Question

Why is the power-factor low under no-load conditions of induction motor?

Answer 1

Consequently, an induction motor draws a large magnetizing current (Im) to produce the required flux in the air-gap. ... Therefore, the induction motor takes a high no-load current lagging the applied voltage by a large angle. Hence the power factor of an induction motor on no load is low i.e., about 0.1 lagging.