Testing Permissive Overreaching; Testing Blocking Scheme; Completing The Test - ABB Relion 670 Series Commissioning Manual

Section 11
Testing functionality by secondary injection
4. Check that correct trip outputs, external signals, and indications are obtained for all the
actual types of fault generated.
5. Check that other zones operate according to their zone timers and that the send (CSLx)
signal is obtained only for the zone and phase configured to generate the actual signal.
6. Deactivate the receive (CRLx) 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.
11.11.2.2

Testing permissive overreaching

1. Activate the receive (CRLx) 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 all
actual types of fault generated.
5. Check that the other zones operate according to their zone timer and that the send
(CSLx) signal is obtained only for the zones and phases that are configured to give the
actual signal. Also the zone connected to CSLx underreach is giving CSLx in this mode.
6. Deactivate the IED receive (CRLx) signal.
7. Apply healthy normal load conditions to the IED for at least two seconds.
8. Apply a fault condition within the permissive zone.
9. Check that 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.
11.11.2.3

Testing blocking scheme

1. Deactivate the receive (CRLx) signal of the IED.
2. Apply healthy normal load conditions to the IED for at least two seconds.
3. Apply a fault condition within the forward directed zone used for scheme communication
tripping.
4. Check that correct trip outputs and external signals are obtained for the type of fault
generated and that the operate time complies with the
measuring time).
5. Check that the other zones operate according to their zone times and that a send (CSLx)
signal is only obtained for the reverse zone.
6. Activate the IED receive (CRLx) signal.
7. Apply a fault condition in the forward directed zone used for scheme communication
tripping.
8. Check that the no trip from scheme communication occurs.
9. Check that the trip time from the forward directed zone used for scheme communication
tripping complies with the zone timer and that correct trip outputs, external signals, and
indications are obtained for the actual type of fault generated.
11.11.2.4

Completing the test

continue to test another function or end the test by changing the
Restore connections and settings to their original values, if they were changed for testing
purposes.
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Commissioning manual
M13868-84 v6