# The coupling angle or load angle of synchronous motor is defined as the angle between the?

23 views

The coupling angle or load angle of synchronous motor is defined as the angle between the rotor and the stator poles of opposite polarity.

## Related questions

The synchronous motor will develop maximum power when the load angle is?

What is the maximum value of torque angle in synchronous motor?

If the load of the normally excited synchronous motor is increased the power factor will?

The synchronous motor which works on leading power factor and does not drive any mechanical load is called?

The maximum constant load torque under which a synchronous motor will pull into synchronism at rated rotor supply voltage and frequency is known as?

In a synchronous motor which losses varies with load?

The effect of increasing load on a synchronous motor running with normal excitation is (A) Increase both its Ia and power factor. (B) Decrease Ia, but increase power factor. (C) Increase Ia, but decrease power factor (D) Decrease both Ia and power factor.

In synchronous motor, does the winding losses vary with load?

Torque angle for the synchronous machine is the angle between (A) stator magnetic field and rotor magnetic field (B) stator magnetic field and net magnetic field in the air gap (C) rotor magnetic field and net magnetic field in the air gap (D) excitation voltage and impedance voltage drop

The power factor angle and torque angle of a salient pole synchronous generator drawing a current of 1.0 pu from a lagging load are 45o and 15o, respectively. The direct axis and quadrature axis currents, respectively, are (A) 0.5 pu, 0.866 pu (B) 0.866 pu, 0.5 pu (C) 0.707 pu, 0.707 pu (D) 0.5 pu, 0.5 pu

Which motor have more efficiency, synchronous motor or induction motor?

A synchronous motor has better power factor as compared to that of an equivalent induction motor. This is mainly because?

Can we use the synchronous motor as the synchronous capacitor?

If the field of synchronous motor is under excited, power factor will be?

The maximum torque which a synchronous motor will develop at rest for any angular position of the rotor, at rated stator supply voltage and frequency, is known as?

If we change the excitation of synchronous machine will it affect on motor speed?

How can we reverse the direction of rotation of synchronous motor?

The back emf of synchronous motor depends on?

The damping winding in synchronous motor is generally used to?

what will happen when excitation of an unloaded salient pole synchronous motor suddenly gets disconnected?

An unexcited single phase synchronous motor is ?

what is the difference between synchronous and asynchronous motor?

Hunting in synchronous motor cannot be due to?

A synchronous motor can be made self starting by providing?

Synchronous motor always runs at which speed?

Three phase synchronous motor will have how many sliprings?

Why does the speed of a DC shunt motor decrease as the load increases?

A three-phase synchronous motor connected to ac mains is running at full load and unity power factor. lf its shaft load is reduced by half and field current is held constant then its new power factor will be

In a synchronous generator if the excitation increased from a low value to normal value, with a fixed load  (A) The armature current increases and the power factor decreases  (B) The armature current decreases and the power factor also decreases  (C) The armature current decreases and the power factor increases but is lagging  (D) The armature current decreases and the power factor increases and is leading

In a synchronous generator delivering lagging power factor load  (1) the excitation emf leads terminal voltage by the power angle (2) the excitation emf lags terminal voltage by the power angle (3) excitation emf leads the terminal voltage by the power factor angle (4) excitation emf lags the terminal voltage by the power factor angle