EE223
Unit I
Asynchronous machines : Three phase induction motors. Principle of operation. Cage and slip ring rotors.
Unit II
Torque-slip characteristics. Equivalent circuit. Starting and speed control.
Unit III
Single phase induction motors : Types. Applications. Universal Motor.
Unit IV
Selection of Drives : Electric drives. Individual and group drives. Factors governing selection of drives. Motors for domestic uses.
Unit V
Applications : Cranes, Lifts, General factory, Textile mills, Paper mills, Mining works, cement Mills, machine tools, Belt conveyors, Ships, Refrigeration and Air conditioning.
References
1. Theraja, B.L.,
Electrical Technology, Vol 2, S. Chand & Company, 1997.
2. Gupta, J.B.,
A Course in Electrical Power, S.K. Kataria & Sons, 1997.
3. Hughes, E.,
Electrical Technology, E.L.B.S. 1996.
4. Partab, H.,
Art & Science of utilization of Electrical Energy, Dhanpat Rai & Sons, 1997.
