Stator And Armature

It is located inside the stator and its objective is to rotate so that in turn the motor shaft or generator rotates. So basically, the rotor consists of a field magnet which rotates while the rotor remains stationary and on the other hand the armature carries current and is stationary and part of the stator.

Can armature be a stator?

The armature can be on either the rotor (rotating part) or the stator (stationary part), depending on the type of electric machine.

Why armature is used as stator?

Greater amount of Copper can be accommodated if the Slot / Tooth is deeper and strong enough. If the Armature would have been on Rotor then Slot / Tooth would have been narrow and weaker. Thus armature on the Stator allows stronger and deeper Slot / Tooth.

What is the function of an armature?

The main role of an armature is multi purpose. The primary role is to transmit current across the field, therefore generating shaft torque within an active machine otherwise strength in a linear machine. The second role of an armature is to produce an EMF (electromotive force).

What is a stator in a motor?

The stator is the stationary component of electromagnetic circuits in motors. In different configurations, stators may act as field magnets that interact with the rotor to create motion, or as armatures that work with moving field coils on the rotor.

What is armature in dc machine?

A DC motor has coils of wire mounted in slots on a cylinder of ferromagnetic material, which is termed the armature. The armature is mounted on bearings and is free to rotate. It is mounted in the magnetic field produced by permanent magnets or current passing through coils of wire, which are called the field coils.

What is armature in alternator?

The revolving part of alternators can be the armature or the magnetic field. The revolving armature type has the armature wound on the rotor, where the winding moves through a stationary magnetic field. The revolving armature type is not often used.

What are the advantages of using armature as stator in a power generator?

An armature is one of the important parts of a generator including the magnetic field. In generators, The magnetic field lines have to be cut. Because the armature of a power generator is heavy, it is used as a stator ( stationary part ). This helps to eliminate the graphite brush and avoids sparks.

What is the difference between armature and commutator?

Armature	Commutator
It provides current to commutator from the core of the armature	It changes AC to DC & vice-versa
It is a set of coils arranged in the core	It is a set of segments

What is armature current in DC motor?

An armature controlled DC motor is a direct current (DC) motor that uses a permanent magnet driven by the armature coils only.

What is armature reaction in DC motor?

3.10 Armature reaction in d.c. generators. Armature reaction is the effect on the main field flux of that flux set up by the currents in the armature winding. The effect is the same for both lap- and wave-wound machines.

What are the 4 parts of an armature?

An armature is made up of a number of main components; the core, the commutator, the winding and the shaft.

Why is armature used in motor?

The function of an armature is multi-purposed. The main role is to conduct current over the field, thus generating shaft torque within an active machine. The secondary purpose of an armature is to produce Electromotive Force (EMF).

What does a armature do in an electric motor?

An armature is a device through which electric current is passed for generating torque (rotor). The current that passes through the rotor is sometimes called the armature current. The word "armature" refers to a device through which electric current is passed for generating torque.

What is a starter armature?

The armature is an electromagnet, mounted on the drive shaft and bearings for support. It is a laminated soft iron core which is wrapped with numerous conductors, loops or windings.

Why stator is used in DC motor?

In a DC motor, the stator provides a rotating magnetic field that drives the armature to rotate. A simple DC motor uses a stationary set of magnets in the stator, and a coil of wire with a current running through it to generate an electromagnetic field aligned with the centre of the coil.

What is a stator and how it works?

The stator is the coil of wire housed inside the engine case. A magnet on a shaft spins within the stator, creating alternating current (AC). That current travels along fairly heavy gauge wire through the case and into the rectifier/regulator which converts it to DC power, and at a consistent output.

Does a stator create spark?

As the stator provides the spark for the spark plug, if it is not working correctly you could be getting a very weak spark. This could be constant or completely irregular and sporadic. You may experience occasional misfiring as you ride around.

Where is armature winding in DC generator?

In DC machines, the drum type armature windings are used. In the case of drum type winding, the armature conductors (in the form of coils) are placed in the slots around the surface of cylindrical or drum shaped armature core.

How does a DC motor rotate?

When the motor is powered by DC current, a magnetic field is created within the stator, attracting and repelling the magnets on the rotor. This causes the rotor to start rotating. To keep the rotor rotating, the motor has a commutator.