Scheme Communication; Scheme Communication Logic For Distance Or Overcurrent Protection Zcpsch (85); Function Revision History; Testing Permissive Underreaching - ABB Relion 670 Series Commissioning Manual

1MRK 511 403-UUS Rev. K
11.11

Scheme communication

11.11.1 Scheme communication logic for distance or overcurrent
protection ZCPSCH (85)
Prepare the IED for verification of settings as outlined in section
for test" in this chapter.
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 tSendMin minimum time.
Check the tripping function by activating the CR and CR_GUARD inputs with the overreaching zone used
to achieve the PLTR_CRD signal.
It is sufficient to activate the zones with only one type of fault with the secondary injection.
11.11.1.1

Function revision history

Document
revision
B
C
D
E
F
G
H
J
K
L
M
11.11.1.2

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.
Bay control REC670
Commissioning manual
Product History
revision
2.2.1 -
2.2.2 -
2.2.2
2.2.2 -
2.2.3 -
2.2.3 -
2.2.3 -
2.2.4 -
2.2.4 -
2.2.4
2.2.5 Added separate DOs for teleprotection permissive (TxPrm & RxPrm1), blocking (TxBlk &
RxBlk1) and direct trip (TxTr & RxTr1) transmit and receive signals in accordance with 61850
Ed 2.0.
© 2017 - 2021 Hitachi Power Grids. All rights reserved
Testing functionality by secondary injection
"Requirements" and section
GUID-E8271DE5-A605-432C-8608-F8DEEF97D4F0 v1
Section 11
SEMOD53569-1 v1
M13868-2 v7
"Preparing
M13868-10 v4
187