Rajasthan Technical University, Kota COURSE – FILE SWITCH GEAR & PROTECTION

Rajasthan Technical University, Kota
COURSE – FILE
SWITCH GEAR & PROTECTION
Name
Branch
Session
Semester
:
:
:
:
Dr. Dinesh Birla
Electrical Engineering
2012-13, Even Semester
B. Tech 8th Semester
Index: Course–File
Year : IV
Subject: SWITCHGEAR & PROTECTION
Session: 2012-13, Even Semester
Rajasthan Technical University, Kota
Sr.
No.
Content/ Item no.
1
Students Detail
2
4
5
Course Schedule
Course-File General Format
Time-Table
Syllabus
Course Plan
More on Course Schedule
Method of Evaluation
Guidelines to Study the Subject
Program Outcomes
Course Outcomes
Objectives – Outcome Relationship Matrix
Assignment-1
Assignment-2
6
7
Assignment-3
Assignment-4
8
Assignment-5
10
Tutorial-1
11
Tutorial-2
12
Tutorial-3
13
Tutorial-4
14
Tutorial-5
15
Lecture Plan
17
Mid–Term Question Paper (I & II)
18
Performance of Students in Mid Terms
3
Sem : VIII
Page
No.
Student Details
Year : IV
Subject: Switch Gear & Protection
Session: 2012-13, Even Semester
Rajasthan Technical University, Kota
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Roll No.
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Sem : VIII
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Course Schedule
Year : IV
Subject: Switch Gear & Protection
Session: 2012-13, Even Semester
Sem : VIII
Rajasthan Technical University, Kota
1.
Name of the Faculty
: Dr.Dinesh Birla
2.
Designation
: Associate Professor
3.
Department
: Electrical Engineering
Course Details
Name of the Programme
: B. Tech.
Batch
: Electrical
Branch
: Electrical
Semester
: VIII
Title of the Subject
: SWITCHGEAR & PROTECTION
Subject Code : 8EE3
No. of Students: 72
General: About Course File Format
1.
2.
3.
4.
5.
6.
7.
8.
9.
10.
Time Table and Syllabus.
Course Schedule including Course Plan.
Experiments List and Lab manual also, if required.
List of Assignments / Tutorials/ Seminar Topics given to students.
Tutorial Sheet (If required, as per the syllabus).
Lecture Plan.
Model Question Paper of the subject distributed to students included (Question Bank of important
Questions).
Mid –Term Question Paper (I & II) and answer-books.
Question of previous years available by University.
Marks details of the Students in respect of MTE I (Mid Term Exam) and MTE II.
Course File
Year : IV
Subject: Switch Gear & Protection
Session: 2012-13, Even Semester
Sem : VIII
Rajasthan Technical University, Kota
1.
Name of the Faculty
: Dr.Dinesh Birla
2.
Designation
: Associate Professor
3.
Department
: Electrical Engineering
SYLLABUS COPY:B.Tech VIII-SEMESTER
8EE3 SWITCHGEAR & PROTECTION
Unit-1 (i) Static Relays: Introduction to static relays, merits and demerits. Comparators: amplitude and phase
comparators, duality between amplitude and phase comparators. Introduction to (a) amplitude comparatorscirculating current type, phase splitting type and sampling type, (b) phase comparators-vector product type and
coincidence type.
(ii) Static over Current Relays: Introduction to instantaneous, definite time, inverse time and directional
overcurrent relays.
Unit-2 (i) Static Differential Relays: Brief description of static differential relay schemes-single phase and three
phase schemes. Introduction to static differential protection of generator and transformer.
(ii) Static Distance Relays: Introduction to static impedance, reactance and mho relays.
Unit-3 (i) Carrier Current Protection: Basic apparatus and scheme of power line carrier system. Principle of
operation of directional comparison and phase comparison carrier protection and carrier assisted distance
protection.
(ii) Distance Protection: Effect of power swings on the performance of distance protection. Out of step tripping
and blocking relays, mho relay with blinders. Introduction to quadrilateral and elliptical relays.
