Electrical Machines In a single phase induction motor, the starting torque developed is proportional to V² 1/V² supply voltage V 1/V V² 1/V² supply voltage V 1/V ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines A part an alternator winding consist of eight coils in series, each having an emf of 20 V rms induced in it. Coils are placed in successive slots and between each slot and the next, there is an electrical phase displacement of 30°. Find the emf of eight coils in series 76.91 V. 66.91 V. 86.91 V. 56.91 V. 76.91 V. 66.91 V. 86.91 V. 56.91 V. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines For a 3 - Φ, 4 pole, 50 Hz IM rotating at full load speed of 1440 rpm, calculate speed of rotor field with respect to rotor structure and stator structure respectively? 60, 1500. 1440, 1500. 50, 1500. 60, 1440. 60, 1500. 1440, 1500. 50, 1500. 60, 1440. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines Slip test is performed to determine positive sequence reactance and negative sequence reactance direct axis reactance and quadrature axis reactance All of these slip positive sequence reactance and negative sequence reactance direct axis reactance and quadrature axis reactance All of these slip ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines The application that need frequent starting and stopping is paper mills. jaw crushers. blowers. lifts and hoists. paper mills. jaw crushers. blowers. lifts and hoists. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines An alternator is feeding an infinite busbar. Its prime mover is suddenly shutdown. The alternator will start working as induction motor. continue to work as alternator but the direction of rotation will reverse. continue to work as synchronous motor with same direction of rotation. come to stand still. start working as induction motor. continue to work as alternator but the direction of rotation will reverse. continue to work as synchronous motor with same direction of rotation. come to stand still. ANSWER DOWNLOAD EXAMIANS APP
EXAMIANS