Voltaje Regulador Tapcon 240

Voltage Regulator TAPCON 240Operating Instructions BA 222

www.reinhausen.com

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Table of Contents

1 General ......................................................................................................................................................................................... 41.1 Safety instructions ....................................................................................................................................................... 4

1.2 Specified application .................................................................................................................................................. 4

1.3 Design .............................................................................................................................................................................. 5

1.4 Performance features of the TAPCON 240 basic regulator unit ................................................................. 5

2 Technical data ............................................................................................................................................................................ 6

3 Operation .................................................................................................................................................................................... 93.1 Description of the front panel ................................................................................................................................. 10

3.2 Input and output of data; functions ..................................................................................................................... 10

3.3 Basic screen display showing current measuring values .................................................................................. 10

3.4 Overview of the menu structure and navigation within the menu structure .......................................... 10

4 Parametering ............................................................................................................................................................................. 114.1 Normset ........................................................................................................................................................................... 114.2 Setting the parameters ............................................................................................................................................... 12

4.2.1 Regulating parameters ............................................................................................................................. 124.2.2 Limit values .................................................................................................................................................. 144.2.3 Line compensation ..................................................................................................................................... 16

4.2.3.1 Line-Drop Compensation (LDC) .......................................................................................... 174.2.3.2 Z-compensation ...................................................................................................................... 17

4.2.4 Crosschecking (Option) ............................................................................................................................. 18

4.3 Setting of configuration ............................................................................................................................................ 204.3.1 CT/VT data ..................................................................................................................................................... 204.3.2 General .......................................................................................................................................................... 224.3.3 Parallel operation settings ....................................................................................................................... 254.3.4 Configuration of analog input on the input card ........................................................................... 284.3.5 LED selection ................................................................................................................................................ 294.3.6 Configuration of measuring transducer function (option) ........................................................... 304.3.7 Configuration of measuring value storage function (option) ..................................................... 31

4.4 Menu information / measuring values .................................................................................................................. 324.4.1 Information .................................................................................................................................................. 324.4.2 Status ............................................................................................................................................................. 334.4.3 CAN Bus ......................................................................................................................................................... 344.4.4 Measuring values ........................................................................................................................................ 34

5 Digital remote position indication .................................................................................................................................... 355.1 Digital remote position indication through activation

with BCD signal (standard version) ........................................................................................................................ 35

5.2 Digital remote position indication through activation with analog signal (option) .............................. 36

5.3 Remote indication of tap position ......................................................................................................................... 36

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Table of Contents

NOTE

Data contained herein may differ in details from the equipment delivered. We reserve the right to make alterationswithout notice.

6 Short-term memory ................................................................................................................................................................ 36

7 Commissioning .......................................................................................................................................................................... 377.1 Installation ..................................................................................................................................................................... 37

7.2 Connection ..................................................................................................................................................................... 37

7.3 Easy setting of operating modes with Normset ................................................................................................. 37

7.4 Function checks, operational settings for individual operation .................................................................... 38

7.5 Function checks, operational settings during parallel operation .................................................................. 397.5.1 Parallel operation according to the principle of circulating reactive circuit ........................... 407.5.2 Parallel operation in accordance with the principle of

Master/Follower tap synchronisation ................................................................................................... 407.5.3 Setting the time delay for the message Parallel operation disturbed ....................................... 407.5.4 Tap direction turned setting .................................................................................................................... 40

8 Options to operations control system (SCADA) .......................................................................................................... 418.1 Serial interface .............................................................................................................................................................. 41

8.2 Memory submodule / measured value recorder ................................................................................................. 418.2.1 Setting the system date ........................................................................................................................... 428.2.2 Setting the system time ........................................................................................................................... 428.2.3 Setting the measurement units of the display ................................................................................. 438.2.4 Setting the write mode ............................................................................................................................ 438.2.5 Symbol explanation ................................................................................................................................... 438.2.6 Setting the time axis ................................................................................................................................. 448.2.7 Setting the voltage range ....................................................................................................................... 448.2.8 Setting the return time ............................................................................................................................ 458.2.9 Setting the return date ............................................................................................................................ 458.2.10 Setting the threshold value .................................................................................................................... 458.2.11 Setting the relative/absolute value ...................................................................................................... 468.2.12 Setting the main value memory intervals .......................................................................................... 468.2.13 Setting the event memory ...................................................................................................................... 468.2.14 Measured-value recorder display .......................................................................................................... 478.2.15 Peak memory display ................................................................................................................................ 47

8.3 TAPCON 240 with "long-term memory" ............................................................................................................. 47

9 Status messages and error messages on the display ................................................................................................ 48

10 Appendix ...................................................................................................................................................................................... 49

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1.1 Safety instructions

All personnel involved in installation, commissioning,maintenance or repair of this equipment must:

- be suitably qualified and

- strictly observe these operating instructions.

Improper operation or misuse can lead to

- serious or fatal injury,

- damage to the equipment and property of the user

and

- a reduction in the efficiency of the equipment.

Safety instructions in this manual are presented in threedifferent forms to emphasize important information.

WARNING

This information indicates particular danger to life andhealth. Disregarding such a warning can lead to serious orfatal injury.

CAUTION

This information indicates particular danger to the equip-ment or other property of the user. Serious or fatal injurycannot be excluded.

NOTE

This notes give important information on specific subjects.

CAUTION

Installation, electrical connection and commissioning ofthe electronic voltage regulator may only be carried outby qualified, skilled personnel and only in accordance withthese operating instructions.

It is the responsibility of the user to make sure that theelectronic voltage regulator is used for the specificapplication only. For safety reasons, any unauthorized andimproperly executed works, i.e. installation, modification,alteration of the equipment, electrical connection, orcommissioning of the equipment, are forbidden withoutfirst consulting MR!

The trouble-free operation of the drive, the on-load tapchanger, and the transformer may be put at risk.

1 General

1.2 Specified application

The electronic voltage regulator TAPCON 240 serves forautomatic control of transformers with a motor-driven on-load tap-changer. The motor-drive mechanism receives thecorresponding Raise or Lower control signals from thevoltage regulator. With these signals, the on-load tap-changer moves to the next position and the transformersvoltage value is adapted to the preset desired voltage level.

To allow individual adaptation of the control system to thevarious field service conditions encountered, influencingvariables such as time delay, bandwidth, and even line-dependent and load-dependent parameters can be pro-grammed for compensation of voltage-dependent and/orcurrent-dependent limits. As a special feature, the voltageregulator is also capable of controlling parallel transformeroperation.

WARNING

All relevant fire protection regulations must be strictlyobserved.

1 General

CAUTION

If the 19" mounting rack of the electronic equipment isinstalled in the motor-drive ED, make sure that the supplyand control lines leading to the motor-drive are directlydisconnected from the motor-drive prior to the lightningimpulse voltage test and the switching impulse voltage testof the transformer.

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1 General

1.3 Design

The individual components are mounted in a standardized19-inch rack. The front plates of the components are fixed tothe rack at the top and at the bottom. Electrical connectionis provided by plug connectors according to DIN 41 612. Thecomponents are connected to each other via data bus andseparate DC supply, making it very easy to retrofit the systemwith additional plug-in modules or extension modules at anylater date desired.

NONONONONOTETETETETE

When voltage regulation is effected by tapped transfor-mers and voltage regulators, it is assumed that a change ofthe tap position results in a significant voltage change.When generators feed the voltage level to be regulated,however, quite different conditions may result so that acorrect regulation of the voltage cannot be guaranteed. Insuch cases MR should be consulted as early as the planningstage.

1.4 Performance features of the TAPCON 240 basicregulator unit

The front panel of TAPCON 240 contains an LCD graphicdisplay, several LED lamps and several function keys andmenu keys.

The electronic voltage regulator is controlled by amicrocontroller (see appendix, block/connection diagram).Besides a voltage transformer and a current transformer itcontains optocoupler inputs with potential separation as wellas potential-free output relay contacts.

Apart from the usual well-known, versatile and individualsetting options for the MR control system, the TAPCON 240voltage regulator also offers the option of fast and easyparametering by introducing the innovative Normsetfunction.

The term Normset function stands for an automatismwhich considerably simplifies the configuration of a voltageregulator. If the desired voltage level is entered while theNormset function is active, the voltage regulator willexamine the given line/network conditions and proceed toperform an automatic adaptation of all further inputs(comprised in part of the pre-parametering and standardreference values) which used to be required for customaryregulators (also refer to the standard configuration).

