Electrical Machines The principal of starting of 3 - Φ IM is similar to transformer with short-circuited secondary. repulsion motor type starting. capacitor run IM. synchronous motor. transformer with short-circuited secondary. repulsion motor type starting. capacitor run IM. synchronous motor. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines A DC series motor has which of the following characteristics? Has its field winding consinting of thick wire and less no of turns. Has a almost constant speed. Can be started easily without load. Has a poor torque. Has its field winding consinting of thick wire and less no of turns. Has a almost constant speed. Can be started easily without load. Has a poor torque. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines In a transformer maximum flux density is not constant, the eddy current loss varies as V V² f f² V V² f f² ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines In a 3 - Φ wound rotor induction motor the short circuit gear is used to short circuit the starting resistance in the starter. stator phases of the motor. None of these rotor at slip rings. starting resistance in the starter. stator phases of the motor. None of these rotor at slip rings. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines Which of the following represents the operating region of slip in a 1-phase induction motor? -1 < S < 1 0 < S < 2 -2 < S < 2 0 < S < 1 -1 < S < 1 0 < S < 2 -2 < S < 2 0 < S < 1 ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines Which of the following voltage regulator is preferred for providing large values of load current? Zener diode shunt regulator. None of these Transistor shunt regulator. Transistor series regulator. Zener diode shunt regulator. None of these Transistor shunt regulator. Transistor series regulator. ANSWER DOWNLOAD EXAMIANS APP
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