Electrical Machines Pole changing methods are suitable only for ___________ type induction motor. linear. none of these. wound. cage. linear. none of these. wound. cage. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines CRGO steel is used in the core of transformer to reduce both eddy current and hysteresis loss. ohmic loss. eddy current loss. hysteresis loss. both eddy current and hysteresis loss. ohmic loss. eddy current loss. hysteresis loss. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines A DC motor with armature resistance of 0.5 ohms connected directly to a 220 Volt supply. If the armature is stationary then the current flowing through the armature is 440 A. 570 A. 250 A. 340 A. 440 A. 570 A. 250 A. 340 A. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines Which of the following statements are correct ? A small value of leakage reactance will increase the maximum power output of motor. None of these The leakage reactance of the induction motor should be small. Both 1 and 2. A small value of leakage reactance will increase the maximum power output of motor. None of these The leakage reactance of the induction motor should be small. Both 1 and 2. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines For a fault at the terminal of a synchronous generator, the fault current is maximum for a 3 - phase to ground fault. 3 - phase fault. line to line fault. line to ground fault. 3 - phase to ground fault. 3 - phase fault. line to line fault. line to ground fault. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines Which of the following is not a necessary condition to be satisfied for synchronising an incoming alternator to an already operating alternator? same phase sequence same frequency same prime mover speed same voltage magnitude same phase sequence same frequency same prime mover speed same voltage magnitude ANSWER DOWNLOAD EXAMIANS APP
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