The parameters of the regulator can be set by means of a PCvia the incorporated serial interface (RS232) integrated inthe front panel; the appropriate PC software will be furnishedby MR.

A load-dependent line-voltage drop, e.g. of a spur lineleading from the transformer to the load, can becompensated either by line simulation (Line DropCompensation) or by load-current dependent increase of thevoltage level (Z-Compensation).

Trouble-free operation is ensured by the regulators inherentundervoltage blocking, overcurrent blocking and overvoltagemonitoring.

As a standard, all TAPCON 240 voltage regulators areequipped with a short-term memory allowing the storage ofthe voltage levels and the positions of the on-load tap-changer.

The functions of the TAPCON 240 voltage regulator are justabout fully compatible with those of the earlier generationsof voltage regulators.

Parallel operation follows the principles of either minimumcirculating reactive current or synchronism control.

In standard cases, parallel control of two groups comprisedof up to 16 users total is possible without the need for asupplementary device due to the utilization of an internalbus system.

It is also possible to record the system topology by means ofa multiple busbar system and to implement it in the controlalgorithm. In that case, all transformers currently engaged inparallel operation will be automatically identified by theregulators. This option does not require a separate additionaldevice.

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2 Technical Data

Setting rangesSetting ranges Step width Standard factory settings

(other settings optionallypossible)

Desired voltage level 1 60 160 V*) 0.1 V 100 V(85 - 140 V)



Bandwidth 0.5 to 9 % 0.1 % 1 %

Delay time 1 1 to 600 s 1 s 40 s

Delay time 2 1 to 10 s 1 s 10 s

Switching pulse duration 0 to 10 s 1.5 s 1.5 s

LDC Ur = 0 to 25 V 0.1 V 0 VUx = 0 to 25 V 0.1 V 0 V

With optional Z Voltage rise 0 to 15 % ofcompensation selection desired voltage level 0.1 % 0 %

limitation 0 to 15 % of 0.1 % 0 %desired voltage level

Undervoltage blocking 60 to100 % 1 % 90 %of desired voltage level

Overvoltage detection 100 to 140 % 1 % 110 %of desired voltage level

with high-speed return control pulse signal 1.5 / 1.5 s(interruptible)

Overvoltage blocking 50 to 210 % 1 % 110 %

Voltage transformer 0 to 999,0 kV/100 V to 110 V 0 kV/100 V

Current transformer 100 to 10,000 A/5/1/0,2 A no presetting

Measuring circuit phase angle adjustablebetween U and I for1-phaseand 3-phase system according toCT/VT connection

Function monitoring 15 min. On

*) including max. possible limit values

2 Technical Data

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2 Technical Data

Inputs and outputs

Input relays

1x raise1x lower1x manual control mode1x automatic control mode1 x Master / Follower1x high-speed circuit-breaker ofvoltage limit supervisory control1x parallel operation group 11x parallel operation group 21x desired voltage level 21x desired voltage level 31x cam-operated contact frommotor drive

Voltage transformer 85 to 140 V, measuring range 60 ... 185 V,r.m.s. value 40 to 60 Hz, intrinsic consumption < 1 VA

Current transformer 0.2 / 1 / 5 A, 40 ... 60 Hz, r.m.s. valueintrinsic consumption < 1 VA,overload capacity 2 x In continuously, 40 x In/1 s

Measuring error Voltage measuring: < 0.3 % 40 ppm/CCurrent measuring: < 0.5 % 40 ppm/C

Serial 1x serial interface RS 232 (COM1 on the front plate) for parametering via PC

interfaces 1x CAN bus for parallel operation optional1x RS232 control system interface1x RS485

Power supply DC 18 to 72 V (see pragraph 7.2)AC, DC 93 to 265 VConsumption: approx. 25 VA

Control elements, display

Function keys Manual / automatic control modeRaise / lowerMenu keys

Display Monochromatic 128x128 dot display with graphics capacity

1 LED lamp (green) operation display1 LED lamp (red) each for signalling U, I>1 LED (yellow) for signalling parallel operation active1 LED lamp (green) for signalling Normset active status3 LED lamps (yellow) for random assignment by user1 LED lamp (green/red) for random assignment by user

Output relays and rating of relay contacts:

AC: 250 V 5ADC: 30 V 5 A; 110 V 0.4 A;220 V 0.3 A1x raise1x lower1x manual control mode1x automatic control mode1x status1x group interrupt U, I>1x function monitoring1x desired voltage level 21x desired voltage level 31x parallel operation active1x parallel operation disturbed

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Protective housing 19-inch module frame according to DIN 41 494 Part 5Dimensions: 483 x 133 x 178 mm (W x H x D)Degree of protection: IP 00 according to IEC 60529Weight: approx. 5 kgs

Temperature limits Admissible ambient temperature for operation: -25 C to + 70 CAdmissible ambient temperature for storage and transport: -30 C to +85 C

Tests

Electrical safety

Protection class 1 in accordance with IEC 60536Protection rating IP00 in accordance with IEC 60529Degree of soiling 2 in accordance with IEC report 664-1Overvoltage category III in accordance with IEC report 664-1

EN 61010-1 Safety provisions governing electrical measurement, control, regulation and laboratory equipment.Dielectric test with operating frequency of 2.5 kV/1 min

IEC 60255 Dielectric test with surge voltage, 5 kV, 1.2/50 s

Electromagnetic compatibility

IEC 61000-4-2 Interference immunity against electrostatic discharge with 6/8 kVIEC 61000-4-3 Interference immunity against HF fields with 10 V/m, 80 to 1000 MHzIEC 61000-4-4 Interference immunity against bursts with 2 kVIEC 61000-4-5 Interference immunity against surges with 2 kVIEC 61000-4-6 Interference immunity against HF on lines with 10 V, 150 kHz to 80 MHzIEC 61000-4-8 Interference immunity against magnetic fields with 30 mA/m, 50 Hz, continuousIEC 61000-4-11 Interference immunity against voltage drops with AC supply: 30 % / 0.5 period

60 % / 5 periods; with DC supply 100 % / 10 ms and 60 % / 100 ms

EN 61000-6-2 CE conformityEN 61000-6-4 CE conformity

Temperature and climate resistance

IEC 60068-2-1 Dry cold, -10 C / 20 hoursIEC 60068-2-2 Dry heat, +70 C / 16 hoursIEC 60068-2-3 Moist heat, constant, +40 C / 93 %/6 cyclesIEC 60068-2-30 Moist heat, cyclic (12 + 12 hours) + 55 C / 93 % / 6 cycles

2 Technical Data

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3 Operation

3 Operation

1 LED lamps2 Function keys for menu operation3 Selection of main menu4 Return to respective higher-order level5 Confirmation of value input / storage6 Changing of displays within a single level7 AUTO/automatic voltage control8 MANUAL/manual control9 Raise/Lower control10 Manual setting of display contrast

9

1

2

34567811

11 When the LED on key REMOTE lights up, only controlcommands on operations control system level areperformed (binary inputs of the voltage regulator).In this case keys , and are out of service.When the LED on key REMOTE is not lighting up, thevoltage regulator can be controlled by the Raise orLower key with the MANUAL mode activated .Optionally the voltage regulator can be automaticallycontrolled (LED on key AUTO lights up).

10

3.1 Description of the front panel

Generally, the keys located at the front panel fall into twodifferent basic groups.

Operating keys Function keys for menu guidance

The LEDs located in the front panels upper areaserve for signalling the following system statuses:

Operating status Overcurrent blocking Undervoltage blocking Overvoltage monitoring Parallel operation NORMSET 4 ea. randomly configurable LEDs

The signalling elements on the voltage regulating display andthe keys grouped around the display constitute a singlecomprehensive unit. Similar to the operation of bank tellermachines, all available selectable functions are inserted onthe screen in text or image form.

The key located right next to a particular entry serves toactivate the users command while a distinction has to bemade between the horizontal and vertical menu keys.

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3 Operation

3.2 Input and output of data; functions

The following instructions tell you how to call up the basicfunctions of the TAPCON 240 voltage regulator and how toreset parameters. In this context, particular emphasis isplaced on the level structure.

The voltage regulator has been equipped with a key lock toprotect against unintentional operation. For activation/deactivation, simultaneously press the ESC and F5 keys.

