Rajasthan Technical University, Kota · 2015-11-26 · Rajasthan Technical University, Kota COURSE - FILE Name : Dr ... block diagram of digital relay, sampling theorem, correlation

Rajasthan Technical University, Kota

COURSE - FILE

Name : Dr. Dinesh Birla Branch : Electrical Engineering Session : 2013-14, Even Semester Semester : M. Tech II Semester

Specialization : Power System


Index: Course–File

Subject: ADVANCED POWER SYSTEM PROTECTION

Session: 2013-14, Even Semester

Year : I

Sem : II

Sr. No.

Content/ Item no. Page No.

1 Students Detail 3

2 Course Schedule Course-File General Format Time-Table Syllabus Course Plan

3-5

3 More on Course Schedule Method of Evaluation Guidelines to Study the Subject Program Outcomes Course Outcomes Objectives – Outcome Relationship Matrix

6-11

4 Assignment-1 12 5 Assignment-2 13

6 Assignment-3 14 7 Assignment-4 15

8 Assignment-5 16

10 Tutorial-1 17

11 Tutorial-2 18

12 Tutorial-3 19

13 Tutorial-4 20

14 Tutorial-5 21

15 Lecture Plan 22-26

17 Mid–Term Question Paper (I & II) 27-28

18 Performance of Students in Mid Terms 29


Student Details

Subject: ADVANCED POWER SYSTEM

PROTECTION Session: 2013-14, Even Semester

Year : I

Sem : II

S. No. Roll No. Student Name

1 13EUCPS600 AKHILESH KUMAR 2 13EUCPS601 AMIT SINGHAL 3 13EUCPS602 AMRITA JAIN 4 13EUCPS603 ASHU VERMA 5 13EUCPS604 BHASKAR SHARMA 6 13EUCPS605 BHEEMRAJ SUMAN 7 13EUCPS606 FAIZAL KHAN 8 13EUCPS607 HARSHITA BAJPAI 9 13EUCPS608 HEM MANOHAR 10 13EUCPS609 KRIPAL SINGH 11 13EUCPS610 NEHA KUMARI 12 13EUCPS611 POOJA NAGAR 13 13EUCPS612 POOJA SHARMA 14 13EUCPS613 RAJARAM CHANDRA MEENA 15 13EUCPS614 RANJEET KUMAR 16 13EUCPS615 KM SHIVANGI CHAUHAN 17 13EUCPS616 SHOBHIT JAIN 18 13EUCPS617 VIVEK NATH

1. Name of the Faculty : Dr.Dinesh Birla

2. Designation : Professor

3. Department : Electrical Engineering

Course Details

Name of the Programme : M. Tech. Batch : Electrical

Branch : Electrical Semester : II

Title of the Subject : ADVANCED POWER SYSTEM PROTECTION

Subject Code : 2MPS2 No. of Students: 18

General: About Course File Format 1. Time Table and Syllabus. 2. Course Schedule including Course Plan. 3. Experiments List and Lab manual also, if required. 4. List of Assignments / Tutorials/ Seminar Topics given to students. 5. Tutorial Sheet (If required, as per the syllabus). 6. Lecture Plan. 7. Model Question Paper of the subject distributed to students included (Question Bank of important

Questions). 8. Mid –Term Question Paper (I & II) and answer-books. 9. Question of previous years available by University. 10. Marks details of the Students in respect of MTE I (Mid Term Exam) and MTE II.


Course Schedule



Year : I

Sem : II


Course File



Year : I

Sem : II




SYLLABUS COPY

2MPS2 ADVANCED POWER SYSTEM PROTECTION

(i) Static Relays: Introduction, merits and demerits of static relays. Comparators: amplitude and phase comparator, duality between amplitude and phase comparators. Circulating current type phase-splitting type and sampling type amplitude comparators. Vector product type and coincidence type phase Comparators. (ii) CTs & PTs: Current transformer (CT) Construction, measurement CT and protective CT. Type of potential transformers. Steady state ratio and phase angle errors in CTs and PTs. Transient errors in CT and CVT.

