Answer / k.prakashchandra

I think it is called so ,as the closed position remains in memory (( L M D ) to give ' auto trip ' indication .

what should be the air clearence between phase to phase, phase to earth in Medium voltage switchgear for 3.3kv,6.6kv,11kv,22kv and 33kv? Which is to be referred for this?

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0 Answers   ABC Telecom,

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