COURSE OBJECTIVES - · PDF fileName of the Course: SwitchGear&Protection Course Objectives: 1. To introduce students to power system protection and switchgear. 2. To teach students

Gokaraju Rangaraju Institute of Engineering and Technology (Autonomous)

Bachupally, Kukatpally, Hyderabad – 500 090, A.P., India. (040) 6686 4440

COURSE OBJECTIVES

Academic Year : 2013-2014 Semester : I / II Name of the Program: B.Tech EEE Year: IV Section: A Course/Subject: Switch Gear and Protection Course Code: EE 05538 Name of the Faculty: V. Vijay Rama Raju Dept.: EEE Designation: ASSOCIATE PROFESSOR On completion of this Subject/Course the student shall be able to: S.No Objectives 1

To introduce students to power system protection and switchgear.

2 To teach students theory and applications of the main components used in power system protection for electric machines, transformers, bus bars, overhead and underground feeders.

3 To teach students the theory, construction, applications of main types Circuit breakers, Relays for protection of generators, transformers and protection of feeders from overvoltages and other hazards. It emphasis on neutral grounding for overall protection

4 To develop an ability and skill to design the feasible protection systems needed for each main part of a power system in students.

Signature of HOD Signature of faculty Date: Date: Note: Please refer to Bloom‟s Taxonomy, to know the illustrative verbs that can be used to state the objectives.



COURSE OUTCOMES

Academic Year : 2013-2014 Semester : I / II Name of the Program: B.Tech EEE Year: IV Section: A Course/Subject: Switch Gear and Protection Course Code: EE 05538 Name of the Faculty: V. Vijay Rama Raju Dept.: EEE Designation: ASSOCIATE PROFESSOR The expected outcomes of the Course/Subject are: S.No Outcomes 1.Student g a i n s knowledge on different Protective Equipments or Power Systems

2. Know about various protective systems- how it works and where it works?

3. Different applications o f the relays, circuit breakers, gr ou ndi ng for different elements of power system is also discussed in the subject.

4. Ability to discuss recovery and Restriking. 5. Ability to express Oil circuit Breaker, Air Blast circuit Breakers, SF6 Circuit Breaker.

6.Abiity to identify DMT,IDMT type relays 7. Ability to identify Rotor, Stator Faults, inter turn faults and their protection.

Signature of HOD Signature of faculty Date: Date: Note: Please refer to Bloom‟s Taxonomy, to know the illustrative verbs that can be used to state the outcomes.

Gokaraju Rangaraju Institute of Engineering and Technology

(An Autonomous Institute under JNTUH)

Department/Program-EEE

Vision of the Institute To be among the best of the institutions for engineers and technologists with attitudes, skills and knowledge and to become an epicenter of creative solutions. Mission of the Institute To achieve and impart quality education with an emphasis on practical skills and social relevance. Vision of the Department To impart technical knowledge and skills required to succeed in life, career and help society to achieve self sufficiency. Mission of the Department

To become an internationally leading department for higher learning. To build upon the culture and values of universal science and contemporary education. To be a center of research and education generating knowledge and technologies which lay

groundwork in shaping the future in the fields of electrical and electronics engineering.

To develop partnership with industrial, R&D and government agencies and actively participate in conferences, technical and community activities.

Program Educational Objectives: This programme is meant to prepare our students to professionally thrive and to lead. During

their progression:

PEO 1: Graduates will have a successful technical or professional careers, including supportive and leadership roles on multidisciplinary teams.

PEO 2: Graduates will be able to acquire, use and develop skills as required for effective professional practices.

PEO 3: Graduates will be able to attain holistic education that is an essential prerequisite for being a responsible member of society.

PEO 4: Graduates will be engaged in life-long learning, to remain abreast in their profession and be leaders in our technologically vibrant society.

Programme Learning Outcomes:

Based on the department‟s educational objectives, students will achieve the following specific Program outcomes.

a. Ability to apply knowledge of mathematics, science, and engineering.

b. Ability to design and conduct experiments, as well as to analyze and interpret data.

c. Ability to design a system, component, or process to meet desired needs within realistic constraints such as economic, environmental, social, political, ethical, health and safety, manufacturability, and sustainability.

d. Ability to function on multi-disciplinary teams.

e. Ability to identify, formulate, and solve engineering problems.

f. Understanding of professional and ethical responsibility.

g. Ability to communicate effectively.

h. Broad education necessary to understand the impact of engineering solutions in a global, economic, environmental, and societal context.

i. Recognition of the need for, and an ability to engage in life-long learning.

j. Knowledge of contemporary issues.

k. Ability to utilize experimental, statistical and computational methods and tools necessary for engineering practice.

l. Graduates will demonstrate an ability to design electrical and electronic circuits, power electronics, power systems, electrical machines analyze and interpret data and also an ability to design digital and analog systems and programming them.

Name of the Course: SwitchGear&Protection

Course Objectives:

1. To introduce students to power system protection and switchgear.

2. To teach students theory and applications of the main components used in power system protection for electric machines, transformers, bus bars, overhead and underground feeders.

3. To teach students the theory, construction, applications of main types Circuit breakers, Relays for protection of generators, transformers and protection of feeders from overvoltages and other hazards. It emphasis on neutral grounding for overall protection

4. To develop an ability and skill to design the feasible protection systems needed for each main part of a power system in students.

Course Outcomes: 1.Student g a i n s knowledge on different Protective Equipments or Power Systems



4. Ability to discuss Recovery and Restriking. 5. Ability to express Oil circuit Breaker, Air Blast circuit Breakers, SF6 Circuit Breaker.

6.Abiity to identify DMT,IDMT type relays 7. Ability to identify Rotor, Stator Faults, interturn faults and their protection.

Assessment methods:

1. Regular attendance to classes. 2. Seminars. 3. Written tests clearly linked to learning objectives

Classroom assessment techniques like tutorial sheets and assignments.

1. Program Educational Objectives (PEOs) – Vision/Mission Matrix

Vision/Mission PEOs

Vision of the Institute Mission of the Institute Mission of the Program

1 X X 2 X X X 3 X X X 4 X X

2. Program Educational Objectives(PEOs)-Program Outcomes(POs) Relationship Matrix

P-Outcomes PEOs

a b c d e f g h i j K l

1 X X X X X X X X X X 2 X X X X X X X X X X 3 X X X X X X X X 4 X X X X

3. Course Objectives-Course Outcomes Relationship Matrix

Course-Outcomes Course-Objectives

1 2 3 4 5 6 7

1 X X

2 X X X X X 3 X X X 4 X X X X

4. Course Objectives-Program Outcomes (POs) Relationship Matrix P-Outcomes C-Objectives

a b c d e f g h I j k l

1 X X 2 X X X X X X 3 X X X X X X X X 4 X X X X X X X X

5. Course Outcomes-Program Outcomes (POs) Relationship Matrix

P-Outcomes C-Outcomes

a b c d e f g h i j k l

1 X X 2 X X X X 3 X X X X X X X X X X 4 X X X X X X X 5 X X X 6 X X 7 X X X X X

6. Courses (with title & code)-Program Outcomes (POs) Relationship Matrix

P-Outcomes Courses


Electrical Machines-I

X X X X X X X X X X X

7. Program Educational Objectives (PEOs)-Course Outcomes Relationship Matrix

P-Objectives (PEOs) Course-Outcomes

1 2 3 4

1 X X 2 X 3 X X X 4 X X X 5 X 6 X 7 X

8. Assignments & Assessments-Program Outcomes (POs) Relationship Matrix

P-Outcomes Assessments

a b c d e f g h I J k l

1 X X X X X X X X 2 X X X X X X 3 X X X X 4 X X X X X X X X

9. Assignments & Assessments-Program Educational Objectives (PEOs) Relationship Matrix

PEOs Assessments

1 2 3 4

1 X X X 2 X X X X 3 X X 4 X X X X

10. Constituencies -Program Outcomes (POs) Relationship Matrix

P-Outcomes Constituencies

a B c d e f g h i j k l

Industry X X X X X X X Government Employers

X X X X

Management X X Students X Parents X

6



GUIDELINES TO STUDY THE COURSE / SUBJECT Academic Year : 2013-2014 Semester : I / II Name of the Program: B.Tech EEE Year: IV Section: A Course/Subject: Switch Gear and Protection Course Code: EE 05538 Name of the Faculty: V. Vijay Rama Raju Dept.: EEE Designation: ASSOCIATE PROFESSOR Guidelines to study the Course/ Subject: Switch Gear and Protection Course Design and Delivery System (CDD):

The Course syllabus is written into number of learning objectives and outcomes. These learning objectives and outcomes will be achieved through lectures, assessments,

assignments, experiments in the laboratory, projects, seminars, presentations, etc. Every student will be given an assessment plan, criteria for assessment, scheme of evaluation and

grading method. The Learning Process will be carried out through assessments of Knowledge, Skills and Attitude

by various methods and the students will be given guidance to refer to the text books, reference books, journals, etc.

The faculty be able to –

Understand the principles of Learning

Understand the psychology of students

Develop instructional objectives for a given topic Prepare course, unit and lesson plans

Understand different methods of teaching and learning

Use appropriate teaching and learning aids

Plan and deliver lectures effectively Provide feedback to students using various methods of Assessments and tools of Evaluation

Act as a guide, advisor, counselor, facilitator, motivator and not just as a teacher alone

Signature of HOD Signature of faculty Date: Date:



COURSE SCHEDULE

Academic Year : 2013-2014 Semester : I / II Name of the Program: B.Tech EEE Year: IV Section: A Course/Subject: Switch Gear and Protection Course Code: EE 05538 Name of the Faculty: V. Vijay Rama Raju Dept.: EEE Designation: ASSOCIATE PROFESSOR

The Schedule for the whole Course / Subject is:

S. No.

Description Duration (Date) Total No.

Of Periods From To

1.

Circuit Breakers-1

2/7/13

9/7/13

3

2.

Circuit Breakers-2

10/7/13

16/7/13

2

3.

Electromagnetic and Static Relays

17/7/13

20/8/13

10

4.

Generator Protection

21/8/13

3/9/13

3

5.

Transformer Protection

4/9/13

11/9/13

3

6.

Feeder and Bus-Bar Protection

17/9/13

24/9/13

3

7. Neutral Grounding

25/9/13 8/10/13 3

8. Protection against Over Voltages 9/10/13 23/10/13 5 Total No. of Instructional periods available for the course: 32 Periods



ILLUSTRATIVE VERBS FOR STATING INSTRUCTIONAL OBJECTIVES

These verbs can also be used while framing questions for Continuous Assessment Examinations as well as for End – Semester (final)Examinations

ILLUSTRATIVE VERBS FOR STATING GENERAL OBJECTIVES/OUTCOMES

ILLUSTRATIVE VERBS FOR STATING SPECIFIC OBJECTIVES/OUTCOMES:

A. COGNITIVE DOMAIN (KNOWLEDGE)

1 2 3 4 5 6

Knowledge Comprehension Understanding

Application of knowledge & comprehension

Analysis Of whole w .r.t. its

constituents

Synthesis

Evaluation

Judgment Define Identify Label List March Reproduce Select State

Convert Defend Describe (a Procedure) Distinguish Estimate Explain why/how Extend Generalize Give examples Illustrate Infer Summarize

Change Compute Demonstrate Deduce Manipulate Modify Predict Prepare Relate Show Solve

Breakdown Differentiate Discriminate Distinguish Separate Subdivide

Categorize Combine Compose Compose Create Devise Design Generate Organize Plan Rearrange Reconstruct Reorganize Revise

Appraise Compare Conclude Contrast Criticize Justify Interpret Support

B. AFFECTIVE DOMAIN (ATTITUDE)

C. PSYCHOMOTOR DOMAIN (SKILLS)

Adhere Resolve Assist Select Attend Serve Change Share Develop Help Influence

Bend Dissect Insert Perform Straighten Calibrate Draw Keep Prepare Strengthen Compress Extend Elongate Remove Time Conduct Feed Limit Replace Transfer Connect File Manipulate Report Type Convert Grow Move Precisely Reset Weigh Decrease Increase Paint Set

Know Comprehend

Understand Apply

Analyze Design

Generate Evaluate



SCHEDULE OF INSTRUCTIONS COURSE PLAN

Academic Year : 2013-2014 Semester : I / II Name of the Program: B.Tech EEE Year: IV Section: A Course/Subject: Switch Gear and Protection Course Code: EE 05538 Name of the Faculty: V. Vijay Rama Raju Dept.: EEE Designation: ASSOCIATE PROFESSOR Name of the Course: Switch Gear & Protection

Course Objectives:



3. To teach students the theory, construction, applications of main types Circuit breakers, Relays for protection of generators, transformers and protection of feeders from overvoltages and other hazards. It emphasis on neutral grounding for overall protection.


