Synchronous Motors An important advantage of a synchronous motor over wound round induction motor is that its speed is independent of supply frequency None of these its speed may be controlled more easily its power factor may be varied at will its speed is independent of supply frequency None of these its speed may be controlled more easily its power factor may be varied at will ANSWER DOWNLOAD EXAMIANS APP
Synchronous Motors A synchronous machine with low value of short-circuit ratio has good speed regulation lower stability limit good voltage regulation high stability limit good speed regulation lower stability limit good voltage regulation high stability limit ANSWER DOWNLOAD EXAMIANS APP
Synchronous Motors The construction of a synchronous motor ressembles An alternator An induction motor A rotary converter A series motor An alternator An induction motor A rotary converter A series motor ANSWER DOWNLOAD EXAMIANS APP
Synchronous Motors When pull-out torque occurs in a synchronous motor, the poles of the rotor are _______ Mid way between N and S poles of stator None of the listed here 45° (electrical) behind stator poles Coincident with statorbpoles Mid way between N and S poles of stator None of the listed here 45° (electrical) behind stator poles Coincident with statorbpoles ANSWER DOWNLOAD EXAMIANS APP
Synchronous Motors A synchronous motor delivers reactive power when ______ None of the listed here Over excited Under excited Normally excited None of the listed here Over excited Under excited Normally excited ANSWER DOWNLOAD EXAMIANS APP
Synchronous Motors The duration of sudden short-circuit test on a synchronous motor is usually about one minute one hour one second None of these one minute one hour one second None of these ANSWER DOWNLOAD EXAMIANS APP
EXAMIANS