Please note that the voltage regulator must be switched tomanual before changing any settings.

3.3 Basic screen display showing current measuringvalues

The basic screen display on the monitor shows the desiredand actual voltage rates in V or kV, the system deviationrates, and the current tap-change positions. Conversion ofthe unit to V or kV is done either in the parameter displayDesired value 1/2/3" or in the configuration display Desiredvalue display kV.

NOTE

Please bear in mind that the correct display of the primaryvoltage depends on the correct input of the voltagetransformer data.

3.4 Overview of the menu structure and navigationwithin the menu structure

Starting from the status display, you will get to the mainwindow for parametering by pressing the menu key, whichbranches out into main groups and sub-groups, all the wayto the individual parameters.

See foldout sheet in the appendix of the operating instruc-tions (short reference).

NOTE

If the equipment has not input for control of LOCAL /REMOTE (can however either be parameterized by theuser on the display or ordered from MR), toggling betweenLOCAL and REMOTE is possible.If the equipment has an input for control of LOCAL /REMOTE, toggling between LOCAL and REMOTE is notpossible. In this case the condition given by the controlinputs is valid.The equipment can either be controlled via the front panelor by external control (inputs or operations control system)not from both sources together.

1

2

3

4

5

6

7

1 - Deviation from desired voltage level2 - Time bar3 - Display designation4 - Display of the actual voltage in V or kV5 - Display of desired voltage level in V or kV6 - Measuring value display7 - Tap-changer operating position

In case of a special occurrence or in case of a setting, thelatter will be displayed as status values in the topmost line ofthe basic display.

The following occurrences will cause information to bedisplayed: Undervoltage Motor protective switch Overvoltage Blocking Overcurrent Circulating reactive current Master Follower Par. Error

The measuring value display can be adjusted individually.Operating the keys allows the user to view the followingmenu values instead of the deviation (factory setting):

Current Phase angle Apparent power Reactive power Active power

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4 Parametering

Setting the desired voltage level

Menu Normset Desired voltage level 1

The setting of the desired voltagelevel refers either to the secondaryor to the primary voltage side ofthe voltage transformer connectedto the TAPCON 240

The secondary voltage is displayedin Volt (V), the primary voltage inkilovolt (kV).

This display requires the correct input of the CT/VT data inthe following two menu windows.

Setting range: 60 ... 160 V / 0.1 ... 999.9 kV (85 - 140 V)

4.1 Normset

Activating the Normset function

Menu Normset Normset ActivationThe term Normset function stands for an automatism whichconsiderably simplifies the parametering of a voltage regula-tor. The only thing left to do for the operator when commis-sioning during the Normset mode is to enter the desiredvoltage level and, if required, the CT/VT values and sub-sequently take the device into operation.

All other parameters required for simple voltage regulationwill be preassigned at the factory(e. g. bandwidth of 1 %).Should the actual value exit the setbandwidth, an appropriate switch-ing operation will be initiated atthe on-load tap-changer.The voltage change ensuing fromthe switching operation correspondsto the transformers tap voltage and

is checked for plausibility by the regulator, using the presetbandwidth. The bandwidth value is then corrected and opti-mised in accordance with the results gleaned from this check.If the next system deviation occurs, the new bandwidth willbe used as basis, which will be rechecked and readjusted, ifnecessary.Should the marginal conditions change, the regulator willagain optimise itself automatically.It goes without saying that mains-specific and/or customer-specific settings such as LDC, parallel operation or positiondisplay can still be done in the standard mode and will betaken into consideration during determination of theoptimum parameters.

4 Parametering

Setting the primary voltage

Menu Normset Primary voltage

Setting the secondary voltage

Menu Normset Secondary voltage

Setting range: 0 ... 999.9 kV

Setting range: 100 ... 110 V


The parameters for undervoltage/overvoltage and over-current are not set by the Normset function.If required, these parameters have to be entered manuallyduring commissioning/initiation.The Normset function is deactivated during paralleloperation.

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4 Parametering

Correct input of the voltage transformer data is a prerequis-ite for proper display of the desired voltage level 1, 2 or 3 orof the actual voltage level in kV.

The desired voltage levels 2 or 3 will be activated in thepresence of a continuous signal at the I0-X1/17 or I0-X1/16input. If a signal is present at both inputs, desired voltagelevel 2 will be active.

Setting range: 60 ... 160 V*) (85 -140 V)

Setting the Bandwidth

Menu Parameter Regulating parameter

Bandwidth

4.2.1 Regulating parameters

This sub-group comprises allparameters required for theregulating function.

4.2 Setting the parameters

B (%) = Regulating range (%) = Regulating range (%) No. of steps No. of positions -1

For increased regulating sensitivity it is also possible to setlower values, although it is highly unadvisable to go beneath60% of the computed value. If the measuring-circuit voltageis altered far enough during operation to exceed the setbandwidth, an output pulse will be generated according tothe set delay time.

This is shown by a consecutive filling-in of the time bar inthe display. Simultaneously, the time left over until emissionof the output pulse is displayed.

If no compensation occurs for more than 15 min, thefunction monitoring relay will respond (see connectiondiagram). The relay will not be reset until the deviation fallsshort of the set limit.

Setting range: 0.5 ... 9%

You may set the bandwidth (B)from 0.5 % to 9 % in steps of0.01 %. The transformers stepvoltage must be known to ensureproper setting of this value.

Setting the desired voltage level 1 / 2 / 3


Desired voltage level 1 / 2 / 3

The setting of the desired voltagelevel refers either to the secon-dary or to the primary voltageside of the voltage transformerconnected to the TAPCON 240.

The secondary voltage is displayedin Volt (V), the primary voltage inkilovolt (kV).

NOTE

Please bear in mind that the correct display of the primaryvoltage depends on the correct input of the voltage trans-former data (see chapter on configuration - CT/VT data).

This chapter describes all settings required in regulatingfunctions and monitoring tasks.

To make specific parameters easier to find, sub-groups werecreated which contain functionally related individualparameters.

*) including max. possible limit values

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4 Parametering

U/E - voltage change U in % of the desired value, in relation to the set bandwidth in % of the desired voltagelevel.

U (%)E (%)

Setting the delay time T1 or T2 (DELAY TIME 1/DELAY TIME 2)


Delay time T1

The delay time starts as soon as theregulating deviation exceeds the setbandwidth limits above or below.

At the same time the time bargraph fills in from bottom to topand the time left until emission ofthe control pulse is displayed. If theregulating deviation is still present

after the delay time has elapsed, an output pulse is emitted.If the deviation returns to within bandwidth limits within thedelay time, then the current delay time will, starting fromthe time already elapsed, be deleted against Zero. While thisis going on, the absolute time display will be disappearingfrom the display. At the same time, the time bar graph isdisplayed as a slashed line permanently decreasing in size.

If the regulating deviation again exceeds the set bandwidthlimits during deletion, the time delay will, starting from theremaining time, be started anew.

Setting range: 1 ... 600s


T1 Regulating behavior

The delay time T1 can be set withlinear or integral response.

If a delay time with integralresponse Integral is set, the delaytime is automatically shortenedaccording to the relation of actualsystem deviation to set bandwidth(B), down to a minimum of 1s.

T1 integral

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4 Parametering

Menu Parameter Regulating parameterT2 Activation

The delay time T2 will becomeeffective only if more than one tapchange is required for reduction ofthe control deviation below thebandwidth limit.

The first output pulse is emittedafter the set delay time T1, whereasthe other pulses required forcompensation will be emitted afterthe set delay time T2.

Menu Parameter Regulating parameterT2 Delay time

Setting range: 1 ... 10 s


During parallel operation, the delay time T2 must not beset lower than 8 s!

Menu Parameter Limit valuesAbsolute limit values

Off: Percentage values

On: Absolute values

Setting the undervoltage blocking (U

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4 Parametering

Setting the overvoltage detection (U>) with automaticreturn control

In the event of an overvoltage detection response, the tap-changer is operated by periodic pulses to the motor-driveuntil the overvoltage falls below the response threshold.The motor-drive is controlled by periodic pulses of 1.5 sthrough the Lower output relay (can be set in the Confi-guration menu) while the set delay time remains inactiveduring this operation. At the same time the U> LED lampresponds and a signalling relay is energized (contacts I0-X1/18, I0-X1/19, I0-X1/20), as long as overvoltage is present.

