10.12.3.1 Verifying the settings1. Connect the test set for the injection of a three-phase current to the appropriatecurrent terminals of the IED.2. If current need to be injected for a particular test, it should be done in the phaseselected by the PhSel parameter.3. Follow the sequence for positioning the auxiliary contacts before testing:POSCLOSE 0 1 0POSOPEN 0 0 14. Test of CB contact travel time4.1. Test the set timing defined by OpenTimeCorr, CloseTimeCorr,tTrOpenAlm and tTrCloseAlm.4.2. Change the status of the auxiliary contacts such that travel time to openTTRVOP and travel time to close TTRVCL exceed the respective set values(tTrOpenAlm and tTrCloseAlm). The measured travel time for opening andclosing is shown on TTRVOP and TTRVCL respectively.4.3. Check that TRVTOPAL and TRVTCLAL are activated.5. Test of CB status5.1. Test the set current level defined by AccStopCurr.5.2. Check the CLOSEPOS output by changing the POSOPEN to 0 andPOSCLOSE to 1.5.3. Check the OPENPOS output by changing the POSOPEN to 1 andPOSCLOSE to 0 and also inject the current in the selected phase slightlylower and higher than AccStopCurr set value. Only for a current lower thanset AccStopCurr should activate the output POSOPEN.5.4. Check the circuit breaker is in INVDPOS if auxiliary contacts read samevalue or CB is open and inject the current in selected phase more thanAccStopCurr set value.6. Test of remaining life of CB6.1. Test the set timing defined byRatedOperCurr, RatedFltCurr,OperNoRated, OperNoFault, DirCoef, CBLifeAlmLevel.6.2. Vary the phase current in the selected phase from below rated operatedcurrent, RatedOperCurr to above rated fault current, RatedFltCurr of abreaker.6.3. The remaining life of CB output CBLIFEPH is estimated when the CB ischanged from closed to open position. Check that the output CBLIFEPH isdecreased with a value that corresponds to the injected current.6.4. CBLIFEAL is activated as soon as CBLIFEPH is below the setCBLifeAlmLevel value.7. Test of accumulated energySection 10 1MRK 511 360-UEN ATesting functionality by secondary injection182 Bay control REC670 2.1 IECCommissioning manual
