Which of the following statements about a phase advancer is incorrect?
A. It is a particular type of ac exciter which may be connected in the rotor circuit of an induction motor to improve power factor.
B. It uses the principle of injection through slip-rings of the motor a current leading with regard to the rotor voltage.
C. It resembles with an induction motor in construction.
D. Its kVA capacity needs to be only 5% or less of kVA correction affected in the main supply circuit.
E. it has compensating windings on the stator to ensure good commutation
Show Answer
Answer: C
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