MiCOM P921/P922/P923 - Schneider - error

Commissioning GuideP92x/EN CM/F22MiCOM P921/P922/P923 Page 17/265.3.3 Configuration with 3 single voltages (“3Vpn”) and “AND” detection logicDo not exceed a maximum voltage of 2xVn in the following tests.In view of the detection logic (“AND”), the voltages must be injected into the 3 phase inputsto cause tripping to occur.5.3.3.1 Stages (V>) or (V) or (V) or (tV) check:1. If time delay (tV>) is short, gradually inject the voltage into the 3 phases up to the stagevalue: tripping should occur for a voltage equal to the stage (V>) to within ±2%2. If time delay (tV>) is long, inject a voltage equal to 0.98x(V>) into the 3 phases andcheck that tripping does not occur. Then inject 1.2x(V>) and check that tripping occurs.3. Gradually reduce the voltage on one of the phases and measure the value of the dropoffstage (V>) : the function must reset for a voltage less than or equal to theprogrammed hysteresis.Stage (V