MODULE 1: 

 Principle of Operation of three phase alternators, Constructional features, Types of Armature Windings(detailed winding diagram not required), EMF equation, Numerical Problems.

Harmonics-causes, suppression, Rating of alternators, Parameters of armature winding, Armature reaction, Equivalent Circuit, Phasor Diagram, Load characteristics, Power Flow Equations.

VIDEO PLAYLIST LINKS : CLICK HERE www.youtube.com/watch?v=9BKh-9CHXlc&list=PLU9qGTRXUDkmvPnP0sf9Jj0yDiQOF7AgS 

MODULE 1 SYLLABUS OVERVIEW AND FREQUENTLY ASKED QUESTIONS

MODULE 2 

    Voltage regulation of three phase Alternators-Direct loading, EMF Method, MMF Method, Potier Method,ASA Method -Numerical      Problems.

Blondel’s two reaction theory, Phasor Diagram under lagging power factor, Determination of Xd and Xq by slip test, Power developed by a Salient pole machine, Numerical Problems.

Parallel Operation of Alternators- Necessary Conditions, Synchronisation- Synchronising current, Power and Torque, Effect of reactance, Numerical Problems, Methods of Synchronisation.

MODULE 3  

Principle of Synchronous Motor, Equivalent circuit, Phasor diagrams, Power flow diagram and equations, Losses and efficiency -Numerical Problems, Power-angle Characteristics, V Curve and Inverted V Curves.

Three phase Induction motor – Constructional features, Expressions for Power and Torque- Torque- Slip characteristics, Phasor diagram, Equivalent Circuit of Induction motor- Tests on Induction motors for determination of equivalent circuit-Numerical Problems.

MODULE 3 SYLLABUS OVERVIEW AND FREQUENTLY ASKED QUESTIONS

MODULE 4 

Performance of three phase Induction motors using Circle diagram, Numerical Problems. Cogging and Crawling in cage motors, Double cage Induction motor-Torque-Slip Characteristics.

Starting of Induction motors – Types of Starters – DOL starter, Autotransformer Starter, Star- Delta starter, Rotor Resistance Starter-Numerical Problems.

Braking of Induction motors – Plugging, Dynamic braking, Regenerative braking, Speed control – Stator Voltage control, V/f control, Rotor Resistance Control.

MODULE 5

Induction generator – Principle of operation, Grid Connected and Self Excited Operation of Induction Generators, Torque-Slip Characteristics of an Induction machine.

Single phase Induction motors-Double field revolving theory, Equivalent Circuit, Torque- Slip Characteristics, Types of Single Phase Induction motor, Applications.

Selection of AC motors for different applications.

SYLLABUS DOWNLOAD IN PDF FORMAT :

Click the link : drive.google.com/file/d/19cLbGoAl_7RkrNdSVcIDg8iw6xNUNzUz/view?usp=sharing 

UNIVERSITY PREVIOUS YEAR QUESTIONS:

DEC 2022:drive.google.com/file/d/1pArVNRs03JL77xtYfQeHg4wELcva0zKf/view?usp=sharing 

DEC 2021: drive.google.com/file/d/1eMo6rHTHndfrr4D-Jalo3S8jA9KM--L9/view?usp=sharing 

Text Books

1.  Bimbra P S, Electric Machines, Khanna Publishers, 2ndedition, 2017.

2.  KothariD. P., NagrathI. J., Electric Machines, Tata McGraw Hill, 5thedition.2017.

3.   Say M G, The Performance and Design of AC Machines, CBS Publishers, New Delhi, 3rdedition, 2002.

4.  Alexander SLangsdorf, “Theory of Alternating Current Machinery”, Tata McGraw Hill,2nd revised edition, 2001.

Reference Books

1.   Deshpande M. V., Electrical Machines, Prentice Hall India, New Delhi, Eastern Economy Edition, 2011.

2.   Gupta B R, VandanaSinghal, “Fundamentals of Electric Machines”, New Age International,.2010.

3.   Ashfaq Husain, HaroonAshfaq, Electric Machines, DhanpatRai and Co., 3rd edition,2002.

4.   Gupta J B, “Theory and Performance of Electrical Machines”, S K Kataria& Sons, 14thedition, 2013.

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