what will happen if u run induction motor beyond its rated speed
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Answer Posted / anirban dasgupta
Rated speed is not synchronous speed. Rated speed is always a few percent less than the synchronous speed. For example if a motor has a synchronous speed of 1500 rpm, its rated speed is 1460 rpm. If it is increased beyond 1500 rpm by external means, the motor will act as an induction generator.
Rated speed : The speed of the motor at rated load.
No load speed : The speed of the motor at no load. (Very Very close to synchronous speed)
Synchronous speed : The speed with which the magnetic flux rotates.
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