EI25C10 Electrical Machines and Drives Syllabus:

EI25C10 Electrical Machines and Drives Syllabus – Anna University UG Syllabus Regulation 2025

Course Objective:

This course provides foundational knowledge of AC and DC machines, including their construction, operation, testing, and control. It introduces special machines and power electronic devices with an emphasis on switching characteristics. The course also covers DC and AC drives, their control strategies, and integration using power electronic circuits.

DC Generator
Construction of D.C. Machines – DC Generator: Principle of operation, Characteristics.
Activities:
Simulate the open circuit characteristics of DC shunt generator, Load characteristics of DC shunt generator using simulation software.

DC Motor
DC Motor: Principle of operation, Types, Torque equation, Characteristics, Speed Control.

Transformers
Transformer – Principle – Theory of ideal transformer – EMF equation – Construction details of shell and core type transformers – Regulation and Efficiency – Tests on transformers.
Activities:
Group seminar on no-load and load test on transformers.

Three-Phase Induction Motor
Three-phase Induction Motor: Construction and principle of operation, Torque and torque-slip characteristics, Efficiency, Applications, Starting methods, Speed control of induction motor.

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

Drives And Control
Static and Dynamic equations of DC and AC machines – Electrical braking – Rectifier and chopper control of DC drives – Open loop and Closed loop schemes for DC and AC drives. – Servo drives VFD.

Tasks:

T1: Compare the different types of dc generator by their construction, characteristics and applications.
T2: Distinguish different types of dc motors by their construction, operating principle, characteristics and applications.
T3: Analyze the operating principle, construction types and tests to determine model parameters of a single phase transformer.
T4: Investigate working principle, speed-torque relationship, and starting techniques used for 3-phase squirrel cage and slip ring induction motors.
T5: Analyze the operating principle and switching characteristics of power diodes, power BJT, power MOSFET, IGBT and SCR.
T6: Using static and dynamic equations investigate various modes operation and different control techniques of dc dives and analyze the closed loop control of ac drives.

Weightage: Continuous Assessment: 40%, End Semester Examinations: 60%.

Assessment Methodology: Assignments (20%), Solution to application-oriented problems using software (20%), Review of GATE questions (20%), Internal Examinations (40%).

References

1. Fitzgerald, A. E., Kingsley, C., & Umans, S. D. (2003). Electric machinery (6th ed.). McGraw-Hill.
2. Theraja, B. L. (2007). A textbook of electrical technology (Vol. II). S. Chand and Co.
3. Mohan, U., Undeland, T. M., & Robbins, W. P. (1995). Power electronics: Converters, applications, and design. John Wiley & Sons.
4. Del Toro, V. (1995). Electrical engineering fundamentals. Prentice Hall of India.
5. Cotton, H. (1999). Advanced electrical technology (6th ed.). Sir Isaac Pitman and Sons Ltd.
6. Vasudevan, K. (n.d.). Lecture series on Electrical Machines I and II. Indian Institute of Technology Madras.

e-Resources

NPTEL Lecture Series on Power Electronics by Dr. B.G. Fernandes, IIT
Bombay.
List of Open Source Software / Learning Websites
1. https://nptel.ac.in/courses/108106072
2. https://nptel.ac.in/courses/108105131
3. https://lecturenotes.in/notes/69764-note-for-electrical-drives-and-controls-edcby-bhuvaneswari-c
4. https://electrical-engineering-portal.com/download-center/books-and-guides/automation-control/electrical-machines-and-drives
5. https://nptel.ac.in/courses/108102146
6. https://nptel.ac.in/courses/108106071
7. https://nptel.ac.in/courses/108104140