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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. [Wrong Answer] |
B. | It uses the principle of injection through slip-rings of the motor a current leading with regard to the rotor voltage. [Wrong Answer] |
C. | It resembles with an induction motor in construction. [Correct Answer] |
D. | Its kVA capacity needs be only 5% or less of kVA correction affected in the main supply circuit. [Wrong Answer] |
E. | it has compensating windings on the stator to ensure good commutation, [Wrong Answer] |