Synchronous Motors The construction of a synchronous motor resembles an induction motor an alternator a rotary converter a series motor an induction motor an alternator a rotary converter a series motor ANSWER DOWNLOAD EXAMIANS APP
Synchronous Motors A synchronous motor can be used as a synchronous capacitor when it is Over loaded Over excited Under loaded Under excited Over loaded Over excited Under loaded Under excited ANSWER DOWNLOAD EXAMIANS APP
Synchronous Motors As the load is applied to a synchronous motor, the motor takes more armature current because The back e.m.f. decreases causing an increase in motor current The increased load has to take more current The rotor by shifting its phase backward causes motor to take more current The rotor strengthens the rotating field causing more motor current The back e.m.f. decreases causing an increase in motor current The increased load has to take more current The rotor by shifting its phase backward causes motor to take more current The rotor strengthens the rotating field causing more motor current ANSWER DOWNLOAD EXAMIANS APP
Synchronous Motors A 50 Hz synchronous motor runs at 200 rpm. The number of salient poles on the rotor are______ 36 30 None of the listed here 16 36 30 None of the listed here 16 ANSWER DOWNLOAD EXAMIANS APP
Synchronous Motors A synchronous motor develop maximum power when load angle is 90° 45° 120° 60° 90° 45° 120° 60° ANSWER DOWNLOAD EXAMIANS APP
Synchronous Motors The duration of sudden short circuit test on synchronous motor is usually about One minute One second One hour None of the listed here One minute One second One hour None of the listed here ANSWER DOWNLOAD EXAMIANS APP
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