Synchronous Motors When load on a synchronous motor is increased, its armature current is increased provided, it is ______ Over-excited Under-excited Normally excited All of these Over-excited Under-excited Normally excited All of these ANSWER DOWNLOAD EXAMIANS APP
Synchronous Motors The maximum speed variation in a 3 phase synchronous motor is Zero 4 percent 2 percent 10 percent Zero 4 percent 2 percent 10 percent ANSWER DOWNLOAD EXAMIANS APP
Synchronous Motors Slip rings in a synchronous motor carry All of the listed here No current Alternating current Direct current All of the listed here No current Alternating current Direct current ANSWER DOWNLOAD EXAMIANS APP
Synchronous Motors A synchronous motor develop maximum power when load angle is 120° 60° 90° 45° 120° 60° 90° 45° ANSWER DOWNLOAD EXAMIANS APP
Synchronous Motors A synchronous motor can develop synchronous torque only at synchronous speed while over-excited when under loaded below or above synchronous speed only at synchronous speed while over-excited when under loaded below or above synchronous speed ANSWER DOWNLOAD EXAMIANS APP
Synchronous Motors If a synchronous motor is operating at a supply frequency of 50 cycles/second, then, rotor revolves at ______ 50 cycles/second 25 cycles/ second None of the listed here 100 cycles/second 50 cycles/second 25 cycles/ second None of the listed here 100 cycles/second ANSWER DOWNLOAD EXAMIANS APP
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