function block, it is hardly possible to define a fully covering general commissioningtest.13.8.1.1 Built-in overcurrent feature (non-directional) SEMOD56488-9 v5Procedure1. Go to Main menu/Test/Function test modes/Multipurpose protection/GeneralCurrentVoltage(GAPC)/CVGAPC:x and make sure that CVGAPC tobe tested is unblocked and other functions that might disturb the evaluation of thetest are blocked.2. Connect the test set for injection of three-phase currents to the appropriate currentterminals of the IED.3. Inject current(s) in a way that relevant measured current (according to settingparameter CurrentInput) is created from the test set. Increase the current(s) untilthe low set stage trips and check against the set trip value.4. Decrease the current slowly and check the reset value.5. Block high set stage if the injection current will activate the high set stage whentesting the low set stage according to below.6. Connect a TRIP output contact to the timer.7. Set the current to 200% of the trip value of low set stage, switch on the currentand check the time delay.For inverse time curves, check the trip time at a current equal to 110% of the tripcurrent at t_MinTripDelay.8. Check that TRIP and PICKUP contacts trip according to the configuration logic.9. Release the blocking of the high set stage and check the trip and reset value andthe time delay for the high set stage in the same way as for the low set stage.10. Finally check that PICKUP and TRIP information is stored in the event menu.Information on how to use the event menu is found in theoperator's manual.13.8.1.2 Overcurrent feature with current restraint SEMOD56488-35 v3The current restraining value has also to be measured or calculated and the influenceon the operation has to be calculated when the testing of the trip value is done.Procedure1. Trip value measurementSection 13 1MRK 502 073-UUS ATesting functionality by secondary injection238 Generator protection REG670 2.2 ANSI and Injection equipment REX060, REX061, REX062Commissioning manual