Course Outcomes:

At the end of the course student will have ability to

1.Student g a i n s knowledge on different Protective Equipments or Power Systems





SUGGESTED BOOKS:

TEXT BOOKS:

T1: Sunil S Rao “Switchgear Protection & Power Systems” , Khanna Publlishers

T2: Badari Ram & D.N Viswakarma “Power System Protection and Switchgear” , TMH publications

REFERENCES BOOKS :

R1: Paithankar and S.R.Bhide, “Fundamentals of Power System Protection”, PHI, 2003.

R2: T S Madhav Rao, “Power System Protection : Static Relays”, Tata McGraw-Hill, 2nd edition

R3: C R Mason, “Art & Science of Protective Relaying”, Wiley Eastern Ltd.

R4: Cl Wadhwa, “Electrical Power Systems”, New Age international (P) Limited, Publishers, 3rd

editon

R5: “Hand Book of Switchgears by BHEL”, TMH Publications.

Unit No.

Lesson

No.

Date

No. of Periods

Topics / Sub-Topics

Objectives & Outcomes

Nos.

References (Text Book, Journal…) Page Nos.: ____to ____

I

1

2/7/13

1

Elementary principles of arc

interruption Circuit Breakers

Recovery, Restriking Voltage

and Recovery voltages

1, 3 & 1,2,3

T1:3.7,4.8 T2:9.2, 9.3 R4:15.2 R6:13.6, 14.3

I

2

3/7/13

1

Restriking Phenomenon,

Average and Max. RRRV,

Numerical Problems on


and RRRV

2, 3 & 1,2, T1:3.10,3.19 T2: 9.3 R4:15.2 R6:14.4, 14.5

I

3

9/7/13

1

Current chopping and

Resistance switching, CB

ratings and Specifications:

Types and Numerical

Problems. – Auto reclosures

2, 3 & 1,2, T1:3.6,3.18,3.19 T2: 9.5,9.6,9.16 R4:15.3,15.9,15.11 R6:7.3,14.2,14.3 14.7

II

1

10/7/13

1

Description and Operation of

Minimum Oil Circuit breakers,


Air Blast Circuit Breakers

2, 3 & 1,2,3 T1:6.2,8.3 T2: 9.7,9.8,9.9,9.10 R4:15.4,15.6 R6:15.3,15.5

II

2

16/7/13

1


Vacuum circuit breakers,


SF6 circuit breakers

2, 3 & 1,2,3 T1:7.5,9.4 T2: 9.11,9.12,9.13,9.14,9.15 R4:15.7,15.8 R6:16.2,16.3

III

1

17/7/13

1

Principle of Operation and

Construction of Attracted

armature relays, Principle of

Operation and Construction of

Balanced Beam relays

2, 3 & 1,2,3 T1:26.9,26.10 T2: 2.1 R2:1.1 R4:14.4 R6:3.2

III

2

23/7/13

1


Construction of induction Disc

relays, Principle of Operation

and Construction of Induction

2, 3 & 1,2,3 T1: 26.10,26.12 T2: 2.1 R2:1.6 R4:14.4 R6:3.2

Cup relays

III

3

24/7/13

1

Relays Classification:

Instantaneous, DMT and IDMT

types, Over current/ Under

voltage relays

2, 3 & 1,2,3 T1: 27.4,27.19 T2: 3.4,3.5 R2:4.2,6.4 R4:14.5 R6:4.4,4.5

III

4

30/7/13

1

Direction relays, Differential

Relays

2, 3 & 1,2,3 T2 : 3.10,3.11 T1 : 27.10,28.1 R2 : 7.2,7.3 R4 : 14.8,14.12 R6 : 4.7,4.9

III

5

31/7/13

1

Percentage Differential Relays. 2, 3 & 1,2,3 T2 : 3.11 T1 : 28.1 R2 : 7.3 R4 : 14.12 R6 : 4.9

III

6

6/8/13

1

Impedance, Reactance relays 2, 3 & 1,2,3 T2 : 4.1,4.2 T1 : 29.6,29.8 R4 : 14.7,14.10 R6 : 3.3

III

7

7/8/13

1

Mho and Off-Set Mho relays 2, 3 & 1,2,3 T2 : 4.3 T1 : 29.9 R4 : 14.7,14.10 R6 : 3.3

III

8

13/8/13

1

Characteristics of Distance

Relays and Comparison.

2, 3 & 1,2,3 T2 : 4.5 to 4.20, T1 : 29.10 R2 : 8.6 R4 : 14.16 R6 : 4.8

III

9

14/8/13

1

Static Relays: Static Relays

verses Electromagnetic Relays.

2, 3 & 1,2,3 T2 : 2.3, 3.12 R2 : 1.4 R6 : 12.1,12.4

III

10

20/8/13

1

Numerical Problems

1, 3 & 1,2,3

IV

1

21/8/13

1

Protection of generators

against Stator faults ,


against Rotor faults

2, 3 & 1,2,3 T2 : 6.1 T1 : 33.2,33.8 R2 : 16.3 R4 : 14.11 R6 : 6.3

IV

2

27/8/13

1


against Abnormal Conditions..

2, 3 & 1,2,3 T2 : 6.1 T1 : 33.12 R2 : 16.3 R4 : 14.11 R6 : 6.3

IV

3

3/9/13

1

Restricted Earth fault and

Inter-turn fault Protection,

Numerical Problems on %

Winding Unprotected.

2, 3 & 1,2,3 T2 : 3.8,3.9 T1 : 33.2,33.4,33.7 R2 : 11.13,16.3

V

1

4/9/13

1

Protection of transformers:

Percentage Differential

2, 3 & 1,2,3 T2 : 6.2 T1 :32.5 R2 : 7.8

Protection R6 : 6.2

V

2

10/9/13

1

Numerical Problem on Design

of CT s Ratio

2, 3 & 1,2,3 T2 : 6.2 T1 : 32.2 R2 : 7.7 R6 : 6.2

V

3

11/9/13

1

Buchholtz relay Protection. 2, 3 & 1,2,3 T2 : 6.2 T1 : 32.4.3

VI

1

17/9/12

1

Protection of Lines: Over

Current protection using

Impedance relays, Protection

of Lines: Carrier Current

protection using Impedance

relays.

2, 3 & 1,2,3 T2 : 5.2 T1 : 30.6,30.19 R2 : 9.4 R4 : 14.14 R6 : 5.2

VI

2

18/9/13

1

Protection of Lines: Three-

zone distance relay protection

using Impedance relays,

Translay Relay

2, 3 & 1,2,3 T2 : 6.3,6.4 T1 : 30.9.1, 30.18 R2 : 9.2,11.15,16.4 R4 : 14.10, 14.13 R6 : 6.5, 12.3

VI

3

24/9/13

1

Protection of Bus bars –

Differential protection,

Numerical Problems

2, 3 & 1,2,3 T2 : 6.4 T1 : 30.18 R2 : 16.4 R4 : 14.13 R6 : 12.3

VII

1

25/9/13

1

Grounded and Ungrounded

Neutral Systems, Effects of

Ungrounded Neutral on system

performance

2, 3 & 1,2,3 T1 : 18.15, 18.16, 18.17,18.22 R4 : 11.1, 11.2, 11.5

VII

2

1/10/13

1

Methods of Neutral

Grounding: Solid, Resistance,

Reactance

2, 3 & 1,2,3 T1 : 18.23 R4 : 11.4

VII

3

8/10/13

1

Arcing Grounds and Grounding

Practices, Numerical Problems

2, 3 & 1,2,3 T1 : 18.21, 18.24 R4 : 11.6

VIII

1

9/10/13

1

Generation of Over Voltages in

Power Systems, Protection

against Lightning Over Voltages

2, 3 & 1,2 T2 : 11.1, 11.2,11.3 R4 : 16.2

VIII

2

15/10/13

1

Valve type and Zinc-Oxide

Lighting Arresters

2, 3 & 1,2 T2 : 11.4, 11.6,11.7 R4 : 16.4

VIII

3

16/10/13

1

Insulation and Coordination-

BIL, Impulse Ratio

2, 3 & 1,2 T2 : 11.10, 11.11

VIII

4

22/10/13

1

Standard Impulse Test Wave 2, 3 & 1,2 T2 : 11.11

VIII

5

23/10/13

1

Volt-Time Characteristics and

Insulation Co-ordination,

Numerical Problems

2, 3 & 1,2 T2 : 11.11

Signature of HOD Signature of faculty Date: Date: Note: 1. ENSURE THAT ALL TOPICS SPECIFIED IN THE COURSE ARE MENTIONED. 2. ADDITIONAL TOPICS COVERED, IF ANY, MAY ALSO BE SPECIFIED IN BOLD 3. MENTION THE CORRESPONDING COURSE OBJECTIVE AND OUT COME NUMBERS AGAINST EACH TOPIC.



SYLLABUS Academic Year : 2013-2014 Semester : I Name of the Program: B.Tech, EEE… Year: IV Course/Subject: …SWITCH GEAR AND PROTECTION Name of the Faculty: V.VIJAY RAMA RAJU……………………………..Dept. EEE Designation : ASSOCIATE PROFESSOR

SWITCHGEAR AND PROTECTION COURSE OBJECTIVE: “Switch Gear &Protection” subject gives general awareness of different Protective Equipments for Power Systems such as Relays, Circuit Breakers, and Isolators. It also explains about protective system- how it works and where it works? Different applications of the relays for different elements ofpower system is also discussed in the subject. UNIT – I: Circuit Breakers - 1 Circuit Breakers: Elementary principles of arc interruption, Recovery, Restriking Voltage and Recoveryvoltages.- Restriking Phenomenon, Average and Max. RRRV, Numerical Problems. Current Chopping and Resistance Switching. CB ratings and Specifications : Types and Numerical Problems. – Autoreclosures. UNIT –II: Circuit Breakers - 2 Description and Operation of following types of circuit breakers: Minimum Oil Circuit breakers, Air Blast Circuit Breakers, Vacuum and SF6 circuit breakers. UNIT – III: Electromagnetic and Static Relays Principle of Operation and Construction of Attracted armature, Balanced Beam, induction Disc and Induction Cup relays. Relays Classification: Instantaneous, DMT and IDMT types. Application of relays: Over current/ Under voltage relays, Direction relays, Differential Relays and Percentage Differential Relays. Universal torque equation, Distance relays: Impedance, Reactance and Mho and Off-Set Mho relays, Characteristics of Distance Relays and Comparison. Static Relays: Static Relays verses Electromagnetic Relays. UNIT – IV: Generator Protection Protection of generators against Stator faults, Rotor faults, and Abnormal Conditions. Restricted Earth fault and Inter-turn fault Protection. Numerical Problems on % Winding Unprotected. UNIT –V: Transformer Protection Protection of transformers: Percentage Differential Protection, Numerical Problem on Design of CT s Ratio, Buchholtz relay Protection. UNIT –VI: Feeder and Bus-Bar Protection Protection of Lines: Over Current, Carrier Current and Three-Zone distance relay protection using

Impedance relays. Translay Relay.Protection of Bus bars – Differential protection. UNIT – VII: Neutral Grounding Grounded and Ungrounded Neutral Systems.- Effects of Ungrounded Neutral on system performance.Methods of Neutral Grounding: Solid, Resistance, Reactance –Arcing Grounds and Grounding Practices. UNIT – VIII: Protection against over voltages Generation of Over Voltages in Power Systems.-Protection Against Lightning Over Voltages – Valve type and Zinc-Oxide Lighting Arresters. Insulation and Coordination -BIL, Impulse Ratio,Standard Impulse Test Wave, Volt-Time Characteristics and Insulation Co-ordination. SUGGESTED BOOKS : TEXT BOOKS : T1: Sunil S Rao “Switchgear Protection & Power Systems” , Khanna Publlishers T2: Badari Ram & D.N Viswakarma “Power System Protection and Switchgear” , TMH publications REFERENCES BOOKS : R1: Paithankar and S.R.Bhide, “Fundamentals of Power System Protection”, PHI, 2003. R2: T S Madhav Rao, “Power System Protection : Static Relays”, Tata McGraw-Hill, 2nd edition R3: C R Mason, “Art & Science of Protective Relaying”, Wiley Eastern Ltd. R4: Cl Wadhwa, “Electrical Power Systems”, New Age international (P) Limited, Publishers, 3rdediton R5: “Hand Book of Switchgears by BHEL”, TMH Publications.

Jul//2013-14

DEPARTMENT OF ELECTRICAL AND ELECTRONICS ENGINEERING IV B.Tech ( EEE ) A I Semester

Issue 1

DAY/ HOUR 11:00 to 12:30 12:30 to 01:30 1:30 to 2:00 2:00 to 3:30 3:30-5:00

ROOM NO

MONDAY

BR

EA

K

SGP Theory 2309

TUESDAY SGP Lab Instructions

WEDNESDAY Lab

THURSDAY

V.VIJAYA RAMA RAJU

FRIDAY

SATURDAY

IV B.Tech ( EEE ) B I Semester

Issue 1

DAY/ HOUR 11:00 to 12:30 12:30 to

2:00

2:00 to

2:30 2:30 to 3:30 3:30 to 5:00

ROOM NO

MONDAY

BR

EA

K

Theory 2309

TUESDAY Lab Instructions

WEDNESDAY Lab

THURSDAY SGP

V.V.S.MADHURI

FRIDAY

SATURDAY SGP



SCHEDULE OF INSTRUCTIONS UNIT PLAN

Academic Year : 2013-2014 Semester : I / II UNIT NO.: I Name of the Program: B.Tech EEE Year: IV Section: A Course/Subject: Switch Gear and Protection Course Code: EE 05538 Name of the Faculty: V. Vijay Rama Raju Dept.: EEE Designation: ASST.PROFESSOR/ ASSOCIATE PROFESSOR/ PROFESSOR/HOD.

