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Reply To: Switchgear Riddle No.7 – Outgoing feeder protection inactivity

2021-08-03 at 11:08 am #1893
GLAVIZH

    I am not sure , the problem has been arisen from load stabs ( outgoings) . It seems , it has been arisen from line stabs (incoming and on upstream side of 200 Ampere MCCB) .In this case MCCB is not bound to interrupt the fault current on its own upstream side.