Which one of the following is a characteristic of a typical AC induction motor that causes starting current to be greater than running current?
A. The rotor magnetic field induces an opposing voltage in the stator that is proportional to rotor speed.
B. After the motor starts, resistors are added to the electrical circuit to limit the running current.
C. A large amount of starting current is required to initially establish the rotating magnetic field.
D. The rotor does not develop maximum induced current flow until it has achieved synchronous speed.
Show Answer
Answer: A
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