Electrical Machines When maximum starting torque is obtained, rotor power is ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines The efficiency of a transformer is mainly dependent on dielectric losses. stray losses. core losses. copper losses. dielectric losses. stray losses. core losses. copper losses. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines Crawling in an induction motor is due to slip ring rotor. time harmonics in supply. space harmonics produced by winding currents. insufficient starting torque. slip ring rotor. time harmonics in supply. space harmonics produced by winding currents. insufficient starting torque. 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? zero 1500 rpm 1470 rpm 30 rpm zero 1500 rpm 1470 rpm 30 rpm ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines The low voltage winding of a 400/230 V single phase 50 Hz transformer is to be connected to keep the magnetization current at the same level in both the cases the voltage at 25 Hz should be 65 V 115 V 230 V 460 V 65 V 115 V 230 V 460 V ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines Synchronous condensers are used to All of these improve the power factor reduce hunting improve starting torque All of these improve the power factor reduce hunting improve starting torque ANSWER DOWNLOAD EXAMIANS APP
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