Electrical Machines The full load copper loss and iron loss of transformer are 6400W and 5000W respectively. The copper loss and iron loss at half load will be respectively? 3200 W and 2500 W 3200 W and 5200 W 1600 W and 5000 W 1600 W and 1250 W 3200 W and 2500 W 3200 W and 5200 W 1600 W and 5000 W 1600 W and 1250 W ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines Under which of the following conditions hunting of synchronous motor is likely to occur ? Small and constant load. Periodic variation of load. Over-excitation. Over-loading for long period. Small and constant load. Periodic variation of load. Over-excitation. Over-loading for long period. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines The DC compound motors are generally Differentical compound. Cummulative compound. None of these. Level Compound. Differentical compound. Cummulative compound. None of these. Level Compound. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines If the excitation is reduced, the power factor is lagging power factor leading power factor None of these unity power factor lagging power factor leading power factor None of these unity power factor ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines A 10KVA auto transformer, turn ratio is 0.4. Find the power transferred inductively? 10 KVA 0 KVA 6 KVA 4 KVA 10 KVA 0 KVA 6 KVA 4 KVA ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines A small air gap in poly phase induction motor helps to reduce magnetizing current. increase starting torque. reduce chance of crawling. reduce chance of cogging. reduce magnetizing current. increase starting torque. reduce chance of crawling. reduce chance of cogging. ANSWER DOWNLOAD EXAMIANS APP
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