A 3-phase, 4-pole, 50 Hz induction motor is uses DOL method of startin – McqOptions

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1.	A 3-phase, 4-pole, 50 Hz induction motor is uses DOL method of starting. It is later replaced by auto transformer method of starting with a tapping ratio of x , then the starting torque will be?
A.	x *Tfl
B.	x^2 *Tfl
C.	1/x *Tfl
D.	no change in the starting current
Answer» B. x^2 *Tfl

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