If the voltage regulator regulates towards a higher voltagethan the set limit U> due to an unfavourable parametering(e.g. too high LDC settings), it is prevented from exceedingthe limit. An unadjustable operating state is signalled by thesignalling relay for function monitoring, after 15 minutes.

Menu Parameter Limit valuesU> Overvoltage (%)

Setting of the limiting value for overvoltage blocking aspercentage value of the set desired voltage level.

Setting the limiting value for overvoltage blocking asabsolute value.

When converting the display to kV (F3 key), this value can beset in reference to the primary CT/VT voltage, whereas if thedisplay is set to V this value will be in reference to thesecondary voltage.

Menu Parameter Limit valuesU> Overvoltage (V)

Setting range: 100 ...140%

Setting the overcurrent blocking (I>)

Overcurrent blocking prevents tap-change operations in thepresence of excessive overcurrent.

The voltage regulator output pulses are blocked and the I>LED lamp responds when the measured current exceeds theset blocking value.

At the same time the corresponding signalling relay isenergized and remains energized (contacts I0-X1/18, I0-X1/19, I0-X1/20).

Menu Parameter Limit valuesOvercurrent l>

Press the F3 key to set the input ofpercentage values to absolutevalues. The values will in both casesrefer to the rated current of thecurrent transformer.

Setting the limiting values for undervoltage blocking asabsolute value.

When converting the display to kV (F3 key), this value can beset in reference to the primary CT/VT voltage, whereas if thedisplay is set to V this value will be in reference to thesecondary voltage.

Menu Parameter Limit valuesU< Undervoltage (V)

Setting range: 60 V ... 160 V

... kVSetting range: 100 V ... 160 V

... kV

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4 Parametering

Function monitoring

The message function monitoring will be emitted if aregulating deviation lasting 15 min is detected by theregulator which is not eventually compensated. Use thisparameter to suppress the message (= Off) to avoid thegeneration of an error message while the transformer isswitched off and while at the same time the message has notbeen suppressed at U< 30 V (see the following paragraph).

Menu Parameter Limit valuesFunction monitoring

4.2.3 Line compensation

The line drop compensation, i.e. the inclusion of the voltagedrop of a line connected to the transformer in the regulatingprocess, can be accomplished in two different ways.

Comparison between LDC and Z-Compensation

Application of the vectorial compensation (LDC):

- requires knowledge of the exact line data

- permits an accurate compensation of the line voltage drops

Application of the Z-compensation:

- can be used in the case of minor shifts of the phase angle - can be also used in meshed network applications.


For the correct setting of the LDC it is necessary to calcu-late the resistive and inductive line voltage drop in relationto the secondary side of the voltage transformer in V andthe correct setting of the existing measuring configura-tion according to paragraph 4.3.1.

Suppressing the undervoltage message

Suppress the message Undervoltage U< to avoid the genera-tion of an error message while the transformer is switchedoff (= measuring voltage U< 30 V).

Menu Parameter Limit valuesU< even under 30 V

Delayed response of the message Undervoltage U Configuration -> Continue -> Analog inputsUpper value

4 Parametering

NOTE

The number and the assignment of the analog inputs maydiffer depending on how the hardware is configured.Usually the first analog input is located on the first analoginput card AD and the second on the expansion plug-incard AD1. A third analog input may be placed on anadditional AD card.

With the previous hardware versions the analog inputswere located on the UC card(s).

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LED4 may light up either in red" or in green", depending onthe type of activation. If both inputs are activatedsimultaneously, the mixed shade yellow" will be created.

Menu Configuration Continue LED selectionLED4 red / green

4.3.6 Configuration of measuring transducerfunction (option)

Using the signal converter module, it is possible to obtaintwo or four measured values as analog values in the ranges 20 mA, 10 mA, 10 V, 1 mA, depending on the con-figuration and model of the signal transformer module.The following values are available: Voltage 1 Voltage 2 (optional; a second measuring input must be

present) Current Active power Apparent power Reactive power Tap position Desired voltage value

Since the configuration is performed at the plant, please besure to specify in your order the desired measured values andtype of analog output!

If the analog outputs desired by the customer have notalready been set at the factory, this can be done with the aidof the following description of measuring transducer 1.Follow the same principle for the settings for measuringtransducers 2 to 4.

Lower output value for measuring transducer 1

Assignment of a measurable physical quantity

Menu Configuration 2x Continue Measuringtransducer 1/2Output 1 low

Possible settings:

0 mA, -1 mA, -4 mA, -10 mA,-20 mA

0 V, -10 V

Upper output value for measuring transducer 1

Assignment of a measurable physical quantity

Menu Configuration 2x Continue Measuringtransducer 1/2Output 1 top

Possible settings:

1 mA, 10 mA, 20 mA

10 V

Measuring transducer, value of output 1

This parameter is used for assigning the measuring quantityto be transmitted to the output of measuring transducer 1.

Menu Configuration 2x Continue Measuringtransducer 1/2Output 1 measured value

Possible settings:

U1, I1, step, desired voltage level

Off: no assignment

4 Parametering

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Measuring transducer, lower value of output 1

This parameter is used for assigning an absolute value to thelower limit of measuring transducer 1.

Menu Configuration 2x Continue Measuringtransducer 1/2Output 1 lower value

Measuring transducer, upper value of output 1

This parameter is used for assigning an absolute value to theupper limit of measuring transducer 1.

Menu Configuration 2x Continue Measuringtransducer 1/2Output 1 upper value

4.3.7 Configuration of measuring value storagefunction (option)

Use this sub-group for setting the measuring value memory(event memory, write function), see chapter 8.2.

Undervoltage threshold

Input of undervoltage threshold in percent (in reference tothe set desired voltage level)

If a shortfall of the preset threshold has occurred, measuringvalues with high resolution will be stored for the duration ofthe shortfall.

Menu Configuration 2x Continue StorageU< threshold (%)

Input of undervoltage threshold in absolute values

Input in V relates to secondary CT/VT voltage whereas inputin kV relates to primary voltage.

If a shortfall of the preset threshold has occurred, all 300msmeasuring values with high resolution will be stored for theduration of the shortfall.

Menu Configuration 2x Continue StorageU< memory (V)

4 Parametering

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Overvoltage threshold

Input of overvoltage threshold in percent (in reference to thepreset desired voltage level)

If an excess of the preset threshold has occurred, measuringvalues with high resolution will be stored for the duration ofthe excess.

Menu Configuration 2x Continue StorageU> threshold (%)

Input of overvoltage threshold in absolute values

Input in V relates to secondary CT/VT voltage whereas inputin kV relates to primary voltage.

If a shortfall of the preset threshold has occurred, measuringvalues with high resolution will be stored for the duration ofthe shortfall.

Menu Configuration 2x Continue StorageU> memory (V)

4.4 Information menu / measuring values

Consult this menu point to find information on the voltageregulator and the measuring values.

Sub-groups with related information were assembled tofacilitate the search.

4.4.1 Information

Consult this sub-group to retrieve information on thevoltage regulator.

Line 1 : Type designation

Line 2 and 3: Software version andits date of issue

Line 4 to the left: EEPROM sizeLine 4 to the right: Internalregulator ID numberLine 5 and 6: Size of the built-inRAM and flash memory

An LED function test can beperformed in accordance with thedata indicated.

4 Parametering


This test involves only the LED itself, not the functionbehind it!

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Display of the regulator numberfor parallel operation (= CANaddress) and of the number of thevoltage regulators currentlyengaged in parallel operation.

Display indicating whether theparameter sets were properlystored following a regulator restartand/or whether all parameterswere properly stored following therecording of a parameter set.

If a parameter was not properlystored, it will be indicated asincorrectly stored and can be resetto a standard factory setting bypressing the F1 key.

To reset all parameters to standard settings, press the F3 andF4 keys.

4 Parametering

4.4.2 Status.

Display of pending messages, e.g.overvoltage/undervoltage or paralleloperation disturbance.

Status display of the inputs at theI/O module

0= no presence of signal at input

1= presence of signal at input

Status display of the inputs at theUC1 module



Status display of the inputs at theUC2 module




This operation will cause all values to be reset to standardlevel, including any values already adapted and individuallyset earlier!