Unit-4 Circuit Breakers I: Electric arc and its characteristics, arc interruption-high resistance interruption and
current zero interruption. Arc interruption theories–recovery rate theory and energy balance theory. Restriking
voltage and recovery voltage, develop expressions for restriking voltage and RRRV. Resistance switching, current
chopping and interruption of capacitive current. Oil circuit breakers-bulk oil and minimum oil circuit breakers. Air
circuit breakers.
Unit-5 (i) Circuit Breakers II: Air blast, SF6 and vacuum circuit breakers. Selection of circuit breakers, rating of
circuit breakers.
(ii) Digital Protection: Introduction to digital protection. Brief description of block diagram of digital relay.
Introduction to digital overcurrent, transformer differential and transmission line distance protection.
COURSE PLAN
Unit
Name of
No.
Unit
1
Static Relay
Static
Differential
Relay
2
3
4
5
Carrier
Current
Protection
Circuit
Breakers I
Circuit
Breakers II
Topics to be covered as divided in the unit
Introduction to static relays, merits and demerits and introduction to amplitude
comparater
Introduction to Phase comparators and duality
Various type of Amplitude comparator’s
Various type of Phase comparator’s and Introduction to Static over Current
Relays.
Introduction to Instantaneous Static over Current relays and Definite time
Static over Current Relays.
Introduction to Inverse time Static over Current Relays and Introduction to
Directional Static over Current Relays.
Brief description of static differential relay schemes and Introduction to single
phase static differential relay schemes
Introduction to three phase static differential relay schemes and Introduction to
static differential protection of generator
Introduction to static differential protection of transformer and Introduction to
static impedance relay
Introduction to static impedance relay and Introduction to static reactance
relay.
Introduction to static mho relays.
Basic apparatus and scheme of power line carrier system and Principle of
operation of directional comparison carrier protection
Principle of operation of phase comparison carrier protection and carrier
assisted distance protection.
Effect of power swings on the performance of distance protection and Out of
step tripping and blocking relays.
Mho relay with blinders and Introduction to quadrilateral and elliptical relays.
Electric arc and its characteristics and Arc interruption-high resistance
interruption and current zero interruption.
Arc interruption theories–recovery rate theory and Arc interruption theories–
energy balance theory.
Restriking voltage and recovery voltage and Expressions for restriking voltage
and RRRV.
Air circuit breakers.
Resistance switching, current chopping and interruption of capacitive current.
Oil circuit breakers-bulk oil circuit breakers and Oil circuit breakers- minimum
oil circuit breakers.
Air blast circuit breakers and SF6 circuit breakers.
Vacuum circuit breakers and Selection of circuit breakers, rating of circuit
breakers.
Introduction to digital protection and Brief description of block diagram of
digital relay.
Lecture
No.
1
2
3
4,5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26,27
Introduction to digital overcurrent protection and Introduction to transformer
differential protection.
Introduction to digital transmission line distance protection.
3
METHOD OF EVALUATION
1. Mid Term Examinations (MTE I & MTE II)
2. Assignment / Tutorials
3. Viva wherever applicable
4. Term End Examination
Foundation Topics:
 Introduction to per unit quantities
 Introduction to Symmetrical component and fault analysis methods
Advanced Topics:
 Admittance model and Admittance matrix
 Impedance model and Impedance matrix
28
29,30
More on Course Schedule
Year : IV
Subject: Switch Gear & Protection
Session: 2012-13, Even Semester
Sem : VIII
Rajasthan Technical University, Kota
1.
Name of the Faculty
: Dr.Dinesh Birla
2.
Designation
: Associate Professor
3.
Department
: Electrical Engineering
Guidelines to Study the Subject
1. Preparation: - Basic fundamental of knowledge of simple power flow and faults for their study and
analysis.
2. Core Competence: - To provide students the knowledge of power system design and analysis and to
determine the operational performance of existing systems.
3. Breadth: -To prepare for a better future in the field of designing new electrical systems.
Learning Environment: - To provide student a friendly and professional environment.
More on Course Schedule
Year : IV
Subject: Switch Gear & Protection
Session: 2012-13, Even Semester
Sem : VIII
Rajasthan Technical University, Kota
The General Categories of Program Outcomes are:
Sr.
