1. Subject the IED to healthy normal load conditions for at least two seconds.2. Apply the fault condition to find the operating time for the phase-to-phase faultaccording to test point 10 in figure 45 and table 29 for zone 1. Compare the result of themeasurement with the settingt1PP.3. Repeat steps 1 to 2 to find the operating time for the phase-to-earth fault according totest point 10 in figure 46 and table 30. Compare the result of the measurement with thesettingt1PE.4. Repeat steps 1 to 2 to find the operating time for all other used measuring zones.Observe that the zones that are not tested have to be blocked and the zone that is testedhas to be released.12.4.8.3 Completing the test GUID-7FA2EA27-B6E2-48AB-8D53-22425E322FFA v1Continue to test another function or end the test by changing theTestMode setting toOff.Restore connections and settings to their original values, if they were changed for testingpurposes.12.4.9 M13888-2 v9Power swing detection ZMRPSBThe aim is to verify that the settings of the Power swing detection function ZMRPSB isaccording to the setting table and to verify that ZMRPSB operates as expected.Prepare the IED for verification of settings outlined in section "Requirements" andsection "Preparing for test" in this chapter.Before starting this process, all impedance measuring zones shall be set and in operation. Testthe outer resistive boarder in forward and reverse direction,RLdOutFw andRLdOutRv and theinner reactive boarder in forward and reverse directionX1InFw andX1InRv. See figure 47.The corresponding resistive border for the inner resistive boundary and outer resistiveboundary is calculated automatically from the setting ofkLdRFw andkLdRRv.The inner zone of ZMRPSB must cover all zones by at least 10% margin.The test is mainly divided into two parts, one which aim is to verify that the settings are inaccordance to the selectivity plan and a second part to verify the operation of ZMRPSB. Theproposed test points for validation of the settings are numbered according to figure 47Test of the interactions or combinations that are not configured are not considered in thisinstruction.Section 12 1MRK 502 067-UEN BTesting functionality by secondary injection126Commissioning manual
