active during first fault. No other outputs should be active. Functional outputsTRIP, all TRLn and TR3P should be active during second fault.5. Initiate a single phase-to-earth fault and switch it off immediately when thetrip signal is issued for the corresponding phase. Initiate the second singlephase-to-earth 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, when included in the protection scheme.Check that the second trip is a three-phase trip and that a three-phaseautoreclosing attempt is given after the three-phase dead time. Functionaloutputs TRIP, TRLn and TR1P should be active during the first fault. Noother outputs should be active. Functional outputs TRIP, all TRLn and TR3Pshould be active during second fault.13.11.1.3 1ph/2ph/3ph operating mode SEMOD54375-143 v5In addition to other tests, the following tests, which depend on the completeconfiguration of an IED, should be carried out.Procedure1. Make sure that AutoLock and TripLockout are both set to Off.2. Initiate different single-phase-to-earth faults one at a time.Take an adequate time interval between faults into consideration, to overcomea reclaim time, which is activated by the autorecloser function SMBRREC.Only a single-phase trip should occur for each separate fault and only one ofthe trip outputs (TRLn) should be activated at a time. Functional outputsTRIP and TR1P should be active at each fault. No other outputs should beactive.3. Initiate different phase-to-phase faults one at a time.Take an adequate time interval between faults into consideration, to overcomea reclaim time which is activated by SMBRREC. Only a two-phase tripshould occur for each separate fault and only corresponding two trip outputs(TRLn) should be activated at a time. Functional outputs TRIP and TR2Pshould be active at each fault. No other outputs should be active.4. Initiate a three-phase fault.Take an adequate time interval between faults into consideration, to overcomea reclaim time, which may be activated by SMBRREC. Only a three-phasetrip should occur for the fault and all trip outputs (TRLn) should be activatedat the same time. Functional outputs TRIP and TR3P should be active at eachfault. No other outputs should be active.5. Initiate a single phase-to-earth fault and switch it off immediately when thetrip signal is issued for the corresponding phase. Initiate the same fault onceagain within the reclaim time of the used SMBRREC.A single-phase fault shall be given at the first fault. A three-phase trip mustbe initiated for the second fault. Check that the corresponding trip signalsappear after both faults. Functional outputs TRIP, TRLn and TR1P should beSection 13 1MRK 502 073-UEN ATesting functionality by secondary injection252 Generator protection REG670 2.2 IEC and Injection equipment REX060, REX061, REX062Commissioning manual