No.
General Categories of Outcomes
a
b
c
An ability to apply knowledge of mathematics, science, and engineering
An ability to design and conduct experiment, as well as to analyze and interpret data
An ability to design a system, component or process to meet desired need within realistic, Constraints such
as economic, environmental, social, political, ethical, health and safety, Manufacturability and sustain
ability.
An ability to function on multi-disciplinary teams.
An ability to identify, formulates, and solves engineering Problems.
An understanding of professional and ethical responsibility
An ablity to communicate effectIely.
The broad education necessary to understand the impact of engineering solutions in a global, economic,
environmental, and societal context.
A recognition of the need for, and an ability to engage in life-long learning
Knowledge of contemporary issues.
An ability to use the techniques, skills, and modern engineering tools necessary of engineering practice.
d
e
f
g
h
i
j
k
More on Course Schedule
Year : IV
Subject: Switch Gear & Protection
Session: 2012-13, Even Semester
Sem : VIII
Rajasthan Technical University, Kota
1.
Name of the Faculty
: Dr.Dinesh Birla
2.
Designation
: Associate Professor
3.
Department
: Electrical Engineering
On completion of this Subject / Course the students shall be able to understand the following:
S. No.
I
Objectives
Provides the knowledge of Static Relays, merits and demerits, amplitude and phase
comparators, duality between amplitude and phase comparators.
Outcomes
a,k
II
Provides knowledge of instantaneous, definite time, inverse time and directional over
current relays, static differential protection of generator and transformer.
Provides practical knowledge of static impedance, reactance and mho relays, effect of
power swings on the performance of distance protection, Out of step tripping and
blocking relays, mho relay with blinders.
Provides knowledge of Electric arc and its characteristics, arc interruption-high
resistance interruption and current zero interruption, Arc interruption theories–recovery
rate theory and energy balance theory.
Provides techniques for Air blast, SF6 and vacuum circuit breakers, Selection of circuit
breakers, rating of circuit breakers, transformer differential and transmission line
distance protection.
a,b,c,d,e,k
III
IV
V
a,c,d
a,e,i
a,f,g,h,i,j
Assignment Sheet - I
Year : IV
Subject: Switch Gear & Protection
Session: 2012-13, Even Semester
Sem : VIII
Rajasthan Technical University, Kota
Objectives – Outcome Relationship Matrix (Indicate the relationship by x mark).
Program Outcomes
Course Objectives
I
a
b
X
X
II
c
d
f
X
X
X
h
X
i
j
k
X
X
IV
g
X
III
V
e
X
X
X
X
X
X
X
X
X
Assignment Sheet - I
Year : IV
Subject: Switch Gear & Protection
Session: 2012-13, Even Semester
Rajasthan Technical University, Kota
1.
Name of the Faculty
: Dr.Dinesh Birla
2.
Designation
: Associate Professor
3.
Department
: Electrical Engineering
Assignment- I
Q1 What do you understand by Static relay ? Explain
Q2 Discuss duality in comparator?
Q3 Explain phase splitting type and sampling type amplitude comparator?
Q4 Discuss Various type of phase comparator.
Sem : VIII
Assignment Sheet - II
Year : IV
Subject: Switch Gear & Protection
Session: 2012-13, Even Semester
Rajasthan Technical University, Kota
1.
Name of the Faculty
: Dr.Dinesh Birla
2.
Designation
: Associate Professor
3.
Department
: Electrical Engineering
Assignment-II
Q1 Discuss various type of static differential relay ?
Q2 Static impedence relay and reliaze it with the help of amplitude and phase Comparator.
Q3 Discuss static mho relay and reliaze it with the help of amplitude and phase Comparator.
Q4 Discus sstatic differential protection of generator.
Sem : VIII
Assignment Sheet - III
Year : IV
Subject: Switch Gear & Protection Session:
2012-13, Even Semester
Rajasthan Technical University, Kota
1.
Name of the Faculty
: Dr.Dinesh Birla
2.
Designation
: Associate Professor
3.
Department
: Electrical Engineering
Assignment- III
.