(i) Static Over Current Relays: Instantaneous over current relay, definite time over current relay, inverse-time over current relay, directional over current relay. (ii) Static Differential Relays: Differential relay scheme, single-phase static comparator, polyphase differential protection. Differential protection for generator and transformer.

(i) Static Distance Relays: Impedance relay, reactance relay and mho relay using amplitude and phase comparators. Polarized and offset mho relays. (ii) Carrier Current Protection: Phase Comparison scheme, carrier aided distance protection.

(i) Distance Protection: Effect of are resistance, power swings, line length and source impedance on the performance of distance protection. Out of step tripping and blocking relays. Mho relay with blinders. Quadrilateral and elliptical relays. Selection of distance relays. (ii) Induction Motor Protection: Various faults and abnormal operating conditions. Protection against faults, unbalance supply voltage, single phasing, over load and mechanical rotor faults, HRC fuses, over-current, percentage differential and earth fault protection. Negative sequence voltage relays and resistance temperature detector relay.

Digital Protection: Introduction to digital protection, block diagram of digital relay, sampling theorem, correlation with a reference wave, Fourier analysis of analogue and discrete signals, least error squared technique, digital filtering – low pass, high pass, finite impulse response and infinite impulse response fillers. Introduction to digital over-current, transformer differential and transmission line distance protection.

2. COURSE PLAN Sr. No.

Name of Unit

Topics to be covered as divided in the unit Lecture No.

1 Static Relay/ static over current relay

Introduction to static relays, merits and demerits and introduction to amplitude comparater

1

Introduction to Phase comparators and duality 2 Various type of Amplitude comparator’s 3 Various type of Phase comparator’s and Introduction to Static over Current Relays.

4.5

Introduction to Instantaneous Static over Current relays and Definite time Static over Current Relays.

6

Introduction to Inverse time Static over Current Relays and Introduction to Directional Static over Current Relays.

7

2 Static Differential Relay and static distance relay

Brief description of static differential relay schemes and Introduction to single phase static differential relay schemes

8

Introduction to three phase static differential relay schemes and Introduction to static differential protection of generator

9

Introduction to static differential protection of transformer and Introduction to static impedance relay

10

Introduction to static impedance relay and Introduction to static reactance relay. 11,12 3 Carrier

Current Protection And Distance Protection

Introduction to static mho relays. 13 Basic apparatus and scheme of power line carrier system and Principle of operation of directional comparison carrier protection.

14

Principle of operation of phase comparison carrier protection and carrier assisted distance protection.

15

Effect of power swings on the performance of distance protection and Out of step tripping and blocking relays.

16

Mho relay with blinders and Introduction to quadrilateral and elliptical relays. 17 4 Induction

Motor Protection

Various fault and abnormal operating conditions 18 Protection agaist fault ,unbalance operating condition 19 Singal phasing and over load and mechanical rotor fault 20 HRC fuses,differential and earth fault protection 21 Negative sequence voltage relays 22 Resistance temperature detector relay 23

5 Digital Protection

Introduction of digital relay,block diagram of digital relay 24 Sampling theorem correlation with reference wave c 25 Fourier transform of analogue and discrete signals 26 Least error square techniques, digital filtering 27 Low pass high pass 28 Finite impulse response 29 Finite impulse response filter 30 Introduction to digital overcurrent protection 31 Introduction to transformer differential protection. 32 Introduction to digital transmission line distance protection. 33


Course File



Year : I

Sem : II

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


More on Course Schedule



Year : I

Sem : II




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.





Year : I

Sem : II

1. Name of the Faculty : Dr. Dinesh Birla



On completion of this Subject/ Course the students shall be able to understand the following: Sr. No.

Objectives Outcomes

I Provides the knowledge of Static Relays, merits and demerits, amplitude and phase comparators, duality between amplitude and phase comparators.

a,b,k

II Provides knowledge of instantaneous, definite time, inverse time and directional over current relays, static differential protection of generator and transformer.

b,d,i

III 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.

e,h,j,k

IV Provides knowledge of digital relay, digital filtering, Fourier analysis of analogue and discrete signals.

c,d,f,i

V Provides techniques for protection against faults, unbalance supply voltage, single phasing, HRC fuses, over-current, percentage differential and earth fault protection.

a,c,e,j





Year : I

Sem : II

The General Categories of Program Outcomes are: Sr.No.

