance CTsSepam series 40 Designation Reference QuantityType User-Machine Quantity Residual current sensor (diameter 120) CSH120of application Interface Residual current sensor (diameter 200) CSH200

S40 basic Interposing ring CT for residual current input CSH30advanced Core balance CT interface ACE990

S41 basic LPCT phase current sensorsadvanced Designation Reference Quantity

S42 basic LPCT phase current sensor CLP1advanced LPCT injection adapter ACE917

T40 basic Remote LPCT test plug CCA613advanced Software tools and documentation

T42 basic Designation Reference Quantityadvanced PC parameter setting and operation software kit

with CCA783 cordSFT2841 kit

M41 basicadvanced Notice d’utilisation Sepam série 20 PCRED301005FR

G40 basic Sepam series 20 user’s manual PCRED301005ENadvanced Notice d’utilisation Sepam série 40 PCRED301006FR

Working language Sepam series 40 user’s manual PCRED301006EN

English / French

English / Spanish

English / Local (1)

Type of phase current sensor1 A / 5 A CT

LPCT

Type of connectors and Screw-type connector

Ring lug connector

(1) Please consult us.

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A E

Documents

Catalogue Sepam 20_ 40