Synchronous Motors In a synchronous motor, the rotor copper loss are met by ______ Armature input Dc source Supply lines Motor input Armature input Dc source Supply lines Motor input ANSWER DOWNLOAD EXAMIANS APP
Synchronous Motors A synchronous motor can operate at Unity power factor only Lagging power factor only Lagging, leading and unity power factors Leading power factor Unity power factor only Lagging power factor only Lagging, leading and unity power factors Leading power factor ANSWER DOWNLOAD EXAMIANS APP
Synchronous Motors When the synchronous motor is pulled out of synchronism, the stator current _______ Is increased too much Remains unchanged Is decreased too much Becomes zero Is increased too much Remains unchanged Is decreased too much Becomes zero ANSWER DOWNLOAD EXAMIANS APP
Synchronous Motors The angle between the rotor poles and stator poles, in a synchronous motor, is known as Synchronising angle Power factor angle Angle of retardation Torque angle Synchronising angle Power factor angle Angle of retardation Torque angle ANSWER DOWNLOAD EXAMIANS APP
Synchronous Motors When a synchronous motor is on no load, the torque angle is about ________ 0° electrical 30° electrical 90° electrical 45° electrical 0° electrical 30° electrical 90° electrical 45° electrical ANSWER DOWNLOAD EXAMIANS APP
Synchronous Motors A synchronous motor runs at speed ranging from ______ 150 to 1800 rpm 1800 to 3600 rpm None of the listed here 3600 to 6000 rpm 150 to 1800 rpm 1800 to 3600 rpm None of the listed here 3600 to 6000 rpm ANSWER DOWNLOAD EXAMIANS APP
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