EEE :: Synchronous Motors
- Power factor of a synchronous motor is unity when
- In a 3-phase, 4-pole, 50 Hz synchronous motor, the frequency, pole number and load torque all are halved. The motor speed will be
- Which of the following motors is non-self starting ?
- Which of the following losses, in a synchronous motor, does not vary with load?
- Stability of a synchronous machine
- Which of the following methods is used to start a synchronous motor ?
- Which of the following resistances can be measured by conducting insulation resistance test on a synchronous motor ?
- Which of the following losses is not dissipated by the stator core surface in a synchronous motor ?
- The mechanical displacement of the rotor with respect to the stator, in polyphase multipolar synchronous motors running at full load, is of the order of
- A synchronous motor working at leading power factor can be used as
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