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TE Electrical (Semester-VI) Page 1
Shivaji University, Kolhapur
Department of Electrical Engineering
Course plans for T.E. (Semester-IV)
Scheme of Teaching & Examination
Sr.
No. Name Of Subject
Teaching Scheme per
week Examination Scheme
L T P TOTAL PAPER TW PO
E
TOTAL
1 Advanced Electrical
Measurements 4 - 4 100 25 -
125
2 Communication
Engineering 3 - 2 5 100 25 -
125
3 Electrical Machine
Design 3 1 2 6 100 50 50
200
4 Power System-III 4 - 2 6 100 25 - 125
5 Electrical Drives 4 - 2 6 100 25 50
175
6 Electrical Workshop 2 2 50 50
Total 18 1 18 29 500 200 100 800
INDEX
Sr. No. Subject Code Page No.
1. Advanced Electrical Measurements EE 306 02
2. Communication Engineering EE 307 11
3. Electrical Machine Design EE 308 22
4. Power System-III EE 309 33
5 Electrical Drives EE 310 43
TE Electrical (Semester-VI) Page 2
Course plan for Advanced Electrical Measurements
Course Code ELE 306 Course Title Advanced Electrical
Measurements
Prepared by Mrs.Kumbar Shobha Semester AY 2017-18, Sem II
Prerequisites Student should have good knowledge of electrical quantities.
Course Outcomes
At the end of the course the students should be able to:
C0306.1 Demonstrate3 different types of meters
C0306.2 Analyze4 passive transducers
C0306.3 Evaluate5active transducers
C0306.4 Discriminate4 electromechanical transducers
C0306.5 Criticize6 digital transducers
C0306.6 Distinguish2 virtual instrumentation
Mapping of COs with POs
POs
COs a b c d e f g h i j k
C0306.1 3
C0306.2 2
C0306.3 2
C0306.4 3
C0306.5 3
C0306.6 2
1 Mild correlation 2 Moderato correlation 3 Strong correlation
Course Contents
Unit
No.
Title
No. of
Hrs.
1
Measuring Instruments: Introduction, output power meters, Phase meter, Q meter,
LCR meter, Transistor tester, Stroboscope. Measurement of Power: Introduction,
Bolometer, Bolometer Element, Mount, Bolometer Bridge, Calorimetric.
Measurement of standing wave ratio measurement.
10
2 Passive Transducers: Inductive transducers- Inductive thickness transducers,
Inductive displacement transducers, Movable core-type Inductive transducers, 06
TE Electrical (Semester-VI) Page 3
eddy current type Inductive Transducers. Capacitive transducers- Capacitive
thickness transducers, capacitive displacement transducers, capacitive moisture
transducers.
3
Active Electrical Transducers: Introduction, thermoelectric transducers,
thermoelectric phenomenon, common thermocouple systems, piezoelectric
transducers, piezoelectric phenomenon piezoelectric materials, piezoelectric force
transducers, piezoelectric strain, piezoelectric torque transducers, piezoelectric
pressure transducers, piezoelectric acceleration transducers. Magnetostrictive
transducers- Magnetostrictive force transducers, Magnetostrictive acceleration
transducers, Magnetostrictive torsion transducers, Hall Effect transducers, and
application of Hall transducer.
08
4
Electromechanical transducers: Tachometers, variable reluctance tachometers
Electrodynamics vibration transducers, Electromagnetic pressure electromagnetic
flow meter. Photoelectric transducers- photoelectric phenomenon, photoelectric
transducers, Photo volatile transducers, Photo emissive transducers. Ionization
transducers- Ionization vacuum gauges, Ionization displacement transducers,
nuclear radiation transducers, radioactive vacuum gauge, radioactive thickness
gauge, radioactive level gauges.
08
5
Digital transducers: Digital displacement transducers, Digital tachometers,
transducer oscillators. Electrochemical transducers- basics of electrode potentials,
reference electrodes, indicator electrodes, measurement of PH, measurement of
bioelectric signals.
04
6
Virtual Instrumentation: Graphical System Design, Design flow with GSD, Virtual
instruments and Traditional Instruments, Hardware and software in VI, VI for test,
control &design, VI in the engineering process, GSD using LabView.Introduction
to data acquisition on PC, Sampling fundamentals, Input/Output techniques, Data
acquisition interface requirements –Issues involved in selection of Data acquisition
08
Reference Books:
Sr.
No.
Title of Book Author Publisher/Edition Topics
covered
1 Electrical Measurement & Measuring
Instruments
E. W. Golding
&Widdies
Tata McGraw Hill,
New Delhi, 3rd
edition
1,3
2 A Course in Electrical and Electronic
measurements & Instrumentation
A.K.Sawhney
.
Dhanpat Rai & Sons 2,4
3 Electronic Instruments &
Measurement Techniques
W.D. Cooper.
Prentice Hall
International
4,5,6
4 Virtual Instrumentation Using jovitha Jerome PHI Publications
TE Electrical (Semester-VI) Page 4
LabVIEW
5 Virtual Instrumentation Using
LabVIEW Sanjay Gupta, Tata McGraw Hill,
2ndEdition
Evaluation Scheme
Examination
Scheme
Theory Term Work OE Total
Max. Marks 100 25 -- 125
Contact Hours/
week
4 ----- -- 04
Scheme of Marks
Section Unit No. Title Marks
I
1 Measuring Instruments
16
2 Passive Transducers
18
3 Active electrical Transducers
16
II
4 Electromechanical Transducers
16
5 Digital Transducers
18
6 Virtual Instrumentation
16
Course unitization
CO Evaluation Remark
CO306.1 CAT 1 1 question on unit 1 and 2 with 15 marks each
CO306.2
CO306.3 CAT 2 1 question on unit 3 and 4 with 15 marks each
TE Electrical (Semester-VI) Page 5
CO306.4
CO306.5 CAT 3 1 question on unit 5 and 6 with 15 marks each
CO306.6
Unit wise Lesson Plan
Unit No
Unit Title
Planned Hrs.
1 Measuring instruments 10
Lesson schedule
Class
No.
Details to be covered
1 Introduction regarding subject.
2 output power meters
3 Phase meter, Q meter
4 LCR meter, Transistor tester
5 Stroboscope
6 Measurement of Power: Introduction,
7 Bolometer Element
8 Mount, Bolometer Bridge
9 Calorimetric
10 Measurement of standing wave ratio measurement
Review Questions
Q1 Explain phase meter, Q meter. C0306.1
Q2 Explain LCR meter, Transistor meter. C0306.1
Unit No
Unit Title Planned Hrs.
2 Passive Transducers 06
Lesson schedule
Class
No.
Details to be covered
TE Electrical (Semester-VI) Page 6
2 Inductive thickness transducers, Inductive displacement transducers
3 Movable core-type Inductive transducers
4 Eddy current type Inductive transducers.
5 Capacitive thickness transducers, capacitive displacement transducers
6 Capacitive transducers- capacitive moisture transducers.
Review Questions
Q1 Explain Movable core-type Inductive transducers C0306.2
Q2 Explain Capacitive thickness transducers, capacitive displacement transducers C0306.2
Unit No Unit Title Planned Hrs.
3 Active electrical transducers 08
Lesson schedule
Class
No.
Details to be covered
1 Introduction
2 Thermoelectric transducers, thermoelectric phenomenon.
3 common thermocouple systems, piezoelectric transducers
4 piezoelectric phenomenon piezoelectric materials
5 Piezoelectric force transducers, piezoelectric strain.
6 Piezoelectric torque transducers, piezoelectric pressure transducers, piezoelectric acceleration
transducers.
7 Magnetostrictive transducers Magnetostrictive force transducers
8 Magnetostrictive acceleration transducers, Magnetostrictive torsion transducers, Hall Effect
transducers, and application of Hall transducer.
Review Questions
Q1 Describe Thermoelectric transducers, thermoelectric phenomenon. C0306.3
Q2 Explain Magnetostrictive acceleration transducers, Magnetostrictive torsion
transducers
C0306.3
Section II
Unit No 4 Unit Title Electromechanical transducers Planned
Hrs.
08
Lesson schedule
Class
No.
Details to be covered
TE Electrical (Semester-VI) Page 7
1 Tachometers, variable reluctance tachometers Ionization transducers
2 Electro dynamic vibration transducers.
3 Electromagnetic pressure electromagnetic flowmeter.
4 Photoelectric transducers- photoelectric phenomenon,
5 Photo volatile transducers.
6 Photo emissive transducers. Ionization vacuum gauges,
7 Ionization displacement transducers, nuclear radiation transducers,
8 Radioactive vacuum gauge, radioactive thickness gauge, radioactive level gauges.
Review Questions
1 Explain Photo emissive transducers. Ionization vacuum gauges. C0306.4
2 Explain radioactive vacuum gauge, radioactive thickness gauge, radioactive level
gauges.
C0306.4
Unit No
Unit Title Planned Hrs.
5 Digital transducers 04
Lesson schedule
Class
No.
Details to be covered
1 Digital displacement transducers, Digital tachometers,
2 Electrochemical transducers- basics of electrode potentials, reference electrodes
3 Transducer oscillators. indicator
4 Electrodes measurement of PH, measurement of bioelectric signals.
Review Questions
1 Explain Digital displacement transducers, Digital tachometers, C0306.5
2 Explain Electrodes measurement of PH, measurement of bioelectric signals. C0306.5
Unit No 6 Unit Title Virtual instrumentation Planned Hrs. 08
Lesson schedule
Class
No.
