MANIPAL INSTITUTE OF TECHNOLOGY
Manipal University, Manipal
Karnataka -576104
COURSE PLAN
Department
: ELECTRICAL & ELECTRONICS ENGG.
Course Name & code
: ELECTRICAL MACHINERY-I (ELE 2103)
Semester & branch
: THIRD (ELECTRICAL & ELECTRONICS ENGG.)
Name of the faculty
: Dr. VINOD V THOMAS
No of contact hours/week
:4
ASSESSMENT PLAN:
1. In Semester Assessments - 50 %

Written tests
: 2 Tests of 15 marks each

Surprise quizzes
: 5 Quizzes of 4 marks each
2. End Semester Examination - 50 %

Written examination of 3 hours duration (Max. Marks: 50)
Portions for Assignment
Assignment no.
Topics
1
L1-7; T1-2
2
L8-18; T4-5
3
L19-22; T7
Take home exercise: Winding - Design & Drawing
4
L23-32, T8-9
5
L33-38, T11
Portions for Sessional Test
Test no.
Topics
1
L1-18
2
L19-34
(Page 1 of 4)
MIT/GEN/F-01/R1
Course Plan
L. No.
L0
L1
Topics
Introduction: Transformer as a Power System Component, Types of transformers –
functional
Transformer: Working Principle, emf equation, Transformer ratios, Construction
details, Classification - construction
L2
Ideal Transformer and Practical Transformer, Equivalent circuit representation
L3
No-load & On-load phasor diagrams
T1
Tutorial on L1 to L3
L4
Losses in transformer; Separation of core losses; Efficiency, Maximum efficiency
L5
Voltage Regulation, variation with power factor, Zero & Maximum Voltage Regulation
L6
Testing of Transformers: OC & SC Test
L7
Determination Equivalent circuit parameters from OC and SC Test
T2
Tutorial on L5 to L7
A1
Assignment 1; Quiz 1
T3
Assignment 1-Discussion
L8
Polarity test, Sumpner's Test
L9
Power & Distribution transformers, All-day efficiency
L10
Auto-transformer, Copper saving
L11
Parallel operation of single phase transformers
T4
Tutorial on L8 to L11
L12
3 phase Transformers: Construction, Types
L13
Transformer bank, Voltage, Current and phase relationships
L14
Open delta connection; 3 phase to 6 phase conversion
L15
Scott connection, Phasor diagrams
T5
Tutorial on L12 to L15
L16
Inrush current, Excitation phenomena
L17
Three-winding transformer; Harmonics & suppression
L18
Tap changing, Transformer Cooling
A2
Assignment 2; Quiz 2
(Page 2 of 4)
MIT/GEN/F-01/R1
T6
Assignment 2-Discussion
Sessional 1
L19
Armature winding: DC & AC windings, Lap & wave, single/double layer;
i) DC double layer lap winding, winding table, winding development
L20
ii) DC double layer wave winding, winding table, winding development
L21
iii) AC double layer Lap winding, winding table, winding development
L22
iv) AC double layer wave winding, winding table, winding development
T7
Tutorial on L19 to L22
A3
Assignment 3
L23
Three Phase Induction Motor: Types, Construction, ratings, application.
L24
Working Principle, Rotating Magnetic Field, Slip, Rotor induced emf & frequency
L25
Equivalent circuit, Power flow, losses, efficiency, maximum efficiency
L26
Torque equation, starting & max torque, Complete torque-slip characteristics
T8
Tutorial on L23 to L26
L27
Determination of equivalent circuit parameters : No-load and Blocked rotor tests, Noload losses and its separation
L28
Circle diagram and its construction, Determination of operating parameters
T9
Tutorial on L27 to L28
L29
Starting considerations, DOL starter, Star-Delta starter, Auto-transformer starter,
Rotor resistance starter
L30
Speed control : Rotor resistance, variable voltage, variable frequency
L31
Deep bar and double cage induction motors, Cogging, Crawling
L32
Braking modes, Induction generator
A4
Assignment 4; Quiz 3
T10
Assignment 4-Discussion
L33
Single Phase Induction Motor: Construction, Types
L34
Working Principle, Double revolving field theory, Slip Torque Characteristics
Sessional 2
L35
DC Generators: Construction, Types, Principle, emf Equation
L36
Armature reaction, Demagnetization and Cross magnetization mmfs
L37
Commutation in DC Machines, Methods of improving commutation
(Page 3 of 4)
MIT/GEN/F-01/R1
L38
Magnetization, Internal & External Characteristics
T11
Tutorial on L35 to L38
A5
Assignment 5; Quiz 4
T12
Assignment 5- Discussion
References:
1. A Langsdorf, Theory of Alternating Current Machine (2 Ed.), TMH, 1994
2. M G Say, Alternating Current Machines (5 Ed.), ELBS, 1994
3. P S Bimbhra, Electrical Machinery (7 Ed.), Khanna publishers, 2004
4. I J Nagrath & D P Kothari, Electric Machines (2 Ed.), TMH, 1997
5. A K. Sawhney, Design of Electrical Machines, Dhanpat Rai, 1997
6. Parker Smith, Problems in Electrical Engineering, (9th Edition), 1984
Submitted by:
(Signature of the Faculty)
Date:
Approved by:
(Signature of HOD)
Date:
*********
(Page 4 of 4)
MIT/GEN/F-01/R1