EI2201 ELECTRICAL MACHINES Syllabus for EIE,ICE 3rd Semester - Anna University

EI2201                                              ELECTRICAL MACHINES                                                (Common to EIE & ICE)                                                                    


To impart basic knowledge on Electrical machines, principles and its behavior.


At the end of this course, student would have been exposed to:
·    Theory of structures, operating principle, characteristics, and applications of D.C and A.C
rotating machines and transformers in detail.
·    Introductory knowledge on Special Machines.

UNIT I             D.C. MACHINES                                                                                                     12
Construction of D.C. Machines - Principle and theory of operation of D.C. generator - EMF equation
- Characteristics of D.C. generators - Armature reaction Commutation - Principle of operation of D.C. motor - Voltage equation - Torque equation - Types of D.C. motors and their characteristics Starters - Speed control of D.C. motors - Applications.

UNIT II            TRANSFORMERS                                                                                                    9
Principle - Theory of ideal transformer - EMF equation - Construction details of shell and core type transformers - Tests on transformers - Equivalent circuit - Phasor diagram - Regulation and efficiency of a transformer - Introduction to three - phase transformer connections.

UNIT III           SYNCHRONOUS MACHINES                                                                                  8
Principle of alternators:- Construction details, Equation of induced EMF and Vector diagram - Synchronous motor:- Starting methods, Torque, V curves, Speed control and Hunting.

UNIT IV          INDUCTION MACHINES                                                                                           9
Induction motor:- Construction and principle of operation, Classification of induction motor, Torque equation, Condition for maximum torque, Equivalent Circuit, Starting methods and Speed control of induction motors.

UNIT V           SPECIAL MACHINES                                                                                                7
Types of single phase motor Double revolving field theory Cross field theory Capacitor start capacitor run motors Shaded pole motor Repulsion type motor Universal motor – Hysteresis motor - Permanent magnet synchronous motor Switched reluctance motor Brushless D.C motor.



1.  Nagrath, I.J., and Kothari, D.P., Electrical Machines, Tata McGraw - Hill, 1997.
2.  Fitzgerald A.E, Kingsley C., Umans, S. and Umans S.D., Electric Machinery,  McGraw-    Hill, Singapore, 2000.

1.  Theraja, B.L., A Text book of Electrical Technology, Vol.II, S.C Chand and Co., New Delhi,
2.  Del Toro, V., Electrical Engineering Fundamentals, Prentice Hall of  India, New Delhi, 1995.
3.  Cotton, H., Advanced Electrical Technology, Sir Isaac Pitman and Sons Ltd., London, 1999.

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