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3 ph motor connected in star delta starter. when we start
the motor it run in star but when in is going in delta it
trips the main incoming supply. why?

Answer Posted / anurag tiwari

Dear friend,
there are three point u have to check
1)first u check the motor winding.
2)check the timer and set the delta time.(appox 6sec).
3)If u are using mpd relay .May be your CBCT is saturated.

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