Lesson

No.

Date

No. of Periods

Topics / Sub - Topics


Nos.


I

2/7/13

1



Recovery, Restriking Voltage and

Recovery voltages

1, 3 & 1,2,3 T1:3.7,4.8 T2:9.2, 9.3 R4:15.2 R6:13.6, 14.3

I

3/7/13

1

Restriking Phenomenon, Average

and Max. RRRV,

Numerical Problems on Recovery,

Restriking Voltage and RRRV

2, 3 & 1,2, T1:3.10,3.19 T2: 9.3 R4:15.2 R6:14.4, 14.5

I

9/7/13

1

Current chopping and Resistance

switching, CB ratings and

Specifications: Types and Numerical


2, 3 & 1,2, T1:3.6,3.18,3.19 T2: 9.5,9.6,9.16 R4:15.3,15.9,15.11 R6:7.3,14.2,14.3 14.7





Academic Year : 2013-2014 Semester : I / II UNIT NO.: II Name of the Program: B.Tech EEE Year: IV Section: A Course/Subject: Switch Gear and Protection Course Code: EE 05538 Name of the Faculty: V. Vijay Rama Raju Dept.: EEE Designation: ASST.PROFESSOR/ ASSOCIATE PROFESSOR/ PROFESSOR/HOD.

Lesson

No.

Date

No. of Periods



Nos.


II

10/7/13

1



Description and Operation of Air

Blast Circuit Breakers

2, 3 & 1,2,3 T1:6.2,8.3 T2: 9.7,9.8,9.9,9.10 R4:15.4,15.6 R6:15.3,15.5

II

16/7/13

1



Description and Operation of SF6

circuit breakers

2, 3 & 1,2,3 T1:7.5,9.4 T2: 9.11,9.12,9.13,9.14,9.15 R4:15.7,15.8 R6:16.2,16.3





Academic Year : 2013-2014 Semester : I / II UNIT NO.: III Name of the Program: B.Tech EEE Year: IV Section: A Course/Subject: Switch Gear and Protection Course Code: EE 05538 Name of the Faculty: V. Vijay Rama Raju Dept.: EEE Designation: ASST.PROFESSOR/ ASSOCIATE PROFESSOR/ PROFESSOR/HOD.

Lesson

No.

Date

No. of Periods



Nos.


III

17/7/13

1


Construction of Attracted armature

relays, Principle of Operation and

Construction of Balanced Beam

relays

2, 3 & 1,2,3 T1:26.9,26.10 T2: 2.1 R2:1.1 R4:14.4 R6:3.2

III

23/7/13

1




Construction of Induction Cup

relays

2, 3 & 1,2,3 T1: 26.10,26.12 T2: 2.1 R2:1.6 R4:14.4 R6:3.2

III

24/7/13

1

Relays Classification: Instantaneous,

DMT and IDMT types, Over current/

Under voltage relays

2, 3 & 1,2,3 T1: 27.4,27.19 T2: 3.4,3.5 R2:4.2,6.4 R4:14.5 R6:4.4,4.5

III

30/7/13

1

Direction relays, Differential Relays 2, 3 & 1,2,3 T2 : 3.10,3.11 T1 : 27.10,28.1 R2 : 7.2,7.3 R4 : 14.8,14.12 R6 : 4.7,4.9

III

31/7/13

1


III

6/8/13

1


III

7/8/13

1


III

13/8/13

1

Characteristics of Distance Relays

and Comparison.

2, 3 & 1,2,3 T2 : 4.5 to 4.20, T1 : 29.10 R2 : 8.6 R4 : 14.16 R6 : 4.8

III

14/8/13

1

Static Relays: Static Relays verses

Electromagnetic Relays.

2, 3 & 1,2,3 T2 : 2.3, 3.12 R2 : 1.4 R6 : 12.1,12.4

III

20/8/13

1

Numerical Problems

1, 3& 1,2,3





Academic Year : 2013-2014 Semester : I / II UNIT NO.: IV Name of the Program: B.Tech EEE Year: IV Section: A Course/Subject: Switch Gear and Protection Course Code: EE 05538 Name of the Faculty: V. Vijay Rama Raju Dept.: EEE Designation: ASST.PROFESSOR/ ASSOCIATE PROFESSOR/ PROFESSOR/HOD.

Lesson

No.

Date

No. of Periods



Nos.


IV

21/8/13

1

Protection of generators against

Stator faults , Protection of

generators against Rotor faults

2, 3 & 1,2,3 T2 : 6.1 T1 : 33.2,33.8 R2 : 16.3 R4 : 14.11 R6 : 6.3

IV

27/8/13

1


Abnormal Conditions..

2, 3 & 1,2,3 T2 : 6.1 T1 : 33.12 R2 : 16.3 R4 : 14.11 R6 : 6.3

IV

3/9/13

1

Restricted Earth fault and Inter-turn

fault Protection, Numerical

Problems on % Winding

Unprotected.

2, 3 & 1,2,3 T2 : 3.8,3.9 T1 : 33.2,33.4,33.7 R2 : 11.13,16.3





Academic Year : 2013-2014 Semester : I / II UNIT NO.: V Name of the Program: B.Tech EEE Year: IV Section: A Course/Subject: Switch Gear and Protection Course Code: EE 05538 Name of the Faculty: V. Vijay Rama Raju Dept.: EEE Designation: ASST.PROFESSOR/ ASSOCIATE PROFESSOR/ PROFESSOR/HOD.

Lesson

No.

Date

No. of Periods



Nos.


V

4/9/13

1


Percentage Differential Protection

2, 3 & 1,2,3 T2 : 6.2 T1 :32.5 R2 : 7.8 R6 : 6.2

V

10/9/13

1

Numerical Problem on Design of CT

s Ratio

2, 3 & 1,2,3 T2 : 6.2 T1 : 32.2 R2 : 7.7 R6 : 6.2

V

11/9/13

1






Academic Year : 2013-2014 Semester : I / II UNIT NO.: VI Name of the Program: B.Tech EEE Year: IV Section: A Course/Subject: Switch Gear and Protection Course Code: EE 05538 Name of the Faculty: V. Vijay Rama Raju Dept.: EEE Designation: ASST.PROFESSOR/ ASSOCIATE PROFESSOR/ PROFESSOR/HOD.

Lesson

No.

Date

No. of Periods



Nos.


VI

17/9/13

1

Protection of Lines: Over Current

protection using Impedance relays,

Protection of Lines: Carrier Current

protection using Impedance relays.

2, 3 & 1,2,3 T2 : 5.2 T1 : 30.6,30.19 R2 : 9.4 R4 : 14.14 R6 : 5.2

VI

18/9/13

1

Protection of Lines: Three-zone

distance relay protection using

Impedance relays, Translay Relay

2, 3 & 1,2,3 T2 : 6.3,6.4 T1 : 30.9.1, 30.18 R2 : 9.2,11.15,16.4 R4 : 14.10, 14.13 R6 : 6.5, 12.3

VI

24/9/13

1

Protection of Bus bars – Differential

protection, Numerical Problems

2, 3 & 1,2,3 T2 : 6.4 T1 : 30.18 R2 : 16.4 R4 : 14.13 R6 : 12.3





Academic Year : 2013-2014 Semester : I / II UNIT NO.: VII Name of the Program: B.Tech EEE Year: IV Section: A Course/Subject: Switch Gear and Protection Course Code: EE 05538 Name of the Faculty: V. Vijay Rama Raju Dept.: EEE Designation: ASST.PROFESSOR/ ASSOCIATE PROFESSOR/ PROFESSOR/HOD.

Lesson

No.

Date

No. of Periods



Nos.


VII

25/9/13

1

Grounded and Ungrounded Neutral

Systems, Effects of Ungrounded

Neutral on system performance

2, 3 & 1,2,3 T1 : 18.15, 18.16, 18.17,18.22 R4 : 11.1, 11.2, 11.5

VII

1/10/13

1

Methods of Neutral Grounding:

Solid, Resistance, Reactance

2, 3 & 1,2,3 T1 : 18.23 R4 : 11.4

VII

8/10/13

1



2, 3 & 1,2,3 T1 : 18.21, 18.24 R4 : 11.6





Academic Year : 2013-2014 Semester : I / II UNIT NO.: VIII Name of the Program: B.Tech EEE Year: IV Section: A Course/Subject: Switch Gear and Protection Course Code: EE 05538 Name of the Faculty: V. Vijay Rama Raju Dept.: EEE Designation: ASST.PROFESSOR/ ASSOCIATE PROFESSOR/ PROFESSOR/HOD.

Lesson

No.

Date

No. of Periods



Nos.


VIII

9/10/13

1


Power Systems, Protection against

Lightning Over Voltages

2, 3 & 1,2 T2 : 11.1, 11.2,11.3 R4 : 16.2

VIII

15/10/13

1

Valve type and Zinc-Oxide Lighting

Arresters

2, 3 & 1,2 T2 : 11.4, 11.6,11.7 R4 : 16.4

VIII

16/10/13

1

Insulation and Coordination-BIL,

Impulse Ratio

2, 3 & 1,2 T2 : 11.10, 11.11

VIII

22/10/13

1


VIII

23/10/13

1



Numerical Problems

2, 3 & 1,2 T2 : 11.11




LESSON PLAN Academic Year : 2013-2014 Date: 2/7/2013 to…9/7/2013…… Semester : I / II Name of the Program: B.Tech EEE Year: IV Section: A Course/Subject: Switch Gear and Protection Course Code: EE05538 Name of the Faculty: V. V ijay Rama Raju Dept.: EEE Designation: ASSOCIATE PROFESSOR Lesson No: I Duration of Lesson: 6hr Lesson Title: Circuit Breakers-1 INSTRUCTIONAL/LESSON OBJECTIVES: On completion of this lesson the student shall be able to: 1. Elementary principles of arc interruption Circuit Breakers, Recovery, Restriking Voltage and Recovery voltages 2. Restriking Phenomenon, Average and Max. RRRV, Restriking Voltage and RRRV 3. Current chopping and Resistance switching, CB ratings and Specifications: Types and Numerical Problems. – Auto reclosures TEACHING AIDS : Power Point Presentation, White board, White board marker. TEACHING POINTS :

In detail about arc interruption Circuit Breakers Restriking Phenomenon, Restriking Voltage and Recovery voltages Average and Max. RRRV, Average and Max. RRRV Current chopping and Resistance switching

Assignment / Questions:

Signature of faculty Note: Mention for each question the relevant Objectives and Outcomes Nos.



LESSON PLAN Academic Year : 2013-2014 Date: 10/7 to 16/7/2013 Semester : I / II Name of the Program: B.Tech EEE Year: IV Section: A Course/Subject: Switch Gear and Protection Course Code: EE05538 Name of the Faculty: V.V ijaya Rama Raju Dept.: EEE Designation: ASSOCIATE PROFESSOR Lesson No: II Duration of Lesson: 4hr Lesson Title: Circuit Breakers-2 INSTRUCTIONAL/LESSON OBJECTIVES: On completion of this lesson the student shall be able to:

1. Description and Operation of Minimum Oil Circuit breakers. 2. Description and Operation of Air Blast Circuit Breakers 3. Description and Operation of Vacuum circuit breakers, 4. Description and Operation of SF6 circuit breakers

TEACHING AIDS : Power Point Presentation, White board, White board marker. TEACHING POINTS :

In detail about different types of Circuit Breakers and their description and operation





LESSON PLAN Academic Year : 2013-2014 Date: 17/7/2013 to 7/8/2013… Semester : I / II Name of the Program: B.Tech EEE Year: IV Section: A Course/Subject: Switch Gear and Protection Course Code: EE05538 Name of the Faculty: V.V ijaya Rama Raju Dept.: EEE Designation: ASSOCIATE PROFESSOR Lesson No: III Duration of Lesson: 8hr Lesson Title: Electromagnetic and Static Relays INSTRUCTIONAL/LESSON OBJECTIVES: On completion of this lesson the student shall be able to:

1. Principle of Operation and Construction of Attracted armature relays, Principle of Operation and Construction of Balanced Beam relays

2. Principle of Operation and Construction of induction Disc relays, Principle of Operation and Construction of Induction Cup relays

3. Relays Classification: Instantaneous, DMT and IDMT types, Over current/ Under voltage relays 4. Direction relays, Differential Relays, Percentage Differential Relays, Impedance, Reactance relays, Mho

and Off-Set Mho relays, Characteristics of Distance Relays and Comparison, Electromagnetic Relays. TEACHING AIDS : Power Point Presentation, White board, White board marker. TEACHING POINTS :

In detail about Relays and its operation and their classification.

