The rotor of a hysteresis motor is made of?

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Answer :

The rotor of a hysteresis motor is made of chrome steel.

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Related questions

In a hysteresis motor, the rotor must have?

Last Answer : In a hysteresis motor, the rotor must have retentivity.

Locked rotor current of a shaded pole motor is?

Last Answer : Locked rotor current of a shaded pole motor is slightly more than full load current.

Describe with neat sketch working of hysteresis motor.

Description : Describe with neat sketch working of hysteresis motor.

Last Answer : Working: When stator is energized with single phase ac supply, rotating magnetic field is produced because of starting (auxiliary) and main windings, which remain in circuit permanently. The ... the principle of magnetic locking this motor either rotates at synchronous speed or not at all.

A hysteresis motor works on the principle of?

Last Answer : A hysteresis motor works on the principle of hysteresis loss.

The direction of rotation of an hysteresis motor is determined by?

Last Answer : The direction of rotation of an hysteresis motor is determined by position of shaded pole with respect to main pole.

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Ratio of the rotor reactance X to the rotor resistance R for a two-phase servo motor

Description : Ratio of the rotor reactance X to the rotor resistance R for a two-phase servo motor (A) is equal to that of a normal induction motor (B) is less than that of a normal induction motor (C) ... than that of a normal induction motor (D) may be less or greater than that of a normal induction motor

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The rotor developed by a single-phase motor at starting is?

Last Answer : The rotor developed by a single-phase motor at starting is zero.

An electric motor in which both stator field and rotor rotates with same speed is called?

Description : An electric motor in which both stator field and rotor rotates with same speed is called?

Last Answer : An electric motor in which both stator field and rotor rotates with same speed is called synchronous motor.

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Description : What is the rotor of a motor?

Last Answer : Rotor is the rotating or moving part in motor and generator.

A synchronous motor can be made self starting by providing?

Description : A synchronous motor can be made self starting by providing?

Last Answer : A synchronous motor can be made self-starting by providing damper bar.

The maximum constant load torque under which a synchronous motor will pull into synchronism...

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

Last Answer : The maximum constant load torque under which a synchronous motor will pull into synchronism at rated rotor supply voltage and frequency is known as pull-in torque.

As hysteresis motors are free from mechanical and magnetic vibrations therefore these are considered as suitable for?

Last Answer : As hysteresis motors are free from mechanical and magnetic vibrations therefore these are considered as suitable for sound equipment.

In dc machines, the armature windings are placed on the rotor because of the necessity for

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What is magnetic hysteresis? What is the cause of hysteresis?

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Last Answer : Magnetic hysteresis: When a magnetic material is subjected to cycle of magnetization, it is found that flux density (B) in the material lags behind applied magnetizing force (H). This ... the movement of orientation, due to which the flux density lags behind the magnetic field intensity.

State the factors affecting hysteresis loss.

Description : State the factors affecting hysteresis loss.

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Explain the hysteresis loop of a magnetic material with neat diagram.

Description : Explain the hysteresis loop of a magnetic material with neat diagram.

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Last Answer : Hysteresis is commonly found in ______ A) ferromagnetic materials B) ferroelectric materials C) both A and B D) none of these

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Description : The term hysteresis is associated with (A) On-Off control (B) P-I control (C) Feed forward control (D) Ratio control

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If the area of hysteresis loop of a material is large, the hysteresis loss in this material will be?

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Last Answer : If the area of hysteresis loop of a material is large, the hysteresis loss in this material will be large.

In a magnetic material hysteresis loss takes place primarily due to?

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Last Answer : In a magnetic material hysteresis loss takes place primarily due to it high retentivity.

What is the difference between eddy current and hysteresis loss?

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Last Answer : Loss occurred by magnetising and demagnetising process is called histerisis loss and the current flowed due to the magnetic field produced by the electric field applied is called eddy current losses

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Last Answer : Hysteresis loss: Hysteresis loss is a loss which occurs due to the friction of magnetic domain due to the change in magnetic field in ferromagnetic material like iron. Hysteresis loss causes power loss ... loss in transformer is given by, We=Kef2Kf2Bm2watts Skin effect limitations:

Brushes of DC machine are made up of ?

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Last Answer : Brushes of DC machine are made up of carbon.

From which material field coils of DC generator are made of?

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Last Answer : Field coils of DC generator are usually made of copper.

The bearings used to support the rotor shafts are generally?

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Salient pole rotor is use for which speed?

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A 3-phase, 4-pole, 50Hz induction motor runs at a speed of 1440 rpm. The rotating field produced by the rotor

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An 8-pole, 50Hz, three-phase induction motor is running at 705rpm and has a rotor copper loss of 5kW.

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