224. Electrical Machine I

FIRST TERM:
	Single phase Transformer: Construction and pi~, e m f equation, phasor diagram,
	equivalent circuit, testing of transformer, regulation and efficiencv, 
	parallel operation, Auto Transformer, reactance calculation and 
	mechanical stress, per unit system

	Three Phase Transformer: Transformer connections and vector groups, 
	harmonics, parallel operation, phase coriversi~ns and
	testing of 3-phase transf6rmer, cooling of transformer.

	D.C. Machine: Constructional features and types of D.C. Machine, 
	Windings, basic principle e.m.f., torque and speed equation, 
	Commutation and armature reaction.

SECOND TERM:
	Motor characteristic,. starting and speed control, testing and efficiency.

	Induction Machine: Basic theory and constructiQn, windings~ phasor diagram  
	and  equivalent circuit,  Torque-speed characteristics. 
	Effect of Rotor resistance, Testing and circle diagr~, 
	Deep bar and Double cage motors, starting and speed control. 
	3 ph~~ A,C. Commulator motor (Scharge Motor), Induction generator.

Texts / References

	1. 	Electric Machine, By Fitzerald and Kingsley (Tata McGraw Hill).		
	2.	Electric Machines, By Nagarath & Kothari (Tata McGraw Hill).
	3.	Alternating current Machines, By M.G. Say.