11.11.2.2 Testing permissive overreaching GUID-379F42E5-ABA9-4C43-9EE8-B0A5609371C8 v11. Activate the receive (CRLx) signal in the IED.2. Apply healthy normal load conditions to the IED for at least two seconds.3. Apply a fault condition within the permissive zone.4. Check that correct trip outputs, external signals, and indication are obtainedfor the all actual types of fault generated.5. Check that the other zones operate according to their zone timer and that thesend (CSLx) signal is obtained only for the zones and phases that areconfigured to give the actual signal. Also the zone connected to CSLxunderreach is giving CSLx in this mode.6. Deactivate the IED receive (CRLx) signal.7. Apply healthy normal load conditions to the IED for at least two seconds.8. Apply a fault condition within the permissive zone.9. Check that trip time complies with the zone timers and that correct tripoutputs, external signals, and indications are obtained for the actual type offault generated.11.11.2.3 Testing blocking scheme GUID-4FAA2F15-BB34-456D-A7F2-E79245371CBD v11. Deactivate the receive (CRLx) signal of the IED.2. Apply healthy normal load conditions to the IED for at least two seconds.3. Apply a fault condition within the forward directed zone used for schemecommunication tripping.4. Check that correct trip outputs and external signals are obtained for the typeof fault generated and that the operate time complies with the tCoord timer(plus relay measuring time).5. Check that the other zones operate according to their zone times and that asend (CSLx) signal is only obtained for the reverse zone.6. Activate the IED receive (CRLx) signal.7. Apply a fault condition in the forward directed zone used for schemecommunication tripping.8. Check that the no trip from scheme communication occurs.9. Check that the trip time from the forward directed zone used for schemecommunication tripping complies with the zone timer and that correct tripoutputs, external signals, and indications are obtained for the actual type offault generated.11.11.2.4 Completing the test M13868-84 v6Continue 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.Section 11 1MRK 505 378-UEN ATesting functionality by secondary injection240 Line differential protection RED670 2.2 IECCommissioning manual
