10.13.3.1 Verifying the settings GUID-962A344D-5F8D-49A6-B3AC-29C7FEED0A3D v41. Connect the test set for the injection of a three-phase current to the appropriate currentterminals of the IED.2. If current need to be injected for a particular test, it should be done in the phase selected bythePhSel 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 byOpenTimeCorr,CloseTimeCorr,tTrOpenAlm andtTrCloseAlm.4.2. Change the status of the auxiliary contacts such that travel time to open TTRVOP andtravel time to close TTRVCL exceed the respective set values (tTrOpenAlm andtTrCloseAlm). The measured travel time for opening and closing is shown on TTRVOPand TTRVCL respectively.4.3. Check that TRVTOPAL and TRVTCLAL are activated.5. Test of CB status5.1. Test the set current level defined byAccStopCurr.5.2. Check the CLOSEPOS output by changing thePOSOPEN to0 andPOSCLOSE to1.5.3. Check the OPENPOS output by changing thePOSOPEN to1 andPOSCLOSE to0 and alsoinject the current in the selected phase slightly lower and higher thanAccStopCurr setvalue. Only for a current lower than setAccStopCurr should activate the outputPOSOPEN.5.4. Check the circuit breaker is in INVDPOS if auxiliary contacts read same value or CB isopen 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 operated current,RatedOperCurr to above rated fault current,RatedFltCurr of a breaker.6.3. The remaining life of CB output CBLIFEPH is estimated when the CB is changed fromclosed to open position. Check that the output CBLIFEPH is decreased with a value thatcorresponds to the injected current.6.4. CBLIFEAL is activated as soon as CBLIFEPH is below the setCBLifeAlmLevel value.7. Test of accumulated energy7.1. Test the actual set values defined byAccSelCal toAux Contact,ContTrCorr andAlmAccCurrPwr.7.2. Inject phase current in the selected phase such that its value is greater than setAccStopCurr value.7.3. When the breaker goes to open position, accumulated energy IPOWPH is calculated. Thecalculated value can be seen on the output IPOWPH.7.4. Alarm signal IPOWALPH appears when IPOWPH is greater than setAlmAccCurrPwr value.7.5. Lockout signal IPOWLOPH appears if IPOWPH exceeds further to the threshold valueLOAccCurrPwr.7.6. Calculation of accumulated energy IPOWPH is stopped when injected current is lowerthan setAccStopCurr value.8. Test of CB operation cyclesSection 10 1MRK 504 154-UUS BTesting functionality by secondary injection212Commissioning manual
