Synchronous Motors The back e.m.f. of a synchronous motor depends on load angle speed All of these load load angle speed All of these load ANSWER DOWNLOAD EXAMIANS APP
Synchronous Motors When load on an over-excited or under excited synchronous motor is increased, rate of change of its armature current as compared with that of power factor is more twice equal less more twice equal less 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 100 cycles/second None of the listed here 25 cycles/ second 50 cycles/second 100 cycles/second None of the listed here 25 cycles/ second ANSWER DOWNLOAD EXAMIANS APP
Synchronous Motors The mechanical power developed by a synchronous motor is independent of _________. Speed Field excitation Applied stator voltage Torque angle Speed Field excitation Applied stator voltage Torque angle ANSWER DOWNLOAD EXAMIANS APP
Synchronous Motors A synchronous motor delivers reactive power when ______ Under excited Over excited None of the listed here Normally excited Under excited Over excited None of the listed here Normally excited ANSWER DOWNLOAD EXAMIANS APP
Synchronous Motors A synchronous motor can be used as a synchronous capacitor when it is Under excited Under loaded Over loaded Over excited Under excited Under loaded Over loaded Over excited ANSWER DOWNLOAD EXAMIANS APP
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