Details to be covered
1 Graphical System Design,
TE Electrical (Semester-VI) Page 8
2 Design flow with GSD, Virtual instruments and Traditional Instruments,
3 VI for test, control &design,
4 VI in the engineering process,
5 GSD using LabView.Introduction to data acquisition on PC,
6 Sampling fundamentals, Input/Output techniques,
7 Hardware and software in VI
8 Data acquisition interface requirements –Issues involved in selection of Data acquisition cards
and buses
Review Questions
1 Explain Sampling fundamentals, Input/Output techniques C0306.6
2 Explain Graphical System Design. C0306.6
Model Question Paper
Course Title : Advanced Electrical Measurements
Duration-3 Hrs. Max. Marks: 100
Instructions:
1 Attempt any three questions from each section
2 Figures to the right indicate full marks.
3 Wherever required neat sketches shall be drawn.
1 a) Explain working of Q meter. 06
b) Explain construction and working of Transistor meter. 12
2 a) Explain Capacitive thickness transducers, 08
b) Describe Thermoelectric transducers, thermoelectric phenomenon 08
3 a) Explain thermoelectric phenomenon with suitable example. 12
b) Explain different radioactive level gauges. 06
TE Electrical (Semester-VI) Page 9
Assignments
Unit No.1-Assignment
1 Explain phase meter, Q meter.
2 Explain LCR meter
3 Explain working of Transistor meter.
4 Explain working of Q meter.
Unit No.2-Assignment
1 Explain Movable core-type Inductive transducers
2 Explain Capacitive thickness transducers,
3 Explain capacitive displacement transducers
Unit No.3-Assignment
1 Describe Thermoelectric transducers, thermoelectric phenomenon.
2 Explain Magnetostrictive acceleration transducers
3 Explain Magnetostrictive torsion transducers.
4 Explain thermoelectric phenomenon with suitable example.
Unit No.4-Assignment
1 Explain Photo emissive transducers..
2 Explain radioactive vacuum gauge, radioactive thickness gauge,
4 a) Explain concept of Ionization of vacuum gauges 06
b) Explain Electrodes measurement of PH,. 12
5 a) Explain Sampling fundamentals, Input/Output techniques 04
b) Explain Graphical System Design. 12
6 a) Explain Issues involved in selection of Data acquisition cards and buses 08
b) Explain Graphical System Design. 08
TE Electrical (Semester-VI) Page 10
3 Explain concept of Ionization of vacuum gauges
4 Explain different radioactive level gauges.
Unit No.5-Assignment
1 Explain Digital displacement transducers,
2 Explain Electrodes measurement of PH,.
3 Explain working of Digital tachometers
4 Explain the measurement of bioelectric signals
Unit No.6-Assignment
1 Explain Sampling fundamentals, Input/Output techniques
2 Explain Graphical System Design.
3 Explain Design flow with GSD
4 Explain Issues involved in selection of Data acquisition cards and buses
TE Electrical (Semester-VI) Page 11
Course plan for Communication Engineering.
Course Code ELE 307 Course Communication Engineering.
Prepared by Mr. S. V. Patil
Mrs.A.D.Katre Semester AY 2017-18, Sem II
Prerequisites The student should know about the basic concepts of signals and systems, analog
electronics.
Course Outcomes
At the end of the course the students should be able to:
C0307.1 Analyze4 the electrical communication and classification of signals and the signal
transmission using Fourier transform
C0307.2 Design4 the super heterodyne AM receiver, carrier acquisition, television.
C0307.3 Describe1 the concepts of instantaneous frequency, band-width of angle modulated
waves
C0307.4 Distinguish2 the concept of sampling with different modulation techniques
C0307.5 Discuss2 Digital Data Transmission
C0307.6 Solve3practicalcommunication systems in light by Shanon’s equation.
Mapping of COs with POs
POs
COs
a b c d e f g h i j k
C0307.1 1 1 2
C0307.2 2
C0307.3 2
C0307.4 2
C0307.5 2 1
C0307.6 1 3 1
1 Mild correlation 2 Moderato correlation 3 Strong correlation
TE Electrical (Semester-VI) Page 12
Course Contents
Unit
No.
Title No. of
Hours
1.
Introduction to Signals:
Overview of electrical communication, Size of a signal, classification of signals,
Signal operations, unit impulse function, signals and vectors, correlation orthogonal
signal sets, Fourier series. Fourier transform, signal transmission through a linear
system, ideal andPractical filters, signal distortion over a communication channel,
signal energy, signal power, numerical computation of Fourier transform.
09
2.
Amplitude Modulation:
Base-band and carrier communication, amplitude modulation -DSB, AM, AM,SSB,
VSB, carrier acquisition, super heterodyne AM receiver, television.
05
3.
Angle Modulation:
Concept of instantaneous frequency, band-width of angle modulated
waves,generationofFM waves, demodulation of FM, Interference in angle
modulated systems, FM receiver.
04
4.
Sampling and Pulse Code Modulation:
Sampling theorem, pulse-code modulation, and differential pulse code modulation
delta modulation.
04
5.
Digital Data Transmission:
Basic digital communication system, line coding, pulse shaping, scrambler,
regenerative repeater, detection-error probability, M-array communication, digital
carrier systems digital multiplexing.
06
6.
Information theory and coding:
Cellular telephone, spread spectrum systems, transmission media, public, switched
telephone network. Measure of information, source encoding error free
communication over a noisy channel, channel capacity of a discrete memory less
channel, practical, communication systems in light of Shanon’s equation, linear
block codes.
08
Reference Books:
Sr.
No.
Title of Book Author Publisher/Edition Topics
1) Modern Digital and Analog
Communication systems
B.P. Lathi Oxford press All
2) Communication Electronics L.F. Frangel, Tata McGraw Hill 4,5,6
TE Electrical (Semester-VI) Page 13
3) Contemporary Communication
systems using MATLAB
J.G. Proakis, Salahi Tata McGraw Hill 3,4,5,6,7
Evaluation scheme:
Examination
Scheme
Theory Term Work POE Total
Max. Marks 100 25 --- 125
Contact Hours/
week
3 ---- 02 05
Scheme of Marks:
Section Unit No. Title Marks
I
1 Introduction to Signals 16
2 Amplitude Modulation 8 or 16
3 Angle Modulation 8-16
II
4 Sampling and Pulse Code Modulation 24
5 Digital Data Transmission 16
6 Information theory and coding: 32 or 40
• Weightage may differ.
Course Utilization:
CO Evaluation Remark
CO307.1
CAT 1 1 question on unit 1 and 2 with 15 marks each CO307.2
CO307.3 CAT 2 1 question on unit 3 and 4 with 15 marks each
CO307.4
CO307.5 CAT 3 1 question on unit 5 and 6 with 15 marks each
TE Electrical (Semester-VI) Page 14
CO307.6
Unit wise Lesson Plan
Unit No Unit Title Planned Hrs.
1 Introduction to Signals 4
Lesson schedule:
Class
No.
Details to be covered
1 Overview of electrical communication
2 Size of a signal, classification of signals, signal operations
3 Unit impulse function, signals and vectors, correlation.
4 Orthogonal signal sets, Fourier series.
5 Fourier transform, signal transmission through a linear system
6 Ideal and practical filters
7 Signal distortion over a communication channel
8 Signal power
Review Questions:
Q1 Explain size of signal. C0307.1
Q2 Give the classification of signals. C0307.1
Q3 Explain power signal and hence prove the Parsevals power theorem. C0307.1
Q4 Explain the concept Pre-emphasis C0307.1
Q5 What is frequency modulation? C0307.1
Q6 Find the Fourier transform of signum function denoted by sgn(t). C0307.1
Q7 Classify the Ideal and practical filters C0307.1
Q8 Determine the Signal distortion over a communication channel C0307.1
Unit
No
Unit Title Planned Hrs.
TE Electrical (Semester-VI) Page 15
2 Amplitude Modulation 5
Lesson schedule
Class
No.
Details to be covered
1 Base-band and carrier communication
2 Amplitude modulation –DSB
3 Carrier acquisition, AM,SSB,VSB
4 Super heterodyne AM receiver
5 Television
Review Questions
Q1 Describe two different types of AM transmitters with the help of block diagram. C0307.2
Q2 Describe the expression for the AM signal for any general moduilating signal
which is not sinusoidal.
C0307.2
Q3 Explain the Base-band. C0307.2
Q4 Explain in detail the process of generation of DSB waves with a neat sketch. C0307.2
Unit
No
3 Unit Title: Angle Modulation Planned
Hrs.
4
Lesson schedule
Class
No.
Details to be covered
1 Concept of instantaneous frequency, band-width of angle modulated waves
2 Generation of FM waves, demodulation of FM
3 Interference in angle modulated systems
4 FM receiver
Review Questions
Q1 What if frequency modulation. Derive the mathematical expression for frequency
modulation.
C0307.3
Q2 Describe in detail Armstrong method of FM generation with the help of a block
diagram.
C0307.3
Q3 Explain instantaneous frequency with a suitable diagram. C0307.3
Q4 Explain FM receiver with a neat block diagram. C0307.3
TE Electrical (Semester-VI) Page 16
Q5 Explain the Interference in angle modulated systems with neat sketch. C0307.3
Q6 Discuss on FM demodulators. C0307.3
Unit
No
4 Unit Title: Sampling and Pulse Code Modulation Planned
Hrs.
