Electrical Machines In a synchronous motor hunting can be reduced to minimum possible by designing the motor for adequate synchronizing power. any of above methods. using a flywheel. providing damper winding in the rotor pole faces. designing the motor for adequate synchronizing power. any of above methods. using a flywheel. providing damper winding in the rotor pole faces. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines With the increase in speed of a DC motor back emf falls and line current increases. back emf increases but line current falls. both back emf as well as line current increase. both back emf as well as line current fall. back emf falls and line current increases. back emf increases but line current falls. both back emf as well as line current increase. both back emf as well as line current fall. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines In star-delta starting of squirrel cage induction motor compared to DOL starting the starting current and torque are 1/3, 1/3 1/√3, 1/3 1/√3, 1/√3 1/3, 1/√3 1/3, 1/3 1/√3, 1/3 1/√3, 1/√3 1/3, 1/√3 ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines The rotor speed of an induction motor is given by Ns = 120f /p × ( 1 - r). None of these Nr = 120f / p × (1-s). Ns = 120f / p × ( 1 - s ). Ns = 120f /p × ( 1 - r). None of these Nr = 120f / p × (1-s). Ns = 120f / p × ( 1 - s ). ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines Which method is less recommendable for induction motor starting in the industries? Auto transformer starting. Rotor resistance starting. Direct online starting. Stator resistance starting. Auto transformer starting. Rotor resistance starting. Direct online starting. Stator resistance starting. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines A shaded pole single phase induction motor can be used for personal computers as cooling fan wet grinders tape recorders food mixers personal computers as cooling fan wet grinders tape recorders food mixers ANSWER DOWNLOAD EXAMIANS APP
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