Electrical Machines A 3 - Φ, 12 pole, 600 V, 50 Hz star connected IM has rotor resistance and stand still resistance of 0.03 Ω and 0.5 Ω respectively. The speed of maximum torque will be 470 rpm. 450 rpm. 240 rpm. 540 rpm. 470 rpm. 450 rpm. 240 rpm. 540 rpm. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines In DC shunt motor if load is increased, the speed remains constant. reduce slightly. increase proportional. increased slightly. remains constant. reduce slightly. increase proportional. increased slightly. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines A DC compound motor has both shunt and series field winding. only series field winding. only shunt field winding. tertiary winding. both shunt and series field winding. only series field winding. only shunt field winding. tertiary winding. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines A 3-phase, 50 Hz, 4 pole induction motor is running at 1440 rpm and rotor input power is 2KW. Find the rotor copper loss? 60W 100W 40W 80W 60W 100W 40W 80W ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines The power developed by salient pole synchronous machine is/are power due to saliency or reluctance only both 1 and 2 None of these excitation power only power due to saliency or reluctance only both 1 and 2 None of these excitation power only ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines The flux is maximum in the following part of a DC motor: under leading pole tip. under the interpole. pole core. under trailing pole tip. under leading pole tip. under the interpole. pole core. under trailing pole tip. ANSWER DOWNLOAD EXAMIANS APP
EXAMIANS