ABB Relion 670 Series Commissioning Manual page 162

Section 11
Testing functionality by secondary injection
1. Connect the test set for injection of voltage and current.
2. Inject voltages and currents corresponding to a phase-to-phase to ground fault within zone 1
of the distance protection function. In the test one of the current inputs (one of the faulted
phases) is disconnected. The remaining current is the fault current out on the protected line.
All combinations of two phase-to-ground faults with one phase current are tested. The result
shall be according to table 36. It should be checked that the fault will give phase-to-phase
voltage, phase-to-ground voltage, zero-sequence voltage and phase current so that the
conditions set for the logic are fulfilled.
Table 36: Operation at different combinations of faults and operation mode
OperMode
No Filter
No Pref
1231c
1321c
123a
132a
213a
231a
312a
321a
11.4.14.1 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.
11.4.15 Phase preference logic PPL2PHIZ
Prepare the IED for verification of settings outlined in Section
settings".
The Phase preference logic function PPL2PHIZ is tested with a three-phase testing equipment for
distance protections. PPL2PHIZ is tested in co-operation with the High speed distance protection
ZMFPDIS (21). The distance protection and the phase preference logic shall be set to values
according to the real set values to be used. The test is made by means of injection of voltage and
current where the amplitude of both current and voltage and the phase angle between the voltage
and current can be controlled.
During the test the following binary signals (outputs) shall be monitored:
• Trip signal from distance protection
• Trip signal from phase preference logic
156
Fault type/Faulted phase current to the IED
A_BG/IA A_BG/IB B_CG/IB
Trip Trip Trip
Trip Trip Trip
Trip No Trip Trip
No Trip Trip No Trip
Trip No Trip Trip
Trip No Trip No Trip
No Trip Trip Trip
No Trip Trip Trip
Trip No Trip No Trip
No Trip Trip No Trip
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B_CG/IC C_CG/IA C_AG/IC
Trip Trip Trip
Trip Trip Trip
No Trip No Trip Trip
Trip Trip No Trip
No Trip Trip No Trip
Trip Trip No Trip
No Trip Trip No Trip
No Trip No Trip Trip
Trip No Trip Trip
Trip No Trip Trip
TESTMODE setting to Disabled .
"Preparing the IED to verify
1MRK 506 371-UUS E
GUID-8BD66BC8-AAC3-41C4-B819-B159361688D2 v4
GUID-E1547542-1407-4488-AD99-2A7D063885A4 v1
Line distance protection REL670
Commissioning manual