Synchronous Motors The ratio of starting torque to running torque in a synchronous motor is Infinity One Two Zero Infinity One Two Zero ANSWER DOWNLOAD EXAMIANS APP
Synchronous Motors In a synchronous motor which loss varies with load ? Bearing friction loss Windage loss Copper loss Core loss Bearing friction loss Windage loss Copper loss Core loss ANSWER DOWNLOAD EXAMIANS APP
Synchronous Motors A synchronous motor with large air gap has All of the listed here A small value of inherent regulation A higher synchronizing power which makes the machine less sensitive to load variations A higher value of stability limit All of the listed here A small value of inherent regulation A higher synchronizing power which makes the machine less sensitive to load variations A higher value of stability limit ANSWER DOWNLOAD EXAMIANS APP
Synchronous Motors The rotor copper losses, in a synchronous motor, are met by armature input supply lines c. source motor input armature input supply lines c. source motor input ANSWER DOWNLOAD EXAMIANS APP
Synchronous Motors When a synchronous motor is on no load, the torque angle is about ________ 30° electrical 0° electrical 45° electrical 90° electrical 30° electrical 0° electrical 45° electrical 90° electrical ANSWER DOWNLOAD EXAMIANS APP
Synchronous Motors The net armature voltage of a synchronous motor is equal to the arithmetic difference of Eb and V vector sum of Eb and V vector difference of Eh and V arithmetic sum of Eb and V arithmetic difference of Eb and V vector sum of Eb and V vector difference of Eh and V arithmetic sum of Eb and V ANSWER DOWNLOAD EXAMIANS APP