General Categories of Outcomes

a An ability to apply knowledge of mathematics, science, and engineering b An ability to design and conduct experiment, as well as to analyze and interpret data c

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.

d An ability to function on multi-disciplinary teams. e An ability to identify, formulates, and solves engineering Problems. f An understanding of professional and ethical responsibility g An ablity to communicate effectIely. h The broad education necessary to understand the impact of engineering solutions in a global, economic,

environmental, and societal context. i A recognition of the need for, and an ability to engage in life-long learning j Knowledge of contemporary issues. k An ability to use the techniques, skills, and modern engineering tools necessary of engineering practice.


Assignment Sheet - I



Year : I

Sem : II

Objectives – Outcome Relationship Matrix (Indicate the relationship by x mark). Program Outcomes

Course Objectives

a

b

c

d

e

f

g

h

i

j

k

I X X X

II X X X

III X X X X

IV X X X X

V X X X X


Assignment Sheet - I



Year : I

Sem : II




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.


Assignment Sheet - II



Year : I

Sem : II




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?


Assignment Sheet - III



Year : I

Sem : II




Assignment- III

. Q1 Explain carrier assisted distance protection. Q2 Write short note on

a) Effect of power swing on the performance of distance relay. b) Mho relay with blinders. c) Out Of Step tripping and blocking relay.

Q3 Explain different kind of principal employed in Power Line Protection.


Assignment Sheet - IV



Year : I

Sem : II




Assignment- IV

Q.1What are the various abnormal operating conditions from the load (mechanical) side to which an induction motor is likely to be subjected? Q.2 Why is protection of an induction motor against reversal of phase sequence required? Q.3 What are the effects of single phasing on the induction motor?


Assignment Sheet - V



Year : I

Sem : II




Assignment- V

Q1. Draw the block diagram of the numerical relay and Explain. Q2. State and explain Shannon's sampling theorem. Q3. What do you mean by Fourier analysis? Explain.


Tutorial Sheet – I



Year : I

Sem : II




TUTORIAL-1 Q1. What do you understand by Static relay? Explain Q2. Discuss duality in comparator? Q3. It is required that a break in the pilot wire from a CT carrying a current of 25 A and more should be detected by the supervisory relay. Calculate the setting of the supervisory relay?


Tutorial Sheet – II



Year : I

Sem : II




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. Q3. A 132 kV busbar consists of two incoming lines and four outgoing lines. The system is soiidly earthed and the switchgear capacity is 3500 LMVA at 132 kV The parameters are: Maximum full-load current in one line = 500 A Rs = CT secondary resistance = 0.7 R R lead wired = 2.0 R Relay load (1 A relay is used) = 1.0 R CT magnetizing current up to 120 V = 0.28 mA/V (assumed linear) CT saturation voltage Vknee > 120 V 1. If the over-current relay in the spill path is set at 1.0 A and the voltage setting Vknee is 100 V, find (a) the maximum 'through fault' current up to which the scheme will remain stable. (b) Whether the answer in part (a) is commensurate with the switchgear capacity. (c) the minimum internal fault current which will be detected by the scheme. (d) the setting for detecting minimum internal fault current of 500 A? (e) the value of the stabilizing resistance.


Tutorial Sheet – III



Year : I

Sem : II



3. Department : Electrical Engineeing

Tutorial-III Q1. Explain different kind of principal employed in Power Line Protection. Q2. Explain carrier assisted distance protection. Q3. Consider a single-phase 11 kV/11 kV 1.1 MVA transformer protected by percentage differential protection. CTs with 5 A secondaries are used. It is known that the magnetizing currents of the two CTs, for maximum external fault current, differ by 0.5 A. Assuming no other source of error and a minimum pick-up of 0.01 A, find the minimum percentage bias setting so that the scheme remains stable on maximum external fault current.


