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
2014-15, Even Semester
B. Tech 8th Semester
Index: Course–File
Year : IV
Subject: Switch Gear & Protection
Session: 2014-15, 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: 2014-15, Even Semester
Rajasthan Technical University, Kota
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Roll No.
Student Name
Sem : VIII
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Course Schedule
Year : IV
Subject: Switch Gear & Protection
Session: 2014-15, Even Semester
Sem : VIII
Rajasthan Technical University, Kota
1.
Name of the Faculty
: Dr.Dinesh Birla
2.
Designation
: Professor
3.
Department
: Electrical Engineering
Course Details
Name of the Programme
: B. Tech.
Batch
: Electrical
Branch
: Electrical
Semester
: VIII
Title of the Subject
: Switch Gear & 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: 2014-15, Even Semester
Sem : VIII
Rajasthan Technical University, Kota
1.
Name of the Faculty
: Dr.Dinesh Birla
2.
Designation
: Professor
3.
Department
: Electrical Engineering
SYLLABUS COPY:B.Tech VIII-SEMESTER
8EE3 Switch Gear & 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
2
3
4
5
Static Relay
Static
Differential
Relay
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
3.1
Mid Term Examinations (MTE I & MTE II)
3.2
Assignment / Tutorials
3.3
Viva wherever applicable
3.4
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: 2014-15, Even Semester
Sem : VIII
Rajasthan Technical University, Kota
1.
Name of the Faculty
: Dr.Dinesh Birla
2.
Designation
: 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: 2014-15, Even Semester
Rajasthan Technical University, Kota
1.
Name of the Faculty
: Dr.Dinesh Birla
2.
Designation
: Professor
3.
Department
: Electrical Engineering
Sem : VIII
The General Categories of Program Outcomes are:
Sr.
No.
General Categories of Program Outcomes
a
Ability to acquire knowledge of specific discipline or professional area with an ability to discriminate,
evaluate, analyze and synthesize existing and new knowledge, and integration of the same for enhancement
of knowledge.
Ability to formulate and analyse complex electrical engineering problems.
b
c
Ability to solve engineering problems and arrive at feasible, optimal solutions after considering public health
and safety.
d
Ability to apply appropriate research methodologies, techniques and tools, design,conduct experiments,
analyse and interpret data.
e
Ability to apply appropriate techniques, resources, and modern engineering
f
g
Ability to collaborative-multidisciplinary scientific research,demonstrate a capacity for self-management and
teamwork.
Ability to manage projects efficiently after consideration of economic and financial factors.
h
Ability to make effective presentations and design documentation by adhering to appropriate standards.
i
Ability to engage in life-long learning independently to improve knowledge and competence
j
Ability to contribute to the community for sustainable development of society
k
Ability to learn from mistakes without depending on externalfeedback
More on Course Schedule
Year : IV
Subject: Switch Gear & Protection
Session: 2014-15, Even Semester
Sem : VIII
Rajasthan Technical University, Kota
1.
Name of the Faculty
: Dr.Dinesh Birla
2.
Designation
: 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.
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.
III
IV
V
More on Course Schedule
Year : IV
Subject: Switch Gear & Protection
Session: 2014-15, 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
c
d
e
X
X
X
X
X
X
f
g
h
i
j
k
X
II
X
III
X
IV
X
V
X
X
X
X
X
X
X
X
X
Assignment Sheet - I
Year : IV
Subject: Switch Gear & Protection
Session: 2014-15, Even Semester
Rajasthan Technical University, Kota
1.
Name of the Faculty
: Dr.Dinesh Birla
2.
Designation
: Professor
3.
Department
: Electrical Engineering
Assignment- I
Q1. Discuss static mho relay and reliaze it with the help of amplitude and phase Comparator.
Q2. Discuss phase comparators-vector product type and coincidence type.
Q3. Discuss duality in comparator.
Q4. Discuss various type of static relays their merits and demerits.
Sem : VIII
Assignment Sheet - II
Year : IV
Subject: Switch Gear & Protection
Session: 2014-15, Even Semester
Rajasthan Technical University, Kota
1.
Name of the Faculty
: Dr.Dinesh Birla
2.
Designation
: Professor
3.
Department
: Electrical Engineering
Assignment-II
Q1. What are the situations where DTOC relays are preferred over IDMT relays?
Q2. Static impedence relay and reliaze it with the help of amplitude and phase Comparator.
Q3. What is the meaning of the term 'directional' Vis a Vis directional relaying?
Q4.Explain the overshoot time of a relay and its significance.
Sem : VIII
Assignment Sheet - III
Year : IV
Subject: Switch Gear & Protection
Session: 2014-15, Even Semester
Rajasthan Technical University, Kota
1.
Name of the Faculty
: Dr.Dinesh Birla
2.
Designation
: Professor
3.
Department
: Electrical Engineering
Assignment-III
Q1. Explain the principle of carrier-based phase comparison scheme.
Q2. Explain the working principle of distance relays.