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4 Parametering

4.4.3 CAN Bus.

Data on the CAN Bus

Line configuration:No. AAA: BBB CCC DDD EEE

meaning:

AAA: CAN Adress of theregulator

BBB: Voltage in V

CCC: Active current in %

DDD: Reactive current in %

EEE: Tap position

Press F1 key to call up the otherinformation.

F: Group input 1

G: Group input 2

H: Circulating reactive currentparallel operation selected

I: Tap synchronisation Masterselected

J: Tap synchronisation Followerselected

K: Tap synchronisation Autoselected

L: Regulator intends to block thegroup due to a disturbance inparallel operation.

RTC= Real Time Clock

When the voltage regulator isstarted up for the first time acounter is set in motion whichcontinues to run even while theregulator is inactive. For the visualdisplay of measuring values, all ofthe counter's times will be over-written by the PC's times.

4.4.4 Measuring values.

Storage of peak value

Display of the minimum andmaximum voltages occurred sincethe last reset (drag hand functionfor voltage and tap position)

Storage of measuring values

The voltage regulator is optionallyavailable with a long-term storagemodule.

The relevant storage informationwill be displayed in this menuwindow.

Indication of measured values

Line 1: Voltage at the firstmeasuring input

Line 2: Current on first measuringinput

Line 3: Phase position U1 to I1

Line 4: Voltage on the secondmeasuring input

Lines 5 and 6: Active and reactivecurrent on the first measuringinput

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5 Digital remote position indication

Transmission of the BCD signal between motor-driveunit and TAPCON 240 fr 1...19 operating positions(example)

Contact series

Diode matrix

Transmissionline

TAPCON 240

The TAPCON 240 voltage regulator is equipped with a digitalremote position indication. The display can be selected/activated either with a BCD signal (standard) or optionallywith an analog signal (option)

5.1 Digital remote position indication throughactivation with BCD signal (standardversion)

Prerequisite for a digital position indication is the conversionand transmission of the position indicating signal into BCDcode. For this purpose an N/O contact range connected to adiode matrix and the corresponding transmission lines bet-ween motor-drive unit and voltage regulator are required(see next fig.).

5 Digital remote position indication

int 829

Operating- BCD signal

position1 2 4 8 10

1 l

2 l

3 l l

4 l

5 l l

6 l l

7 l l l

8 l

9 l l

10 l

11 l l

12 l l

13 l l l

14 l l

15 l l l

16 l l l

17 l l l l

18 l l

19 l l l

Operating position table

Conversion of the numerical operating positions 1 to 19 intothe equivalent BCD signal (example)

The linking function of the diode matrix assigns the relatedparallel BCD signal to each on-load tap-changer operatingposition which is simulated by the n/o contact range of themotor drive unit (see table on operating positions).

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6 Short-term memory

5 Digital remote position indication6 Short-term memory

5.2 Digital remote position indication throughactivation with analog signal (option)

Upon request, the TAPCON 240 voltage regulator isavailable with an analog control/activation of the remoteposition indication. This option requires an analog AD inputcard.

The following analog values can be processed:

0 10 V 0 2 kOhm 0(4) 20 mA

If all of the following data are indicated in the order, thevoltage regulator will be delivered in fully and appropriatelyconfigured condition.

Information pertaining to position indication (examples):

0(4) mA =^ Pos. 1 20 mA =^ Pos. 19

0 Ohm =^ Pos. 1 180 Ohm =^ Pos.19

0 V =^ Pos. 1 10 V =^ Pos. 19

Should it become necessary to change the values previouslypreset in the factory in accordance with customer specifi-cations, this can be effected via the displays "analog input 1",lower/upper limiting value and "analog input 1", lower/uppervalue.

Upon customer request, the analog input of the AD card ispreset in the factory to 0-20 mA, 0-10 mA, 0-1 mA or0-10 V. It should be mentioned that the above indicatedcurrent and voltage ranges can be in the positive or in thenegative range.

If e. g. the position of an on-load tap-changer is signalled viaa 4-20mA signal, it will be necessary to define the lower limitof 4 mA with 20 % (of 20 mA).

This assignment allows a fine-tuning of the positionindication (see chapter 4.3.4 Configuration of analog inputon the analog AD input card).

5.3 Remote indication of tap position

Optionally, the tap position of the voltage regulator can beindicated either by way of BCD signal via potentialfreecontacts or as analog signal (e. g. 0(4) 20 mA, 0 10 V,- 5 5 mA).

As a standard, the TAPCON 240 voltage regulator isequipped with a short-term memory allowing the storage ofa limited number of voltage and tap positions.

Given a high-resolution scanning rate it is possible to recordthe history of the voltage position and on-load tap-changerpositions for the last 6 minutes.

The voltage curve and change of the tap positions can bevisualized via the visual display software included in thedelivery.

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7 Commisioning

7 Commissioning

7.1 Installation

The standardized module frame of the voltage regulator (seeAppendix) is suitable for installation into a 19-inch controlcabinet. The swing frame design is recommended as it offerseasier access to the terminal at the back.

7.2 Connection

The voltage regulator is to be connected in accordance withthe wiring diagram (see Appendix).

When connecting the equipment, please pay attention to:

the correct phase angle of the secondary terminals ofcurrent transformer and potential transformer

correct connection of the output relays to the motor-drive unit

correct connection to earth of the housing.

In general, the voltage regulator is fed by an auxiliary vol-tage of 93 ... 265 AC/DC.

The TAPCON 240 is optionally available with a supply inputof 18 - 72 VDC.

NOTE

The TAPCON 240 was developed in compliance with therelevant EMC standards. The following instructions must beobserved to ensure preservation of the EMC properties:

Ensure correct connection to ground by means of theground screw attached to the housing.

Be sure to use only shielded cables for the data linksfrom the TAPCON 240 to other equipment:The screenings must be connected to ground via thecable clamps at the housing which are included in thedelivery (see illustration to the right: section of CPUcard, bilateral grounding).

WARNING

Take care to properly connect the voltage regulator and thehousing ground. Danger to life!

7.3 Easy setting of operating modes with Normset

Prior to commissioning/initiation, be sure to check the entireswitch configuration and the measuring and operating vol-tage. To assess the working mode of the voltage regulator,the use of a registering device to record the regulator vol-tage (actual value) is highly recommended.

The related transformer should be subject to normal load.

a) Select the MANUAL operating mode at TAPCON 240b) Select the NORMSET function as indicated under 4.1c) Set the desired voltage level 1

If you do not require a voltage display of the primary voltagein kV you may now proceed to initiate the regulator byoperating the AUTO function key.

If you do require a voltage display in kV, however, pleaseproceed as follows:

d) Set the rated CT/VT voltage and the rated current(see chapter 4.3.1 CT/VT data)

e) Set the display to kV, commission the regulator bypressing function key AUTO.

NOTE

The standard interface X8 has no function. On request,the IEC protocol can be connected via X8. The connection of a PC via the visualization software must be implementedwith the RS 232 interface on the front plate.

TAPCON 240

TC3-CPU.PIC

Ground interface cable shieldings here!

> >

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7 Commisioning

7.4 Function checks, operational settings forindividual operation

Prior to commissioning/initiation, be sure to check the entireswitch configuration and the measuring and operatingvoltage. To assess the working mode of the voltage regulator,the use of a registering device to record the CT/VT voltage(actual value) is highly recommended.

The related transformer should be subject to normal load.

a) Select the MANUAL operating mode at TAPCON 240.

b) Set the transformation ratios of the CT/VT as specifiedunder paragraph 4.3.1, as well as the measuring circuit.

c) Let the measured actual voltage (= voltage from thevoltage transformer) be indicated on the display of thevoltage regulator.

d) Let the current, power, and phase angle values beindicated on the display and compare these values withthose from possibly existing service measuringinstruments. If wrong signs are indicated, reverse thepolarity of the current or voltage transformer.

Please note that the factory presetting for the currenttransformer is 0 Ampere! To ensure proper display of thecorrect operating values, please be sure to enter theprimary rated transformer current in the menuConfiguration - CT/VT data - primary current.

e) Set the desired voltage level. By manual control of themotor-drive, bring the tap-changer to the serviceposition so that the desired voltage level is obtained.

f) Set the desired voltage level U DESIRED to this value.

g) Set the bandwidth to 1.0 %. In most cases the voltageregulator is now in a balanced state (no presignal).Otherwise change the desired voltage level in steps of0.1 V until a balanced state is reached.

h) Set the bandwidth in dependence of the step voltage(see paragraph 4.2.1).

i) Set the delay time T1 to 20s linear as per paragraph 4.2.1;by manual control, move the tap-changer towards Raiseby one step. Set the mode of operation to AUTO.The time bar fills up from bottom to top while the time issimultaneously displayed above the time bar until activa-tion of the on-load tap-changer. After a period of 20 sthe voltage regulator must control the on-load tap-changer back to its previous service position.

