How many times the normal current draws at the first start of the synchronous motor circuit?

Question

Question

engineering Mechanical-Engineering

Answer 1

Answer #1

Synchronous motor will run either at synchronous speed or will not run at all.
The only way to change its speed is to change its supply frequency. (As Ns = 120f / P)
Synchronous motors are not self starting. They need some external force to bring them near to the synchronous speed.

Starting current of synchronous motor circuit is 2 to 5 times than that of normal current

Answer 2

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