Interlocking; Scheme Communication; Scheme Communication Logic For Distance Or Overcurrent Protection Zcpsch; Testing Permissive Underreaching - ABB Relion 670 Series Commissioning Manual

1MRK 511 403-UEN E
11.9.6

Interlocking

Prepare the IED for verification of settings as outlined in section
section
Values of the logical signals are available on the local HMI under Main menu/Tests/Function
status/Control/Apparatus control/Interlocking. The Signal Monitoring in PCM600 shows the
same signals that are available on the local HMI.
The interlocking function consists of a bay-level part and a station-level part. The interlocking
is delivery specific and is realized by bay-to-bay communication over the station bus. For that
reason, test the function in a system, that is, either in a complete delivery system as an
acceptance test (FAT/SAT) or as parts of that system.
11.10

Scheme communication

11.10.1 Scheme communication logic for distance or overcurrent
protection ZCPSCH
Prepare the IED for verification of settings as outlined in section
section
Check the scheme logic during the secondary injection test of the impedance or overcurrent
protection functions.
Activation of the different zones verifies that the CS signal is issued from the intended zones.
The CS signal from the independent tripping zone must have a
Check the tripping function by activating the CR and CRG inputs with the overreaching zone
used to achieve the CACC signal.
It is sufficient to activate the zones with only one type of fault with the secondary injection.
11.10.1.1

Testing permissive underreaching

1. Activate the receive (CR) signal in the IED.
2. Apply healthy normal load conditions to the IED for at least two seconds.
3. Apply a fault condition within the permissive zone.
4. Check that correct trip outputs, external signals, and indications are obtained for the
actual type of fault generated.
5. Check that other zones operate according to their zone timers and that the send (CS)
signal is obtained only for the zone configured to generate the actual signal.
6. Deactivate the receive (CR) signal in the IED.
7. Check that the trip time complies with the zone timers and that correct trip outputs,
external signals, and indications are obtained for the actual type of fault generated.
11.10.1.2

Testing permissive overreaching

1. Activate the receive (CR) signal in the IED.
2. Apply healthy normal load conditions to the IED for at least two seconds.
3. Apply a fault condition within the permissive zone.
4. Check that correct trip outputs, external signals, and indication are obtained for the
actual type of fault generated.
Bay control REC670
Commissioning manual
"Preparing for test" in this chapter.
"Preparing for test" in this chapter.
© Copyright 2017 ABB. All rights reserved
Testing functionality by secondary injection
"Requirements" and
"Requirements" and
tSendMin minimum time.
Section 11
M11755-2 v8
SEMOD53569-1 v1
M13868-2 v7
M13868-10 v4
M13868-28 v4
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