Different types of Relays and their applications.





LESSON PLAN Academic Year : 2013-2014 Date: 13/8/13 to 3/9/13… Semester : I / II Name of the Program: B.Tech EEE Year: IV Section: A Course/Subject: Switch Gear and Protection Course Code: EE05538 Name of the Faculty: V.V ijay Rama Raju Dept.: EEE Designation: ASSOCIATE PROFESSOR Lesson No: IV Duration of Lesson: 6hr Lesson Title: Generator Protection INSTRUCTIONAL/LESSON OBJECTIVES: On completion of this lesson the student shall be able to:

1. Protection of generators against Stator faults , Protection of generators against Rotor faults 2. Protection of generators against Abnormal Conditions. 3. Restricted Earth fault and Inter-turn fault Protection, Numerical Problems on % Winding

Unprotected. TEACHING AIDS : Power Point Presentation, White board, White board marker. TEACHING POINTS :

Protection of Generators against faults ( i.e stator faults, Rotor faults) Restricted Earth Fault and Inter- turn fault protection





LESSON PLAN Academic Year : 2013-2014 Date: 4/9/13 to 11/9/13 Semester : I / II Name of the Program: B.Tech EEE Year: IV Section: A Course/Subject: Switch Gear and Protection Course Code: EE05538 Name of the Faculty: V.V ijay Rama Raju Dept.: EEE Designation: ASSOCIATE PROFESSOR Lesson No: V Duration of Lesson: 4hr Lesson Title: Transformer Protection INSTRUCTIONAL/LESSON OBJECTIVES: On completion of this lesson the student shall be able to:

1. Protection of transformers: Percentage Differential Protection 2. Numerical Problem on Design of CT s Ratio 3. Buchholtz relay Protection


In detail about transformer faults and how to overcome these faults. Protection system for Transformers and the devices used for protection.





LESSON PLAN Academic Year : 2013-2014 Date: 17/9/13 to 24/9/13 Semester : I / II Name of the Program: B.Tech EEE Year: IV Section: A Course/Subject: Switch Gear and Protection Course Code: EE05538 Name of the Faculty: V.V ijay Rama Raju Dept.: EEE Designation: ASSOCIATE PROFESSOR Lesson No: VI Duration of Lesson: 6hr Lesson Title: Feeder and Bus-Bar Protection INSTRUCTIONAL/LESSON OBJECTIVES: On completion of this lesson the student shall be able to:

1. Protection of Lines: Over Current protection using Impedance relays, Protection of Lines: Carrier Current protection using Impedance relays

2. Protection of Lines: Three-zone distance relay protection using Impedance relays, Translay Relay

3. Protection of Bus bars – Differential protection, Numerical Problems TEACHING AIDS : Power Point Presentation, White board, White board marker. TEACHING POINTS :

Different methods of Bus bar protection and protection of lines.





LESSON PLAN Academic Year : 2013-2014 Date: 25/9/13 to 8/10/13 Semester : I / II Name of the Program: B.Tech EEE Year: IV Section: A Course/Subject: Switch Gear and Protection Course Code: EE05538 Name of the Faculty: V.V ijay Rama Raju Dept.: EEE Designation: ASSOCIATE PROFESSOR Lesson No: VII Duration of Lesson: 6hr Lesson Title: Neutral Grounding INSTRUCTIONAL/LESSON OBJECTIVES: On completion of this lesson the student shall be able to:

1. Grounded and Ungrounded Neutral Systems, Effects of Ungrounded Neutral on system performance

2. Methods of Neutral Grounding: Solid, Resistance, Reactance 3. Arcing Grounds and Grounding Practices, Numerical Problems


In detail about grounding with examples Ungrounded and grounded system in detail with its advantages and disadvantages. Methods of neutral grounding





LESSON PLAN Academic Year : 2013-2014 Date: 9/10/13 to 23/10/13 Semester : I / II Name of the Program: B.Tech EEE Year: IV Section: A Course/Subject: Switch Gear and Protection Course Code: EE05538 Name of the Faculty: V.V ijay Rama Raju Dept.: EEE Designation: ASSOCIATE PROFESSOR Lesson No: VIII Duration of Lesson: 6hr Lesson Title: Protection against OverVoltages INSTRUCTIONAL/LESSON OBJECTIVES: On completion of this lesson the student shall be able to:

1. Generation of Over Voltages in Power Systems, Protection against Lightning Over Voltages 2. Valve type and Zinc-Oxide Lighting Arresters, Insulation and Coordination-BIL, Impulse Ratio 3. Standard Impulse Test Wave, Volt-Time Characteristics and Insulation Co-ordination,

Numerical Problems TEACHING AIDS : Power Point Presentation, White board, White board marker. TEACHING POINTS :

Generation of Over Voltages in power system and its causes. Lightning and types of lightning strokes and its effects

Protection against lightning over voltages and types of lightning arresters.





ASSIGNMENT SHEET – 1

Academic Year : 2013-2014 Semester : I / II Name of the Program: B.Tech EEE Year: IV Section: A Course/Subject: Switch Gear and Protection Course Code: EE 05538 Name of the Faculty: V. Vijay Rama Raju Dept.: EEE Designation: ASSOCIATE PROFESSOR This Assignment corresponds to Unit No. / Lesson: UNIT –I / CIRCUIT BREAKERS-1 Q1 (a) Explain briefly about various Switch gear components. (b) Give the importance of ratings and specifications of Circuit Breaker. Q2. Explain the terms Recovery voltage, Restriking voltage and RRRV. Derive an expression for the restriking voltage in terms of system capacitance and inductance Q3. Explain Slepian‟s theory of arc interruption and discuss its limitations. How does energy balance theory, explain the process of arc interruption? Please write the Questions / Problems / Exercises which you would like to give to the students and also mention the Objectives/Outcomes to which these Questions / Problems / Exercises are related. Objective Nos.: 1,3…………………………………………………………………………………………. Outcome Nos.: 1,2………………………………………………………………………………………. Signature of HOD Signature of faculty Date: Date:




Academic Year : 2013-2014 Semester : I / II Name of the Program: B.Tech EEE Year: IV Section: A Course/Subject: Switch Gear and Protection Course Code: EE 05538 Name of the Faculty: V. Vijay Rama Raju Dept.: EEE Designation: ASSOCIATE PROFESSOR This Assignment corresponds to Unit No. / Lesson: UNIT –II / CIRCUIT BREAKERS-2 Q1 (a) Explain in detail the role of protective relays in a power systems. (b) Discuss in detail the causes and types and frequency of faults encountered in a power system. Q2. a) What are the necessary auxiliaries of ABCB? Describe compressed air system for supplying compressed air to the air blast circuit breakers? (b) Explain current chopping in VCB. Explain the function of RC surge suppressors used with vacuum switchgear for motor switching Please write the Questions / Problems / Exercises which you would like to give to the students and also mention the Objectives/Outcomes to which these Questions / Problems / Exercises are related. Objective Nos.:2,3……………………………………………………………………………………………. Outcome Nos.:1,2,3………………………………………………………………………………………. Signature of HOD Signature of faculty Date: Date:




Academic Year : 2013-2014 Semester : I / II Name of the Program: B.Tech EEE Year: IV Section: B Course/Subject: Switch Gear and Protection Course Code: EE 05538 Name of the Faculty: V. Vijay Rama Raju Dept.: EEE Designation: ASSOCIATE PROFESSOR This Assignment corresponds to Unit No. / Lesson: UNIT –III / Electromagnetic and Static Relays Q1 .With the help of neat sketch explain the principle of operation of Differential relays. Q2. Distinguish between Over current relays, Directional relays and Differential relays. Q3 Define the following terms and explain their significance in distance protection (a) Reach of a distance relay. (b) Under reach. 6. Explain the „Differential protection‟. State the various applications of differential protection. Please write the Questions / Problems / Exercises which you would like to give to the students and also mention the Objectives/Outcomes to which these Questions / Problems / Exercises are related. Objective Nos.:2,3……………………………………………………………………………………………. Outcome Nos.:1,2,3……………………………………………………………………………………. Signature of HOD Signature of faculty Date: Date:




Academic Year : 2013-2014 Semester : I / II Name of the Program: B.Tech EEE Year: IV Section: A Course/Subject: Switch Gear and Protection Course Code: EE 05538 Name of the Faculty: V. Vijay Rama Raju Dept.: EEE Designation: ASSOCIATE PROFESSOR This Assignment corresponds to Unit No. / Lesson: UNIT –IV / Generator Protection Q1. Explain resistance switching in detail with relevant diagrams and derive the expression of damped oscillation. Q2. (a) What is a direct connected generator? (b) Mention protective schemes for a direct connected generator. Explain any One of these schemes. Q3.What are the types of faults that are likely to occur in an alternator? Explain a protection scheme against any one of these faults. Please write the Questions / Problems / Exercises which you would like to give to the students and also mention the Objectives/Outcomes to which these Questions / Problems / Exercises are related. Objective Nos.:2,3……………………………………………………………………………………………. Outcome Nos.:1,2,3………………………………………………………………………………………. Signature of HOD Signature of faculty Date: Date:




Academic Year : 2013-2014 Semester : I / II Name of the Program: B.Tech EEE Year: IV Section: A Course/Subject: Switch Gear and Protection Course Code: EE 05538 Name of the Faculty: V. Vijay Rama Raju Dept.: EEE Designation: ASSOCIATE PROFESSOR This Assignment corresponds to Unit No. / Lesson: UNIT –V / Transformer Protection Q1. Describe the protection scheme for internal faults in a three phase delta/star connected power transformer. Draw a neat sketch and explain clearly why the CTs are to be connected in a particular fashion only. Q2. What protective devices other than differential protection are used for the protection of a large transformer? Briefly describe them. Please write the Questions / Problems / Exercises which you would like to give to the students and also mention the Objectives/Outcomes to which these Questions / Problems / Exercises are related. Objective Nos.:2,3……………………………………………………………………………………………. Outcome Nos.:1,2,3………………………………………………………………………………………. Signature of HOD Signature of faculty Date: Date:




Academic Year : 2013-2014 Semester : I / II Name of the Program: B.Tech EEE Year: IV Section: A Course/Subject: Switch Gear and Protection Course Code: EE 05538 Name of the Faculty: V. Vijay Rama Raju Dept.: EEE Designation: ASSOCIATE PROFESSOR This Assignment corresponds to Unit No. / Lesson: UNIT –VI / Feeder and Bus-Bar Protection Q1 Describe the principle of bus bar protection based on voltage differential systems. How does it respond to saturation of CTs for external and internal faults? Q2.Describe earth fault protection of sectionalized busbar. Q3. Explain „High Impedance Differential Protection of Bus‟. Please write the Questions / Problems / Exercises which you would like to give to the students and also mention the Objectives/Outcomes to which these Questions / Problems / Exercises are related. Objective Nos.:2,3……………………………………………………………………………………………. Outcome Nos.:1,2,3………………………………………………………………………………………. Signature of HOD Signature of faculty Date: Date:




Academic Year : 2013-2014 Semester : I / II Name of the Program: B.Tech EEE Year: IV Section: A Course/Subject: Switch Gear and Protection Course Code: EE 05538 Name of the Faculty: V. Vijay Rama Raju Dept.: EEE Designation: ASSOCIATE PROFESSOR This Assignment corresponds to Unit No. / Lesson: UNIT –VII / Neutral Grounding Q1. State the difference between equipment earthing and neutral earthing. Q2. What are the merits and demerits of reactance earthing compared to solid earthing? Q3. Explain the phenomenon of “arcing grounds” on overhead transmission lines. How does neutral earthing oppose arcing ground currents? Q4. Explain with diagrams : the phase to earth voltage rise in unfaulted lines during a single phase to earth fault in a 3-phase system without (a) neutral earhting, (b) the situation with neutral earthing. Please write the Questions / Problems / Exercises which you would like to give to the students and also mention the Objectives/Outcomes to which these Questions / Problems / Exercises are related. Objective Nos.:2,3……………………………………………………………………………………………. Outcome Nos.:1,2,3………………………………………………………………………………………. Signature of HOD Signature of faculty Date: Date:




Academic Year : 2013-2014 Semester : I / II Name of the Program: B.Tech EEE Year: IV Section: A Course/Subject: Switch Gear and Protection Course Code: EE 05538 Name of the Faculty: V. Vijay Rama Raju Dept.: EEE Designation: ASSOCIATE PROFESSOR This Assignment corresponds to Unit No. / Lesson: UNIT –VIII / Protection against Over Voltages Q1 .What are the causes of over-voltages arising on a power system? Why is it necessary to protect the lines and other equipment of power system against over voltages? Q2. How can the magnitude of over voltages due to direct and indirect lightning strokes on overhead lines be calculated? Q3. What is a ground wire? What are the requirements to be satisfied by ground wires to provide efficient protection to lines against direct lightening strokes? How do ground wires protect the overhead lines against direct lightening strokes? Q4. Explain the term over voltage factor, protective ratio, protective angle, protective zone and coupling factor? Please write the Questions / Problems / Exercises which you would like to give to the students and also mention the Objectives/Outcomes to which these Questions / Problems / Exercises are related. Objective Nos.:2,3……………………………………………………………………………………………. Outcome Nos.:1,2,3………………………………………………………………………………………. Signature of HOD Signature of faculty Date: Date:



