Question: What are the functions of an armature coil and split ring in motor?

1) Armature- Rotates when electric current is passed hence its kinetic energy can be used for various purposes. 2) Brushes- Maintains contact of the armature coil with the main circuit while rotating. 3) Split Rings- Prevents the rotation of the main circuit while the rotation of armature coil.

What is the function of armature coil?

In electrical engineering, an armature is the component of an electric machine which carries alternating current. The armature windings conduct AC even on DC machines, due to the commutator action (which periodically reverses current direction) or due to electronic commutation, as in brushless DC motors.

What is the function of split ring?

Role of Split Ring in an Electric Motor

Split ring is used for reversing the direction of current in the coil. For the continuous rotation of the coil in the same direction, the current in the coil must be reversed.

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What is an armature give its function?

Armature – It is a rectangular coil that is placed in a uniform magnetic field. The main function of the armature is to rotate the shaft or axel to which it is attached. … The work of the split ring is to change the direction of current and which leads the rotation of the armature in the same direction.

What is the function of split ring and brushes in electric motor?

Brushes: It conducts current between stationary wires and moving parts, most commonly in a rotating shaft. Split Ring: It helps to reverse the direction of current in the circuit.

What is the function of commutator?

On DC and most AC motors the purpose of the commutator is to insure that the current flowing through the rotor windings is always in the same direction, and the proper coil on the rotor is energized in respect to the field coils.

What is the difference between rotor and armature?

The armature winding is that which generates or has an alternating voltage applied to it. … Thus, the armature is the stator and the field is the rotor. DC machines. In DC machines, both motors and generators, the armature is the rotor, and the field is the stator.

What is the difference between slip ring and split ring?

The slip ring use for transferring the power from static and rotary part of the machine. And the split ring uses for changing the polarity of the current. The slip ring is used in AC machine, whereas the split ring uses in the DC machine. … Whereas, the split ring uses for changing the polarity of the current.

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What is the function of split rings and carbon brushes?

Split commutators are rings that allow Direct current to move in the opposite direction to maintain a full rotation. Carbon Brushes are used to conduct the electricity. They are attached to the commutators, and the commutators are attached to the wire loop.

What is the function of split ring in electric motor Class 10?

The split ring in the electric motor also known as a commutator reverses the direction of current flowing through the coil after every half rotation of the coil. Due to this the coil continues to rotate in the same direction.

What is meant by armature control?

Armature control is the most common control technique for DC motors. In order to implement this control, the stator flux must be kept constant. To achieve this, either the stator voltage is kept constant or the stator coils are replaced by a permanent magnet.

What does armature mean?

1 : an organ or structure (such as teeth or thorns) for offense or defense. 2a : a piece of soft iron or steel that connects the poles of a magnet or of adjacent magnets.

What is the role of brushes in motor?

IN ELECTRIC MOTOR the function of brushes is to make contact with the rotating rings and through them to supply current to the coil. function of commutator in an electric motor is to reverse the direction of current through the coil periodically.

What would happen if there was no split ring commutator?

Answer. Explanation: Without a split ring commutator the current would not reverse when armature reverses, and the magnetic fields of the rotor and stator would clash and the rotor will stick in a position and not turn.

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Why is a split ring commutator needed in a DC motor?

To keep the torque on a DC motor from reversing every time the coil moves through the plane perpendicular to the magnetic field, a split-ring device called a commutator is used to reverse the current at that point.

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