2K6AEI/ECE 303 : ELECTRICAL ENGINEERING

MODULE – I
DC Generator – E.M.F equation- Armature reaction – Commutation – interlopes – power flow diagram – losses and efficiency – voltage regulation – parallel operation – load sharing DC Motor- back E.M.F. – speed equation – torques – performance characteristics – power flow diagramlosses and efficiency – starter- two point and three point – swinburns test – thyristor control of series and shunt motor.
MODULE –II
Transformers- E.M.F. equation- equivalent circuit- losses and efficiency –all day efficiency- voltage regulation – phasor diagrams – OC and SC test- auto transformer- saving of copper – applications- CT and PT – applications Parallel operations of single phase and three phase transformers- three phase transformer connections- star to star- star to delta- delta to delta-applications
MODULE –III
Alternators- E.M.F. equation-effects of harmonics on pitch factor and distribution factor- voltage regulation- mmf and emf method- parallel operation – synchronization Synchronous motor- starting method- power developed by synchronous motor- applications- synchronous condenser
MODULE – IV
Three phase Induction motor- types – torque equations- torque slip and torque speed characteristics- power flow diagram – efficiency – equivalent circuit- induction generator Special machines – single phase FHP motor starting methods- double field revolving theory-types and applications – stepper motor –classifications and applications – servomotors – classifications and applications –shaded pole motors -applications

Text book
1. Hughes E., Electrical Technology, ELBS
2. P.S. Bimbra., Electrical Machines, Khanna Publishers
Reference books
1. Cotton H., Electrical Technology Pitman
2. Golding, Electrical measurements and measuring instruments, ELBS