This document outlines the topics and learning outcomes for the Electrical Machines-II course. The course will cover six topics: 1) three-phase alternators, 2) three-phase synchronous motors, 3) starting and braking of DC motors, 4) starting, braking and speed control of three-phase induction motors, 5) electronic motors, and 6) motor insulation systems and protection. For each topic, the document lists the key concepts and analysis that students will learn to understand the operating principles and applications of various electric motors.

1. Electrical Machines-II
6th Semester, EE and EEE
By
Dr. Binod Kumar Sahu
Associate Professor, Electrical Engg.
Siksha ‘O’ Anusandhan, Deemed to be University,
Bhubaneswar, Odisha, India
introduction

2. 2
Rotating Electrical Machines
ACDC
Permanent
Magnet
Wound
Field
Separately
Excited
Self
Excited
Synchronous Induction
Brushless DC
Hysteresis
Sine wave
Reluctance
Permanent
Magnet
Wound Field
Salient Pole
Non-salient
Pole
Three Phase
Single Phase
Wound Rotor Squirrel Cage
Split Phase Shaded Pole
Universal
Resistance
Start
Capacitor
Start
Capacitor Start
Capacitor Run

3. Topics to be covered: -
3
1. Three-Phase Alternator.
2. Three-Phase Synchronous Motor.
3. Starting & Breaking of DC Motor.
4. Starting, Breaking and Speed Control of three-phase Induction Motor.
5. Electronic Motors.
6. Motor Insulation System.
7. Motor Protection.

4. 4
Toipc-1 Alternator
Learning Outcomes: -
Students will be able to:
 Classify different types of alternators from application and construction point of
view.
 Know various terms related to three-phase AC winding.
 Analyse the effect of short-pitched and distributed winding.
 Analyse the effect of armature reaction.
 Determine voltage regulation of cylindrical pole type alternator using EMF, MMF
and ZPF method.
 Analyse the effect of saliency in salient pole alternator.
 Determine the voltage regulation in salient pole alternator.
 Know the process of synchronizing two alternators and one alternator with
infinite bus.
 Analyse the effect of varying excitation and mechanical power input on an
alternator operating in synchronism with another alternator or an infinite bus.

5. 5
Toipc-2 Synchronous motors
Learning Outcomes: -
Students will be able to:
 Know the principle of operation of synchronous motor.
 Understand the various starting methods employed for starting a synchronous
motor.
 Analyse the power angle equation for both types of synchronous motors.
 Analyse the effect of varying excitation and mechanical load on a synchronous
motor.
 Design the rating of a suitable synchronous motor for power factor improvement.

6. 6
Toipc-3 Starting and Braking of
DC Motor
Learning Outcomes: -
Students will be able to:
 Know the necessity of starter for a DC motor.
 Design a suitable starting resistance for a DC motor.
 Understand the various methods adopted for braking a DC motor and analyse the
behaviour of DC motor under various braking modes of operation.

7. 7
Toipc-4 Starting, Braking and
Speed Control of 3-Phase
Induction Motor
Learning Outcomes: -
Students will be able to:
 Know the necessity of starter for an induction motor.
 Analyse the various methods of starting an induction motor.
 Understand the various methods adopted for braking an induction motor and analyse
the behaviour of induction motor under various braking modes of operation.
 Know the various methods of speed control of an induction motor.

8. 8
Toipc-5 Electronic Motors
Learning Outcomes: -
Students will be able to:
 Understand the basic concept of electronic motors their types, working principles
and applications.

9. 9
Toipc-6 Motor insulation
systems
Learning Outcomes: -
Students will be able to:
 Know the various types of insulations available for motor system.
 Choose a proper insulation for a particular motor application.

10. 10
Toipc-7 Motor Protection
Learning Outcomes: -
Students will be able to:
 Know the various types of protection schemes available for electric motors to
improve their reliability.

11. 11
Thank you