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MiCOM

P631/P632/P633/P634Transformer Differential Protection

P631 -302 -401/402 -602

P632 -302 -401/402 -602

P633 -302 -401/402/403 -602

P634 -302 -401/402 -602

Software Upgrade -602

P63X/EN AD/B22(AFSV.12.09171 EN)

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List of Contents

P631-302-401/402-602 // P632-302-401/402-602 // P633-302-401/402/403-602 // P634-302-401/402-602 / AFSV.12.09171 DE U-3

1 Overview Changes in Software Version -602 U-4

2 Functional Details U-52.1 Serial Interfaces U-52.1.1 PC Interface (Function Group PC) U-52.1.2 "Logical" Communication

Interface 1(Function Group COMM1) U-7

2.1.3 "Logical" CommunicationInterface 2

(Function Group COMM2) U-16

2.2 Measured Data Input (Function Group MEASI) U-192.3 Main Functions (Function Group MAIN) U-202.3.1 Conditioning the Measured

Variables

U-20

2.3.2 Assignment of "Logical"Communication Interfaces toPhysical Communication Channels

U-24

2.3.3 Multiple Signaling of theMeasuring-Circuit MonitoringFunction

U-25

2.4 Differential Protection (Function Group DIFF) U-252.5 Thermal Overload Protection (Function Groups

THRM_1 and THRM_2)U-27

2.6 Measuring-Circuit Monitoring (Function GroupsMCM_1 to MCM_4)

U-29

2.7 Overfluxing Protection (Function Group V/f) U-31

2.8 Programmable Logic (Function Group LOGIC) U-39

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Software Upgrade -602

U-4 P631-302-401/402-602 // P632-302-401/402-602 // P633-302-401/402/403-602 // P634-302-401/402-602 / AFSV.12.09171 EN

In software version -602, several new features have been added to the P63x functions.These will now be described with reference to the P631 / P632 / P633 / P634 manual withprint number AFSV.12.06661 EN.

In addition to the software changes, the following new order options have becomeavailable:

Designs with ring-terminal connection

Rapid-response output module with 4 thyristors

Two options (with or without angle brackets) are offered for flush panel mounting. Thedimensional drawings and required panel cutouts are shown in the Supporting

Documents packed with the devices as are the location and terminal connectiondiagrams.

1 Overview Changes in Software Version -602

Hardware Connection

Plans

Software New Features

-302 -401/402/403 -602 PC: Selection of spontaneous signals.

Timeout setting.

COMM1: Additional interface protocol: COURIER.

Selection and testing of spontaneous signals for the

interface protocols according to IEC 60870-5-103,IEC 60870-5-101 and ILS-C.

COMM2: "Logical" Communication Interface 2.

MEASI: Display of the temperature as per-unit value.

MAIN: Separate setting for the secondary nominal current of thesystem transformer for measurement of phase currents andresidual currents.

Assignment of the "logical" communication interfaces COMM1and COMM2 to the communication channels of module A.

Grouping of the signals of measuring-circuit monitoring to form

a multiple signal.

DIFF: Signals D IFF : ID>> t r iggered andDIFF: Id>>> tr iggered.

THRM1 and THRM2:Modified texts for some of the settings.

Per-unit measured values.

Signal TH RMx : Not rea dy.

MCM_1 to MCM_4:Measuring-circuit monitoring functions now available.

V/f: Overfluxing protection function now available.

LOGIC: Number of binary input signals LOG IC: Inp ut n EXTincreased from 16 to 40.

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Software Upgrade -602(continued)

P631-302-401/402-602 // P632-302-401/402-602 // P633-302-401/402/403-602 // P634-302-401/402-602 / AFSV.12.09171 EN U-5

2 Functional Details

2.1 Serial Interfaces

The P63x has a PC interface as a standard component. Communication module A isoptional and can have one or two communication channels depending on the designversion. Communication between the P63x and the control stations computer is throughcommunication module A. Setting and readout are possible through all P63x interfaces.

