Electrical Machines A 4 pole, 3-phase induction motor is running at 4% slip at full load. If the speed of the motor is 720 rpm, the supply frequency is 40 HZ 25 Hz 50 Hz 60 Hz 40 HZ 25 Hz 50 Hz 60 Hz ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines In a lap winding dc machine number of conductors are 100 and number of parallel paths are 10. Find the average pitch 100 10 50 1 100 10 50 1 ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines A short circuit test on a transformer gives copper loss at full load. copper loss at half load. copper loss at over load. copper loss at any load. copper loss at full load. copper loss at half load. copper loss at over load. copper loss at any load. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines Maximum allowable moisture content of power transformer insulating oil is generally taken as 45 ppm. 35 ppm. 20 ppm. 25 ppm. 45 ppm. 35 ppm. 20 ppm. 25 ppm. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines Induction motors have the advantage of all of below. simple in construction. less maintenance. less cost. all of below. simple in construction. less maintenance. less cost. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines R1 is the resistance of the primary winding of the transformer. The turn ratio in terms of primary to secondary is K. Then the equivalent resistance of the primary referred to secondary is K×R1 K²R1 R1 /K² R1 /K K×R1 K²R1 R1 /K² R1 /K ANSWER DOWNLOAD EXAMIANS APP
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