Electrical Machines The leakage reactance of a 3-phase alternator is determined by performing open circuit and short circuit tests. zero power factor and slip tests. short circuit and slip tests. open circuit and zero power factor tests. open circuit and short circuit tests. zero power factor and slip tests. short circuit and slip tests. open circuit and zero power factor tests. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines The power developed by salient pole synchronous machine is/are power due to saliency or reluctance only both 1 and 2 None of these excitation power only power due to saliency or reluctance only both 1 and 2 None of these excitation power only ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines Where the shunt generators are widely used? Where often load fluctuation is occurred. Where voltage variation is needed over a wide load range. Where the load is very high. Where a constant voltage is required over a narrow load range. Where often load fluctuation is occurred. Where voltage variation is needed over a wide load range. Where the load is very high. Where a constant voltage is required over a narrow load range. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines If Pi and Pc represent core and full load copper loss respectively, the maximum KVA delivered to load corresponding to maximum efficiency is equal to rated KVA is Pc/Pi Pi/Pc √(Pi/Pc) (Pi/Pc)2 Pc/Pi Pi/Pc √(Pi/Pc) (Pi/Pc)2 ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines In a 3-phase induction motor, torque and supply voltage are related as T ∝ V T∝ V² T ∝ 1/V² T ∝ 1/V T ∝ V T∝ V² T ∝ 1/V² T ∝ 1/V ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines In a DC Shunt Motor if the load current increases keeping the terminal voltage constant, then flux will remain constant. increase. any of the above. decrease. remain constant. increase. any of the above. decrease. ANSWER DOWNLOAD EXAMIANS APP
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