IC3452 Electrical Machines and Drives Syllabus:

IC3452 Electrical Machines and Drives Syllabus – Anna University Regulation 2021

COURSE OBJECTIVES:

To impart basic knowledge on different AC& DC Machines.
 To introduce the concept of special machines to motivate the students to solve complex problems related to machines.
 To impart knowledge on testing and controlling of different machines.
 Comprehensive introduction to various power electronic devices, their structure, operating principle and characteristics.
 Overview on dc and ac drives and their control using power electronic circuits.

UNIT I DC MACHINES

Construction of D.C. Machines – DC Generator: Principle of operation – Characteristics- DC Motor: Principle of operation -Types-Torque equation-Characteristics.

UNIT II TRANSFORMERS

Transformer – Principle – Theory of ideal transformer – EMF equation – Construction details of shell and core type transformers – Tests on transformers.

UNIT III THREE PHASE INDUCTION MOTOR

Three phase Induction motor:- Construction and principle of operation – torque and toque-slip characteristics-Efficiency- Application-starting methods – speed control of induction motor.

UNIT IV POWER SEMICONDUCTOR DEVICES AND CHARACTERISTICS

Operating principle and switching Characteristics: Power diodes, Power BJT, Power MOSFET, IGBT, SCR, TRIAC.

UNIT V DRIVES AND CONTROL

Static and Dynamic equations of dc and ac machines – Electrical breaking – Rectifier and chopper control of DC drives– Open loop and Closed loop schemes for DC and AC drives(Block diagram approach only)

TOTAL : 30 PERIODS

SKILL DEVELOPMENT ACTIVITIES (Group Seminar/Mini Project/Assignment/Content Preparation / Quiz/ Surprise Test / Solving GATE questions/ etc)

1. Differentiate the switching characteristics of the semiconductor devices.
2. Design the SCR circuit with the help of two BJT and explain the switching characteristics for the same.
3. Elaborate the speed control of Induction motor and starting methods for the same.
4. Practically compare the characteristics of 3 induction motor and DC machines.
5. Discuss the no load and load test on transformers [Group seminar].

LIST OF EXPERIMENTS FOR MACHINES LAB

1. Open circuit characteristics of D.C. shunt generator.
2. Load characteristics of D.C. shunt generator.
3. Load test on D.C. shunt motor.
4. Speed control of D.C. shunt motor.
5. Open circuit and short circuit tests on single phase transformer (Determination of equivalent circuit parameters).
6. Load test on single phase induction motor.
Minimum of five experiments to be offered from the list. Additional one or two experiments can be framed beyond the list or curriculum

TOTAL : 30 PERIODS

COURSE OUTCOMES:

CO1 Ability to understand the terms associated with electrical machines
CO2 Ability to understand basic concepts and working principle of electrical machines
CO3 Ability to understand the performance characteristics of machines
CO4 Ability to identify suitable machines for carrying out interdisciplinary projects.
CO5 Ability to understand the motor operating principle and characteristics of motor
CO6 Ability to understand the motor operating principle and characteristics of transformer

TEXT BOOKS:

1. Fitzgerald A.E., Kingsley C., Umans, S. and Umans S.D., “Electric Machinery”, McGrawHill,Singapore, 2003. 6th Edition.
2. Theraja, B.L., “A Text book of Electrical Technology”, Vol.II, S.C Chand and Co., New Delhi, 2007
3. Mohan, Udeland and Robbins., “Power Electronics”, John Wiley and Sons, New York, 1995.

REFERENCES:

1. Del Toro, V., “Electrical Engineering Fundamentals”, Prentice Hall of India, New Delhi, 1995.
2. Cotton, H., “Advanced Electrical Technology”, Sir Isaac Pitman and Sons Ltd., London, 1999.
3. Lecture series on “Electrical Machines I” and “Electrical Machines II” by Dr.KrishnaVasudevan, IIT Madras.
4. NPTEL Lecture Series on “Power Electronics” by Dr.B.G.Fernandes, IIT Bombay.