Question

find the synchronous speed. p=4,f=50hz​

Answer 1

Answer:

Explanation:

The synchronous speed of an induction motor can be given as,

Where ‘Ns’ is the synchronous speed in rpm, ‘f’ is the frequency in hertz and ‘p’ is no of poles.

Hence, according to given data it will be,

The synchronous speed is directly proportional to frequency and inversely proportional to no of pole. If you decrease the no of pole the synchronous speed will increase. Lets say in your case if we decrease no of poles to 2, then the synchronous speed will be 3000 rpm.