Hitachi Relion 670 Series Commissioning Manual page 223

1MRK506371-UUS Rev. M
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
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F
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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.
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.
11.11.1.3 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.
Line distance protection REL670
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.
2.2.6 -
2.2.6 -
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Section 11
Testing functionality by secondary injection
GUID-E8271DE5-A605-432C-8608-F8DEEF97D4F0 v2
M13868-10 v4
M13868-28 v4
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