Electrical Machines A 3-phase, 50Hz, 4 pole induction motor is running at 1440 rpm and rotor input power is 2KW. Find the rotor output power? 2000W 1920W 1820W 1450W 2000W 1920W 1820W 1450W ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines The self induced emf in the coil undergoing commutation is called the reactance voltage. statically induced voltage. None of these dynamically induced voltage. reactance voltage. statically induced voltage. None of these dynamically induced voltage. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines If terminal voltage of one 1000 rpm shunt motor is reduced to half the speed of the motor will be 2000 rpm 250 rpm 1000 rpm 500 rpm 2000 rpm 250 rpm 1000 rpm 500 rpm ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines Addition of 0.3 % to 4.5 % silicon to iron None of these increases the electrical resistivity of iron. increases the hysteresis loss. reduces the saturation magnetization. None of these increases the electrical resistivity of iron. increases the hysteresis loss. reduces the saturation magnetization. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines Breather is provided in a transformer to filter the transformer oil. absorb moisture of air during breathing. absorb moisture from air entering in transformer. provide cold air in transformer. filter the transformer oil. absorb moisture of air during breathing. absorb moisture from air entering in transformer. provide cold air in transformer. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines Dynamic braking can be used for All of these shunt motors. series motors. compound motors. All of these shunt motors. series motors. compound motors. ANSWER DOWNLOAD EXAMIANS APP
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