Question

What is the function of

(a). armature.

(b). slip rings.

(c). brushes in ac generator.

Answer 1

Step 1: AC generator

1. An alternating current generator is a machine that converts mechanical energy into electrical energy.
2. Mechanical energy is supplied to the AC Generator via steam turbines, gas turbines, and combustion engines.
3. It generates alternating electrical power in the form of alternating voltage and current.

Step 2: Functions of the primary components of the generator

(a). Armature:

1. The first is to transport current across the field, resulting in shaft torque in a rotating machine or force in a linear machine.
2. The second function is to generate an Electromotive Force(EMF).

(b). Slip rings:

• The armature coil's two free ends are attached to two brass slip rings. These rings revolve in tandem with the armature coil and are insulated from the inside.
• A slip ring is an electromechanical device that allows power and electrical signals to be transmitted from a stationary to a rotating structure.
• This can be used in any electromechanical system where rotation is required while transmitting power or signals.

(c). Brushes:

• The current induced in the coil is discharged through the two carbon brushes, which are pushed against the slip rings. The brushes remain stationary and do not spin with the armature coil.
• Its function is to transfer current from the coil to the load connected in the electric generator's circuit.