In general AC distribution systems, arc interruption in vacuum circuit breakers are designed to function in a...

In general AC distribution systems, arc interruption in vacuum circuit breakers are designed to function in a time period of (a) One cycle (b) Two to three cycles (c) Within ten cycles (d) None of the above
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In general AC distribution systems, arc interruption in vacuum circuit breakers are designed to function in a time period of One cycle

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