Electrical Machines If the excitation is critical, the power factor of the alternator is lagging power factor. None of these unity power factor. leading power factor. lagging power factor. None of these unity power factor. leading power factor. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines Voltage regulation can be determined by which of the following? Synchronous impedance method. All of these ZPF method. MMf method. Synchronous impedance method. All of these ZPF method. MMf method. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines Transformer core is laminated to reduce both 1 and 2. hysteresis loss. eddy current loss. copper loss. both 1 and 2. hysteresis loss. eddy current loss. copper loss. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines A flat compound generator is obtained from compound generator by connecting a variable resistor in series with the series field in parallel with the series field in parallel with the shunt field in series with the shunt field in series with the series field in parallel with the series field in parallel with the shunt field in series with the shunt field ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines Ward Leonard control is provides speed control Below rated speed. In one direction only. In both direction. Above rated speed. Below rated speed. In one direction only. In both direction. Above rated speed. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines In a star - delta starting of an IM resistance is inserted in the rotor. reduced voltage is applied to the stator. applied voltage per stator phase is 57.7 % of a line volt line voltage is 57.7 % of stator voltage. resistance is inserted in the rotor. reduced voltage is applied to the stator. applied voltage per stator phase is 57.7 % of a line volt line voltage is 57.7 % of stator voltage. ANSWER DOWNLOAD EXAMIANS APP
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