Question

1: What is the value of Nr when S=0.6, Ns=1000RPM
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400 RPM
500 RPM
700RPM
600 RPM​

Answer 1

Answer:

It is a dimensionless quantity. The value of slip in induction motor is can never be zero. If Ns and Nr being the synchronous speed of rotating magnetic flux and rotor speed respectively, then the relative speed between them is equal to (Ns – Nr). Therefore, slip is defined as. Slip (s) = (Ns – Nr) / Ns.