4
Lesson schedule
Class
No.
Details to be covered
1 Sampling theorem
2 Pulse-code modulation
3 Differential pulse code modulation
4 Delta modulation.
Review Questions
Q1 Explain with block diagram differential pulse-code modulation. C0307.4
Q2 Explain Delta modulation with a block diagram. C0307.4
Q3 Explain and represent Sampling theorem. C0307.4
Q4 Comment on concept of sampling and hence explain the various types of sampling
used in communication.
C0307.4
Q5 Explain with block diagram differential pulse-code modulation. C0307.4
Unit
No
5 Unit Title: Digital Data Transmission Planned
Hrs.
6
Lesson schedule
Class
No.
Details to be covered
1 Basic digital communication system
2 Line coding, pulse shaping
3 Scrambler, regenerative repeater
4 Detection-error probability
TE Electrical (Semester-VI) Page 17
5 M-array communication
6 Digital carrier systems digital multiplexing.
Review Questions
Q1 Describe the concept of eye diagram in modern digital communication system. C0307.5
Q2 Differentiate clearly between analog communication and digital communication
systems with suitable example.
C0307.5
Q3 Explain regenerative repeater. C0307.5
Q4 Explain the use of error correcting codes in digital communication systems. C0307.5
Q5 Describe the digital communication system with a neat sketch. C0307.5
Q6 Write a short note on M-array communication C0307.5
Unit
No
6 Unit Title: Information theory and coding Planned
Hrs.
8
Lesson schedule
Class
No.
Details to be covered
1 Cellular telephone, spread spectrum systems
2 Transmission media, public
3 Switched telephone
4 Network.measure of information
5 Source encoding error free communication over a noisy channel
6 Channel capacity of a discrete memory less channel
7 Practical, communication systems in light of Shanon’s equation
8 Linear block codes.
Review Questions
Q1 Write a short note on block coding. C0307.6
Q2 Explain switched telephone system with a neat sketch. C0307.6
Q3 Write algorithm for linear block codes. C0307.6
Q4 State and derive the Shanon’s equation. C0307.6
TE Electrical (Semester-VI) Page 18
Q6 Explain the capacity of discrete memory channel. C0307.6
Q7 Describe the spread spectrum analysis. C0307.6
Q8 Write short note on Source encoding error free communication over a noisy
channel
C0307.6
Q9 Explain importance of the information coding. C0307.6
Model Question Paper
Course Title
Communication Engineering
Duration 3 Hours Marks:
100
Instructions:
1] Attempt any three questions from each section.
2] Figure to right indicates full marks.
3] Assume necessary data if required.
Section-I
1 a Define amplitude modulation and derive the expression for the modulation index.
Draw time domain signal and its frequency representation.
8
b A broadcast transmitter radiates 20KW when the modulation percentage is 75%.
How much of this is carrier power? Also calculate the power of each sideband.
8
2 a What is signal sideband transmission? Explain the advantages of S.S.B. over
D.S.B and A.M.
10
b What is signal sideband transmission? Explain the advantages of S.S.B. over
D.S.B and A.M.
8
3 a Calculate percentage power saving when the carrier is suppressed in AM
modulation to depth of i) 100% ii)50%. Repeat the same when the carrier and one
of the sidebands are suppressed.
8
b What is meant by phase modulation, clearly differentiate between frequency
modulation and phase modulation.
8
4 a Explain different types of noise sources in detail. 8
b What is Hilbert transform? Explain its applications. 8
TE Electrical (Semester-VI) Page 19
5 a What is the role of one bit quantizer in delta modulation? Explain DM transmitter
in detail.
8
b Apply the Shannon-Fano encoding procedure to following message ensemble:
[X]=[X1,X2,X3,X4,X5,X6,X7,X8,X9]
[P]=[0.49,0.14,0.14,0.07,0.04,0.02,0.02,0.01]
Find coding efficiency (η), L = average length of message.
10
6 a What is Granular noise? In which modulation it happens and why? How it can be
overcome?
8
b Explain frequency division multiplexing techniques. 8
7 a Explain the need of scrambler and descrambler circuit with suitable diagram. 8
b Explain in detail line coding techniques. 8
8 a What are different types of transmission media? Explain advantages of optical
fiber.
8
b Compare PCM, DM, DPCM techniques 8
List of Experiment:
Experiment
No Experiment Title
1 Study of AM Transmitter
2 Study of FM Transmitter
3 Study of Digital Transmitter
4 Study of AM modulation.
5 Study of FM modulation
6 Study of angle modulation
Assignments
Question
No.
Unit No.1-Assignment
1 Explain size of signal.
2 Give the classification of signals.
TE Electrical (Semester-VI) Page 20
3 What is frequency modulation?
4 Find the Fourier transform of signum function denoted by sgn(t).
5 Explain power signal and hence prove the Parsevals power theorem.
6 Explain the concept Pre-emphasis.
7 Classify the Ideal and practical filters
8 Determine the Signal distortion over a communication channel.
9 Explain size of signal.
10 Give the classification of signals.
Unit No.2-Assignment
1 Give the classification of signals
2 Explain the concept Pre-emphasis.
3 Classify the Ideal and practical filters
4 Explain the concept Pre-emphasis
Unit No.3-Assignment
1 Describe two different types of AM transmitters with the help of block diagram.
2 Describe the expression for the AM signal for any general moduilating signal which is not sinusoidal.
3 Explain the Interference in angle modulated systems with neat sketch.
4 Discuss on FM demodulators
5 Explain the Base-band.
6 Describe the expression for the AM signal for any general moduilatingsignal
7 Explain instantaneous frequency with a suitable diagram.
8 Explain FM receiver with a neat block diagram
Unit No.4-Assignment
1 Explain in detail the process of generation of DSB waves with a neat sketch.
2 Describe the expression for the AM signal for any general moduilating signal
3 What if frequency modulation. Derive the mathematical expression for frequency modulation.
4 Describe in detail Armstrong method of FM generation with the help of a block diagram.
5 Explain in detail the process of generation of DSB waves with a neat sketch.
Unit No.5-Assignment
1 Explain with block diagram differential pulse-code modulation.
2 Describe the concept of eye diagram in modern digital communication system.
3 Differentiate clearly between analog communication and digital communication
TE Electrical (Semester-VI) Page 21
systems with suitable example.
4 Write a short note on block coding.
5 Explain switched telephone system with a neat sketch.
6 Write algorithm for linear block codes.
7 Explain with block diagram differential pulse-code modulation.
8 Describe the concept of eye diagram in modern digital communication system.
Unit No.6-Assignment
1 Explain Delta modulation with a block diagram.
2 Describe the digital communication system with a neat sketch.
3 Write a short note on M-array communication
4 State and derive the Shanon’s equation.
5 Explain the capacity of discrete memory channel.
6 Describe the spread spectrum analysis.
TE Electrical (Semester-VI) Page 22
Course plan for Electrical Machine Design.
Course Code ELE 308 Course Electrical Machine Design.
Prepared by Mr.N R. Kulkarni
Ms.L.M.Shankareppagol
Semester AY 2017-18, Sem II
Prerequisites This course requires the student to know about the design concepts of Electrical
Machines.
Course Outcomes: At the end of the course the students should be able to:
C0308.1 Understand2design concepts of Electrical Machines.
C0308.2 Apply3 basics of Electrical materials required for machine design.
C0308.3 Explain2three phase Transformer.
C0308.4 Analyze4design of DC Machines.
C0308.5 Explain2three phase Induction motor.
C0308.6 Discuss2 design of three phase Synchronous machines.
C0308.7 Discuss2 design of starters& regulators.
Mapping of COs with POs
POs
COs
a b c d e f g h i j k
C0308.1 3
C0308.2 3
C0308.3 3
C0308.4 3
C0308.5 3
C0308.6 2
C0308.7 2
1 Mild correlation 2 Moderato correlation 3 Strong correlation
TE Electrical (Semester-VI) Page 23
Course Contents
Unit
No.
Electrical Machine Design No. of
Hours
1
General:
Materials– Different types of materials used in construction of electrical machines.
Conductors: copper and aluminum conductors, properties and applications, standard
conductor sizes, copper space factor. Insulating materials: classification, basic
properties of common insulating materials, latest developments, insulation thickness
and rated voltage, space factor, testing of insulating materials. Magnetic materials:
different types of magnetic materials, Characteristics and magnetization curves, iron
losses, basis of selection for particular application.
ii) Heating, Cooling and ventilation – Types of enclosures, Modes of heat
dissipation. Heating and cooling curves. Calculations of heating and cooling time
constants, calculation of short time and continuous rating of electrical machine.
Temp. Rise and rating of machines. Cooling medium used; oil, hydrogen and water.
08
2
Basic Design principles
General consideration in the design, limitations in the design, Output coefficient and
theirstandard values for various machines, effect of size & ventilation on specific
electric and magnetic loading. Different Indian Standard Specifications (ISS).
Magnetic circuits – Formulae for air and iron parts, calculations for magnetic
circuitsofelectric machines, estimation of no load current, determination of leakage
fluxes and reactance calculations, design of electromagnets.Mechanical Design –
design of shafts, choice and types of bearings, determination of mechanical strength
of rotors, design consideration of cooling fans and frames.