TUTOTIAL SHEET - 1 Academic Year : 2013-2014 Semester : I / II Name of the Program: B.Tech EEE Year: IV Section: A Course/Subject: Switch Gear and Protection Course Code: EE 05538 Name of the Faculty: V. Vijay Rama Raju Dept.: EEE Designation: ASSOCIATE PROFESSOR This Tutorial corresponds to Unit No. / Lesson: UNIT –I / CIRCUIT BREAKERS-1 Q1. A three phase alternator of rated line to line voltage of 13.5KV is connected to a circuit breaker. The inductive reactance up to the circuit-breaker is 4 ohms per phase. The distributed capacitance up to the circuit breaker between phases to neutral is 0.2μF. Determine the following neglecting First Pole to clear factor. Q2. Explain the arc extinction process in alternating circuit breaker. An electric arc of 5cm has a current of 1000amperes and voltage across the arc is 25 volts. Calculate the energy consumed by the arc in one second. Q3. In a 132KV system, the inductance and capacitance per phase up to the location of the circuit breaker is 10H and 0.02μF, respectively. If the circuit breaker interrupts a magnetizing current of 20A (instantaneous), current chopping occurs. Determine the voltage which will appear across the contacts of the circuit breaker. Also calculate the value of the resistance which should be connected across the contacts to eliminate the transient restriking voltage. Please write the Questions / Problems / Exercises which you would like to give to the students and also mention the Objectives/Outcomes to which these Questions / Problems / Exercises are related. Objective Nos.: 1,3………………………………………………………………………………………. Outcome Nos.: 1,2…………………………………………………………………………………………. Signature of HOD Signature of faculty Date: Date:



TUTOTIAL SHEET - 2 Academic Year : 2013-2014 Semester : I / II Name of the Program: B.Tech EEE Year: IV Section: A Course/Subject: Switch Gear and Protection Course Code: EE 05538 Name of the Faculty: V. Vijay Rama Raju Dept.: EEE Designation: ASSOCIATE PROFESSOR This Tutorial corresponds to Unit No. / Lesson: UNIT –II / CIRCUIT BREAKERS-2 Q1. Transformer: 5 MVA, Y /, X=6% The transmission line sections AB and BC are to be protected by Mho distance relays. The system is as shown in the figure8b. If the C.T. ratio is 300/5 and C.T. ratio is 166000/110V and a 3-; short circuit fault of zero impedance occurs at F, find the impedance seen by the relays and determine the setting of the relays for high speed protection of line AB and backup protection for line BC, when the relays are located at end A. Please write the Questions / Problems / Exercises which you would like to give to the students and also mention the Objectives/Outcomes to which these Questions / Problems / Exercises are related. Objective Nos.: 2,3………………………………………………………………………………………. Outcome Nos.: 1,2,3…………………………………………………………………………………………. Signature of HOD Signature of faculty Date: Date:



TUTOTIAL SHEET - 3 Academic Year : 2013-2014 Semester : I / II Name of the Program: B.Tech EEE Year: IV Section: A Course/Subject: Switch Gear and Protection Course Code: EE 05538 Name of the Faculty: V. Vijay Rama Raju Dept.: EEE Designation: ASSOCIATE PROFESSOR This Tutorial corresponds to Unit No. / Lesson: UNIT –III / Electromagnetic and Static Relays Q1. A 50 Hz, 11 kV, three phase alternator with earthed neutral has a reactance of 5 ohm/phase and is connected to the bus-bar through a circuit breaker. The capacitance to earth between the alternator and the circuit breaker is 0.02 microfarad per phase. Assume the resistance of the generator to be negligible. Calculate the following. (a) Maximum value of voltage across the contacts of the circuit breaker (b) Frequency of oscillation (c) The average rate of rise of restriking voltage up to first peak Q2. (a) A 11KV, 100MVA alternator is grounded through a resistance of 5. The C.T.s have a ratio 1000/5. The relay is set to operate when there is an out of balance current of 1A. What percentage of the generator winding will be protected by the percentage differential scheme of protection? (b) A 11KV,100MVA alternator is provided with differential protection. The percentage of winding to be protected against phase to ground fault is 85%. The relay is set to operate when there is 20% of out of balance current. Determine the value of the resistance to be placed in the neutral to ground connection. Please write the Questions / Problems / Exercises which you would like to give to the students and also mention the Objectives/Outcomes to which these Questions / Problems / Exercises are related. Objective Nos.: 2,3………………………………………………………………………………………. Outcome Nos.: 1,2,3…………………………………………………………………………………………. Signature of HOD Signature of faculty Date: Date:



TUTOTIAL SHEET - 4 Academic Year : 2013-2014 Semester : I / II Name of the Program: B.Tech EEE Year: IV Section: A Course/Subject: Switch Gear and Protection Course Code: EE 05538 Name of the Faculty: V. Vijay Rama Raju Dept.: EEE Designation: ASSOCIATE PROFESSOR This Tutorial corresponds to Unit No. / Lesson: UNIT –IV / Generator Protection Q1. An 11kV,100MVA generator is provided with differential scheme of protection. The percentage of the generator winding to be protected against phase to ground fault is 80%. The relay is said to operate when there is 15% out of balance current. Determine the value of resistance to be placed in the neutral to ground connection. Q2. A circuit interrupts the magnetizing current of a 100MVA transformer at 220kV. The magnetizing current is 5% of the full load current. Determine the maximum voltage which may appear across the Gap of the breaker when the magnetizing current is interrupted at 53% of its peak value. The stray capacitance is 2500 microfarad. The inductance is 30H. Please write the Questions / Problems / Exercises which you would like to give to the students and also mention the Objectives/Outcomes to which these Questions / Problems / Exercises are related. Objective Nos.: 2,3………………………………………………………………………………………. Outcome Nos.: 1,2,3…………………………………………………………………………………………. Signature of HOD Signature of faculty Date: Date:



TUTOTIAL SHEET - 5 Academic Year : 2013-2014 Semester : I / II Name of the Program: B.Tech EEE Year: IV Section: A Course/Subject: Switch Gear and Protection Course Code: EE 05538 Name of the Faculty: V. Vijay Rama Raju Dept.: EEE Designation: ASSOCIATE PROFESSOR This Tutorial corresponds to Unit No. / Lesson: UNIT –V / Transformer Protection Q1. A 3-phase transformer rated for 33kV/6.6kV is connected star-delta and the protecting current transformer on the low voltage side have a ratio of 400/5. Determine the ratio of the current transformer on the HV side. Q2. A 3-phase, 66/11kV star-delta connected transformer is protected by Merz- price protection system. The CTs on the LT side have a ratio of 420/5 ampr. Show that the CTs on the HT side will have a ratio of 70: 5"3 . Q3. A 3-phase, 33/6.6 kV transformer is connected in star/delta and the protecting current transformer on the LV side have a ratio of 300/5. What will be the ratio of the current transformer on the HV side? Please write the Questions / Problems / Exercises which you would like to give to the students and also mention the Objectives/Outcomes to which these Questions / Problems / Exercises are related. Objective Nos.: 2,3………………………………………………………………………………………. Outcome Nos.: 1,2,3…………………………………………………………………………………………. Signature of HOD Signature of faculty Date: Date:



TUTOTIAL SHEET - 6 Academic Year : 2013-2014 Semester : I / II Name of the Program: B.Tech EEE Year: IV Section: A Course/Subject: Switch Gear and Protection Course Code: EE 05538 Name of the Faculty: V. Vijay Rama Raju Dept.: EEE Designation: ASSOCIATE PROFESSOR This Tutorial corresponds to Unit No. / Lesson: UNIT –VII / Neutral Grounding Q1. A132KV, 3-phase 50Hz overhead distribution line has phase to ground shunt capacitance of 0.0157μF per km. determine the inductance and KVA rating of arc suppression coil to be connected between neutral and earth. Q2. A 50Hz, 3 phase overhead line has phase ground shunt capacitance of 0.08μF. determine the inductance required in neutral to ground circuit to eliminate an arcing-ground at (a) other end of the line (b) at 70% length of line from the neutral earthing end. Please write the Questions / Problems / Exercises which you would like to give to the students and also mention the Objectives/Outcomes to which these Questions / Problems / Exercises are related. Objective Nos.: 2,3………………………………………………………………………………………. Outcome Nos.: 1,2,3…………………………………………………………………………………………. Signature of HOD Signature of faculty Date: Date:



TUTOTIAL SHEET - 7 Academic Year : 2013-2014 Semester : I / II Name of the Program: B.Tech EEE Year: IV Section: A Course/Subject: Switch Gear and Protection Course Code: EE 05538 Name of the Faculty: V. Vijay Rama Raju Dept.: EEE Designation: ASSOCIATE PROFESSOR This Tutorial corresponds to Unit No. / Lesson: UNIT –VIII / Protection against Over Voltages Q1. A 132KV, 3-phase , 50Hz transmission line 200Km long contains three conductors of effective diameter 2.2cm, arranged in a vertical plane with 4.5m spacing and regularly transposed. Find the inductive and KVA rating of Peterson coil in the system. . Please write the Questions / Problems / Exercises which you would like to give to the students and also mention the Objectives/Outcomes to which these Questions / Problems / Exercises are related. Objective Nos.: 2,3………………………………………………………………………………………. Outcome Nos.: 1,2,3…………………………………………………………………………………………. Signature of HOD Signature of faculty Date: Date:



III B.Tech II Semester Examinations(MODEL PAPER)

SWITCHGEAR AND PROTECTION

Electrical And Electronics Engineering Time: 3 hours Max Marks: 80 Answer any FIVE Questions All Questions carry equal marks

1. What protective device other than the differential protection are used for the protection of a large transformer? Briefly describe them. [16]

2. Discuss the various types of Stator and Rotor faults generally encountered in Generators and mention the protection schemes employed. [16]

3. With a neat sketch discuss the differential scheme for bus zone protection. [16] 4. (a) Explain the ratings of a Circuit breaker. (b) An air-blast circuit breaker designed to interrupt a transformer magnetizing current of

15A(rms) chops the current at an instantaneous value of 12A. The value of L and C in the circuit are 8H and 0.009µF. Find the voltage that appears across the circuit breaker. Assume that the inductive energy is transformed to capacitance. [8+8]

5. (a) Describe the behavior of electric arc in high Vacuum. (b) Discuss the arc phenomena in a circuit breaker? On what factors does the arc

phenomena depend? [8+8] 6. (a) Explain the phenomenon of Arcing grounds and suggest the method to minimize the effect of this phenomenon. (b) Explain the different types of neutral groundings. [10+6] 7. (a) Expain the following terms with respect to switch gear protection i. Pick up level ii. operating time iii. Reach iv. Under Reach v. Over Reach. (b) An earth fault setting relay has a setting of 20%, current rating 5A, it is connected to a C.T of ratio 500:5. Calculate pick up current in primary for which the earth fault relay operates. [8+8] 8. (a) What are the basic requirements of a lightning arrester? Differentiate between

i. A lightning arrester and a lightning conductor ii. Surge diverter and surge absorber.



EVALUATION STRATEGY Academic Year : 2013-2014 Semester : I / II Name of the Program: B.Tech EEE Year: IV Section: A Course/Subject: Switch Gear and Protection Course Code: EE 05538 Name of the Faculty: V. Vijay Rama Raju Dept.: EEE Designation: ASSOCIATE PROFESSOR 1. TARGET: A) Percentage for pass: 40% b) Percentage of class: 85% 2. COURSE PLAN & CONTENT DELIVERY (Please write how you intend to cover the contents: i.e., coverage of Units/Lessons by lectures, design, exercises, solving numerical problems, demonstration of models, model preparation, experiments in the Lab., or by assignments, etc.) 3. METHOD OF EVALUATION 3.1 Continuous Assessment Examinations (CAE-I, CAE-II) 3.2 Assigments 3.3 Quiz 3.4 Semester/End Examination 4. List out any new topic(s) or any innovation you would like to introduce in teaching the subjects in this Semester. ………………………………………………………………………………………………….. Signature of HOD Signature of faculty Date: Date:



COURSE COMPLETION STATUS

Academic Year : 2013-2014 Semester : I / II Name of the Program: B.Tech EEE Year: IV Section: A Course/Subject: Switch Gear and Protection Course Code: EE 05538 Name of the Faculty: V. Vijay Rama Raju Dept.: EEE Designation: ASSOCIATE PROFESSOR Actual Date of Completion & Remarks, if any

Units

Remarks

No. of Objectives Achieved

No. of Outcomes Achieved

Unit 1

Completed on 8/7/13 1,2,3 1,2,3

Unit 2

Completed on 19/7/13 2,3 1,2,3

Unit 3

Completed on 30/7/13 2,3 1,2,3

Unit 4

Completed on 12/8/13 2,3 1,2,3

Unit 5

Completed on 2/9/13 2,3 1,2,3

Unit 6

Completed on 2,3 1,2,3

Unit 7 Unit 8 Signature of HOD Signature of faculty Date: Date: Note: After the completion of each unit mention the number of Objectives & Outcomes Achieved.