If the communication module A with two communication channels is installed, settings fortwo "logical" communication interfaces will be available. The settings for "logical"communication interface 1 (COMM1) can be assigned to physical communicationchannels 1 or 2 (see section entitled 'Main Functions'). If the COMM1 settings have been

assigned to communication channel 2, then this means that the settings for "logical"communication interface 2 (COMM2) will automatically be active for communicationchannel 1. Communication with the P63x via communication channel 2 is only possiblewhen the PC interface is inactive. As soon as communication occurs through the PCinterface, communication channel 2 is "dead". Channel 2 will then be re-enabled oncethe PC interface Timeout has elapsed.

If tests are run on the P63x, the user is advised to activate the test mode so that the PCor the control system will evaluate all incoming signals accordingly (see section entitled"Main Functions").

2.1.1 PC Interface (Function Group PC)

Communication between the device and a PC is through the PC interface. In order fordata transfer between the P63x and the PC to function, several settings must be made inthe P63x.

An operating program is available as an accessory for P63x control (see Chapter 13).

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U-6 P631-302-401/402-602 // P632-302-401/402-602 // P633-302-401/402/403-602 // P634-302-401/402-602 / AFSV.12.09171 EN

U-1 PC interface settings

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P631-302-401/402-602 // P632-302-401/402-602 // P633-302-401/402/403-602 // P634-302-401/402-602 / AFSV.12.09171 EN U-7

2.1.2 "Logical" Communication Interface 1 (Function Group COMM1)

Depending on the design version of communication module A (see Technical Data),several interface protocols are available. The protocol as per IEC 60870-5-103 issupported for all versions. The following user-selected interface protocols are availablefor use with the P63x:

IEC 60870-5-103, Transmission protocols - Companion standard for the informativeinterface of protection equipment, first edition, 1997-12 (corresponds to VDEW / ZVEIRecommendation, Protection communication companion standard 1, compatibilitylevel 2, February 1995 edition) with additions covering control and monitoring

IEC 870-5-101, Telecontrol equipment and systems - Part 5: Transmission

protocols - Section 101 Companion standard for basic telecontrol tasks, first edition1995-11

ILS-C, internal protocol of ALSTOM Energietechnik GmbH

MODBUS

DNP 3.0

COURIER

In order for data transfer to function properly, several settings must be made in the P63x.

The communication interface can be blocked through a binary signal input. In addition, asignal or measured-data block can also be imposed through a binary signal input.

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U-8 P631-302-401/402-602 // P632-302-401/402-602 // P633-302-401/402/403-602 // P634-302-401/402-602 / AFSV.12.09171 EN

U-2 "Logical" Communication Interface 1: selecting the interface protocol

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P631-302-401/402-602 // P632-302-401/402-602 // P633-302-401/402/403-602 // P634-302-401/402-602 / AFSV.12.09171 EN U-9

U-3 "Logical" communication interface 1: settings for the IEC 60870-5-103 interface protocol

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U-10 P631-302-401/402-602 // P632-302-401/402-602 // P633-302-401/402/403-602 // P634-302-401/402-602 / AFSV.12.09171 EN

U-4 "Logical" communication interface 1: settings for the IEC 870-5-101 interface protocol

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P631-302-401/402-602 // P632-302-401/402-602 // P633-302-401/402/403-602 // P634-302-401/402-602 / AFSV.12.09171 EN U-11

U-5 "Logical" communication interface 1: settings for the ILS_C interface protocol

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U-12 P631-302-401/402-602 // P632-302-401/402-602 // P633-302-401/402/403-602 // P634-302-401/402-602 / AFSV.12.09171 EN

U-6 "Logical" communication interface 1: settings for the MODBUS protocol

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P631-302-401/402-602 // P632-302-401/402-602 // P633-302-401/402/403-602 // P634-302-401/402-602 / AFSV.12.09171 EN U-13

U-7 "Logical" communication interface 1: settings for DNP 3.0

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U-14 P631-302-401/402-602 // P632-302-401/402-602 // P633-302-401/402/403-602 // P634-302-401/402-602 / AFSV.12.09171 EN

U-8 "Logical" communication interface 1: settings for COURIER

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P631-302-401/402-602 // P632-302-401/402-602 // P633-302-401/402/403-602 // P634-302-401/402-602 / AFSV.12.09171 EN U-15

Checking spontaneoussignaling

For interface protocols per IEC 60870-5-103, IEC 870-5-101 or ILS-C, there is the optionof selecting a signal for testing purposes. This transmission of this signal to the controlstation as sig. start or sig. end can then be triggered via the local control panel.

