1P/2P/3P Operating Mode - ABB Relion 670 Series Commissioning Manual

Section 11
Testing functionality by secondary injection
Consider using an adequate time interval between faults, to overcome a reset time, which is
activated by SMBRREC (79). A three-pole trip should occur for each separate fault and all of the
trips. Functional outputs TRIP, all TR_A, TR_B, TR_C and TR3P should be active at each fault.
4. Initiate a single phase-to-ground fault and switch it off immediately when the trip signal is issued for
the corresponding phase. Initiate the same fault once again within the reset time of the used
SMBRREC (79).
5. Initiate a single phase-to-ground fault and switch it off immediately when the trip signal is issued for
the corresponding phase. Initiate the second single phase-to-ground fault in one of the remaining
phases within the time interval, shorter than tEvolvingFault (default setting 2.0s) and shorter than
the dead-time of SMBRREC (79), when included in the protection scheme.
Check that the second trip is a three-pole trip and that a three-phase autoreclosing attempt is given
after the three-phase dead time. Functional outputs TRIP, TR_A, TR_B, TR_C and TR1P should be
active during the first fault. No other outputs should be active. Functional outputs TRIP, all TR_A,
TR_B, TR_C and TR3P should be active during second fault.
11.13.1.4

1p/2p/3p operating mode

In addition to other tests, the following tests, which depend on the complete configuration of an IED,
should be carried out.
Procedure
1. Make sure that AutoLock and TripLockout are both set to Disabled.
2. Initiate different single-phase-to-ground faults one at a time.
Take an adequate time interval between faults into consideration, to overcome a reset time, which
is activated by the autorecloser function SMBRREC (79). Only a single-pole trip should occur for
each separate fault and only one of the trip outputs (TR_A, TR_B, TR_C) should be activated at a
time. Functional outputs TRIP and TR1P should be active at each fault. No other outputs should be
active.
3. Initiate different phase-to-phase faults one at a time.
Take an adequate time interval between faults into consideration, to overcome a reset time which is
activated by SMBRREC (79). Only a two-phase trip should occur for each separate fault and only
corresponding two trip outputs (TR_A, TR_B, TR_C) should be activated at a time. Functional
outputs TRIP and TR2P should be active at each fault. No other outputs should be active.
4. Initiate a three-phase fault.
5. Initiate a single phase-to-ground fault and switch it off immediately when the trip signal is issued for
the corresponding phase. Initiate the same fault once again within the reset time of the used
SMBRREC (79).
A single-phase fault shall be given at the first fault. A three-pole trip must be initiated for the second
fault. Check that the corresponding trip signals appear after both faults. Functional outputs TRIP,
TR_A, TR_B, TR_C and TR1P should be active during first fault. No other outputs should be active.
Functional outputs TRIP, all TR_A, TR_B, TR_C and TR3P should be active during second fault.
6. Initiate a single phase-to-ground fault and switch it off immediately when the trip signal is generated
for the corresponding phase. Initiate the second single-phase-to-ground fault in one of the
remaining phases within the time interval, shorter than tEvolvingFault (default setting 2.0s) and
shorter than the dead-time of SMBRREC (79), when included in the protection scheme.
7. Check, that the output signals, issued for the first fault, correspond to a two-phase trip for included
phases. The output signals generated by the second fault must correspond to the three-phase
tripping action.
274
No other outputs should be active.
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