06
3
Design of Transformers
Classification of transformer (Core type, Shell type transformer), Comparison of
core and Shell type transformer, Single phase & 3 Phase transformer connections,
Core Cross Section, Cooling of transformer, transformer Insulation using Oil & other
materials Output equation of transformer, Relation between Core Area & Weight of
08
TE Electrical (Semester-VI) Page 24
iron & copper, Design for minimum cost, Design for minimum loss or maximum
efficiency, variation of Output &losses in transformer with linear Dimensions,
Design of Core (rectangular core, Square &stepped Cores), Variation of Core
Diameter, Selection of core areas & type of core, Choice of Flux Density, design of
winding, Windows Space Factor, Windows Dimensions, Overall Dimensions,
Simplified Steps for transformer Design. Resistance of Winding, Mechanical Forces,
No load currents, No load current of 1ph transformer, No load current of
3phtransformer, Design of Tank with Tubes, Core Design, Winding Design, Window
Area.
4
Design of DC Machines
Introduction & Applications, classification, Constructional Details, Stator,
Armature,Commutator, Brush Gear, Design output Equation, Interdependence of
specific &Electric loadings, Selection of no of poles, Core Length, Armature
diameter, Length of air gap, No of Armature coils, No of Armature Slots, Cross
Section of Armature Conductors, Insulation of armature winding, Slots Dimensions,
Poles Design (Area of poles, Height of Poles), length offender poles, Losses &
Efficiency (Rotational Losses, Losses Stray load losses, Efficiency).
Design of commutator and brush gear.
06
5
Design of AC Machines
i) Design of 3 Phase Induction Motor : Main Dimension, stator Winding,(Turns Per
Phase, Stator Conductors), Shapes Of Stator Slots, No of Stator Slots, Area of stator
Slots, Length Of Mean Turn, Stator Teeth, Stator Core, Rotor Design, length of air
gap, Relation For Calculations Of Length of air gap, No of Rotor Slots,(Rules For
Selecting Rotor Slots, Reduction of Harmonic torques), Design of rotor bars & Slots,
(Rotor Bar Currents, Area of Rotor Bar, shapes& Size Of Rotor Slots, Rotor Slot
Insulations), Design of End Rings.
ii) Design of Alternators: Output equation, determination of no. of poles, wdg and
insulation. Main dimensions, stator and rotor core, slots, conductors, armature wdg,
calculation of reactance& armature reaction, voltage regulation.
06
6
Design of starters and field regulators
Design of different types of motor starters, field regulators, design of heating coils
for various applications.
03
TE Electrical (Semester-VI) Page 25
Reference Books:
Sr. No. Title of Book Author Publisher/Edition Topics
1) Theory and Performance and
Design of A.C. Machines
M.G. Say ELBS London, 3rd
Edition.
5
2) A Course in Electrical Machine
Design,
A.K.Sawhney DhanpatRai& sons
New Delhi
ALL
3) Design of Electrical Machines K. G. Upadhyay New age publication. ALL
4) Principles of Electrical Machine
Design
R. K. Agarwal S. K. Katariya and
sons.
ALL
5) Design of Transformers, IndrajitDasgupta TATA Mc-Graw
Hill Publication
ALL
Evaluation scheme:
Examination
Scheme
Theory Term Work POE Total
Max. Marks 100 50 50 200
Contact Hours/
week
3 ----- 02 06
Scheme of Marks
Section Unit No. Title Marks
I
1 General Concepts 08
2 Basic Design principles 16
3 Design of Transformers 24
4 Design of DC Machines 24
II
5 Design of AC Machines 24
6 Design of starters and field regulators 16
• Weight age may differ.
Course Unitization
CO Evaluation Remark
TE Electrical (Semester-VI) Page 26
CO308.1
CAT 1 1 question on unit 1 and 2 with 15 marks each CO308.2
CO308.3 CAT 2 1 question on unit 3 and 4 with 15 marks each
CO308.4
CO308.5
CAT 3 1 question on unit 5 and 6 with 15 marks each CO308.6
Unit wise Lesson Plan
Section I
Unit
No
1 Unit Title General Concepts Planned
Hrs.
8
Lesson schedule
Class
No.
Details to be covered
1 Different types of materials used in construction of electrical machines.
Conductors: copper and aluminum conductors, properties and applications, standard conductor
sizes, copper space factor.
2 Insulating materials: classification, basic properties of common insulating materials, latest
developments,
3 Insulation thickness and rated voltage, space factor, testing of insulating materials.
4 Magnetic materials: different types of magnetic materials, Characteristics and magnetization
curves, iron losses, basis of selection for particular application.
5 ii) Heating, Cooling and ventilation – Types of enclosures, Modes of heat dissipation.
6 Heating and cooling curves. Calculations of heating and cooling time constants,
7 Calculation of short time and continuous rating of electrical machine. Temp. rise and rating of
machines. Cooling medium used; oil, hydrogen and water.
Review Questions
Q1 Explain Different types of materials used in construction of electrical machines. C0308.1
Q2 Explain Different types of Insulating materials. C0308.1
Q.3 Explain basic properties of common insulating materials. C0308.1
Q.4 Explain in detail Heating and cooling curves C0308.1
TE Electrical (Semester-VI) Page 27
Unit No
2 Unit Title Basic Design principles
Planned
Hrs.
06
Lesson schedule
Class
No.
Details to be covered
1 General consideration in the design, limitations in the design, Output coefficient and their
standard values for various machines, effect of size & ventilation on specific electric and
magnetic loading. Different Indian Standard Specifications (ISS).
2 i) Magnetic circuits – Formulae for air and iron parts, calculations for magnetic
circuitsofelectric machines, estimation of no load current, determination of leakage fluxes and
reactance calculations, design of electromagnets.
3 ii) Mechanical Design – design of shafts, choice and types of bearings, determination of
mechanical strength of rotors, design consideration of cooling fans and frames.
Review Questions
Q1 Explain different Indian Standard Specifications (ISS) used in the design
principles of machines.
C0308.2
Q2 Explain the limitations in the design of machines. C0308.2
Q3 Explain the detail electric and magnetic loading. C0308.2
Q4 Explain in detail the mechanical design consideration. C0308.2
Unit No 3 Unit Title Design of Transformers
Planned
Hrs.
08
Lesson schedule
Class
No.
Details to be covered
1 Classification of transformer (Core type, Shell type transformer), Comparison of core and
Shell type transformer, Single phase & 3 Phase transformer connections.
2 Core Cross Section, Cooling of transformer, transformer Insulation using Oil & other
materials Output equation of transformer, Relation between Core Area & Weight of iron &
copper
3 Design for minimum cost, Design for minimum loss or maximum efficiency, variation of
Output &losses in transformer with linear Dimensions, Design of Core (rectangular core,
Square &stepped Cores)
4 Variation of Core Diameter, Selection of core areas & type of core, Choice of Flux Density,
design of winding, Windows Space Factor, Windows Dimensions, Overall Dimensions, and
Simplified Steps for transformer Design.
5 Resistance of Winding, Mechanical Forces, No load currents, No load current of 1ph
transformer, No load current of 3phtransformer, Design of Tank with Tubes, Core Design,
TE Electrical (Semester-VI) Page 28
Winding Design, Window Area.
Review Questions
Q1 Explain the Classification of transformer. C0308.3
Q2 Explain the different cooling methods used in transformers. C0308.3
Q3 Explain in detail the design consideration used in designing of transformers C0308.3
Unit No 4 Unit Title Design of DC Machines
Planned
Hrs.
06
Lesson schedule
Class
No.
Details to be covered
1 Introduction & Applications, classification, Constructional Details, Stator,
Armature,Commutator.
2 Brush Gear, Design output Equation, Interdependence of specific &Electric loadings,
Selection of no of poles, Core Length.
3 Armature diameter, Length of air gap, No of Armature coils, No of Armature Slots, Cross
Section of Armature Conductors.
4 Insulation of armature winding, Slots Dimensions, Poles Design (Area of poles, Height of
Poles), length offender poles.
5 Losses & Efficiency (Rotational Losses, Losses Stray load losses, Efficiency).
Design of commutator and brush gear.
Review Questions
1 Describe the Constructional Details of DC machines. C0308.4
2 Explain in details the design procedure of Armature diameter. C0308.4
3 Explain in details the losses incorporated in DC machine. C0308.4
Unit No 5 Unit Title Design of AC Machines Planned
Hrs.
06
Lesson schedule
Class
No.
Details to be covered
1 Design of 3 Phase Induction Motor: Main Dimension.
2 Stator Winding,(Turns Per Phase, Stator Conductors), Shapes Of Stator Slots, No of Stator
Slots, Area of stator Slots, Length OfMean Turn, Stator Teeth, Stator Core.
3 Rotor Design, length of air gap, Relation For Calculations Of Length of air gap, No of Rotor
TE Electrical (Semester-VI) Page 29
Slots,(Rules For Selecting Rotor Slots.
4 Reduction ofHarmonic torques), Design of rotor bars & Slots, (Rotor Bar Currents, Area of
Rotor Bar, shapes& Size Of Rotor Slots, Rotor Slot Insulations), Design of End Rings.
5 ii) Design of Alternators: Output equation, determination of no. of poles, wdg and insulation.
Maindimensions stator and rotor core, slots, conductors, armature wdg, calculation of
reactance& armature reaction, voltage regulation.