U-9 Checking spontaneous signaling

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U-16 P631-302-401/402-602 // P632-302-401/402-602 // P633-302-401/402/403-602 // P634-302-401/402-602 / AFSV.12.09171 EN

2.1.3 "Logical" Communication Interface 2 (Function Group COMM2)

"Logical" communication interface 2 supports the IEC 60870-5-103 interface protocol.

In order for data transfer to function properly, several settings must be made in the P63x.

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P631-302-401/402-602 // P632-302-401/402-602 // P633-302-401/402/403-602 // P634-302-401/402-602 / AFSV.12.09171 EN U-17

U-10 Settings for "logical" communication interface 2

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U-18 P631-302-401/402-602 // P632-302-401/402-602 // P633-302-401/402/403-602 // P634-302-401/402-602 / AFSV.12.09171 EN

Checking spontaneoussignaling

There is the option of selecting a signal for testing purposes. This transmission of thissignal to the control station as sig. start or sig. end can then be triggered via the localcontrol panel.

U-11 Checking spontaneous signaling

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P631-302-401/402-602 // P632-302-401/402-602 // P633-302-401/402/403-602 // P634-302-401/402-602 / AFSV.12.09171 EN U-19

2.2 Measured Data Input (Function Group MEASI)

Display of the temperature as per-unit value is now available.

Figure in

the 601 Manual:

Replace by Figure:

3-19 U-12

U-12 Temperature measurement using a resistance thermometer

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U-20 P631-302-401/402-602 // P632-302-401/402-602 // P633-302-401/402/403-602 // P634-302-401/402-602 / AFSV.12.09171 EN

2.3 Main Functions (Function Group MAIN)

2.3.1 Conditioning the Measured Variables

The secondary nominal current of the system transformer is now set separately for themeasurement of phase currents and residual currents.

Figure in

the 601 Manual:

Replace by Figure:

3-29 U-13

3-30a U-14

3-30b U-15

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P631-302-401/402-602 // P632-302-401/402-602 // P633-302-401/402/403-602 // P634-302-401/402-602 / AFSV.12.09171 EN U-21

U-13 Connection of the measured variables to the P63x, connection of the fourth current transformer set to the transformers of theneutral-point-to-ground connections

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U-22 P631-302-401/402-602 // P632-302-401/402-602 // P633-302-401/402/403-602 // P634-302-401/402-602 / AFSV.12.09171 EN

U-14 Connection of the measured variables to the P63x, looping of the fourth current transformer set into the ground connections of thephase current transformers, Part 1 of 2

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P631-302-401/402-602 // P632-302-401/402-602 // P633-302-401/402/403-602 // P634-302-401/402-602 / AFSV.12.09171 EN U-23

U-15 Connection of the measured variables to the P63x, looping of the fourth current transformer set into the ground connections of thephase current transformers, Part 1 of 2

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U-24 P631-302-401/402-602 // P632-302-401/402-602 // P633-302-401/402/403-602 // P634-302-401/402-602 / AFSV.12.09171 EN

2.3.2 Assignment of "Logical" Communication Interfaces to PhysicalCommunication Channels

There are one or two communication channels available, depending on the designversion of communication module A (see section entitled "Technical Data"). The "logical"communication interfaces COMM1 and COMM2 can be assigned to these physicalcommunication channels.

