Wiring of simple light circuit for controlling fan point.

Experiment No: – 03

Aim of the experiment:

Wiring of simple light circuit for controlling fan point.

Apparatus Required: –

Sl. No.	Name	Specification	Quantity
01	Mica sheet switch board	6’’ x 10’’	1 no.
02	Switch	5A, 250V	1 no.
03	Fuse	5A,	1 no.
04	Regulator	electronics type	1 no.
05	Fan	60W, 250V, 1200mm	1 no.
06	Connecting Wire	PVC Insulated Copper	As per required
07	Wire cutter		1 no.
08	Tester		1 no.
09	Screw		As per required

Circuit Diagram: –

Theory: –

The rotation mechanism of the ceiling fan is built in way so as to attract the warm air upwards. As the hot air rises up, the blades of the fan slice this air and push it down. This being a continuous process causes the air in the room to circulate in the entire room. Thus, a ceiling fan only moves the air around. Contrary to the common belief, fans do not exactly cool. Rather they speed up the process of evaporation of sweat on our body, which naturally makes us feel ‘cool’

The ceiling fan has a motor that converts electrical energy into mechanical energy. First, the capacitor of the ceiling fan torques up the electric motor, thereby causing it to start and run. As the electrical current reaches the motor, it enters coils of wire that are wrapped around a metal base. When this current passes through the wire, it creates a magnetic field which further exerts force in a clockwise motion. In this way, the electric energy is converted into mechanical energy and causes the motor coils to spin. The blades attached to the motor also start gaining motion with the spinning of the coils.

Parts Of A Ceiling Fan: –

a.  The electric motor.

b. A capacitor.

c. Blades, that are generally made from iron, aluminium, or plastic.

d. Flywheel – a metal or plastic or tough rubber double-torus which is attached to the motor shaft.

e. Encasement that houses the electric motor.

Type Of Motor Is Used In A Ceiling Fan

In conventional ceiling fans, single phase induction motor is used. These motors consume minimum power and hence, are also known as fractional kilowatt motors. A single phase induction motor requires only one power phase for operating. It converts the electrical energy from the power input into mechanical energy. Single phase induction motors are used in ceiling fans owing to their simple design and the fact that they are easy to repair.

Procedures: –

1. Arrange all the apparatus on the mica sheet switch board.
2. Mark the position for fittings of fuse, switch, and regulator.
3. Connect all the apparatus as per per circuit diagram.
4. Give the power supply and check the circuit.

Precaution: –

1. Connection should be tight and proper as per circuit diagram.
2. Don’t give the power supply to the circuit before concerning the respective teacher.

Conclusion: –

Written by student.