Review Questions
1 Explain in detail the design consideration of 3 Phase Induction Motor C0308.5
2 Explain the harmonic leakage flux in squirrel cage induction rotor is not present? C0308.5
3 What is the condition for obtaining the maximum torque in case of 3 phase
induction motor?
C0308.5
4 What are the factors to be considered for estimating the length of air gap in
induction motor?
C0308.5
Unit No 6 Unit Title Design of starters and field regulators Planned Hrs. 03
Lesson schedule
Class
No.
Details to be covered
1 Design of different types of motor starters
2 Design of different types of field regulators
3 Design of heating coils for various applications.
Review Questions
1 Describe the design consideration of different types of Starters C0308.6
2 Explain the Design of heating coils for various applications. C0308.6
3 Describe the design consideration of different types of regulators C0308.6
Model Question Paper
Course Title Electrical Machine Design
Duration 3 Hours Marks:
100
Instructions:
1] Attempt any three questions from each section.
TE Electrical (Semester-VI) Page 30
2] Figure to right indicates full marks.
3] Assume necessary data if required.
1 a Explain Different types of materials used in construction of electrical
machines.
8
b Explain Different types of Insulating materials. 8
2 a Explain basic properties of common insulating materials. 8
b Explain different Indian Standard Specifications (ISS) used in the design
principles of machines.
Explain the limitations in the design of machines.
8
3 a Explain the different cooling methods used in transformers. 8
b Explain in detail the design consideration used in designing of transformers 8
4 a Explain in details the design procedure of Armature diameter. 8
b Explain in details the losses incorporated in DC machine. 8
5 a Explain the harmonic leakage flux in squirrel cage induction rotor is not
present?
8
b What is the condition for obtaining the maximum torque in case of 3 phase
induction motor?
10
6 a Describe the design consideration of different types of Starters 8
b Explain the Design of heating coils for various applications. 8
7 a Explain in detail the design consideration of 3 Phase Induction Motor 8
b Explain the harmonic leakage flux in squirrel cage induction rotor is not
present?
8
8 a Explain the Classification of transformer. 8
b Describe the design consideration of different types of regulators 8
List of Experiment:
Experiment
No
Experiment Title
1 Details and assembly of 3-phase transformer with design report.
2 Assembly of D.C. Machine.
3 Details and layout of AC winding with design report.
4 Assembly of 3- phases Alternator.
TE Electrical (Semester-VI) Page 31
5 Assembly of 3- phase induction motor.(only sheet)
6 Report based on Industrial visit to a manufacturing unit(Transformer or Induction
motor).
Assignments
Question
No.
Unit No.1 -Assignment
1 To study different types of Insulating materials: classification, basic properties of
common insulating materials, latest developments, insulation thickness and rated voltage,
space factor, testing of insulating materials.
Unit No.2 -Assignment
1 To study the Mechanical Design – design of shafts.
2 To study and analyze the design of Transformer.
Unit No.3 -Assignment
1 To study and analyze the design of DC Machine.
Unit No.4 -Assignment
1 To study and analyze the design of AC Machine.
2 To study and analyze the design of Starters.
Unit No.5-Assignment
1 Explain the harmonic leakage flux in squirrel cage induction rotor is not present?
2 What is the condition for obtaining the maximum torque in case of 3 phase induction motor?
3 Describe the design consideration of different types of Starters
4 Explain the Design of heating coils for various applications.
5 Explain the harmonic leakage flux in squirrel cage induction rotor is not present?
TE Electrical (Semester-VI) Page 32
Unit No.6-Assignment
1 Explain the harmonic leakage flux in squirrel cage induction rotor is not present?
2 Explain the Classification of transformer.
3 Describe the design consideration of different types of regulators
TE Electrical (Semester-VI) Page 33
Course plan for Power System-III
Course Code ELE 309 Course Power System-III
Prepared by Mr. Vikas S. Bhandare Semester AY 2017-18, Sem II
Prerequisites Basic concepts of power system, elements of power system, power flow and types
of faults.
Course Outcomes
At the end of the course the students should be able to:
C0309.1 Recall1 Power System Stability & Control
C0309.2 Explain2 Different Types of Power System Stability
C0309.3 Describe2 the Methods Of Improving Stability
C0309.4 Compare5 Different Methods Of Power System Control With Steady State
Analysis And Dynamic Response Of An Isolated Power System
C0309.5 Recognize4Optimal Power System Operation
C0309.6 Demonstrate3 Power System Security
Mapping of COs with POs
POs
COs a b c d e f g h i j k
C0309.1 2
C0309.2 3
C0309.3 2
C0309.4 2 2
C0309.5 1
C0309.6 2
1 Mild correlation 2 Moderato correlation 3 Strong correlation
Course Contents
Unit
No.
Title No. of
Hours
TE Electrical (Semester-VI) Page 34
1. Introduction to Power System Stability & Control: Power System Stability,
Classification Power system Stability, State Operation & System. Security :-
Review, System Dynamics Problems Current Status & Recent Trends, System
Model, Dynamics of Synchronous Machine [Swing equation] NUMERICALS
EXPECTED
06
2. Unit 2: Power system Stability: Factors affecting Transient Stability, Swing
Equation Solution [Point By Point Method, Equal Area Criteria], Transient
Stability Limit, Critical Clearing Angle and Critical Fault Clearing Time, Fault
Shunts and Impedances of Fault Shunts, Multi Machine Stability,
NUMERICALSEXPECTED.
10
3. Unit 3: Methods of Improving Stability: Transient Stability Enhancements:-
High Speed Fault clearing, Reduction of transmission system reactance ,
regulated shunt compensation , dynamic Braking , Reactor Switching,
Controlledsystem Separation & Load Shedding – High Speed Excitation &
Control, Discontinuous Excitation Control, Small Signal Stability
Enhancement-Power system Stabilizers, Supplementary Control of SVC
10
4. Unit 4: Power System Control: Automatic Generation Control, Load Frequency
Control (Single Area & Two Area Case),Automatic Voltage Control, Reactive
Power Control, NUMERICALS EXPECTED
10
5. Unit 5: Optimal Power System Operation: Load Forecasting, Optimal Unit
commitment, Economic load Dispatch [with/without Transmission line Losses
& Generator Limits], NUMERICALS EXPECTED
08
6 Unit 6: Power System Security: System State Classification, Security Analysis,
Contingency Analysis, Sensitivity Factors, Factors Affecting Power System
Security.
04
Reference Books:
Sr. No. Title of Book Author Publisher/Edition Topics
1. Modern Power System
Analysis.
I. J. Nagrath, D. P.
Kothari,
Tata McGraw
Hill Publishing Co.
Ltd., 2003
1-8
2 Electrical power System. Ashfaq Husain
CBS Publishers and
Distributors,
Fifth Edition 2007
1-5
3. Power System Analysis. Grainger John J and
W D Stevenson McGrawHill, 1994 1-2
TE Electrical (Semester-VI) Page 35
Evaluation scheme:
Examination
Scheme
Theory Term Work POE Total
Max. Marks 100 25 -- 125
Contact Hours/
week
4 02 06
Scheme of Marks
• Weightage may differ.
Course Unitization
CO Evaluation Remark
CO309.1 CAT 1 1 question on unit 1 and 2 with 15 marks each
CO309.2
CO309.3 CAT 2 1 question on unit 3 and 4 with 15 marks each
CO309.4
CO309.5 CAT 3 1 question on unit 5 and 6 with 15 marks each
CO309.6
Section Unit No. Title Marks
I
1 Introduction to Power System Stability & Control 16
2 Power system Stability 24
3 Methods of Improving Stability 24
II
4 Power System Control 32
5 Optimal Power System Operation 24
6 Power System Security 8
TE Electrical (Semester-VI) Page 36
Unit wise Lesson Plan
Section I
Unit No Unit Title
Planned Hrs.
1 Introduction to Power System Stability & Control 4
Lesson schedule
Class
No.
Details to be covered
1 Power System Stability, Classification Power system Stability
2 State Operation & System, Security :-Review
3 System Dynamics Problems Current Status & Recent Trends
4 System Model
5 Dynamics of Synchronous Machine [Swing equation]
6 NUMERICALS
Review Questions
Q1 Explain different types of stability in detail. C0309.1
Q2 State and prove the swing equation from the first principal of rotor dynamics. C0309.1
Unit No
Unit Title Planned Hrs.
2 Power system Stability 10
Unit Outcomes
Lesson schedule
Class
No.
Details to be covered
1 Factors affecting Transient Stability
2 Swing Equation Solution Point By Point Method
3 EqualArea Criteria
4 Transient Stability Limit
5 Detail about Critical Clearing Angle
6 Critical Fault ClearingTime
7 Fault Shunts and Impedances of Fault Shunts
8 Multi Machine Stability
9 NUMERICALS
Review Questions
Q1 What is equal area criterion for stability assessment? C0309.2
Q2 With suitable example explain voltage collapse. C0309.2
Q3 Explain factor affecting transient stability. C0309.2
Q4 Explain swing equation point by point mehod. C0309.2
Unit No
Unit Title Planned Hrs.
TE Electrical (Semester-VI) Page 37
3 Methods of Improving Stability 10
Unit Outcomes
Lesson schedule
Class
No.
