What is armature of DC generator?

The armature of an electric machine is the name historically given to the winding where a voltage is induced and power transfer between electrical and mechanical systems occurs. It is a term used in dc machines and ac synchronous machines. In a dc machine, the armature is the rotating circuit.

Why the armature core of a DC generator is laminated Mcq?

The armature of DC generator is laminated to Reduce eddy current loss.

Which part of a dc machine should be laminated?

In a dc machine, the laminated parts are the armature core and. base. yoke. shaft.

Which part of DC motor is laminated?

Armature core is made with silicon steel. It is laminated to reduce the eddy current losses. In a DC machine, open slots are use to reduce leakage flux, inductance, and leakage reluctance.

What is generator armature?

The armature is the winding to which the load is connected. In small generators, the field windings are often on the stator, and the armature windings are on the rotor. Most large machines, however, have a rotating field and a stationary armature. A synchronous motor is virtually identical to a synchronous generator.

What is an armature and its components?

In electrical engineering, the armature is the winding (or set of windings) of an electric machine which carries alternating current. The armature can be on either the rotor (rotating part) or the stator (stationary part), depending on the type of electric machine.

Why is the armature of a DC machine made of silicon steel stampings?

To reduce eddy current loss. For the ease with which slots can be created. To achieve high permeability.

Is armature laminated?

The individual iron pieces that make up the armature are referred to as laminations. The top image depicts a solid armature, while the bottom image shows an armature made of five laminations. The sum of the eddy currents in the laminated core is smaller than the current in the solid core.

What is armature core in DC machine?

Armature core: Armature core is the rotor of a dc machine. It is cylindrical in shape with slots to carry armature winding. The armature is built up of thin laminated circular steel disks for reducing eddy current losses. It may be provided with air ducts for the axial air flow for cooling purposes.

What is armature core made of?

The core of the armature is made up of laminated thin metal plates instead of a single piece. The thickness of laminations depends on the supply frequency. It is approximately 0.5mm thick. The laminated silicon steel is used for the armature core to reduce the eddy current and hysteresis loss.

Where is the armature located?

The armature is the winding to which the load is connected. In small generators, the field windings are often on the stator, and the armature windings are on the rotor. Most large machines, however, have a rotating field and a stationary armature.

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