Electrical Machines In electric locomotive which of the following motor are used ? Shunt motor. DC series motor. Separately compound motor. Synchronous motor. Shunt motor. DC series motor. Separately compound motor. Synchronous motor. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines A single phase, 2 KV alternator has an armature resistance of 0.8 ohms and 4.94 ohms respectively. The voltage regulation of the alternator at 100 a load 0.8 loading power factor is 7%. 14%. 8.9%. 0%. 7%. 14%. 8.9%. 0%. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines Which of the following statement is correct, if short circuit ratio is high? Low short circuit current High voltage regulation None of these Good voltage regulation Low short circuit current High voltage regulation None of these Good voltage regulation ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines The direction of rotation of a 3 - Φ induction motor can be reversed by transposing all the three leads from the supply. transposing any two leads from slip rings. transposing any two leads from supply. disconnecting any one phase. transposing all the three leads from the supply. transposing any two leads from slip rings. transposing any two leads from supply. disconnecting any one phase. ANSWER DOWNLOAD EXAMIANS APP
Electrical Machines In 3 - Φ induction motor some times copper bars are placed deep in the rotor to improve power factor. improve starting torque. reduce copper loss. improve efficiency. improve power factor. improve starting torque. reduce copper loss. improve efficiency. 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
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