Synchronous Motors If the synchronous motor, properly synchronised to the supply is running on no load and is having negligible loss then the stator current will be zero the stator current will be very high the stator current will be very small the back e.m.f. will be more than the supply voltage the stator current will be zero the stator current will be very high the stator current will be very small the back e.m.f. will be more than the supply voltage ANSWER DOWNLOAD EXAMIANS APP
Synchronous Motors A synchronous motor develops maximum power when load angle is 90° 60° 120° 45° 90° 60° 120° 45° ANSWER DOWNLOAD EXAMIANS APP
Synchronous Motors The speed regulation of a synchronous motor is always 1% Positive Zero 0.5% 1% Positive Zero 0.5% ANSWER DOWNLOAD EXAMIANS APP
Synchronous Motors The standard full-load power factor ratings for synchronous motors are zero or 0.8 leading unity or 0.8 lagging unity or zero unity or 0.8 leading zero or 0.8 leading unity or 0.8 lagging unity or zero unity or 0.8 leading ANSWER DOWNLOAD EXAMIANS APP
Synchronous Motors A synchronous motor can develop synchronous torque while over-excited below or above synchronous speed only at synchronous speed when under loaded while over-excited below or above synchronous speed only at synchronous speed when under loaded ANSWER DOWNLOAD EXAMIANS APP
Synchronous Motors The induced e.m.f. in a synchronous motor working on leading power factor will be equal to the supply voltage None of these more than the supply voltage less than the supply voltage equal to the supply voltage None of these more than the supply voltage less than the supply voltage ANSWER DOWNLOAD EXAMIANS APP
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