At that point the bar graph display moves back into thenormal position.

Set the mode of operation to MANUAL. Repeat thecontrol procedure towards Lower.

Set the operating delay time T2 to 10 s. Set the mode ofoperation to MANUAL. By manual control, move thetap-changer towards Raise by two steps.

Set the mode of operation to AUTO. After a period of20 s the voltage regulator must automatically control theon-load tap-changer back to its previous service positionby one step and after further 10 s by another step.

Set the delay times T1 and T2 to the desired value. If T2 isnot utilized, the OFF setting will be required.

When putting the transformer into service, it isrecommended to set the delay time T1 provisionally to100 s. Depending on the existing operating conditions,you may want to determine the definitive setting onlyafter some time of observation. For this purpose it isrecommended to register the variation of the actualvoltage and the number of tap change operations on aday-to-day basis. If an inverse response of the voltageregulator is desired, set an integral time response for thedelay time 1. In this case the delay time is automaticallyshortened inversely proportional to the deviation.

k) Set the response threshold for undervoltage blocking U 130V, so that the actual voltage now corresponds to the setpercentage of the response threshold for the blockingvalue. Setting limit of Z-compensation = 15 %. Set themode of operation switch to AUTO. The output relayRaise must not issue a control command. After approx.10 s the signalling relay U -). LED U< willnow respond. Upon completion of this function test youmay now set the desired response threshold for under-voltage blocking.

l) Set the response threshold for overvoltage detection U>to 115 %. Set the mode of operation to MANUAL, e. g.110 V to 110 V / 1.15 95 V so that the actual voltagenow corresponds to the set percentage of the responsethreshold for overvoltage detection. The signallingcontact (IO-X1/18 and IO-X1/19) opens. LED U> will nowrespond.Set the mode of operation to AUTO. The output relayLower must issue periodic control commands at 1.5 sintervals.

Now set the desired response threshold for overvoltagedetection to the initially desired voltage level.

m) Set the response threshold for overcurrent blocking I>. Afunction check is not necessary.

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7 Commisioning

7.5 Function checks, operational settings duringparallel operation(see chapter 4.3.3 Parallel operation settings)

NOTE

The prerequisite for the proper functioning of paralleloperation is the commissioning of the voltage regulatorsfor individual operation.

The current transformer inputs must be connected and theCT/VT configuration must be parameterised correctly.

The voltage regulators must be set to identical operatingparameters for the desired voltage, bandwidth, time delay T1,and line compensation, if applicable (LDC or Z Compensation,respectively).

In all cases, set STABILITY to 0 % and BANDWIDTHTHRESHOLD to 20 %.

During parallel operation, time delay 2 must never be setbelow 8 s!All settings must be performed in the Manual operatingmode.Each regulator must be assigned an address of its own onthe CAN bus (Menu CAN address).

n) Setting the load drop LDC (as per section 4.2.3.1, the basicdisplay with the deviation from the desired voltage levelis required for this setting).Set the mode of operation to MANUAL.Settings for Ux = Ur = O (deviation from desired voltagelevel > 0).Setting of Ur = 20 V, Ux = O V (deviation from desiredvoltage level > )Setting of UR = 20 V, Ux = O V (deviation from desiredvoltage level >+) (during this function check theminimum load current of 10 % of the rated current ofthe CT/VT must flow).

If the bar graph display moves in the opposite direction,change the polarity of the current transformer.

The actually desired load drop can be set upon comple-tion of the above settings.

Set the mode of operation to AUTO.

Check if the setting is correct by observing the voltage atthe line end during service and with different loads.When the setting is correct the voltage at the line endwill remain constant.

o) Setting of Z-Compensation (as per section 4.2.3.2) as analternative to LDC.

Set the mode of operation to MANUAL.

Set the voltage rise to 0, the voltage regulator is in abalanced state.

Setting Z-compensation limit = 15 %.

Setting voltage increase = 15 % (deviation from desiredvoltage level -> - during this function check the mini-mum load current of 10 % of the rated current of theCT/VT must flow).

Set the mode of operation to AUTO. Check if the settingis correct by observing the stability of a certain point inthe network with different loads. When the setting iscorrect the voltage at this point will remain constant.

p) Set the DESIRED VOLTAGE LEVEL 2 to the desired value(refer to paragraph 4.2.1). Set the mode of operation toMANUAL and connect L+ to IO-X1/16. The bar graphdisplay must move in the direction of Lower or Higheraccording to the set value for Desired Voltage Level 2,and the signal relay for DESIRED VOLTAGE LEVEL 2 willrespond (contact IO-X1/25 and IO-X1/26).

Please proceed in the same manner for DESIRED VOLTAGELEVEL 3 by connecting L+ to the IO-X1/17 signalling relayfor DESIRED VOLTAGE LEVEL 3 (contact IO-X1/23 andIO-X1/24). Set mode of operation to AUTO.

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7 Commisioning

7.5.1 Parallel operation according to the principle ofcirculating reactive circuit

Setting the interference variable (Stability)

Individually set both transformers to identical voltage withthe tap-changers so that both voltage regulators are in abalanced state (bar graph display in normal position, theindication of U % must be as low as possible, i.e. lowerthan the preset bandwidth U max).Now switch the transformers to parallel operation andenable parallel control. The voltage regulators must continueto remain in a balanced state, the LED lamp paralleloperation on the front panel is lighting up.

Raise one of the two transformers by one voltage step andlower the other of the two transformers by one voltage step.Both regulators must continue to remain in a balanced state.

Upon modification of the setting value STABILITY, the valueof the efficiency will change in the last line of the help text.Now keep adjusting the stability until the display of theefficiency exceeds the preset value for the bandwidth byapprox. 0.2 to 0.3%. Now set this value at all voltageregulators engaged in parallel operation.

Select the Auto operating mode for both voltage regula-tors. Both voltage regulators must control the tap-changersback into their previous service positions.

If the previous service position cannot be achieved that way,the STABILITY setting needs to be increased.

If the tap-changers are regulating out of sync (pumping),this setting needs to be reduced.

Setting the circulating reactive current monitoring(BANDWIDTH THRESHOLD)

Switch over one of the two voltage regulators to theManual operating mode. Using the manual control, theassociated motor-drive must now be reset to Raise by themaximum admissible difference of the service positionsbetween the parallel operating transformers (e.g. by 1 ... 2steps).

Starting with the preset value of 20 %, reset the bandwidththreshold towards a lower value in small steps until messageparallel operation disturbed appears (please wait 2 - 3sbetween the individual steps).

The bandwidth threshold of the circulating reactive currentmonitoring is reached as soon as the LED lamp lights up. Allvoltage regulators will block all further regulating actionsand after 30s (time can be adjusted) the signalling relay willrespond (connection UC-X1/1 and UC-X1/2).

Now reset the BANDWIDTH THRESHOLD again towards ahigher value until the message Parallel operation disturbeddisappears.

Again switch the voltage regulator back to the AUTOoperating mode. The motor drive will be automaticallycontrolled back to the original service position.

Use the value established for the BANDWIDTH THRESHOLD toset it for all of the other regulators.

Disturbances during parallel operation

If one or all of the regulators signal Parallel operationdisturbed even though the control inputs are properlyconnected for all regulators, the following causes may bepresent:

Interruption of the data communication between theregulators. Check the data lead in that respect

The second regulator is not functional Different methods of parallel operation were selected The bandwidth threshold of the circulating reactive

current was exceeded Incorrect regulator addressing

The regulators will block under any of the above conditions.

7.5.2 Parallel operation in accordance with theprinciple of Master/Follower tapsynchronisation

Select the corresponding method and determine which oneof the regulators will assume master function and which ofthe regulators will assume follower function (see chapter4.3.3 Parallel operation settings).