If "logical" communication interface COMM1 is assigned to communication channel 2,then this means that the settings for "logical" communication interface 2 (COMM2) willautomatically be active for communication channel 1. Communication with the P139 viacommunication channel 2 is only possible when the PC interface is inactive. As soon ascommunication occurs through the PC interface, communication channel 2 is "dead".

Channel 2 will then be re-enabled once the PC interface Timeout has elapsed.

U-16 Assignment of "logical" communication interfaces to physical communication channels

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P631-302-401/402-602 // P632-302-401/402-602 // P633-302-401/402/403-602 // P634-302-401/402-602 / AFSV.12.09171 EN U-25

2.3.3 Multiple Signaling of the Measuring-Circuit Monitoring Function

The signals of the measuring-circuit monitoring function are grouped to form a multiplesignal.

U-17 Signals of the measuring-circuit monitoring function

2.4 Differential Protection

The signals DIFF : I D>> tr igg er ed and DIFF : Id>>> t ri gger ed have been added.

Figure in the

601 Manual :

Replace by Figure

3-78 U-18

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U-26 P631-302-401/402-602 // P632-302-401/402-602 // P633-302-401/402/403-602 // P634-302-401/402-602 / AFSV.12.09171 EN

U-18 Measuring system of the P63x

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P631-302-401/402-602 // P632-302-401/402-602 // P633-302-401/402/403-602 // P634-302-401/402-602 / AFSV.12.09171 EN U-27

2.5 Thermal Overload Protection (Function Groups THRM_1 and THRM_2)

The signals TH RM1: No t re ady and THRM2: No t re ady have been added.

U-19 Readiness of the thermal overload protection function

Texts for some of the settings have been rephrased.

Per-unit measured values are now available for the thermal replica status, the objecttemperature and the coolant temperature.

Figure in the

601 Manual :

Replace by Figure:

3-111 U-20

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U-28 P631-302-401/402-602 // P632-302-401/402-602 // P633-302-401/402/403-602 // P634-302-401/402-602 / AFSV.12.09171 EN

U-20 Thermal overload protection

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P631-302-401/402-602 // P632-302-401/402-602 // P633-302-401/402/403-602 // P634-302-401/402-602 / AFSV.12.09171 EN U-29

2.6 Measuring-Circuit Monitoring (Function Groups MCM_1 to MCM_4)

The measuring-circuit monitoring function of the P63x can detect faults in the secondarycircuits of the current transformers. The measuring-circuit monitoring functions MCM_1,MCM_2, MCM_3 and MCM_4 are permanently assigned to the transformer endsmonitored by the P63x. Function group MCM_1 will serve as an example to illustrate theoperation of the MCM_x protection functions. Function groups MCM_2 to MCM_4 areequivalent.

Enabling or disablingmeasuring-circuit

monitoringThe measuring-circuit monitoring function can be disabled or enabled from the local

control panel. Moreover, enabling can be done separately for each parameter subset.

U-21 Enabling or disabling measuring-circuit monitoring.

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U-30 P631-302-401/402-602 // P632-302-401/402-602 // P633-302-401/402/403-602 // P634-302-401/402-602 / AFSV.12.09171 EN

Measuring-circuitmonitoring

The ratio of negative- to positive-sequence current is used as the criterion for measuring-circuit monitoring. The measuring-circuit monitoring function is triggered if the set ratioIneg/ Iposis exceeded and either the negative- or the positive-sequence current exceeds0.02 Inom. After the set operate delay period has elapsed, a warning signal is issued.

U-22 Measuring-circuit monitoring for end a

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Software Upgrade 602(continued)

P631-302-401/402-602 // P632-302-401/402-602 // P633-302-401/402/403-602 // P634-302-401/402-602 / AFSV.12.09171 EN U-31

2.7 Overfluxing Protection (Function Group V/f)

The overfluxing protection function detects an inadmissibly high induction B in the ironcore of transformers as caused by a voltage increase and/or a frequency decrease.

Enabling or disabling theoverfluxing protectionfunction

The overfluxing protection function can be disabled or enabled from the local controlpanel. Moreover, enabling can be done separately for each parameter subset.