Q1 Explain different kind of principal employed in Power Line Protection.
Q2 Explain carrier assisted distance protection.
Q3 Write short note on
a) Out Of Step tripping and blocking relay.
b) Mho relay with blinders.
c) Effect of power swing on the performance of distance relay
Sem : VIII
Assignment Sheet - IV
Year : IV
Subject: Switch Gear & Protection
Session: 2012-13, Even Semester
Rajasthan Technical University, Kota
1.
Name of the Faculty
: Dr.Dinesh Birla
2.
Designation
: Associate Professor
3.
Department
: Electrical Engineering
Assignment- IV
Q1 What is mean by arc interruption .Discuss various type of arc interruption.
Q2 What do you understand by circuit breaker? Write a short note on Oil Circuit Breaker.
Q3 Write a short note on
a) RRRV
b) Restriking Voltage
c) Recovery rate theory
Sem : VIII
Assignment Sheet - V
Year : IV
Subject: Switch Gear & Protection
Session: 2012-13, Even Semester
Rajasthan Technical University, Kota
1.
Name of the Faculty
: Dr.Dinesh Birla
2.
Designation
: Associate Professor
3.
Department
: Electrical Engineering
Assignment- V
Q1 Discuss SF6 and Vaccum Circuit Brakers ?
Q2 Explain Digital Relay ?
Q3 Write Short note on
a) Rating Of Circuit Breakers
b) Selection Of Circuit Breakers
Sem : VIII
Tutorial Sheet – I
Year : IV
Subject: Switch Gear & Protection
Session: 2012-13, Even Semester
Rajasthan Technical University, Kota
1.
Name of the Faculty
: Dr.Dinesh Birla
2.
Designation
: Associate Professor
3.
Department
: Electrical Engineering
TUTORIAL-1
Q1 What do you understand by Static relay? Explain
Q2 Discuss duality in comparator?
Sem : VIII
Tutorial Sheet – II
Year : IV
Subject: Switch Gear & Protection
Session: 2012-13, Even Semester
Rajasthan Technical University, Kota
1.
Name of the Faculty
: Dr.Dinesh Birla
2.
Designation
: Associate Professor
3.
Department
: Electrical Engineering
Tutorial-II
Q1 Discuss various type of static differential relay?
Q2 Static impedence relay and reliaze it with the help of amplitude and phase Comparator.
Sem : VIII
Tutorial Sheet – III
Year : IV
Subject: Switch Gear & Protection
Session: 2012-13, Even Semester
Rajasthan Technical University, Kota
1.
Name of the Faculty
: Dr.Dinesh Birla
2.
Designation
: Associate Professor
3.
Department
: Electrical Engineeing
Tutorial-III
Q1 Explain different kind of principal employed in Power Line Protection.
Q2 Explain carrier assisted distance protection.
Sem : VIII
Tutorial Sheet – IV
Year : IV
Subject: Switch Gear & Protection
Session: 2012-13, Even Semester
Rajasthan Technical University, Kota
1.
Name of the Faculty
: Dr.Dinesh Birla
2.
Designation
: Associate Professor
3.
Department
: Electrical Engineering
Tutorial-IV
Q1 What is mean by arc interruption .Discuss various type of arc interruption.
Q2 What do you understand by circuit breaker? Write a short note on Oil Circuit Breaker.
Sem : VIII
Tutorial Sheet – V
Year : IV
Subject: Switch Gear & Protection
Session: 2012-13, Even Semester
Rajasthan Technical University, Kota
1.
Name of the Faculty
: Dr.Dinesh Birla
2.
Designation
: Associate Professor
3.
Department
: Electrical Engineering
Tutorial-V
Q1 Discuss SF6 and Vaccum Circuit Brakers ?
Q2 Explain Digital Relay ?
Sem : VIII
LECTURE PLAN
Subject:
Year : IV
Switch Gear & Protection
Subject Code: 8EE3
Duration of Lesson: 55 min
Session: 2012-13, Even Semester
Sem : VIII
Rajasthan Technical University,Kota
Lesson No.1 Title: Introduction to static relays, amplitude comparators
S.NO
Topic
Time Alloted(min)
1.
