Electrical Machines A 3 - Φ, 6 pole, 50 Hz IM is running at a full load speed of 980 rpm. If it delivers an air gap power of 98000 Watt, calculate the rotor ohmic loss? 1920 Watt. 1960 Watt. 980 Watt. 1800 Watt. 1920 Watt. 1960 Watt. 980 Watt. 1800 Watt. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines Which of the following is/are the methods to reduce the armature reaction and its effects? All of these pole stacking compensating winding pole chamfering All of these pole stacking compensating winding pole chamfering ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines An induction motor when started on no load does not accelerate up to full speed but runs at 1/7th of the rated speed. The motor is said to be plugging. locking. cogging. crawling. plugging. locking. cogging. crawling. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines In an induction motor, air gap power is 10 Kw and mechanically developed power is 8 Kw. What are the rotor ohmic losses? 3KW 1.5KW 0.5Kw 2KW 3KW 1.5KW 0.5Kw 2KW ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines In a synchronous motor torque or load angle δ ------------- with increase in load remains unaffected decreases increases None of these remains unaffected decreases increases None of these ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines DC Shunt Motor has disadvantage(s) of constant speed. less expensive. not suitable for rapidly changing loads. none of above. constant speed. less expensive. not suitable for rapidly changing loads. none of above. ANSWER DOWNLOAD EXAMIANS APP
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