ABB Relion 670 Series Commissioning Manual page 229

1MRK 506 371-UUS E
11.11.2 Phase segregated scheme communication logic for distance or
overcurrent protection ZC1PPSCH (85)
Prepare the IED for verification of settings outlined in Section
settings".
Check the scheme logic during the secondary injection test of the impedance protection
functions.
Activating of the different zones and phases verifies that the CS_x signal are issued from the
intended zones. The CS_x signal from the independent tripping zone must have a
minimum time.
Check the tripping function by activating the CRLx inputs with the overreaching zone used to
achieve the CACCLx signals.
It is sufficient to activate the zones with all types of fault with the secondary injection.
11.11.2.1 Testing permissive underreaching
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 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 (CS_x)
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 (CS_x)
signal is obtained only for the zones and phases that are configured to give the actual signal.
Also the zone connected to CS_x underreach is giving CS_x 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
Line distance protection REL670
Commissioning manual
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Testing functionality by secondary injection
GUID-33B76F26-DEEF-46C3-A66F-A8713B50E413 v1
"Preparing the IED to verify
tSendMin
GUID-F8C6F099-5C88-466A-8C00-7211981B03B9 v1
GUID-379F42E5-ABA9-4C43-9EE8-B0A5609371C8 v1
GUID-4FAA2F15-BB34-456D-A7F2-E79245371CBD v1
Section 11
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