Explain different types Power System stability
1 Transient Stability Enhancements
2 High Speed Fault clearing, Reduction of transmission system
Reactance
3 regulated shunt compensation
4 dynamic Braking
5 Reactor Switching,
6 High Speed Excitation & Control, Discontinuous
7 Controlled system Separation & Load Shedding Stabilizers,
8 Excitation Control,
9 Small Signal Stability Enhancement-Power system
10 Supplementary Control of SVC
Review Questions
Q1 Explain High Speed Fault clearing, Reduction of transmission system
Reactance
C0309.3
Q2 Explain the method of improving voltage stability of a system C0309.3
Q3 Explain Small Signal Stability Enhancement-Power system C0309.3
Unit
No
4 Unit Title Power System Control Planned Hrs. 10
Lesson schedule
Class
No.
Details to be covered
1 Load frequency control (Single area).
2 Load frequency control (two areas).
3 Modeling of Generator.
4 Modeling of Governor, prime mover, Load.
5 Load frequency control and economic dispatch.
6 Automatic generation control.
7 Steady state analysis response of an isolated power system.
8 Dynamic response of an isolated power system.
9 Automatic voltage control
10 Reactive power control.
Review Questions
Q1 1. Explain the objectives and functions of Automatic generation Control (AGC)
in a power system.
C0309.4
TE Electrical (Semester-VI) Page 38
2. Describe the function of AVR with a neat block diagram.
3. Explain how mathematical model of speed governing system is developed
for Automatic generation control.
4. Distinguish AVR and ALFC control loops of a generator.
5. Explain what is meant by control area. Obtain the transfer function model
and explain ALFC of a single area of an isolated power system.
6. Explain reactive power control.
Unit
No
5 Unit Title Optimal Power System Operation Planned
Hrs.
8
Lesson schedule
Class
No.
Details to be covered
1 System constraints.
2 Generator operating cost.
3 Input-output and incremental fuel characteristics of a generating unit.
4 Optimal operation of generators on a bus bar, algorithm .
5 Flow chart for optimal power flow study.
6 Optimal unit commitment.
7 Spinning reserve, thermal and hydro constraints.
8 Numerical expected.
Q1 1. With the help of a flow chart, explain the dynamic programming method in
unit commitment.
2. Explain the problems and constraints found in unit commitment. How they
are solved?
3. Explain the need of an optimal unit commitment problem.
4. Explain thermal and hydro constraints.
5. Explain Input -output and incremental fuel characteristics.
6. Discuss the Flow chart for optimal power flow study.
C0309.5
Unit
No
6 Unit Title Power system Security Planned Hrs. 4
Lesson schedule
Class
No.
Details to be covered
1 Brief Introduction to- System state classification.
2 Security analysis.
3 Contingency analysis.
4 Sensitivity factors.
Q 1. Define system security and explain major functions involved in the system
security.
2. Explain briefly the factors affecting the system security.
3. Explain briefly the problem of detection of network problems.
C0309.6
TE Electrical (Semester-VI) Page 39
4. Explain contingency analysis with the help of flow chart.
5. Explain the sensitivity method of contingency evaluation.
6. Explain calculation of network sensitivity factor and contingency ranking.
7. Write short notes on:
i. Spinning reserve
ii. Importance of unit commitment
iii. Detection of network problems
iv. Power system contingency analysis
8. Define the following
i. Optical dispatch
ii. Post contingency
iii. Secure dispatch
iv. Secure post-contingency.
9. With the block diagram, explain AC power flow security analysis.
Model Question Paper
Course Title : Power System -III
Duration 3 Hrs. Marks
100
Instructions:
a. Question 1 & Question 4 is Compulsory
b. Solve any three question from each section
1 a Derive the swing equation of a synchronous machine with usual
notations. Mention the use of swing equation
8
b Asynchronous generator of reactance 1.20 per unit is connected to an
infinite bus bar |V|=1.0 p.u. through transformer and a transmission line
having total reactance 0.60 p.u the generator no load is 1.20 p.u and its
inertia constant is H=4MW-secMVA. The resistance and machine
damping may assumed negligible. The system frequency is 50 Hz .
calculate the natural frequency of oscillations if the generator is loaded
to 50 %
8
2 a With suitable example explain voltage collapse. 8
b Describe the Dynamic characteristics of Synchronous machine. 8
3 a Explain with neat diagram load frequency control of an isolated system 8
b Explain the Equal area criterion. 8
4 a A 250MW, 50Hz turbine generator set has a speed regulation of 5%
based on its own rating. The generator frequency decreases from 50Hz
to steady state value of 49.7 Hz. Determine the increase in turbine
power output.
10
TE Electrical (Semester-VI) Page 40
b Discuss the Factors affecting transient stability. 8
Section-II
5 a Explain the concept of equal area criterion. How can it be used to study
transient stability?
8
b Write a short note on unit commitment 8
6 a A 50Hz generator of reactance 1 pu is connected to an infinite bus
through a line reactance 0.5 pu E=1.1 pu and V= 1 pu. The inertia
constant is 5MW-sec/MVA. The generator is loaded to 50% of the
maximum power limit. Find the frequency of natural oscillations.
8
b With suitable example explain ‘voltage collapse’ 8
7 a Distinguish between steady state, transient and dynamic stability 8
b Derive co-ordination equation for economic load scheduling in a large
power system. Give the sequence of steps to determine economic
generation of various plants for a given load demand.
8
8 a Discuss system state classification and security analysis. 10
b Discuss the procedure for solving the swing equation using point by
point method.
8
List of Experiment
Expt. No Experiment Title
1 Single phase half controlled converter using R and RL load
using MATLAB / SIMULINK
2 Single phase fully controlled converter using R and RL load
using MATLAB / SIMULINK
3 Three phase fully controlled converter using R and RL load
using MATLAB / SIMULINK
4 Single phase AC voltage regulator using MATLAB /
SIMULINK
5 Formation of Y bus matrix by inspection / analytical method
using MATLAB Software
6 Formation of Z bus using building algorithm using MATLAB
Software
7 Fast decoupled load flow analysis using MATLAB Software
8 Fault analysis using MATLAB Software
Assignments
Question
No.
Unit No.1 Assignment
TE Electrical (Semester-VI) Page 41
1
Derive the swing equation of a synchronous machine with usual notations. Mention the
use of swing equation
2
Asynchronous generator of reactance 1.20 per unit is connected to an infinite bus bar
|V|=1.0 p.u. through transformer and a transmission line having total reactance 0.60 p.u
the generator no load is 1.20 p.u and its inertia constant is H=4MW-secMVA. The
resistance and machine damping may assumed negligible. The system frequency is 50 Hz
. calculate the natural frequency of oscillations if the generator is loaded to 50 %
3
A 250MW, 50Hz turbine generator set has a speed regulation of 5% based on its own
rating. The generator frequency decreases from 50Hz to steady state value of 49.7 Hz.
Determine the increase in turbine power output.
4 Explain the concept of equal area criterion. How can it be used to study transient
stability?
Unit No.2 Assignment
1) Power System Stability, Classification Power system Stability,
2) Factors affecting Transient Stability
3) Swing Equation Solution Point By Point Method
4) Explain the objectives and functions of Automatic generation Control (AGC) in a power
system.
Unit No.3 Assignment
1) Explain Reactive Power Control.
2) Explain how mathematical model of speed governing system is developed for Automatic
generation control.
Explain reactive power control.
3) Distinguish AVR and ALFC control loops of a generator.
4) Explain what is meant by control area. Obtain the transfer function model and explain
ALFC of a single area of an isolated power system.
Unit No.4 Assignment
1) Explain Four Problem Associated with Power Quality issue in detail and its Remedial
Measure?
What is mean by Harmonic? explain Harmonic in terms of
i) order ii) Phase Sequence iii) Magnitude iv) Classification
Unit No.5 Assignment
TE Electrical (Semester-VI) Page 42
1) Explain Why even Harmonic is absent in 1 phase 3 phase power system?
2) How severe the Harmonics is reduced by using 12 pulse converters when transformer is
Dy11?
3) Explain how the CFL lamp affects Power Quality issue?
4) Perform Matlab simulation Passive Shunt compensator to improve stability
Unit No.6 Assignment
1) Perform Matlab simulation Passive Series compensator to improve stability
2) Perform Matlab simulation STATCOM / SSSC compensator to improve stability
3) Perform Matlab simulation UPQC compensator to improve stability
TE Electrical (Semester-VI) Page 43
Course plan for Electrical Drives.
Course Code ELE 310 Course Title Electrical Drives.
Prepared by Mr. PravinMagdum
Mr I. D. Pharne
Semester AY 2017-18, Sem II
Prerequisites The student should know about the basic concepts of power electronics and
electrical machines.
Course Outcomes
At the end of the course the students should be able to:
C0310.1 Describe1 the construction/working principle of different types of drives and types
of loads and their characteristics.
C0310.2 Understand2control of dc motor by Single & Three phase Converter.
C0310.3 Understand2the control of dc motor by Chopper
C0310.4 Explain1 Induction Motor Drives by Stator Side Control & Stator Frequency
Control Methods.
C0310.5 Sumarise2 the various types of induction motor drives Rotor side control
C0310.6 Classify3 the Synchronous Motor Drives and Control Mechanisms.
Mapping of COs with POs
POs
COs
a b c d e f g h I j K
C0310.1 3
C0310.2 2
C0310.3 2 3
C0310.4 2
C0310.5 3
C0310.6 3
1 Mild correlation 2 Moderato correlation 3 Strong correlation
Course Contents
Unit
No.
