Earth fault :- reg

Viewing 1 post (of 1 total)
  • Author
  • #17027

    Hi all,

    When a dry type air compressor is started, electrical panel is getting tripped.


    90Kw screw air compressor

    Incomer – Air circuit breaker 1250A

    LSIG ABB Air circuit breaker.

    Starter : Star delta starter

    When compressor is switched ON, ACB is getting tripped. When I checked the ACB, indication is showing in ‘G’- ground fault which is set at 0.4*In. But after resetting the breaker, when I start the compressor, it is functioning normally. Also ‘L’ overcurrent indication is also blinking. What is the actual cause? How to rectify it?

Viewing 1 post (of 1 total)
  • You must be logged in to reply to this topic.