Possibly reset the counters to Zero. Counters are reset in the reset menu.4. Make arrangements for the simulation of the CB, for example as in Figure 23.5. Make arrangements for indication, recording and time measurements.The signals for CBCLOSED, START, CLOSECB, READY and otherrelevant signals should preferably be arranged for event recording with timetagging. If that is not possible, other means of time measurement andrecording should be arranged.9.8.2.2 Switching the auto recloser to On and OffOn andOff M12400-79 v91. Set the Operation setting to Off and check the state.2. Set the Operation setting to On and check the state, including SETON andREADY.The circuit breaker should be closed and ready.3. If external control inputs OFF/ON are used, check that they work. SetExternalCtrl = On and use the control inputs to switch On and Off, and checkthe state of the function.9.8.2.3 Verifying the auto recloser M12400-91 v12Select the test cases to be run according to what is applicable to the particularapplication. It can be, for example,• three-phase single-shot auto reclosing• two-shot reclosing• single-phase and three-phase single-shot auto reclosingBelow, a case with single-phase and three-phase single-shot auto reclosing isdescribed.1. Set Operation = On.2. If the synchrocheck SESRSYN is not to be operated, ensure that the signalSYNC input is activated. If SESRSYN is to be included, ensure that it issupplied with the appropriate AC quantities.3. Simulate CB closed position by closing switch SC to make the BR relay start.4. Simulate CBREADY by closing the switch SRY, and leave it closed.5. Inject AC quantities to give a trip, for example, a one-phase trip, to the BRand to the START input of the auto recloser.Observe and preferably record the operation. The BR relay shall trip andreclose (start). After reclosing, the SRY switch can be opened for about 5sand then closed again.The auto reclosing open time and the sequence should be checked, forexample in the event recording. Check also the operation indications(disturbance report) and the operation counters on the local HMI under Mainmenu/Test/Function status/Control/AutoRecloser79,5(0–>1)/SMBRREC(79,5(0–>)):xSection 9 1MRK 506 383-UEN ATesting functionality by secondary injection144 Line distance protection REL650 2.2 IECCommissioning manual