ELECTRICAL DRIVES No. of
Hours
1. INTRODUCTION: Concept of Electrical drive, Classification of Electrical
drives, Parts of Electrical drive, Types of loads and their characteristics, Motor
load interaction, Dynamic conditions in Electrical drives, Stability
considerations in Electrical drives
4
TE Electrical (Semester-VI) Page 44
2. CONTROL OF DC MOTOR BY SINGLE & THREE-PHASE
CONVERTERS: Introduction, review of Classification of dc motors and their
speed control, Electric braking of dc motors, Block Diagram of Electrical
Drive, Single phase Controlled Converter for Separately Excited dc motor
Drives, DC series Motor Drives, Introduction to 4 quadrant operation of dc
motor, Single phase Dual Converter for Four Quadrant Operation. Three phase
semi converter Fed with Separately Excited dc Motor, Three Phase Full
Converter Fed with Separately Excited dc motor, Three phase semi converter
Fed dc Series Motor, Three Phase Full- converter Fed dc Series Motor
8
3. CONTROL OF DC MOTOR BY CHOPPER: Introduction, Principle of
chopper Operation, Control Techniques Used in dc choppers, Chopper
Configuration, Classification of Chopper Circuits (single quadrant and four
quadrant operation of chopper), Performance of chopper Fed Separately Excited
dc Motors, Introduction to Closed Loop Control of Drives
6
4. INDUCTION MOTOR DRIVES-STATOR SIDE CONTROL: stator voltage
control: Introduction, review of types of 3 phase Induction motors, Torque-
speed characteristic of 3 phase Induction motor, Stator Voltage Control using
different 3 phase AC voltage controllers, Introduction to closed loop control
using stator voltage control, introduction to 4 quadrant AC voltage controllers
Stator frequency control: Introduction, Variable Frequency Characteristics,
Block Diagram of Variable Frequency Speed Control, V/f control, Voltage
Source Inverter (VSI) fed induction motor drive, Braking and multi quadrant
operation of VSI fed induction motor drive, Variable Frequency Control From a
current Source inverter (CSI), comparison of VSI and CSI drives, Introduction
of Closed loop speed Control for VSI fed Induction Motor Drives, Basic
operation of Pulse Width Modulated Inverter Fed Induction motor Drive
12
5. INDUCTION MOTOR DRIVES: Rotor side control: Introduction,
Conventional Rotor Resistance Control, Rotor Resistance Control using power
converters, Slip Power Recovery Schemes (Static Kramer drive, Static
Scherbius drive), Introduction to Vector control of I
6
6. SYNCHRONOUS MOTOR DRIVES: Introduction, review of synchronous
motor types & operation, Speed Control of Synchronous Machines in self
control mode and true synchronous mode, Load- commutated Inverter Fed
Synchronous Motor Drive, Closed loop Speed control of Synchronous Motor
using Load commutated Inverter, Operation of Voltage Source Inverter Fed
Synchronous Motor Drive.
6
TE Electrical (Semester-VI) Page 45
Reference Books
Sr. No. Title of Book Author Publisher/Edition Topics
1) Power Semiconductor Drives S. Sivanagaraju, M. B.
Reddy, A. M. Prasad, PHI, Delhi
All
2) Fundamentals of Electrical
Drives
G. K. Dubey, CRC
Press, II edition
Narosa
Publication
4,5,6,7
3) Electric Drives P. K. Sen 3,4,5,6,7
4) Electric Drives: Concepts &
Applications
VedamSubrahmanyam
Tata Mc-Graw-
Hill
5,6,7
Evaluation scheme:
Examination
Scheme
Theory Term Work POE Total
Max. Marks 100 25 50 175
Contact Hours/
week
4 ----- 02 06
Scheme of Marks
Section Unit No. Title Marks
I
1 Introduction 16
2 Control of dc motor by single & three-phase converters 18
3 Control of dc motor by chopper 16
II
4 Induction motor drives-stator side control 16
5 Induction motor drives 18
6 Synchronous motor drives 16
Marks scheme may get change
TE Electrical (Semester-VI) Page 46
Course Unitization
CO Evaluation Remark
CO310.1 CAT 1 1 question on unit 1 and 2 with 15 marks each
CO310.2
CO310.3 CAT 2 1 question on unit 3 and 4 with 15 marks each
CO310.4
CO310.5 CAT 3 1 question on unit 5 and 6 with 15 marks each
CO310.6
Unit wise Lesson Plan
Unit No 1 Unit Title Introduction Planned
Hrs.
4
Lesson schedule
Class
No.
Details to be covered
1 Concept of Electrical drive,Classification of Electrical drives
2 Parts of Electrical drive, Types of loads and their characteristics
3 Motor load interaction, Dynamic conditions in Electrical drives
4 Stability considerations in Electrical drives
Review Questions
Q1 State and explain different sources used for D.C. and A.C. drives. C0310.1
Q2 What is meant by drives, explain basic block diagram of electrical drives. C0310.1
Unit No
2 Unit Title Control of dc motor by single & three-phase
converters
Plann
ed
Hrs.
8
Lesson schedule
Class
No.
Details to be covered
1 Introduction, review of Classification of dc motors and their speed control
TE Electrical (Semester-VI) Page 47
2 Electric braking of dc motors, Block Diagram of Electrical Drive
3 Single phase Controlled Converter for Separately Excited dc motor Drives
4 DC series Motor Drives, Introduction to 4 quadrant operation of dc motor
5 Single phase Dual Converter for Four Quadrant Operation
6 Three phase semi converter Fed with Separately Excited dc Motor, Three Phase Full
Converter Fed with Separately Excited dc motor,
7 Three phase semi converter Fed dc Series Motor
8 Three Phase Full- converter Fed dc Series Motor
Review Questions
Q1 Explain multi-quadrant operation for drives. C0310.2
Q2 Explain Electric braking of dc motors C0310.2
Q3 Explain Three Phase Full Converter Fed with Separately Excited dc motor, C0310.2
Unit No 3 Unit Title CONTROL OF DC MOTOR BY CHOPPER Planned
Hrs.
6
Lesson schedule
Class
No.
Details to be covered
1 Principle of chopper Operation
2 Chopper Configuration
3 Classification of Chopper Circuits (single quadrant and four quadrant operation of chopper)
4 Performance of chopper Fed Separately Excited dc Motors
5 Control Techniques Used in dc choppers
6 Introduction to Closed Loop Control of Drives
Review Questions
Q1 Explain Closed Loop Control of Drives C0310.3
Q2 Explain Performance of chopper Fed Separately Excited dc Motors C0310.3
Unit No 4 Unit Title NDUCTION MOTOR DRIVES-STATOR
SIDE CONTROL
Planned
Hrs.
12
Lesson schedule
Class
No.
Details to be covered
TE Electrical (Semester-VI) Page 48
1 Introduction, review of types of 3 phase Induction motors
2 Torque-speed characteristic of 3 phase Induction motor
3 Stator Voltage Control using different 3 phase AC voltage controllers
4 Introduction to closed loop control using stator voltage control
5 introduction to 4 quadrant AC voltage controllers
6 Introduction, Variable Frequency Characteristics, Block Diagram of Variable Frequency
Speed Control
7 V/f control, Voltage Source Inverter (VSI) fed induction motor drive
8 Braking and multi quadrant operation of VSI fed induction motor drive
9 Variable Frequency Control From a current Source inverter (CSI),
10 comparison of VSI and CSI drives
11 Introduction of Closed loop speed Control for VSI fed Induction Motor Drives
12 Basic operation of Pulse Width Modulated Inverter Fed Induction motor Drive
Review Questions
1 A 220 V, 200 A, 800 rpm dc separately excited motor has an armature
resistance of 0.06 ohms The motor armature is fed from a variable voltage
source with an internal resistance of 0.04 ohms. Calculate the minimal voltage
of the variable voltage source when the motor is operating in regenerative
braking at 80% of rated motor torque and 600 rpm.
C0310.4
2 State different methods of braking for dc separately excited mo tor and explain
any one of them in detail
C0310.4
3 Explain speed contro1 of separately excited dc motor using combined armature
and field control. Explain with diagrams the limitations on maximum allowable
torque and power for complete speed range.
C0310.4
4 A 200 V, 875 rpm, 150 A separately excited dc motor has an armature
resistance of 0.06 ohms. It is fed from a single phase fully controlled rectifier
from an ac source of 220 V, 50 Hz. Assuming continuous conduction calculate :
i) firing angle for rated motor torque and 750 rpm, firing angle for rated motor
torque and (-500) rpm
C0310.4
Unit No 5 Unit Title INDUCTION MOTOR DRIVES Planned
Hrs.
6
Lesson schedule
Class
No.
Details to be covered
1 Introduction
2 Conventional Rotor Resistance Control
TE Electrical (Semester-VI) Page 49
3 Rotor Resistance Control using power converters
4 Slip Power Recovery Schemes(Static Kramer drive)
5 Slip Power Recovery Schemes(Static Scherbius drive)
6 Introduction to Vector control of I
Review Questions
1 Explain chopper control of separately excited dc motor during dynamic braking
operation. Derive the equations of effective value of resistance as a function of
duty cycle.
C0310.5
2 Explain with neat diagram slip power recovery scheme for speed control of slip
ring induction motor. Draw speed torque characteristics with varying firing
angle of the inverter.
