ABB Relion 670 series - Function Revision History; Testing Permissive Overreaching; Testing Permissive Underreaching

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.
11.12.1.1 Function revision history
GUID-E8271DE5-A605-432C-8608-F8DEEF97D4F0 v1
Document
revision
Product
revision
History
B 2.2.1 -
C 2.2.2 -
D 2.2.2
E 2.2.2 -
F 2.2.3 -
G 2.2.3 -
H 2.2.3 -
J 2.2.4 -
K 2.2.4 -
L 2.2.4
M 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.
11.12.1.2 Testing permissive underreaching
M13868-10 v4
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.
11.12.1.3 Testing permissive overreaching
M13868-28 v4
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.
1MRK 504 165-UUS Rev. J Section 11
Testing functionality by secondary injection
Transformer protection RET670 263
Commissioning manual
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