Course Details

Subject {L-T-P / C} : EE3011 : Electrical Machines { 3-0-0 / 3}

Subject Nature : Theory

Coordinator : Prof. Venkata Ramana Naik N.

Syllabus

Module 1: Single Phase Transformer:
Review of EMF equation and equivalent circuit, phasor diagrams on lo load and full load, per-unit representation of transformer parameters, voltage regulation, losses and efficiency, OC and SC test, all-day efficiency, parallel operation of transformers.
…………….. (8 hours)
Module 2: Three-Phase Transformer:
Construction of various types, operating characteristics of star–star, star–delta, delta – star, delta – delta, open – delta connections, vector groups.
…………….. (6 hours)

Module 3: D.C. Motor:
Review of EMF and torque equations, classification, losses and efficiency, Swinburne’s test & Hopkinson’s test, torque /speed characteristics, and speed control of shunt and series motors.
…………….. (8 hours)

Module 4: Induction Machine:
Three phase induction motor: Construction and principle of operation, equivalent circuit and phasor diagram, torque-slip characteristics, no load and blocked rotor test, starting and speed control. Single phase induction motor: Principle of operation, torque-slip characteristics, starting methods.
…………….. (8hours)

Module 5: Synchronous Machines:
Constructional features, synchronous generators and motors, equivalent circuit and phasor diagram, power and torque characteristics, voltage regulation of non-salient pole alternators by synchronous impedance method, V-curve and inverted-V curve, starting of synchronous motors.

…………….. (8 hours)

Course Objectives

Course Outcomes

1.Apply principles of electromechanical energy conversion in electrical machines <br />2.Identify different types of synchronous and induction machines and know the working principle <br />3.Basic calculation on synchronous and induction performance <br />4.Understand areas of application of synchronous and induction machines

Essential Reading

Supplementary Reading