The startup current for large induction motors is very high because
A)the starting impedance is slightly capacitive
B)the power factor is low
C)the counter emf is very high
D)the starting impedance is purely inductive

Question

Quizplus · Accepted Answer

The starting impedance of a large induction motor is purely inductive. This means that the current will lag the voltage by 90 degrees, and the power factor will be low. The high starting current is necessary to overcome the counter emf of the motor.

The Startup Current for Large Induction Motors Is Very High