C0310.5
Unit No 6 Unit Title SYNCHRONOUS MOTOR
DRIVES
Planned
Hrs.
6
Lesson schedule
Class
No.
Details to be covered
1 Introduction
2 review of synchronous motor types & operation
3 Speed Control of Synchronous Machines in self control mode and true synchronous mode
4 Load- commutated Inverter Fed Synchronous Motor Drive
5 Closed loop Speed control of Synchronous Motor using Load commutated Inverter
6 Operation of Voltage Source Inverter Fed Synchronous Motor Drive
Review Questions
1 Explain with neat diagram slip power recovery scheme for speed control of
slip ring induction motor. Draw speed torque characteristics with varying
firing angle of the inverter.
C0310.6
2 Explain slip power recovery using Cascade converter, C0310.6
Model Question Paper
Course Title : ELECTRICAL DRIVES
Duration 3 Hours Mark:
100
Instructions:
1] Attempt any three questions from each section.
TE Electrical (Semester-VI) Page 50
2] Figure to right indicates full marks.
Section-I
1 a What are the methods to obtain variable dc voltage for speed control of'dc
motors? Explain?
8
b State and explain different sources used for d.c. and a.c. drives. 8
2 a Explain various components of load torque. Hence draw steady state load
torque speed curves for fan, hoist Traction and constant power and
explain the same.
10
b A motor drives two loads. One has rotational motion, It is coupled to the
motor through a reduction gear with a = 0.1 (a = no. of teeth on motor side
gear/ no. of teeth on load side gear) and efficiency of 90%. The load has a
moment of inertia of I0kg-m2 and a torque of 10 N-m. Other load has
translational motion and consists of 1000 kg weight to be lifted up at a
uniform speed of 1.5 m/sec. Motor has an inertia of 0.2 kg-m2 and runs at
constant speed of M 2 0 rpm. Determine equivalent inertia referred to the
shaft
8
3 a Explain the terms, Constant torque drive and Constant power drive.
Explain with neat diagram, closed loop torque control
8
b When load torque fluctuates widely, explain how' continuous duty motor
of smaller rating can be used for short time loads having higher peak
torque than the motor capacity
8
4 a State different methods of braking for dc separately excited mo tor and
explain any one of them in detail
8
b A 220 V, 200 A, 800 rpm dc separately excited motor has an armature
resistance of 0.06 ohms The motor armature is fed from a variable voltage
source with an internal resistance of 0.04 ohms. Calculate the minimal
voltage of the variable voltage source when the motor is operating in
regenerative braking at 80% of rated motor torque and 600 rpm.
8
Section-II
5 a Explain speed contro1 of separately excited dc motor using combined
armature and field control. Explain with diagrams the limitations on
maximum allowable torque and power for complete speed range.
8
b A 200 V, 875 rpm, 150 A separately excited dc motor has an armature
resistance of 0.06 ohms. It is fed from a single phase fully controlled
rectifier from an ac source of220 V, 50 Hz. Assuming continuous
conduction calculate : i) firing angle for rated motor torque and 750 rpm,
firing angle for rated motor torque and (-500) rpm
10
6 a Explain chopper control of separately excited dc motor during dynamic
braking operation. Derive the equations of effective value of resistance as
a function of duty cycle.
8
b A230 V, 960 rpm and 200 A separately excited dc motor has armature
resistance of 0.02 ohms. The motor is fed from a chopper which provides
regenerative operation. The source has a voltage of 230 V. Assume
8
TE Electrical (Semester-VI) Page 51
continuous conduction. If maximum permissible duty ratio is limited to
0.95 and the maximum permissible motor armature current is twice the
rated, draw the circuit diagram showing reference direction for voltage
and current. Calculate maximum permissible motor speed obtainable if
field voltage is constant.
7 a Explain with neat diagram slip power recovery scheme for speed control
of slip ring induction motor. Draw speed torque characteristics with
varying firing angle a of the inverter.
8
b Explain brushless dc motor with the help of neat diagrams and
waveforms.
8
8 a Write a note on vector or field oriented control explaining its dc drive
analogy.
8
b Explain the effect of non-sinusoidal voltage supply with half wave
symmetry on induction motor.
8
Lab Plan
Expt. No Experiment Title
1 Study of Thyristor controlled D.C Drive
2 Study of three phase fully controlled converter and speed control of dc shunt motor and
resistive load
3 Study of Chopper Fed DC Motor
4 Study of Regenerative/ Dynamic breaking operatation for DC motor
5 Study of PWM inverter fed three phase induction motor control
6 Study of VSI fed 3-phase Induction Motor (using V/F control PWM Inverter)
7 Study of permanent magnet synchronous motor drive fed by PWM inverter
8 Study of VSI / CSI fed Induction motor Drive analysis
Assignments
Question
No. Unit No.1 -Assignment
1 What are the advantages of electrical drives?
2 State various parts of electrical drives. What are the functions of power modulators?
3 Explain various components of load torque. Hence draw steady state load torque
speed curves for fan, hoist Traction and constant power and explain the same.
TE Electrical (Semester-VI) Page 52
4
A drive has the following parameters:
T = 250 – 0.3N, N-m, where N is the speed in rpm,
Load torque Tl = 150 N-m,
Unit No.2 -Assignment
1 State various parts of electrical drives. What are the functions of power modulators?
2 State and explain the functions of various converters.
3
A drive has the following parameters:
T = 150 – 0.1N, N-m, where N is the speed in rpm,
Load torque Tl = 100 N-m,
Initially the drive is operating in steady state. The characteristics of load torque
arechangedto-100 N-m. Calculate initial and final equilibrium speeds.
4
A motor drives two loads. One has rotational motion, It is coupled to the motor
through a reduction gear with a = 0.1 (a = no. of teeth on motor side gear/ no. of
teeth on load side gear) and efficiency of 90%. The load has a moment of inertia of
I0kg-m2 and a torque of 10 N-m. Other load has translational motion and consists of
1000 kg weight to be lifted up at a uniform speed of 1.5 m/sec. Motor has an inertia
of 0.2 kg-m2 and runs at constant speed of M 2 0 rpm. Determine equivalent inertia
referred to the shaft
Unit No.3 -Assignment
1 Write a brief note on sources employed in electrical drives.
2 State and explain the functions of various converters.
3 Explain various components of load torque. Hence draw steady state load torque
speed curves for fan, hoist Traction and constant power and explain the same.
4 A drive has the following parameters:
T = 50 – 0.1N, N-m, where N is the speed in rpm,
Load torque Tl = 40 N-m,Initially the drive is operating in steady state. The
characteristics of load torque arechangedto-40 N-m. Calculate initial and final
equilibrium speeds
5 A motor drives two loads. One has rotational motion, It is coupled to the motor
through a reduction gear with a = 0.1 (a = no. of teeth on motor side gear/ no. of
teeth on load side gear) and efficiency of 90%. The load has a moment of inertia of
I0kg-m2 and a torque of 10 N-m. Other load has translational motion and consists
of 1000 kg weight to be lifted up at a uniform speed of 1.5 m/sec. Motor has an
inertia of 0.2 kg-m2 and runs at constant speed of M 2 0 rpm. Determine equivalent
inertia referred to the shaft.
TE Electrical (Semester-VI) Page 53
Unit No.4-Assignment
1 State different methods of braking for dc separately excited mo tor and explain any
one of them in detail
2 Explain various modes of the operation of drives.
3 Explain the terms, Constant torque drive and Constant power drive. Explain with
neat diagram, closed loop torque control.
4 A 220 V, 200 A, 800 rpm dc separately excited motor has an armature resistance of
0.06 ohms The motor armature is fed from a variable voltage source with an
internal resistance of 0.04 ohms. Calculate the minimal voltage of the variable
voltage source when the motor is operating in regenerative braking at 80% of rated
motor torque and 600 rpm.
5 Explain speed contro1 of separately excited dc motor using combined armature and
field control. Explain with diagrams the limitations on maximum allowable torque
and power for complete speed range.
6 State different methods of braking for dc separately excited mo tor and explain any
one of them in detail
Unit No.5-Assignment
1 Explain the terms, Constant torque drive and Constant power drive. Explain with
neat diagram, closed loop torque control
2 State different methods of braking for dc separately excited mo tor and explain any
one of them in detail.
3 A 220 V, 200 A, 800 rpm dc separately excited motor has an armature resistance of
0.06 ohms The motor armature is fed from a variable voltage source with an
internal resistance of 0.04 ohms. Calculate the minimal voltage of the variable
voltage source when the motor is operating in regenerative braking at 80% of rated
motor torque and 600 rpm.
4 Explain speed contro1 of separately excited dc motor using combined armature and
field control. Explain with diagrams the limitations on maximum allowable torque
and power for complete speed range.
5 A 200 V, 875 rpm, 150 A separately excited dc motor has an armature resistance of
0.06 ohms. It is fed from a single phase fully controlled rectifier from an ac source
of 220 V, 50 Hz. Assuming continuous conduction calculate : i) firing angle for
rated motor torque and 750 rpm, firing angle for rated motor torque and (-500) rpm
6 Explain the terms, Constant torque drive and Constant power drive. Explain with
neat diagram, closed loop torque control
7 State different methods of braking for dc separately excited mo tor and explain any
one of them in detail.
TE Electrical (Semester-VI) Page 54