Introduction to static relays, merits and demerits.
35
2.
Introduction to amplitude comparators
20
Lesson No.2 Title: Introduction to Phase comparators, Duality
S.NO
Topic
Time Alloted(min)
1
Introduction to Phase comparators
20
2
Duality between amplitude and phase comparators.
35
Lesson No.3 Title: Circulating Current, Phase Splitting, Sampling type amplitude comparator
S.NO
1.
2.
3.
Topic
Circulating current type amplitude comparators
Phase splitting type amplitude comparators
Sampling type amplitude comparators
Time Alloted(min)
20
20
15
Lesson No.4 Title: Vector product. Coincidence type phase comparator
S.NO
1.
2.
Topic
Vector product type phase comparators
Coincidence type phase comparators
Time Alloted(min)
40
15
Lesson No.5 Title:Coincidence type phase comparator, static over Current Relays
S.NO
1.
2
Topic
Coincidence type phase comparators
Introduction to Static over Current Relays
Time Alloted(min)
40
15
Lesson No.6 Title:Instantaneous, Definite time Static Over Current Relays
S.NO
1.
2.
Topic
Introduction to Instantaneous Static over Current Relays.
Introduction to Definite time Static over Current Relays.
Time Alloted(min)
25
25
Lesson No.7 Title:Inverse time, Directional Static Over Current Relays
S.NO
1.
2.
Topic
Introduction to Inverse time Static over Current Relays.
Introduction to Directional Static over Current Relays.
Time Alloted(min)
25
25
Lesson No.8 Title: Remedial class, Class test
S.NO
1.
2.
Topic
Remedial Class
Class Test
Time Alloted(min)
15
40
Lesson No.9 Title:Static Differential Relay
S.NO
1.
2.
Topic
Brief description of static differential relay schemes
Introduction to single phase static differential relay schemes
Time Alloted(min)
20
35
Lesson No.10 Title: Static Differential relay, Differential protection of Generator
S.NO
1.
2
Topic
Introduction to three phase static differential relay schemes
Introduction to static differential protection of generator
Time Alloted(min)
20
35
Lesson No.11 Title: Differential protection of Transformer, Static impedance relay
S.NO
1.
2.
Topic
Introduction to static differential protection of transformer.
Introduction to static impedance relay
Time Alloted(min)
30
25
Lesson No.12 Title: Static impedance, reactance relay
S.NO
1.
2.
Topic
Introduction to static impedance relay
Introduction to static reactance relay
Time Alloted(min)
15
40
Lesson No.13 Title: Static Mho relay
S.NO
1.
2.
Topic
Introduction to static mho relays.
Problem
Time Alloted(min)
40
15
Lesson No.14 Title: Remedial Class, Class Test
S.NO
1.
2.
Topic
Time Alloted(min)
15
40
Remedial Class
Class Test
Lesson No. 15 Title: Power line carrier system, carrier protection
S.NO
1.
2.
Topic
Basic apparatus and scheme of power line carrier system.
Principle of operation of directional comparison carrier protection
Time Alloted(min)
30
25
Lesson No. 16 Title: carrier protection, carrier assisted distance protection
S.NO
1.
2.
Topic
Principle of operation of phase comparison carrier protection
carrier assisted distance protection.
Time Alloted(min)
30
25
Lesson No. 17 Title: performance of distance protection, Out of step tripping and blocking relays
S.NO
1.
2.
Topic
Effect of power swings on the performance of distance protection.
Out of step tripping and blocking relays.
Time Alloted(min)
35
20
Lesson No.18 Title: Mho relay with blinders, quadrilateral and elliptical relays
S.NO
1.
2
Topic
Mho relay with blinders
Introduction to quadrilateral and elliptical relays.
Time Alloted(min)
20
35
Lesson No.19 Title: Remedial Class, Class Test
S.NO
1.
2.
Topic
Remedial Class
Class Test
Time Alloted(min)
15
40
Lesson No. 20 Title: Electric arc, current zero interruption
S.NO
1.
2.
Topic
Electric arc and its characteristics
Arc interruption-high resistance interruption and current zero interruption.
