Electrical Machines The rotor power output of 3-phase induction motor is 15 KW. The rotor copper losses at a slip of 4% will be 700 W 625 W 600 W 650 W 700 W 625 W 600 W 650 W ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines A 4 pole 50 Hz induction motor is running at 1470 rpm. Find the speed of stator magnetic field with respect to rotor? 30 rpm 1500 rpm 1470 rpm zero 30 rpm 1500 rpm 1470 rpm zero ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines The no load and full load speed of DC mototr are 1400 rpm and 1200 rpm respectively. What is the percentage speed regulation of the motor? 18.25%. 15.30%. 16.67%. 14.28%. 18.25%. 15.30%. 16.67%. 14.28%. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines Which of the following motor has negative speed regulation? Shunt motor Cumulative compound motors Series motor Differential compound motor Shunt motor Cumulative compound motors Series motor Differential compound motor ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines Maximum allowable moisture content of power transformer insulating oil is generally taken as 25 ppm. 20 ppm. 45 ppm. 35 ppm. 25 ppm. 20 ppm. 45 ppm. 35 ppm. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines In case of a compensated DC series motor, the compensating winding is provided In parallel with the armature winding. As a separate unit. In parallel with the field winding. In series with the armature winding. In parallel with the armature winding. As a separate unit. In parallel with the field winding. In series with the armature winding. ANSWER DOWNLOAD EXAMIANS APP
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