test point 1 in figure 35 and table 32. Compare the result of the measurementwith the set value.3. Repeat steps 1 to 2 to find the operating value for test points 2, 3 in table 32.Observe that the zones that are not tested have to be blocked and the zone thatis tested has to be released.4. Repeat steps 1 to 3 to find the operating value for the phase-to-earth fault L3-E according to figure 36 and table 33.Test points 8, 9, 10 and 11 are intended to test the directionallines of impedance protection. Since directionality is acommon function for all six measuring zones, it is onlynecessary to test points 8, 9, 10 and 11 once, in the forwarddirection in order to test the accuracy of directionality(directional angles). Directional functionality testing (tripinside, no-trip outside) should always be made for allimpedance zones set with directionality (forward or reverse).11.4.8.2 Measuring the operating time of distance protection zonesGUID-70AEC42A-9BC7-445A-AE21-2CEC0C3A79DC v3Procedure: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-phasefault according to test point 10 in figure 35 and table 32 for zone 1. Comparethe result of the measurement with the setting t1PP.3. Repeat steps 1 to 2 to find the operating time for the phase-to-earth faultaccording to test point 10 in figure 36 and table 33. Compare the result of themeasurement with the setting t1PE.4. Repeat steps 1 to 2 to find the operating time for all other used measuringzones.Observe that the zones that are not tested have to be blocked and the zone thatis tested has to be released.11.4.8.3 Completing the test GUID-7FA2EA27-B6E2-48AB-8D53-22425E322FFA v1Continue to test another function or end the test by changing the TESTMODEsetting to Off. Restore connections and settings to their original values, if they werechanged for testing purposes.11.4.9 Power swing detection ZMRPSB M13888-2 v9The aim is to verify that the settings of the Power swing detection functionZMRPSB is according to the setting table and to verify that ZMRPSB operates asexpected.Section 11 1MRK 505 378-UEN ATesting functionality by secondary injection140 Line differential protection RED670 2.2 IECCommissioning manual
