Electrical Machines In a transformer zero voltage regulation is achieved at a load power factor which is zero lagging unity leading zero lagging unity leading ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines The power developed by salient pole synchronous machine is/are None of these power due to saliency or reluctance only excitation power only both 1 and 2 None of these power due to saliency or reluctance only excitation power only both 1 and 2 ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines A DC Shunt Motor having shunt field resistance of 250 Ω and armature resistance of 0.5 Ω is connected to 250 V supply and load current of 21 A. What is the back emf generated ? 210 V 240 V. 150 V. 230 V. 210 V 240 V. 150 V. 230 V. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines In a synchronous motor, damper windings are provided on pole faces. rotor shaft. None of these stator frame. pole faces. rotor shaft. None of these stator frame. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines In IM the rotor lamination can be ________________ than stator laminations. thinner. rotor can not have any laminations. thicker. sipper. thinner. rotor can not have any laminations. thicker. sipper. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines In a transformer the magnetic coupling between the primary and secondary winding can be increased by using transformer oil of better quality. increasing the number of turns. using soft material for winding. using the magnetic core of low reluctance. using transformer oil of better quality. increasing the number of turns. using soft material for winding. using the magnetic core of low reluctance. ANSWER DOWNLOAD EXAMIANS APP
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