Q3 Write short note on
a) Mho relay with blinders.
b) Effect of power swing on the performance of distance relay.
c) Out Of Step tripping and blocking relay.
Sem : VIII
Assignment Sheet - IV
Year : IV
Subject: Switch Gear & Protection
Session: 2014-15, Even Semester
Rajasthan Technical University, Kota
1.
Name of the Faculty
: Dr.Dinesh Birla
2.
Designation
: Professor
3.
Department
: Electrical Engineering
Assignment-IV
Q1. What is breaking capacity?
Q2. What are the types of air blast circuit breaker?
Q3.What are the advantages of SF6 circuit breaker?
Sem : VIII
Assignment Sheet - V
Year : IV
Subject: Switch Gear & Protection
Session: 2014-15, Even Semester
Rajasthan Technical University, Kota
1.
Name of the Faculty
: Dr.Dinesh Birla
2.
Designation
: Professor
3.
Department
: Electrical Engineering
Assignment-V
Q1 Discuss SF6 and Vaccum Circuit Brakers ?
Q2. What paradigm shift can be seen with the development of numerical relays?
Q3. Draw the block diagram of the numerical relay.
Sem : VIII
Tutorial Sheet – I
Year : IV
Subject: Switch Gear & Protection
Session: 2014-15, Even Semester
Sem : VIII
Rajasthan Technical University, Kota
1.
Name of the Faculty
: Dr.Dinesh Birla
2.
Designation
: Professor
3.
Department
: Electrical Engineering
TUTORIAL-1
Q.1 Explain phase splitting type comparator by drawing a neat diagram and describe the working.
Q.2 Give a classification of phase type comparators and explain how OP-AMP works as level detector.
Tutorial Sheet – II
Year : IV
Subject: Switch Gear & Protection
Session: 2014-15, Even Semester
Rajasthan Technical University, Kota
1.
Name of the Faculty
: Dr.Dinesh Birla
2.
Designation
: Professor
3.
Department
: Electrical Engineering
Tutorial-II
Q.1How amplitude and phase comparator exhibits duality?
Q.2 Describe how static distance relay is realized by a two input phase comparator relay.
Sem : VIII
Tutorial Sheet – III
Year : IV
Subject: Switch Gear & Protection
Session: 2014-15, Even Semester
Rajasthan Technical University, Kota
1.
Name of the Faculty
: Dr.Dinesh Birla
2.
Designation
: Professor
3.
Department
: Electrical Engineeing
Tutorial-III
Q1. Describe basic principle of air based circuit breaker.
Q2 Explain carrier assisted distance protection.
Sem : VIII
Tutorial Sheet – IV
Year : IV
Subject: Switch Gear & Protection
Session: 2014-15, Even Semester
Rajasthan Technical University, Kota
1.
Name of the Faculty
: Dr.Dinesh Birla
2.
Designation
: Professor
3.
Department
: Electrical Engineering
Tutorial-IV
Q1 What is mean by arc interruption .Discuss various type of arc interruption.
Q2. Describe the voltage range with regard to the application of various C.B.
Sem : VIII
Tutorial Sheet – V
Year : IV
Subject: Switch Gear & Protection
Session: 2014-15, Even Semester
Sem : VIII
Rajasthan Technical University, Kota
1.
Name of the Faculty
: Dr.Dinesh Birla
2.
Designation
: Professor
3.
Department
: Electrical Engineering
Tutorial-V
Q1. Explain the statement that all numerical relays have the same hardwarebut what distinguishes the relay is the
underlying software.
Q2. What are the drawbacks of a very high sampling frequency?
Year : IV
LECTURE PLAN
Subject:
Switch Gear & Protection
Sem : VIII
Subject Code: 8EE3
Duration of Lesson: 55 min
Session: 2014-15, Even Semester
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
Duration 1Hr.
Session: 2014-15, Even Semester
Rajasthan Tecnical university,Kota
Year : IV
Sem : VIII
Midterm Question Paper-I
Date:13/03/2015
Duration: 1Hr
Maximum Marks: 10
Instructions to Candidates: Attempt all questions.
Q.1 Give a classification of phase type comparators and explain how OP-AMP works as level detector.
Q.2 Explain phase splitting type comparator by drawing a neat diagram and describe the working.
Q.3 How amplitude and phase comparator exhibits duality?
II Mid Term Question Paper
Subject: Switch Gear & Protection
Subject Code:8EE3
Duration 1Hr.
Session: 2014-15, Even Semester
Rajasthan Tecnical university,Kota
Midterm Question Paper-II
Date:15/04/2015
Duration: 1Hr
Maximum Marks: 10
Instructions to Candidates: Attempt all questions.
Q.1 Describe how static distance relay is realized by a two input phase comparator relay.
Q.2 Describe basic principle of air based circuit breaker.
Q.3 Describe the voltage range with regard to the application of various C.B.
Year : IV
Sem : VIII
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: 2014-15, Even Semester
Student Name
Average
Marks
obtained in
MT I & MT II
25
26
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29
30
31
32
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