Synchronous Motors A synchronous motor develops maximum power when load angle is 120° 60° 90° 45° 120° 60° 90° 45° ANSWER DOWNLOAD EXAMIANS APP
Synchronous Motors A synchronous motor is cheaper than 3-phase induction motor for _____ Low speed, high output High speed, low output None of the listed here High speed, high output Low speed, high output High speed, low output None of the listed here High speed, high output 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 less equal more twice less equal more twice ANSWER DOWNLOAD EXAMIANS APP
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 For reciprocating compressor, the synchronous motor is designed to have pull in torque of about ______ times the full load torque. 5 6 2 0.5 5 6 2 0.5 ANSWER DOWNLOAD EXAMIANS APP
Synchronous Motors The power factor correction capability of a loaded synchronous motor _____ with the increases in mechanical load. Increases Remains unchanged Decreases None of the listed here Increases Remains unchanged Decreases None of the listed here ANSWER DOWNLOAD EXAMIANS APP
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