Time Alloted(min)
25
30
Lesson No. 21 Title: Arc interruption theories
S.NO
1.
2.
Topic
Arc interruption theories–recovery rate theory and
Arc interruption theories–energy balance theory.
Time Alloted(min)
30
25
Lesson No. 22 Title: Restriking voltage and recovery voltage
S.NO
1.
2.
Topic
Restriking voltage and recovery voltage
Expressions for restriking voltage and RRRV.
Time Alloted(min)
10
45
Lesson No.23 Title: Resistance switching, current chopping
S.NO
1.
Topic
Resistance switching, current chopping and interruption of
capacitive current.
Time Alloted(min)
55
Lesson No.24 Title: Oil circuit breakers
S.NO
1.
2.
Topic
Oil circuit breakers-bulk oil circuit breakers
Oil circuit breakers- minimum oil circuit breakers
Time Alloted(min)
30
25
Lesson No. 25 Title: Air circuit breakers
S.NO
1.
2.
Topic
Air circuit breakers.
Problems
Time Alloted(min)
45
10
Lesson No. 26 Title: Remedial Class, Class Test
S.NO
1.
2.
Topic
Remedial Class
Class Test
Time Alloted(min)
15
40
Lesson No. 27 Title: Air blast circuit breakers, SF6 circuit breakers.
S.NO
1.
2.
Topic
Air blast circuit breakers.
SF6 circuit breakers.
Time Alloted(min)
25
30
Lesson No. 28 Title: Vacuum circuit breakers, rating of circuit breakers
S.NO
1.
2.
Topic
Vacuum circuit breakers.
Selection of circuit breakers, rating of circuit breakers.
Time Alloted(min)
30
25
Lesson No. 29 Title: digital protection, digital relay
S.NO
1.
2.
Topic
Introduction to digital protection.
Brief description of block diagram of digital relay.
Time Alloted(min)
25
30
Lesson No. 30 Title: digital overcurrent protection, transformer differential protection
S.NO
1.
2.
Topic
Introduction to digital overcurrent protection.
Introduction to transformer differential protection.
Time Alloted(min)
25
30
Lesson – 31; Title: Introduction to digital transmission line distance protection
S.NO
1.
2.
Topic
Introduction to digital transmission line distance protection.
Problem
Time Alloted(min)
35
20
Lesson – 32; Title: Remedial Class, Class Test
S.NO
1.
2.
Topic
Remedial Class
Class Test
Time Alloted(min)
15
40
I Mid Term Question Paper
Subject: Switch Gear & Protection
Subject Code:8EE3
Rajasthan Tecnical university,Kota
Duration 1Hr.
Session: 2012-13, Even Semester
Year : IV
Sem : VIII
Midterm Question Paper-I
Date: 19/03/2013
Duration: 1 Hr.
Maximum Marks: 10
Instructions to Candidates: Attempt all questions.
Q.1 Describe the coincidence type comparator with neat figure and its constituents.
Q.2 Describe the various type of IDMT over current relays, writing their equations from time of
operation, explaining characteristics and applications.
Q.3 Draw block diagram of time delay static over current relay. Explaining the working of various
blocks.
II Mid Term Question Paper
Subject: Switch Gear & Protection
Subject Code:8EE3
Rajasthan Tecnical university,Kota
Duration 1Hr.
Session: 2012-13, Even Semester
Year : IV
Sem : VIII
Midterm Question Paper-II
Date: 17/04/2013
Duration: 1 Hr
Maximum Marks: 10
Instructions to Candidates: Attempt all questions.
Q.1 How a phase comparator can work as a static relay?
Q.2 Describe the block diagram of static directional over current relays explaining function of
each block.
Q.3 Give a comparison of various type of distance relays, explaining point by point.
Performance of Students in Mid Term Exams
Subject: Switch Gear & Protection
Subject Code: 8EE3
Maximum Marks: 20
Rajasthan Tecnical university,Kota
S. No.
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Roll No.
Year : IV
Sem : VIII
Session: 2012-13, Even Semester
Student Name
Average
Marks
obtained in
MT I & MT II
24
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