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why overload relay is not tripped at time of starting of
motor allthough staring current is too high?
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Answer Posted / ikab
when motor starts high Inrush current flows,
Relays are made smarter/biased to sense this Inrush current
and wait to let this current vanished. Inrush current has 2nd harmonics components and this makes it easy to recognize this current from normal current.
| Is This Answer Correct ? | 6 Yes | 3 No |
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