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Why is starter necessary for a three-phase induction motor?
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Answer Posted / monika khatri
when the induction motor starts.slip i.e "s" has a value
1...and hence the internal resistance value becomes
0..since resistance is directly proportinal to (s-1)....as
the resistance becomes 0..according to ohms law current
becomes very high.....tha value of current is about 5 to 6
times the full load curent......therefore the motor must
accelerate to high speed ,,which is not possible at "load"
condition.....and hence the motor may burst due to
overheating.............to prevent the motor from bursting
by reducing the value of current we use a STARTER....
| Is This Answer Correct ? | 24 Yes | 9 No |
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