Electrical Machines An alternator is feeding an infinite busbar. Its prime mover is suddenly shutdown. The alternator will continue to work as alternator but the direction of rotation will reverse. continue to work as synchronous motor with same direction of rotation. come to stand still. start working as induction motor. continue to work as alternator but the direction of rotation will reverse. continue to work as synchronous motor with same direction of rotation. come to stand still. start working as induction motor. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines In DC machine shape of main field flux distribution is? triangular flat tapped or trapezoidal saddle shape peaky in nature triangular flat tapped or trapezoidal saddle shape peaky in nature ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines If the flux of DC motor approaches zero, its speed will aprroach infinity. approach zero. remain unchanged. between zero and infinity. aprroach infinity. approach zero. remain unchanged. between zero and infinity. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines Iron loss in a transformer mainly occurs in iron made tank of transformer. steel core in transformer. transformer insulating oil. winding of transformer. iron made tank of transformer. steel core in transformer. transformer insulating oil. winding of transformer. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines The speed of rotation of 5th harmonic component in the stator of an induction motor is (1 / 15) times the synchronous speed. (1 / 5) times the synchronous speed. 5 times the synchronous speed. 0.5 times the synchronous speed. (1 / 15) times the synchronous speed. (1 / 5) times the synchronous speed. 5 times the synchronous speed. 0.5 times the synchronous speed. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines A 3 - Φ, 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 maximum torque of the motor the additional resistance required 0.45 Ω. 0.66 Ω. 0.78 Ω. 0.24 Ω. 0.45 Ω. 0.66 Ω. 0.78 Ω. 0.24 Ω. ANSWER DOWNLOAD EXAMIANS APP
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