U-23 Enabling or disabling the overfluxing protection function

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U-32 P631-302-401/402-602 // P632-302-401/402-602 // P633-302-401/402/403-602 // P634-302-401/402-602 / AFSV.12.09171 EN

Conditioning the measuredvariable

Overfluxing protection evaluates the ratio V/f of voltage to frequency referred to nominalvalues. This ratio is proportional to the induction in the iron core of a transformer. Theoverfluxing measurement is not enabled unless the voltage and frequency are within thelimits for admissible values.

U-24 Conditioning the measured variable

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P631-302-401/402-602 // P632-302-401/402-602 // P633-302-401/402/403-602 // P634-302-401/402-602 / AFSV.12.09171 EN U-33

Fixed-time warning stageThe overfluxing value V/f is monitored to determine whether it exceeds a set threshold.If the overfluxing value is found to exceed the threshold, a timer stage is triggered. Oncethis stage has elapsed, a signal is issued.

U-25 Warning stage

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U-34 P631-302-401/402-602 // P632-302-401/402-602 // P633-302-401/402/403-602 // P634-302-401/402-602 / AFSV.12.09171 EN

Fixed-time tripping stageThe overfluxing value V/f is monitored to determine whether it exceeds a set threshold.If the overfluxing value is found to exceed the threshold, a timer stage is triggered. Oncethis stage has elapsed, a signal is issued.

U-26 Fixed-time tripping stage

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P631-302-401/402-602 // P632-302-401/402-602 // P633-302-401/402/403-602 // P634-302-401/402-602 / AFSV.12.09171 EN U-35

Variable-time tripping stageThe overfluxing value V/f is monitored to determine whether it exceeds a set threshold.If the overfluxing value is found to exceed the threshold, the P63x determines the trippingtime as a function of the overfluxing value and the set characteristic.

The variable-time tripping characteristic is set by defining 12 pairs of overfluxing valueand associated tripping time value. Intermediate values are obtained by interpolation.The setting of the characteristic is checked for plausibility with respect to a monotonedescending characteristic. For values of V/f > 1.6, the tripping time is limited to the valueset for V/f = 1.6. Figure U-27 shows the characteristic as calculated with the P63x defaultvalues.

1

10

100

1.00 1.10 1.20 1.30 1.40 1.50 1.60 1.70 1.80 1.90 2.00V/f

t/s

U-27 Example for a tripping characteristic (default setting)

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U-36 P631-302-401/402-602 // P632-302-401/402-602 // P633-302-401/402/403-602 // P634-302-401/402-602 / AFSV.12.09171 EN

After a starting, the elapsed starting time is accumulated in a buffer. If the starting dropsout, the buffer memory will be discharged. The discharge gradient is determined by theset cooling time. If there is another starting, the buffer memory will be recharged. If theaccumulated starting time reaches the tripping time determined by the P63x then the tripsignal is issued. Figure U-28 shows the buffer content during an interrupted starting. Incase A, the tripping time determined by the P63x is not reached by the accumulatedstarting time. In case B, on the other hand, a trip signal results.

U-28 Change of buffer content during an interrupted starting

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P631-302-401/402-602 // P632-302-401/402-602 // P633-302-401/402/403-602 // P634-302-401/402-602 / AFSV.12.09171 EN U-37

U-29 Variable-time tripping stage

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U-38 P631-302-401/402-602 // P632-302-401/402-602 // P633-302-401/402/403-602 // P634-302-401/402-602 / AFSV.12.09171 EN

U-30 Resetting of the thermal replica

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P631-302-401/402-602 // P632-302-401/402-602 // P633-302-401/402/403-602 // P634-302-401/402-602 / AFSV.12.09171 EN U-39

2.8 Programmable Logic (Function Group LOGIC)

Depending on the P63x design version, up to 40 binary inputs are provided.Accordingly, the number of binary input signals LOGIC: Input n EXThas been increased from 16 to 40.

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ublication:P63X/EN

AD/B22

(AFSV.12.

09171

EN)