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Course Detail

Course Name Electrical Machines I
Course Code 15EEE212
Program B. Tech. in Electrical and Electronics Engineering
Semester 4
Credits Campus: Bengaluru, Coimbatore, Amritapuri
Year Taught 2015
Year Taught 2016
Year Taught 2017
Year Taught 2018

Syllabus

Unit 1

Basics of electric and magnetic circuits, Principles of electromechanical energy conversion, Basic concepts of rotating machines, Dynamic Equation of Electromechanical Systems.

Unit 2

DC Machines: EMF and Torque, Circuit Model, Armature Reaction, Compensating Winding, Commutation, Methods of Excitation, Magnetization Characteristic, Selfexcitation, Types – shunt, series, compound generators and Characteristics of DC Generators, Types and Characteristics of DC Motors, Starting of DC Motors, Speed Control of DC Motors, Braking of DC Motors, Efficiency and Testing, Permanent Magnet DC Machine Applications.

Unit 3

Transformer: Construction and Practical Considerations, Transformer on No-Load, Ideal Transformer, Real Transformer and Equivalent Circuit, Transformer Losses, Transformer Testing, Efficiency and Voltage Regulation, Excitation Phenomenon in Transformers, Autotransformers, Three-phase Transformers, star-star, star-delta, zig-zag connection. Methods of cooling, Parallel Operation of Transformers, Threewinding Transformers.

Text Books / References

  • Kothari D. P. and Nagrath I. J., “Electric Machines”, Tata McGraw Hill Publishing Company Limited, New Delhi 2004.

References

  • M. G. Say, “Performance and Design of Direct Current Machines”, CBS publishers, New Delhi, 1993
  • Fitzgerald A. E., Charles Kingsley, Jr. and Stephen D. Umans, “Electric Machinery”, Tata McGraw Hill Publishing Company Limited, 2002
  • Albert E. Clayton, “The performance and design of direct current machines”, Tata McGraw Hill Publishing Company Limited, New Delhi, Third Edition, 1992.
  • S. K. Bhattacharya, “ Electrical Machines”, Tata McGraw-Hill Publishing Company Limited, New Delhi.

‘Electrical Machines I’ is a course offered in the fourth semester of B. Tech. in Electrical and Electronics Engineering program at School of Engineering, Amrita Vishwa Vidyapeetham.

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