7.5.3 Setting the time delay for the messageParallel operation disturbed(see chapter 4.3.3 Parallel operation settings)

7.5.4 Tap direction turned setting(see chapter 4.3.3 Parallel operation settings)

Since a comparison of the tap positions of the transformersjointly engaged in parallel operation is performed duringparallel operation in accordance with the principle ofMaster/Follower tap synchronisation, it is imperative tomaintain identical position titles for all these transformers,and to ensure that the Higher and Lower signals willeffect identical voltage changes in all the transformers.

If this is not the case, i.e. if the phenomenon appears thatthe follower regulator(s) switch(es) in the opposite directionof the master regulator's tapping direction, proceed bychanging the setting of this parameter from standard toturned.

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8 Options

8 Options to operations controlsystem (SCADA)

The measured-value recorder is basically divided into theaverage value memory and the event memory. With theaverage value memory, all measured and computed valuesare averaged with an average value interval which can be setby the user in steps between 1 s and 40 s, and then stored.With the event memory, the highest resolution of the data isalways stored without previous averaging. The user canspecify how much of the total memory (8 MB hardware) willbe exclusively available to the event memory.

The measured value recorder is equipped with a so-calledevent trigger which triggers an event based on the adjustableupper and/or lower overvoltage limit value. The data ob-tained in this way are stored in the event memory of themeasured value memory.

To achieve better evaluation of limit value violation (upperand lower limit), the time period fo the measured andcomputed values also includes the last ten seconds prior tothe actual limit value violations. The storage timeframe isrestricted to a maximum of five minutes per event.

NOTE

The event memory only contains the time progressions ofthe measured and calculated values while the event isqueued, while the average value memory contains all data.

When the event memory is full, the oldest data record isoverwritten by the new values. Information on the currentcontents of the event memory can be called via the Infopages on the voltage regulator.NOTE

Calculation of the stated values is based on the acquiredmeasured values on the one hand, and on the other hand,on the set configuration values as well as the measuringcircuit, the primary current and the CT/VT data of primaryand secondary side.

Correct calculation is only possible when the configurationdata have been entered completely and correctly.

8.1 Serial interface

Optionally, the TAPCON 240 can be equipped with a serialinterface, either at the time of delivery or at a later date, asrequired.

The following standardised protocols are available for thevoltage regulator:

IEC 60870-5-101 IEC 60870-5-103ABB SPA-Bus Siemens LSADNP 3.0 Modbus ASCIIThe related descriptions and other protocols are availableupon request.

8.2 Memory submodule / measured value recorder

This additional module allows the storage of the followingmeasuring data for a certain period of time and evaluationof these data via the visual display software included in thedelivery. For details and explanations of hardware andvisualisation software see the related operating instructions.

Direct measuring values: Tap changer positionsVoltageActive currentReactive current

Computed measuring values: Active powerReactive powerApparent powerPower factor

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The measured-value recorder records the time behaviourexhibited by the effective voltage value. In addition, the timebehaviour of the tap positions is displayed also, to permit aninitial controlled system analysis. The TAPCON 240 alsoallows a graphic display of the voltage curve. This combineddisplay of voltage and tap position is made possible by thevisualization software included in the delivery.

Navigation keys:

Arrow left

Arrow right

Enter

ESC

Menu

For altering the data, switch the instrument over to themanual duty mode!

Store any setting alterations by pressing the Enter, F1,or F2 keys.

Press the ESC key to exit the set-up menu or to advanceto the next higher menu level without data storage.

All units set in start screen will be transmitted to thefollowing screens.

8.2.1 Setting the system dateMenu Configuration Continue Continue Memory

7x "Arrow right"

Press the Arrow right key (screen07) seven times to view the inputfield for the system date. Press theF4 function key to select thedigit(s) you want to edit and thenpress the F1 and F5 keys to setthe display forward or backward inone-step increments.The date format in DD.MM.YYcan be set to any date between 01/01/2001 and 29/12/2099.

8.2.2 Setting the system timeMenu Configuration Continue Continue Memory

6x "Arrow right"

Press the Arrow right key (screen06) six times to view the inputfield for the system time. Press theF4 function key to select thedigit(s) you want to edit and thenpress the F1 and F5 keys to setthe display forward or backward inone-step increments. The timeformat in HH:MM:SS is availablein a 24-hour format.

8 Options

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8.2.5 Symbol explanation

1= Desired voltage level,displayed in the bottom left-hand screen corner.

2 = Actual voltage level,displayed in the bottom left-hand screen corner. Thearrow will point up or downwhenever the top/bottomvalues of the desired voltagelevel exceed the screen limits.

3 = Overvoltage/undervoltagebar, configurable.

4 = For the overvoltage values,the inscription in the displayfield always corresponds tothe uppermost line.

5 = For the undervoltage values,the inscription in the displayfield always corresponds tothe bottom-most line.

6 = Shifting the time axisbackward.

7 = Shifting the time axisforward.

8 = Increasing the set values inone-increment steps. (See A6through A9)

9 = Selection of the values to beset. (See A6 through A9)

10 = Decreasing the set values inone-increment steps. (See A6through A9)

8.2.3 Setting the measurement units of the display

The measurement units of the display can be individually setto the users specific requirements (display available in V, kV,% or A). This setting will be maintained even after switchoverto the write mode.

Menu Configuration General 3x "Arrow right"

Press the Arrow right key (screen03) three times to view the inputfield for the V/kV display. To togglebetween the two modes, press theF1 or F5 keys.

Menu Configuration General 4x "Arrow right"

Press the Arrow right key (screen04) four times to view the inputfield for the %/A display. To togglebetween the two modes, press theF1 or F5 keys.

8.2.4 Setting the write mode

Menu Inf. Arrow left (screen page 15)

After execution of this keysequence the instrument is now inthe write mode (see illustration).After switchover to the writemode, the operator-set desiredvoltage level will automaticallyshow up roughly in the center ofthe screen. The units of thevoltages per unit are software-

determined and can be altered by the operator. If the writefunction is called up again, however, the parameterization-determined set values will again override any other settings.While in the write mode, the settings for time axis, voltagerange, return time and return date can be determined as well.

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8 Options

8.2.6 Setting the time axis

Menu Inf. Arrow left 1x "F4" (screen page 15)

Press the F4 function key onceto view the input field for themessage times (see arrow). Pressthe F3 and F5 function keysto set the display forward orbackward in one-step increments(see table). It is recommended touse the highest-possible resolu-tion for the range displayed.

The subdivision of the time axis and the ensuing duration ofthe range displayed are shown in the following table:

Adjustable 15 sec 30 sec 1 min 2.5 min 5 min 10 minsteps

Display 3.5 min 7 min 14 min 35 min 70 min 140 min

8.2.7 Setting the voltage range


Display in V:Press the F4 function key twiceto view the input field for thevoltage range (see arrow). Here,the display is limited to themaximum and minimum voltage.Press the F3 and F5 functionkeys to set the display forward orbackward in one-step increments.The voltage range is subdivided inthe following steps: 0.5 V, 1 V,2 V, 5 V, 10 V and 15 V per hori-zontal grid line.

Display in kV:Press the F4 function key twiceto view the input field for thevoltage range (see arrow). Here,the display is limited to themaximum and minimum voltage.Press the F3 and F5 functionkeys to set the display forward orbackward in one-step increments.The voltage range is subdivided inthe following steps:0.1 kV, 0,2 kV, 0,5 kV, 1 kV, 2 kV,5 kV, 10 kV and 20 kV per hori-zontal grid line.

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8 Options

8.2.8 Setting the return time


Press the F4 function key threetimes to view the input field forthe return time (see arrow). Thisfunction is used to set the displayback to a precise specific instant.Press the F3 and F5 functionkeys to set the display forward orbackward in one-step increments,and the arrow left and arrow

right keys to move the selection into the adjacent field. Thetime input format is in HH:MM:SS and can be set from thepresent time all the way back to the oldest time on file in thememory.

8.2.9 Setting the return date


Press the F4 function key fourtimes to view the input field forthe return date (see arrow). Thisfunction is used to set the displayback to a precise specific instant.Press the F3 and F5 functionkeys to set the display forward orbackward in one-step increments,and the arrow left and arrowright keys to move the selection

into the adjacent field. The date input format is in DD:MM:YYand can be set from the present day all the way back to theoldest time file in the memory.

In case one of the past displays is no longer available in thelong-term memory (the read-only storage is deleted in blockswhenever the memory capacity is exceeded), no curve willappear on the screen.

