Page 191 - Electronic Mechanic - TP - Volume - 2

ELECTRONICS MECHANIC - CITS

PARTS and Working

Universal Motor

A universal motor is a type of electric motor that can be powered by either AC or DC power and uses an
electromagnet as its stator to generate a magnetic field. It is a commutated series wound motor, with the stator
field coils connected in series with the rotor windings through a commutator. The universal motor is structurally
very similar to a DC series motor but slightly modified to operate with AC power.
Selector Switch
A Mechanical Switch That can be rotated Left, right, or center to open or close the electrical contacts is known as
a Selector switch. The Main Function of This Selector Switch is to Control Devices and also to Switch Between a
Minimum of 2 or Above Electrical Circuits.
Pin plug point

The Three-pin plug tops are used on appliances, extension leads, Light fittings, etc. The Packaging Comes with
Wiring Instructions For the Electrician. A transparent cover makes it visually easy to Keep an Eye on the Wiring
Connections. Three-Pin Plugs are Designed so That Mains Electricity can be Supplied to Electrical Appliances
Safely. A 3-Pin Plug Consists of 3-pins. Each Pin Must be Correctly Connected to the Three Wires in the Electrical
Cable. Each Wire Has its Own Specified Color so that it can be easily identified.

Overload Relay
Overload Protection is Protection against a Running Over current That Would Cause Overheating of The Protected
Equipment. Hence, An Overload is Also a Type of Over current. Overload Protection Typically Operates on an
Inverse Time curve where the Tripping Time becomes less as the Current Increases. This Overload Protector is
an Essential Component for Many Sockets. The Top-Quality Overload Protector can Effectively Protect Electrical
Products from Power Surges.

Result: Thus the parts of the Mixer/ Grinder has been identified and demonstrated successfully.

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CITS : E & H - Electronics Mechanic - Exercise 167