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 8, 9, 10 and 11 once, in the forward directionin order to test the accuracy of directionality (directionalangles). Directional functionality testing (trip inside, no-tripoutside) should always be made for all impedance zones setwith directionality (forward or reverse).13.4.2.2 Measuring the operating time of distance protection zonesGUID-BB93C603-F43E-40CB-8EFA-3B0F280C011D v5Procedure: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 12 in figure 42 and table 19 for zone 1. Comparethe result of the measurement to the setting tPPZ1.3. Repeat steps 1 to 2 to find the operating time for the phase-to-earth faultaccording to test point 12 in figure 43 and table 20. Compare the result of themeasurement to the setting tPEZ1.4. Repeat steps 1 to 2 to find the operating time for all other used measuringzones.The zones that are not tested have to be blocked and the zone that is testedhas to be released.13.4.2.3 Completing the test GUID-60C5389E-B021-45BB-8CB3-E21348CF50EF v2Continue 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.13.4.3 High Speed distance for series compensated line zones,quadrilateral and mho characteristic ZMFCPDISGUID-EE954483-7157-4EA2-A5DD-537DF6864BC2 v4Prepare the IED for verification of settings outlined in Section "Preparing the IEDto verify settings".Measure operating characteristics during constant current conditions. Keep themeasured current as close as possible to its rated value or lower. But make sure it ishigher than the set minimum operating current.Ensure that the maximum continuous current to the IED does not exceed four timesits rated value, if the measurement of the operating characteristics runs underconstant voltage conditions.Section 13 1MRK 502 073-UEN ATesting functionality by secondary injection140 Generator protection REG670 2.2 IEC and Injection equipment REX060, REX061, REX062Commissioning manual
