A 3-phase, 400/200 V, Y— Y connected wound-rotor induction motor has – McqOptions

MCQOPTIONS

1.	A 3-phase, 400/200 V, Y— Y connected wound-rotor induction motor has 0.06 Ω rotor resistance and 0.3 Ω standstill reactance per phase. To make the starting torque equal to the maximum torque, the additional resistance required in the rotor circuit will be
A.	0.24 Ω /phase
B.	0.34 Ω /phase
C.	0.42 Ω /phase
D.	0.52 Ω /phase
Answer» B. 0.34 Ω /phase

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