Department of Electrical and Electronics Engineering(PREVIOUS RESULT ANALYSIS)

B.Tech EEE IV YEAR-Sec-A I SEM RESULT ANALYSIS OF 2008-2012 BATCH

ACADEMIC YEAR 2011-2012 TOTAL. NO. OF STUDENTS REGISTERED = 126

Subject

Total

No. of

students

appeare

d

No. of

students

passed

No. of

students

failed

< 60%

60% to

70%

> 70%

Pass

percentage

SGP 126 125 01 21 43 61 99.2

B.Tech EEE IIIYEAR Section -A II SEM RESULT ANALYSIS OF 2007-2011 BATCH


Subject

Total No.

of students

appeared

No. of

students

passed

No. of

students

failed

< 60

60 to 70

> 70

Pass

percentage

SGP 66 59 07 21 18 20 89.39

B.Tech EEE IIIYEAR Section-B I SEM RESULT ANALYSIS OF 2007-2011 BATCH


Subject

Total No.

of students

appeared

No. of

students

passed

No. of

students

failed

< 60

60 to 70

> 70

Pass

percentage

SGP 65 63 02 17 13 33 96.92



COURSE OBJECTIVES

Academic Year : 2013-2014 Semester : I / II Name of the Program: B.Tech EEE Year: IV Section: B Course/Subject: Switch Gear and Protection Course Code: EE 05538 Name of the Faculty: V. V.S.Madhuri Dept.: EEE Designation: ASSISTANT PROFESSOR On completion of this Subject/Course the student shall be able to: S.No Objectives 1

To introduce students to power system protection and switchgear.

2 To teach students theory and applications of the main components used in power system protection for electric machines, transformers, bus bars, overhead and underground feeders.

3 To teach students the theory, construction, applications of main types Circuit breakers, Relays for protection of generators, transformers and protection of feeders from overvoltages and other hazards. It emphasis on neutral grounding for overall protection

4 To develop an ability and skill to design the feasible protection systems needed for each main part of a power system in students.

Signature of HOD Signature of faculty Date: Date: Note: Please refer to Bloom‟s Taxonomy, to know the illustrative verbs that can be used to state the objectives.



COURSE OUTCOMES

Academic Year : 2013-2014 Semester : I / II Name of the Program: B.Tech EEE Year: IV Section: B Course/Subject: Switch Gear and Protection Course Code: EE 05538 Name of the Faculty: V. V.S.Madhuri Dept.: EEE Designation: ASSISTANT PROFESSOR The expected outcomes of the Course/Subject are: S.No Outcomes 1.Student g a i n s knowledge on different Protective Equipments or Power Systems





Signature of HOD Signature of faculty Date: Date: Note: Please refer to Bloom‟s Taxonomy, to know the illustrative verbs that can be used to state the outcomes.


(An Autonomous Institute under JNTUH)

Department/Program-EEE

Vision of the Institute To be among the best of the institutions for engineers and technologists with attitudes, skills and knowledge and to become an epicenter of creative solutions. Mission of the Institute To achieve and impart quality education with an emphasis on practical skills and social relevance. Vision of the Department To impart technical knowledge and skills required to succeed in life, career and help society to achieve self sufficiency. Mission of the Department

To become an internationally leading department for higher learning. To build upon the culture and values of universal science and contemporary education. To be a center of research and education generating knowledge and technologies which lay

groundwork in shaping the future in the fields of electrical and electronics engineering.

To develop partnership with industrial, R&D and government agencies and actively participate in conferences, technical and community activities.

Program Educational Objectives: This programme is meant to prepare our students to professionally thrive and to lead. During

their progression:

PEO 1: Graduates will have a successful technical or professional careers, including supportive and leadership roles on multidisciplinary teams.

PEO 2: Graduates will be able to acquire, use and develop skills as required for effective professional practices.

PEO 3: Graduates will be able to attain holistic education that is an essential prerequisite for being a responsible member of society.

PEO 4: Graduates will be engaged in life-long learning, to remain abreast in their profession and be leaders in our technologically vibrant society.

Programme Learning Outcomes:

Based on the department‟s educational objectives, students will achieve the following specific Program outcomes.

a. Ability to apply knowledge of mathematics, science, and engineering.

b. Ability to design and conduct experiments, as well as to analyze and interpret data.

c. Ability to design a system, component, or process to meet desired needs within realistic constraints such as economic, environmental, social, political, ethical, health and safety, manufacturability, and sustainability.

d. Ability to function on multi-disciplinary teams.

e. Ability to identify, formulate, and solve engineering problems.

f. Understanding of professional and ethical responsibility.

g. Ability to communicate effectively.

h. Broad education necessary to understand the impact of engineering solutions in a global, economic, environmental, and societal context.

i. Recognition of the need for, and an ability to engage in life-long learning.

j. Knowledge of contemporary issues.

k. Ability to utilize experimental, statistical and computational methods and tools necessary for engineering practice.

l. Graduates will demonstrate an ability to design electrical and electronic circuits, power electronics, power systems, electrical machines analyze and interpret data and also an ability to design digital and analog systems and programming them.

Name of the Course: SwitchGear&Protection

Course Objectives:



3. To teach students the theory, construction, applications of main types Circuit breakers, Relays for protection of generators, transformers and protection of feeders from overvoltages and

other hazards. It emphasis on neutral grounding for overall protection


Course Outcomes: 1.Student g a i n s knowledge on different Protective Equipments or Power Systems



4. Ability to discuss Recovery and Restriking. 5. Ability to express Oil circuit Breaker, Air Blast circuit Breakers, SF6 Circuit Breaker.

6.Abiity to identify DMT,IDMT type relays 7. Ability to identify Rotor, Stator Faults, interturn faults and their protection.

Assessment methods:

1. Regular attendance to classes. 2. Seminars. 3. Written tests clearly linked to learning objectives

Classroom assessment techniques like tutorial sheets and assignments.

1. Program Educational Objectives (PEOs) – Vision/Mission Matrix

Vision/Mission PEOs

Vision of the Institute Mission of the Institute Mission of the Program

1 X X 2 X X X 3 X X X 4 X X

2. Program Educational Objectives(PEOs)-Program Outcomes(POs) Relationship Matrix

P-Outcomes PEOs

a b c d e f g h i j K l

1 X X X X X X X X X X 2 X X X X X X X X X X 3 X X X X X X X X 4 X X X X

3. Course Objectives-Course Outcomes Relationship Matrix

Course-Outcomes Course-Objectives

1 2 3 4 5 6 7

1 X X 2 X X X X X 3 X X X 4 X X X X

4. Course Objectives-Program Outcomes (POs) Relationship Matrix P-Outcomes C-Objectives

a b c d e f g h I j k l

1 X X 2 X X X X X X 3 X X X X X X X X 4 X X X X X X X X

5. Course Outcomes-Program Outcomes (POs) Relationship Matrix

P-Outcomes C-Outcomes


1 X X 2 X X X X 3 X X X X X X X X X X 4 X X X X X X X 5 X X X 6 X X 7 X X X X X

6. Courses (with title & code)-Program Outcomes (POs) Relationship Matrix

P-Outcomes Courses


Electrical Machines-I

X X X X X X X X X X X

7. Program Educational Objectives (PEOs)-Course Outcomes Relationship Matrix

P-Objectives (PEOs) Course-Outcomes

1 2 3 4

1 X X 2 X 3 X X X 4 X X X 5 X 6 X 7 X

8. Assignments & Assessments-Program Outcomes (POs) Relationship Matrix

P-Outcomes Assessments

a b c d e f g h I J k l

1 X X X X X X X X 2 X X X X X X 3 X X X X 4 X X X X X X X X

9. Assignments & Assessments-Program Educational Objectives (PEOs) Relationship Matrix

PEOs Assessments

1 2 3 4

1 X X X 2 X X X X 3 X X 4 X X X X

10. Constituencies -Program Outcomes (POs) Relationship Matrix

P-Outcomes Constituencies

a B c d e f g h i j k l

Industry X X X X X X X Government Employers

X X X X

Management X X Students X Parents X

6



GUIDELINES TO STUDY THE COURSE / SUBJECT Academic Year : 2013-2014 Semester : I / II Name of the Program: B.Tech EEE Year: IV Section: B Course/Subject: Switch Gear and Protection Course Code: EE 05538 Name of the Faculty: V. V.S.Madhuri Dept.: EEE Designation: ASSISTANT PROFESSOR Guidelines to study the Course/ Subject: Switch Gear and Protection Course Design and Delivery System (CDD):

The Course syllabus is written into number of learning objectives and outcomes. These learning objectives and outcomes will be achieved through lectures, assessments,

assignments, experiments in the laboratory, projects, seminars, presentations, etc. Every student will be given an assessment plan, criteria for assessment, scheme of evaluation and

grading method. The Learning Process will be carried out through assessments of Knowledge, Skills and Attitude

by various methods and the students will be given guidance to refer to the text books, reference books, journals, etc.

The faculty be able to –

Understand the principles of Learning

Understand the psychology of students

Develop instructional objectives for a given topic Prepare course, unit and lesson plans

Understand different methods of teaching and learning

Use appropriate teaching and learning aids

Plan and deliver lectures effectively Provide feedback to students using various methods of Assessments and tools of Evaluation

Act as a guide, advisor, counselor, facilitator, motivator and not just as a teacher alone

Signature of HOD Signature of faculty Date: Date:



COURSE SCHEDULE

Academic Year : 2013-2014 Semester : I / II Name of the Program: B.Tech EEE Year: IV Section: B Course/Subject: Switch Gear and Protection Course Code: EE 05538 Name of the Faculty: V. V.S.Madhuri Dept.: EEE Designation: ASSISTANT PROFESSOR

The Schedule for the whole Course / Subject is:

S. No.

Description Duration (Date) Total No.

Of Periods From To

1.

Circuit Breakers-1

3/7/13

10/7/13

3

2.

Circuit Breakers-2

11/7/13

17/7/13

2

3.

Electromagnetic and Static Relays

18/7/13

22/8/13

10

4.

Generator Protection

28/8/13

4/9/13

3

5.

Transformer Protection

5/9/13

12/9/13

3

6.

Feeder and Bus-Bar Protection

18/9/13

25/9/13

3

7. Neutral Grounding

26/9/13 9/10/13 3

8. Protection against Over Voltages 10/10/13 23/10/13 5 Total No. of Instructional periods available for the course: 32 Periods



ILLUSTRATIVE VERBS FOR STATING INSTRUCTIONAL OBJECTIVES

These verbs can also be used while framing questions for Continuous Assessment Examinations as well as for End – Semester (final)Examinations

ILLUSTRATIVE VERBS FOR STATING GENERAL OBJECTIVES/OUTCOMES

ILLUSTRATIVE VERBS FOR STATING SPECIFIC OBJECTIVES/OUTCOMES:

A. COGNITIVE DOMAIN (KNOWLEDGE)

1 2 3 4 5 6

Knowledge Comprehension Understanding

Application of knowledge & comprehension

Analysis Of whole w .r.t. its

constituents

Synthesis

Evaluation

Judgment Define Identify Label List March Reproduce Select State

Convert Defend Describe (a Procedure) Distinguish Estimate Explain why/how Extend Generalize Give examples Illustrate Infer Summarize

Change Compute Demonstrate Deduce Manipulate Modify Predict Prepare Relate Show Solve

Breakdown Differentiate Discriminate Distinguish Separate Subdivide

Categorize Combine Compose Compose Create Devise Design Generate Organize Plan Rearrange Reconstruct Reorganize Revise

Appraise Compare Conclude Contrast Criticize Justify Interpret Support

B. AFFECTIVE DOMAIN (ATTITUDE)

C. PSYCHOMOTOR DOMAIN (SKILLS)

Adhere Resolve Assist Select Attend Serve Change Share Develop Help Influence

Bend Dissect Insert Perform Straighten Calibrate Draw Keep Prepare Strengthen Compress Extend Elongate Remove Time Conduct Feed Limit Replace Transfer Connect File Manipulate Report Type Convert Grow Move Precisely Reset Weigh Decrease Increase Paint Set

Know Comprehend

Understand Apply

Analyze Design

Generate Evaluate



SCHEDULE OF INSTRUCTIONS COURSE PLAN

Academic Year : 2013-2014 Semester : I / II Name of the Program: B.Tech EEE Year: IV Section: B Course/Subject: Switch Gear and Protection Course Code: EE 05538 Name of the Faculty: V. V.S.Madhuri Dept.: EEE Designation: ASSISTANT PROFESSOR Name of the Course: Switch Gear & Protection

Course Objectives:



3. To teach students the theory, construction, applications of main types Circuit breakers, Relays for protection of generators, transformers and protection of feeders from overvoltages and other hazards. It emphasis on neutral grounding for overall protection.