Tutorial Sheet – IV



Year : I

Sem : II




Tutorial-IV

Q1. What kind of protection is provided to an induction motor against overload? Q2. What are the consequences of running an induction motor on unbalanced supply voltage? Q3. A generalized phase comparator can have a phase angle margin of +α,-β The cosine-type phase comparator is a special case where α=β= 90ᵒ. How will the mho relay characteristic appear if the phase angle margin is changed to ±45ᵒ?


Tutorial Sheet – V



Year : I

Sem : II




Tutorial-V

Q1. How does Fourier transform differ from conventional Fourier analysis? Q2. What do you mean by a full cycle window? Q3. A 12-bit ADC has conversion time of 10 microseconds. What is the maximum frequency that can be acquired without using a sample and hold unit?


Lecture Plan Subject: ADVANCED POWER SYSTEM

PROTECTION Subject Code: 2MPS2

Duration of Lesson: 55 min Session: 2013-14, Even Semester

Year : I

Sem : II

Lesson No.1 Title: 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 amplitude comparator


1. Circulating current type amplitude comparators 20 2. Phase splitting type amplitude comparators 20 3. Sampling type amplitude comparators 15

Lesson No.4 Title: Vector product, Coincidence type phase comparator


1. Vector product type phase comparators 40 2. Coincidence type phase comparators 15

Lesson No.5 Title:Coincidence type phase comparator, static over Current Relays


1. Coincidence type phase comparators 40 2 Introduction to Static over Current Relays. 15

Lesson No.6 Title: Instantaneous, Definite time Static Over Current Relays


1. Introduction to Instantaneous Static over Current Relays. 25 2. Introduction to Definite time Static over Current Relays. 25

Lesson No.7 Title:Inverse time, Directional Static Over Current Relays


1. Introduction to Inverse time Static over Current Relays. 25 2. Introduction to Directional Static over Current Relays. 25

Lesson No.8 Title: Remedial class, Class test


1. Remedial Class 15 2. Class Test 40

Lesson No.9 Title:Static Differential Relay


1. Brief description of static differential relay schemes 20 2. Introduction to single phase static differential relay schemes 35

Lesson No.10 Title: Static Differential relay, Differential protection of Generator


1. Introduction to three phase static differential relay schemes 20 2 Introduction to static differential protection of generator 35

Lesson No.11 Title: Differential protection of Transformer, Static impedance relay


1. Introduction to static differential protection of transformer. 30 2. Introduction to static impedance relay 25

Lesson No.12 Title: Static impedance, reactance relay


1. Introduction to static impedance relay 15 2. Introduction to static reactance relay 40

Lesson No.13 Title: Static Mho relay


1. Introduction to static mho relays. 40 2. Problem 15

Lesson No.14 Title: Remedial Class, Class Test



Lesson No. 15 Title: Power line carrier system, carrier protection

S.NO Topic Time Alloted(min) 1. Basic apparatus and scheme of power line carrier system. 30 2. Principle of operation of directional comparison carrier protection 25

Lesson No. 16 Title: carrier protection, carrier assisted distance protection


1. Principle of operation of phase comparison carrier protection 30

2. carrier assisted distance protection. 25

Lesson No. 17 Title: distance protection, Out of step tripping

S.NO Topic Time Alloted(min) 1. Effect of power swings on the performance of distance protection. 35

2. Out of step tripping and blocking relays. 20

Lesson No.18 Title: Mho relay with blinders, quadrilateral and elliptical relays

S.NO Topic Time Alloted(min) 1. Mho relay with blinders 20 2 Introduction to quadrilateral and elliptical relays. 35

Lesson No.19 Title: Remedial Class, Class Test



Lesson No. 20 Title: Various fault

S.NO Topic Time Alloted(min) 1. Various fault and abnormal operating conditions 40 2. Numerical 15

Lesson No.21 Title: Protection agaist fault


1. Protection agaist fault , 30 2. unbalance operating condition 25

Lesson No. 22 Title: Singal phasing and over load and mechanical rotor fault

S.NO Topic Time Alloted(min) 1. Singal phasing and over load and mechanical rotor fault 50

Lesson No. 23 Title: HRC fuses,differential and earth fault protection


1. HRC fuses,differential and earth fault protection 40 2. Numerical 10

Lesson No. 24 Title: Negative sequence voltage relay


1. Negative sequence voltage relays 30 2. Numericals 25

Lesson No. 25 Title: Resistance temperature detector relay


1. Resistance temperature detector relay 45 2. Problems 10

Lesson No. 26 Title: Remedial Class


1. Remedial Class 50

Lesson No. 27 Title: Digital relay

S.NO Topic Time Alloted(min) 1. Introduction of digital relay,block diagram of digital relay 35 2. Numerical 15

Lesson No. 28 Title: Sampling theorem correlation with reference wave.


