Electrical Machines Scott connections are used for three phase to two phase transformation. any of the above. three phase to single phase transformation. single phase to three phase transformation. three phase to two phase transformation. any of the above. three phase to single phase transformation. single phase to three phase transformation. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines A 440 V, 3-phase, 10 pole and 50 HZ synchronous motor delivering a torque of 50 N-m, delivers a power of 1000W 100W 500W 3000W 1000W 100W 500W 3000W ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines A large series motor is never started without some mechanical load on it because otherwise it will produce sparking at brushes. open fuse or circuit breaker. develop excessive speed and damage itself. draw too much current. produce sparking at brushes. open fuse or circuit breaker. develop excessive speed and damage itself. draw too much current. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines Maximum allowable moisture content of power transformer insulating oil is generally taken as 20 ppm. 25 ppm. 35 ppm. 45 ppm. 20 ppm. 25 ppm. 35 ppm. 45 ppm. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines In a DC generator in case the brushes are moved so as to bring them in magnetic neutral axis, then, there will be cross-magnetisation. demagnetisation. cross-magnetization as well as demagnetization. none of above. cross-magnetisation. demagnetisation. cross-magnetization as well as demagnetization. none of above. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines Which of the following rotor requires damper winding? Both type rotor. Cylindrical rotor. Salient pole rotor. None of these Both type rotor. Cylindrical rotor. Salient pole rotor. None of these ANSWER DOWNLOAD EXAMIANS APP
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