Course Outcomes:

At the end of the course student will have ability to

1.Student g a i n s knowledge on different Protective Equipments or Power Systems


3. Different applications o f the relays, circuit breakers, gr ou ndi ng for different elements of power system is also discussed in the subject. 4. Ability to discuss recovery and Restriking. 5. Ability to express Oil circuit Breaker, Air Blast circuit Breakers, SF6 Circuit Breaker.


SUGGESTED BOOKS:

TEXT BOOKS:

T1: Sunil S Rao “Switchgear Protection & Power Systems” , Khanna Publlishers

T2: Badari Ram & D.N Viswakarma “Power System Protection and Switchgear” , TMH publications

REFERENCES BOOKS :

R1: Paithankar and S.R.Bhide, “Fundamentals of Power System Protection”, PHI, 2003.

R2: T S Madhav Rao, “Power System Protection : Static Relays”, Tata McGraw-Hill, 2nd edition

R3: C R Mason, “Art & Science of Protective Relaying”, Wiley Eastern Ltd.

R4: Cl Wadhwa, “Electrical Power Systems”, New Age international (P) Limited, Publishers, 3rd

editon

R5: “Hand Book of Switchgears by BHEL”, TMH Publications.

Unit No.

Lesson

No.

Date

No. of Periods

Topics / Sub-Topics


Nos.

(Text Book: Electrical power systems by C.L WADHWA- 3rd Edition) Page Nos.: ____to ____

I

1

3/7/13

1




and Recovery voltages

1, 3 & 1,2,3

T1:3.7,4.8 T2:9.2, 9.3 R4:15.2 R6:13.6, 14.3

I

2

4/7/13

1

Restriking Phenomenon,

Average and Max. RRRV,

Numerical Problems on


and RRRV

2, 3 & 1,2, T1:3.10,3.19 T2: 9.3 R4:15.2 R6:14.4, 14.5

I

3

10/7/13

1

Current chopping and

Resistance switching, CB

ratings and Specifications:

Types and Numerical


2, 3 & 1,2, T1:3.6,3.18,3.19 T2: 9.5,9.6,9.16 R4:15.3,15.9,15.11 R6:7.3,14.2,14.3 14.7

II

1

11/7/13

1




Air Blast Circuit Breakers

2, 3 & 1,2,3 T1:6.2,8.3 T2: 9.7,9.8,9.9,9.10 R4:15.4,15.6 R6:15.3,15.5

II

2

17/7/13

1




SF6 circuit breakers

2, 3 & 1,2,3 T1:7.5,9.4 T2: 9.11,9.12,9.13,9.14,9.15 R4:15.7,15.8 R6:16.2,16.3

III

1

18/7/13

1


Construction of Attracted

2, 3 & 1,2,3 T1:26.9,26.10 T2: 2.1

armature relays, Principle of

Operation and Construction of

Balanced Beam relays

R2:1.1 R4:14.4 R6:3.2

III

2

24/7/13

1



relays, Principle of Operation

and Construction of Induction

Cup relays

2, 3 & 1,2,3 T1: 26.10,26.12 T2: 2.1 R2:1.6 R4:14.4 R6:3.2

III

3

24/7/13

1

Relays Classification:

Instantaneous, DMT and IDMT

types, Over current/ Under

voltage relays

2, 3 & 1,2,3 T1: 27.4,27.19 T2: 3.4,3.5 R2:4.2,6.4 R4:14.5 R6:4.4,4.5

III

4

25/7/13

1

Direction relays, Differential

Relays

2, 3 & 1,2,3 T2 : 3.10,3.11 T1 : 27.10,28.1 R2 : 7.2,7.3 R4 : 14.8,14.12 R6 : 4.7,4.9

III

5

31/7/13

1


III

6

1/8/13

1


III

7

7/8/13

1


III

8

8/8/13

1

Characteristics of Distance

Relays and Comparison.

2, 3 & 1,2,3 T2 : 4.5 to 4.20, T1 : 29.10 R2 : 8.6 R4 : 14.16 R6 : 4.8

III

9

14/8/13

1

Static Relays: Static Relays

verses Electromagnetic Relays.

2, 3 & 1,2,3 T2 : 2.3, 3.12 R2 : 1.4 R6 : 12.1,12.4

III

10

21/8/13

1

Numerical Problems

1, 3 & 1,2,3

IV

1

22/8/13

1


against Stator faults ,


against Rotor faults

2, 3 & 1,2,3 T2 : 6.1 T1 : 33.2,33.8 R2 : 16.3 R4 : 14.11 R6 : 6.3

IV

2

28/8/13

1


against Abnormal Conditions..

2, 3 & 1,2,3 T2 : 6.1 T1 : 33.12 R2 : 16.3

R4 : 14.11 R6 : 6.3

IV

3

29/8/13

1

Restricted Earth fault and

Inter-turn fault Protection,

Numerical Problems on %

Winding Unprotected.

2, 3 & 1,2,3 T2 : 3.8,3.9 T1 : 33.2,33.4,33.7 R2 : 11.13,16.3

V

1

4/9/13

1


Percentage Differential

Protection

2, 3 & 1,2,3 T2 : 6.2 T1 :32.5 R2 : 7.8 R6 : 6.2

V

2

5/9/13

1

Numerical Problem on Design

of CT s Ratio

2, 3 & 1,2,3 T2 : 6.2 T1 : 32.2 R2 : 7.7 R6 : 6.2

V

3

11/9/13

1


VI

1

12/9/13

1

Protection of Lines: Over

Current protection using

Impedance relays, Protection

of Lines: Carrier Current

protection using Impedance

relays.

2, 3 & 1,2,3 T2 : 5.2 T1 : 30.6,30.19 R2 : 9.4 R4 : 14.14 R6 : 5.2

VI

2

18/9/13

1

Protection of Lines: Three-

zone distance relay protection

using Impedance relays,

Translay Relay

2, 3 & 1,2,3 T2 : 6.3,6.4 T1 : 30.9.1, 30.18 R2 : 9.2,11.15,16.4 R4 : 14.10, 14.13 R6 : 6.5, 12.3

VI

3

19/9/13

1

Protection of Bus bars –

Differential protection,

Numerical Problems

2, 3 & 1,2,3 T2 : 6.4 T1 : 30.18 R2 : 16.4 R4 : 14.13 R6 : 12.3

VII

1

25/9/13

1

Grounded and Ungrounded

Neutral Systems, Effects of

Ungrounded Neutral on system

performance

2, 3 & 1,2,3 T1 : 18.15, 18.16, 18.17,18.22 R4 : 11.1, 11.2, 11.5

VII

2

26/9/13

1

Methods of Neutral

Grounding: Solid, Resistance,

Reactance

2, 3 & 1,2,3 T1 : 18.23 R4 : 11.4

VII

3

3/10/13

1



2, 3 & 1,2,3 T1 : 18.21, 18.24 R4 : 11.6

VIII

1

9/10/13

1


Power Systems, Protection

against Lightning Over Voltages

2, 3 & 1,2 T2 : 11.1, 11.2,11.3 R4 : 16.2

Valve type and Zinc-Oxide 2, 3 & 1,2 T2 : 11.4, 11.6,11.7

VIII 2 10/10/13 1 Lighting Arresters R4 : 16.4

VIII

3

16/10/13

1

Insulation and Coordination-

BIL, Impulse Ratio

2, 3 & 1,2 T2 : 11.10, 11.11

VIII

4

17/10/13

1


VIII

5

23/10/13

1



Numerical Problems

2, 3 & 1,2 T2 : 11.11




SYLLABUS Academic Year : 2013-2014 Semester : I Name of the Program: B.Tech, EEE… Year: IV Course/Subject: …SWITCH GEAR AND PROTECTION Name of the Faculty: V.V.S.MADHURI ………………………..Dept. EEE Designation : ASSISTANT PROFESSOR

SWITCHGEAR AND PROTECTION COURSE OBJECTIVE: “Switch Gear &Protection” subject gives general awareness of different Protective Equipments for Power Systems such as Relays, Circuit Breakers, and Isolators. It also explains about protective system- how it works and where it works? Different applications of the relays for different elements ofpower system is also discussed in the subject. UNIT – I: Circuit Breakers - 1 Circuit Breakers: Elementary principles of arc interruption, Recovery, Restriking Voltage and Recoveryvoltages.- Restriking Phenomenon, Average and Max. RRRV, Numerical Problems. Current Chopping and Resistance Switching. CB ratings and Specifications : Types and Numerical Problems. – Autoreclosures. UNIT –II: Circuit Breakers - 2 Description and Operation of following types of circuit breakers: Minimum Oil Circuit breakers, Air Blast Circuit Breakers, Vacuum and SF6 circuit breakers. UNIT – III: Electromagnetic and Static Relays Principle of Operation and Construction of Attracted armature, Balanced Beam, induction Disc and Induction Cup relays. Relays Classification: Instantaneous, DMT and IDMT types. Application of relays: Over current/ Under voltage relays, Direction relays, Differential Relays and Percentage Differential Relays. Universal torque equation, Distance relays: Impedance, Reactance and Mho and Off-Set Mho relays, Characteristics of Distance Relays and Comparison. Static Relays: Static Relays verses Electromagnetic Relays. UNIT – IV: Generator Protection Protection of generators against Stator faults, Rotor faults, and Abnormal Conditions. Restricted Earth fault and Inter-turn fault Protection. Numerical Problems on % Winding Unprotected. UNIT –V: Transformer Protection Protection of transformers: Percentage Differential Protection, Numerical Problem on Design of CT s Ratio, Buchholtz relay Protection.

UNIT –VI: Feeder and Bus-Bar Protection Protection of Lines: Over Current, Carrier Current and Three-Zone distance relay protection using Impedance relays. Translay Relay.Protection of Bus bars – Differential protection. UNIT – VII: Neutral Grounding Grounded and Ungrounded Neutral Systems.- Effects of Ungrounded Neutral on system performance.Methods of Neutral Grounding: Solid, Resistance, Reactance –Arcing Grounds and Grounding Practices. UNIT – VIII: Protection against over voltages Generation of Over Voltages in Power Systems.-Protection Against Lightning Over Voltages – Valve type and Zinc-Oxide Lighting Arresters. Insulation and Coordination -BIL, Impulse Ratio,Standard Impulse Test Wave, Volt-Time Characteristics and Insulation Co-ordination. SUGGESTED BOOKS : TEXT BOOKS : T1: Sunil S Rao “Switchgear Protection & Power Systems” , Khanna Publlishers T2: Badari Ram & D.N Viswakarma “Power System Protection and Switchgear” , TMH publications REFERENCES BOOKS : R1: Paithankar and S.R.Bhide, “Fundamentals of Power System Protection”, PHI, 2003. R2: T S Madhav Rao, “Power System Protection : Static Relays”, Tata McGraw-Hill, 2nd edition R3: C R Mason, “Art & Science of Protective Relaying”, Wiley Eastern Ltd. R4: Cl Wadhwa, “Electrical Power Systems”, New Age international (P) Limited, Publishers, 3rdediton R5: “Hand Book of Switchgears by BHEL”, TMH Publications.

Jul//2013-14

DEPARTMENT OF ELECTRICAL AND ELECTRONICS ENGINEERING IV B.Tech ( EEE ) A I Semester

Issue 1

DAY/ HOUR 11:00 to 12:30 12:30 to 01:30 1:30 to 2:00 2:00 to 3:30 3:30-5:00

ROOM NO

MONDAY

BR

EA

K

SGP Theory 2309

TUESDAY SGP Lab Instructions

WEDNESDAY Lab

THURSDAY

V.VIJAYA RAMA RAJU

FRIDAY

SATURDAY

IV B.Tech ( EEE ) B I Semester

Issue 1

DAY/ HOUR 11:00 to 12:30 12:30 to

2:00

2:00 to

2:30 2:30 to 3:30 3:30 to 5:00

ROOM NO

MONDAY

BR

EA

K

Theory 2309

TUESDAY Lab Instructions

WEDNESDAY Lab

THURSDAY SGP

V.V.S.MADHURI

FRIDAY

SATURDAY SGP





Lesson

No.

Date

No. of Periods



Nos.


I

3/7/13

1



Recovery, Restriking Voltage and

Recovery voltages

1, 3 & 1,2,3 T1:3.7,4.8 T2:9.2, 9.3 R4:15.2 R6:13.6, 14.3

I

4/7/13

1

Restriking Phenomenon, Average

and Max. RRRV,

Numerical Problems on Recovery,

Restriking Voltage and RRRV

2, 3 & 1,2, T1:3.10,3.19 T2: 9.3 R4:15.2 R6:14.4, 14.5

I

10/7/13

1

Current chopping and Resistance

switching, CB ratings and

Specifications: Types and Numerical


2, 3 & 1,2, T1:3.6,3.18,3.19 T2: 9.5,9.6,9.16 R4:15.3,15.9,15.11 R6:7.3,14.2,14.3 14.7






Lesson

No.