8.2.10 Setting threshold values

Menu Configuration Continue Continue Memory

If the set threshold value limits are exceeded above or below,a so-called event is additionally recorded at maximumresolution, for easier analysis at a later date.

The threshold values include the monitoring tape, whichmakes sense.

Press the arrow left and arrow right keys to select thevarious screens; the settings can be changed with the F1and F5 keys. Use the F4 key to toggle back and forthbetween the different digits of the figure for the differentdisplay variants in V/kV.

Screen 00:Setting the lower threshold valuein %:

Screen 01:Setting the lower threshold valuein V:

Screen 02:Setting the upper threshold valuein %:

Screen 03:Setting the upper threshold valuein V:

Which of the values are relevant (absolute or %) is shown inthe following figure.

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8 Options

8.2.11 Setting the relative/absolute value

Menu Parameters Limit values

Go to the 00 screen to togglebetween the relative and theabsolute limit value. If this settingis ON, the absolute limit valuewill be used instead of the limitvalue related to the desiredvoltage level. For toggling, againuse the F1 or the F5 key.

8.2.12 Setting the mean value memory intervalsMenu Configuration Continue Continue Memory

4x "Arrow right"

The long-term memory of the TAPCON 240 has a memorycapacity of 8MB. It is divided into the mean value memoryand the event memory. The mean value memory is used forstoring intervals of 1 sec, 2 sec, 4 sec, 10 sec, 20 sec or 40 secduration, depending on the setting. The operator can changethis setting individually. To that end, press the arrow rightkey four times, until screen 04 is displayed. At that point, thedesired setting can be selected by pressing the F1 or F5keys. An outline of the maximum recording times, usingvarious different recording intervals, is shown in the subse-quent example no. 2.

8.2.13 Setting the event memory

Menu Configuration Continue Continue Memory

5x "Arrow right"

The event memory can be set for a range between 256kB and2,048kB. To that end, press the arrow right key five timesuntil screen 05 is displayed. At that point, the desired settingcan be selected by pressing the F1 or F5 keys.

All events involving an overshoot above or below the pre-setthreshold values are stored in the event memory at a higherresolution.

The maximum number of events, in relation to the eventmemory capacity, is shown in the following table.

The following two examples show how the event memoryworks:

Example 1:The duration of an event is shorter than 5 minutes.

Memorization of the event starts 10 seconds before theactual event and ends 10 seconds thereafter.

CAUTION

Setting the mean value memory interval involves erasure ofthe complete memory upon acknowledgement of a change.

CAUTION

Setting the mean value memory interval involves erasure ofthe complete memory upon acknowledgement of a change.

Event memory capacity 256 kB 512 kB 1024 kB 2048 kB

Maximum number of events 20 40 80 160

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8 Options

Example 2:The duration of an event is longer than 5 minutes.

Memorization of the high-resolution data starts 10 secondsbefore an event. If the duration of an event is longer than 5minutes, storage will continue at low resolution. If thevoltage enters back into the normal range, this occurrenceis considered a new event. The new event has a lead time of10 seconds and an overshoot time of 10 seconds.

The storage time, which is indicated in days, is shown in thetable below. Depending on mean value interval and eventmemory capacity, it can last for a duration of up to 470days.

8.2.14 Measured-value recorder displayMenu Inf. 4x Arrow left (screen page 12)

The info page of the measured-value recorder also shows thenumber of events that havealready taken place and thepotential number of events stillpossible.

XX = the maximum storingcapacity, in days, of the meanvalue memory.

YY = the number of eventsrecorded in the eventmemory.

ZZ = the maximum number ofevents which can be stored.

8.2.15 Peak memory display

Menu Inf. 3x Arrow left (screen page 13)

The info page of the peak memoryshows the minimum and maximumvoltages measured and the mini-mum and maximum tap positionof the tap-changer. The minimumand maximum values will continueto be stored in an internal read-only memory even in the event ofa power failure.

XX = Minimum voltage measured.YY = Maximum voltage measured.ZZ = Minimum tap position.VV = Maximum tap position.

To reset these measured values, press the F3 and F4 keysat the same time.

8.3 TAPCON 240 without long-term memory

Without the long-term memory module (8 MB), the displayhas a memory capacity for up to 1,000 values. The data areread into this memory at a maximum resolution. This has theeffect that whenever the subdivision is changed, the recor-ded graph no longer goes all the way to the left edge of thegraph chart recorder. For settings where more values areavailable than can be displayed, it is possible to shift thescreen into the past. However, this is admissible only to theextent that the graph is still visible across the entire screen.After being shifted, the display stalls at the desired value andstops moving altogether. It is frozen. Press the F1 or F2function keys to switch back and forth between one entirepage at a time.

Event memory capacity (kByte)

Mean value interval (s) 256 512 1024 2048

1 11 11 10 9

2 23 22 21 18

4 47 45 42 36

10 117 113 106 91

20 235 227 212 182

40 470 455 424 364

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9 Status messages and error messages on the display

9 Status messages and error messages on the display

Status message Comment

Circulating In parallel operation the regulator is operating in accordance with the circulating reactive current reactive current principle.

Master The regulator is engaged in parallel operation as Master in accordance with the synchronism principle.

Follower The regulator is engaged in parallel operation as Follower in accordance with the synchronism principle.

Blocking Presence of a signal at the "Input Regulation Block." input.

Error message Comment

Undervoltage The measuring voltage is lower than the preset U< limit. If the parameter U< also under 30 V" is set to0FF, messages will be suppressed for measuring voltages under 30 V.

Overvoltage The measuring voltage is higher than the preset U> limit.

Overcurrent The current is higher than the preset I> limit.

Error Par. For synchronism:- The tap positions of the regulators engaged in parallel operation were longer than the

preset parallel control signalling delay was unequal.- One of the regulators engaged in parallel operation is not signalling a valid tap position.- None of the regulators engaged in parallel operation is Master.- More than one of the regulators engaged in parallel operation is Master.- One of the regulators engaged in parallel operation is operating in accordance with the

circulating reactive current principle.

For the circulating reactive current principle:- The circulating reactive current of the regulator was longer than the preset parallel control

signalling delay was greater than the preset limit value.- One of the regulators engaged in parallel operation is operating in accordance with the tap

synchronism principle.- The plant topology information is missing.- Presence of a signal at one of the group inputs minimum, but no other regulator was found in

the same group.

Motor protective Presence of a signal at the input for the motor protective switch signal. switch

The monitor screen of the TAPCON 240 may display the following status and error messages whose causes are listed in thetable.

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10 Appendix

10 Appendix

Installation drawing ................................................................................................................................................................................ REL 3B_Sheet 2

Installation drawing, 19-inch mounting rack ......................................................................................................................................... TC3_Mass

Connection diagram ................................................................................................................................................................................ REL 3B_Sheet 3

Connection diagram I0-Card ................................................................................................................................................................ REL 3B_Sheet 4

Connection diagram UC-Card .............................................................................................................................................................. REL 3B_Sheet 5

Connection diagram AC-Card ............................................................................................................................................................. REL 3B_Sheet 6

Connection diagram AD-Card .............................................................................................................................................................. REL 3B_Sheet 7

Connection diagram AN-Card .............................................................................................................................................................. REL 3B_Sheet 8

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TAPCON 240

Installation drawingREL 3B_Sheet 2

Fron

t vi

ew

Rear

vie

w

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TAPCON 240

Installation drawing, 19-inch mounting rackTC3_Mass.PIC

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TAPCON 240

Connection diagramREL 3B_Sheet 3

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TAPCON 240

Connection diagram I0-CardREL 3B_Sheet 4

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TAPCON 240

Connection diagram UC-CardREL 3B_Sheet 5

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TAPCON 240

Connection diagram AC-CardREL 3B_Sheet 6

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Connection diagram AD-CardREL 3B_Sheet 7

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TAPCON 240

Connection diagram AN-CardREL 3B_Sheet 8

Maschinenfabrik Reinhausen GmbH Phone +49 941 40 90-0Falkensteinstrasse 8 Fax +49 941 40 90-11193059 Regensburg, Germany E-mail [email protected]

www.reinhausen.com

Please note: The data in our publications may differ from the data of devices delivered.We reserve the right to make changes without notice.BA 222/03 en 0903/1000 222/03/01/0 F0098702 Printed in Germany

Documents

Voltaje Regulador Tapcon 240