1. Sampling theorem correlation with reference wave. 30 2. Numerical 25

Lesson No. 29 Title: Fourier transform of analogue and discrete signals


1. Fourier transform of analogue and discrete signals 35 2. Numericals 15

Lesson No. 30 Title: Least error square techniques, digital filtering

S.NO Topic Time Alloted(min) 1. Least error square techniques, digital filtering 40 2. Numerical 15

Lesson No. 31 Title: Low pass high pass


1. Low pass high pass 35 2. Finite impulse response 20

Lesson No. 32 Title: Finite impulse response


1. Finite impulse response 40 2. Numericals 15

Lesson No. 33 Title: Finite impulse response filters


1. Finite impulse response filters 40 2. Numericals 15

\


I Mid Term Question Paper Subject: ADVANCED POWER SYSTEM


Duration: 1Hr Session: 2013-14, Even Semester

Year : I

Sem : II


M. Tech I Year, II Sem, Branch: Power System

I Mid Term Examination (2013-14)


Date: 11/04/2014

Duration: 1 Hr Maximum Marks: 12.5

Instructions to Candidates: Attempt all questions.

Q.1 Give a classification of various type of amplitude and phase comparator. Q.2 Describe a static differential block diagram and explain function of each block. Describe duality of amplitude comparator and phase comparator. Q.3 Describe any one type of comparator and explain the construction and working.


II Mid Term Question Paper Subject: ADVANCED POWER SYSTEM


Duration: 1Hr Session: 2013-14, Even Semester

Year : I

Sem : II


M. Tech I Year, II Sem, Branch: Power System

II Mid Term Examination (2013-14)


Date: 17/05/2014

Duration: 1Hr Maximum Marks: 12.5 Instructions to Candidates: Attempt all questions. Q.1 Explain basic architecture of digital relaying by a figure and working block diagram structure and describing functions. Q.2 Describe the ac saturation phenomena in current transformer explaining the flux distribution/ variation necessary for the purpose. Q.3 Describe the magnetization characteristics of CT core protective and measurement CT core.


Performance of Students in Mid Term Exams Subject: ADVANCED POWER SYSTEM

PROTECTION Subject Code: 2MPS2 Maximum Marks: 25


Year : I

Sem : II

S. No. Roll No. Student Name Average Marks obtained

in MT I & MT II

1 13EUCPS600 AKHILESH KUMAR 16 2 13EUCPS601 AMIT SINGHAL 14 3 13EUCPS602 AMRITA JAIN 19 4 13EUCPS603 ASHU VERMA 20 5 13EUCPS604 BHASKAR SHARMA 17 6 13EUCPS605 BHEEMRAJ SUMAN 15* 7 13EUCPS606 FAIZAL KHAN 20 8 13EUCPS607 HARSHITA BAJPAI 22 9 13EUCPS608 HEM MANOHAR 14

10 13EUCPS609 KRIPAL SINGH 15* 11 13EUCPS610 NEHA KUMARI 23 12 13EUCPS611 POOJA NAGAR 23 13 13EUCPS612 POOJA SHARMA 19 14 13EUCPS613 RAJARAM CHANDRA MEENA 20 15 13EUCPS614 RANJEET KUMAR 20 16 13EUCPS615 KM SHIVANGI CHAUHAN 23 17 13EUCPS616 SHOBHIT JAIN 20 18 13EUCPS617 VIVEK NATH 15

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Rajasthan Technical University, Kota · 2015-11-26 · Rajasthan Technical University, Kota COURSE - FILE Name : Dr ... block diagram of digital relay, sampling theorem, correlation