Unit-1 Tools and materials used for electric wiring. Equipment based for determinations of different types of faults in electrical domestic appliances and machines. Types of faults in appliances and meters. Constructional features of table fan, cooling fan, exhaust fan. Types of windings used. Method of reversal of direction of motor, construction , working and maintenance of submercible motors.
Unit-2 Construction of A.C. & D.C. motor starters, fault finding in starters. Working and maintenance required for manual starter,Semi-automatic and automatic starters. Different types of relays used in starters. A.C. & D.C. study of direct on line starter. Different type of automatic timer system used in starter. Study of contacts used for different capacity of starter ( Air break and oil immersed ). Types of insulations & its applications.
Unit-3 Types of substations, importance of substations, equipments used in substations, Maintenance and repairs of transmission and distribution lines.
Unit-4 Different types of house and industrial wirings. Method of testing the installation, Megger and its use in testing. Methods of earthing. Study of I.S. for earthings.
Unit-5 Types of joints used in O.H. and cable, Methods of joints of copper and aluminum cable. Fluxing of lage. Use of various tools for jointing the cable Insulating materials used for joints. Types of joints in wiring.
BOOKS FRO REFERENCE :-
1. Operations & Maintenance of Electrical equipment Vol.-1 & 2.
- by B.V.S. Rao.
2. Electrical maintenance and Repairs.
- by J.C.Watts
3. Troubles of Electrical equipments
- by H.E.Stafferd.
4. Electrical Wiring estimating and Coasting.
- by S.L.Uppal.
5. Testing, Commissions, Operation and Maintenance of Electrical Equipment.
- by S. Rao.
>2.Linear Integrated Electronics
>3.Electrical Machine I
>4.Electrical Instruments & Measurements
<5.Elect. Installation & Maintenance