Date

No. of Periods



Nos.


II

11/7/13

1



Description and Operation of Air

Blast Circuit Breakers

2, 3 & 1,2,3 T1:6.2,8.3 T2: 9.7,9.8,9.9,9.10 R4:15.4,15.6 R6:15.3,15.5

II

17/7/13

1



Description and Operation of SF6

circuit breakers

2, 3 & 1,2,3 T1:7.5,9.4 T2: 9.11,9.12,9.13,9.14,9.15 R4:15.7,15.8 R6:16.2,16.3






Lesson

No.

Date

No. of Periods



Nos.


III

18/7/13

1


Construction of Attracted armature


Construction of Balanced Beam

relays

2, 3 & 1,2,3 T1:26.9,26.10 T2: 2.1 R2:1.1 R4:14.4 R6:3.2

III

24/7/13

1




Construction of Induction Cup

relays

2, 3 & 1,2,3 T1: 26.10,26.12 T2: 2.1 R2:1.6 R4:14.4 R6:3.2

III

24/7/13

1

Relays Classification: Instantaneous,

DMT and IDMT types, Over current/

Under voltage relays

2, 3 & 1,2,3 T1: 27.4,27.19 T2: 3.4,3.5 R2:4.2,6.4 R4:14.5 R6:4.4,4.5

III

25/7/13

1

Direction relays, Differential Relays 2, 3 & 1,2,3 T2 : 3.10,3.11 T1 : 27.10,28.1 R2 : 7.2,7.3 R4 : 14.8,14.12 R6 : 4.7,4.9

III

31/7/13

1


III

1/8/13

1

Impedance, Reactance relays 2, 3 & 1,2,3 T2 : 4.1,4.2 T1 : 29.6,29.8 R4 : 14.7,14.10

R6 : 3.3

III 7/8/13

1


III

8/8/13

1

Characteristics of Distance Relays

and Comparison.

2, 3 & 1,2,3 T2 : 4.5 to 4.20, T1 : 29.10 R2 : 8.6 R4 : 14.16 R6 : 4.8

III

14/8/13

1

Static Relays: Static Relays verses

Electromagnetic Relays.

2, 3 & 1,2,3 T2 : 2.3, 3.12 R2 : 1.4 R6 : 12.1,12.4

III

21/8/13

1

Numerical Problems

1, 3& 1,2,3






Lesson

No.

Date

No. of Periods



Nos.


IV

22/8/13

1


Stator faults , Protection of

generators against Rotor faults

2, 3 & 1,2,3 T2 : 6.1 T1 : 33.2,33.8 R2 : 16.3 R4 : 14.11 R6 : 6.3

IV

28/8/13

1


Abnormal Conditions..

2, 3 & 1,2,3 T2 : 6.1 T1 : 33.12 R2 : 16.3 R4 : 14.11 R6 : 6.3

IV

29/8/13

1

Restricted Earth fault and Inter-turn

fault Protection, Numerical

Problems on % Winding

Unprotected.

2, 3 & 1,2,3 T2 : 3.8,3.9 T1 : 33.2,33.4,33.7 R2 : 11.13,16.3






Lesson

No.

Date

No. of Periods



Nos.


V

4/9/13

1


Percentage Differential Protection

2, 3 & 1,2,3 T2 : 6.2 T1 :32.5 R2 : 7.8 R6 : 6.2

V

5/9/13

1

Numerical Problem on Design of CT

s Ratio

2, 3 & 1,2,3 T2 : 6.2 T1 : 32.2 R2 : 7.7 R6 : 6.2

V

11/9/13

1







Lesson

No.

Date

No. of Periods



Nos.


VI

12/9/13

1

Protection of Lines: Over Current

protection using Impedance relays,

Protection of Lines: Carrier Current

protection using Impedance relays.

2, 3 & 1,2,3 T2 : 5.2 T1 : 30.6,30.19 R2 : 9.4 R4 : 14.14 R6 : 5.2

VI

18/9/13

1

Protection of Lines: Three-zone

distance relay protection using

Impedance relays, Translay Relay

2, 3 & 1,2,3 T2 : 6.3,6.4 T1 : 30.9.1, 30.18 R2 : 9.2,11.15,16.4 R4 : 14.10, 14.13 R6 : 6.5, 12.3

VI

19/9/13

1

Protection of Bus bars – Differential

protection, Numerical Problems

2, 3 & 1,2,3 T2 : 6.4 T1 : 30.18 R2 : 16.4 R4 : 14.13 R6 : 12.3






Lesson

No.

Date

No. of Periods



Nos.


VII

25/9/13

1

Grounded and Ungrounded Neutral

Systems, Effects of Ungrounded

Neutral on system performance

2, 3 & 1,2,3 T1 : 18.15, 18.16, 18.17,18.22 R4 : 11.1, 11.2, 11.5

VII

26/9/13

1

Methods of Neutral Grounding:

Solid, Resistance, Reactance

2, 3 & 1,2,3 T1 : 18.23 R4 : 11.4

VII

3/10/13

1



2, 3 & 1,2,3 T1 : 18.21, 18.24 R4 : 11.6






Lesson

No.

Date

No. of Periods



Nos.


VIII

9/10/13

1


Power Systems, Protection against

Lightning Over Voltages

2, 3 & 1,2 T2 : 11.1, 11.2,11.3 R4 : 16.2

VIII

10/10/13

1

Valve type and Zinc-Oxide Lighting

Arresters

2, 3 & 1,2 T2 : 11.4, 11.6,11.7 R4 : 16.4

VIII

16/10/13

1

Insulation and Coordination-BIL,

Impulse Ratio

2, 3 & 1,2 T2 : 11.10, 11.11

VIII

17/10/13

1


VIII

23/10/13

1



Numerical Problems

2, 3 & 1,2 T2 : 11.11




LESSON PLAN Academic Year : 2013-2014 Semester : I / II Name of the Program: B.Tech EEE Year: IV Section: B Course/Subject: Switch Gear and Protection Course Code: EE 05538 Name of the Faculty: V. V.S.Madhuri Dept.: EEE Designation: ASSISTANT PROFESSOR Lesson No: I Duration of Lesson: 2hr Lesson Title: Circuit Breakers-1 INSTRUCTIONAL/LESSON OBJECTIVES: On completion of this lesson the student shall be able to: 1. Elementary principles of arc interruption Circuit Breakers, Recovery, Restriking Voltage and Recovery voltages 2. Restriking Phenomenon, Average and Max. RRRV, Restriking Voltage and RRRV 3. Current chopping and Resistance switching, CB ratings and Specifications: Types and Numerical Problems. – Auto reclosures TEACHING AIDS : Power Point Presentation, White board, White board marker. TEACHING POINTS :

In detail about arc interruption Circuit Breakers Restriking Phenomenon, Restriking Voltage and Recovery voltages Average and Max. RRRV, Average and Max. RRRV Current chopping and Resistance switching





LESSON PLAN Academic Year : 2013-2014 Semester : I / II Name of the Program: B.Tech EEE Year: IV Section: B Course/Subject: Switch Gear and Protection Course Code: EE 05538 Name of the Faculty: V. V.S.Madhuri Dept.: EEE Designation: ASSISTANT PROFESSOR Lesson No: II Duration of Lesson: 2hr Lesson Title: Circuit Breakers-2 INSTRUCTIONAL/LESSON OBJECTIVES: On completion of this lesson the student shall be able to:

1. Description and Operation of Minimum Oil Circuit breakers. 2. Description and Operation of Air Blast Circuit Breakers 3. Description and Operation of Vacuum circuit breakers, 4. Description and Operation of SF6 circuit breakers


In detail about different types of Circuit Breakers and their description and operation





LESSON PLAN Academic Year : 2013-2014 Semester : I / II Name of the Program: B.Tech EEE Year: IV Section: B Course/Subject: Switch Gear and Protection Course Code: EE 05538 Name of the Faculty: V. V.S.Madhuri Dept.: EEE Designation: ASSISTANT PROFESSOR Lesson No: III Duration of Lesson: 2hr Lesson Title: Electromagnetic and Static Relays INSTRUCTIONAL/LESSON OBJECTIVES: On completion of this lesson the student shall be able to:

1. Principle of Operation and Construction of Attracted armature relays, Principle of Operation and Construction of Balanced Beam relays

2. Principle of Operation and Construction of induction Disc relays, Principle of Operation and Construction of Induction Cup relays

3. Relays Classification: Instantaneous, DMT and IDMT types, Over current/ Under voltage relays 4. Direction relays, Differential Relays, Percentage Differential Relays, Impedance, Reactance relays, Mho

and Off-Set Mho relays, Characteristics of Distance Relays and Comparison, Electromagnetic Relays. TEACHING AIDS : Power Point Presentation, White board, White board marker. TEACHING POINTS :

In detail about Relays and its operation and their classification.

Different types of Relays and their applications.





LESSON PLAN Academic Year : 2013-2014 Semester : I / II Name of the Program: B.Tech EEE Year: IV Section: B Course/Subject: Switch Gear and Protection Course Code: EE 05538 Name of the Faculty: V. V.S.Madhuri Dept.: EEE Designation: ASSISTANT PROFESSOR Lesson No: IV Duration of Lesson: 2hr Lesson Title: Generator Protection INSTRUCTIONAL/LESSON OBJECTIVES: On completion of this lesson the student shall be able to:

1. Protection of generators against Stator faults , Protection of generators against Rotor faults 2. Protection of generators against Abnormal Conditions. 3. Restricted Earth fault and Inter-turn fault Protection, Numerical Problems on % Winding

Unprotected. TEACHING AIDS : Power Point Presentation, White board, White board marker. TEACHING POINTS :

Protection of Generators against faults ( i.e stator faults, Rotor faults) Restricted Earth Fault and Inter- turn fault protection


Signature of faculty

Note: Mention for each question the relevant Objectives and Outcomes Nos.



LESSON PLAN Academic Year : 2013-2014 Semester : I / II Name of the Program: B.Tech EEE Year: IV Section: B Course/Subject: Switch Gear and Protection Course Code: EE 05538 Name of the Faculty: V. V.S.Madhuri Dept.: EEE Designation: ASSISTANT PROFESSOR Lesson No: V Duration of Lesson: 2hr Lesson Title: Transformer Protection INSTRUCTIONAL/LESSON OBJECTIVES: On completion of this lesson the student shall be able to:

1. Protection of transformers: Percentage Differential Protection 2. Numerical Problem on Design of CT s Ratio 3. Buchholtz relay Protection


In detail about transformer faults and how to overcome these faults. Protection system for Transformers and the devices used for protection.





LESSON PLAN Academic Year : 2013-2014 Semester : I / II Name of the Program: B.Tech EEE Year: IV Section: B Course/Subject: Switch Gear and Protection Course Code: EE 05538 Name of the Faculty: V. V.S.Madhuri Dept.: EEE Designation: ASSISTANT PROFESSOR Lesson No: VI Duration of Lesson: 2hr Lesson Title: Feeder and Bus-Bar Protection INSTRUCTIONAL/LESSON OBJECTIVES: On completion of this lesson the student shall be able to:

1. Protection of Lines: Over Current protection using Impedance relays, Protection of Lines: Carrier Current protection using Impedance relays

2. Protection of Lines: Three-zone distance relay protection using Impedance relays, Translay Relay

3. Protection of Bus bars – Differential protection, Numerical Problems TEACHING AIDS : Power Point Presentation, White board, White board marker. TEACHING POINTS :

Different methods of Bus bar protection and protection of lines.





LESSON PLAN Academic Year : 2013-2014 Semester : I / II Name of the Program: B.Tech EEE Year: IV Section: B Course/Subject: Switch Gear and Protection Course Code: EE 05538 Name of the Faculty: V. V.S.Madhuri Dept.: EEE Designation: ASSISTANT PROFESSOR Lesson No: VII Duration of Lesson: 2hr Lesson Title: Neutral Grounding INSTRUCTIONAL/LESSON OBJECTIVES: On completion of this lesson the student shall be able to:

1. Grounded and Ungrounded Neutral Systems, Effects of Ungrounded Neutral on system performance

2. Methods of Neutral Grounding: Solid, Resistance, Reactance 3. Arcing Grounds and Grounding Practices, Numerical Problems


In detail about grounding with examples Ungrounded and grounded system in detail with its advantages and disadvantages. Methods of neutral grounding





LESSON PLAN Academic Year : 2013-2014 Semester : I / II Name of the Program: B.Tech EEE Year: IV Section: B Course/Subject: Switch Gear and Protection Course Code: EE 05538 Name of the Faculty: V. V.S.Madhuri Dept.: EEE Designation: ASSISTANT PROFESSOR Lesson No: VIII Duration of Lesson: 2hr Lesson Title: Protection against OverVoltages INSTRUCTIONAL/LESSON OBJECTIVES: On completion of this lesson the student shall be able to:

1. Generation of Over Voltages in Power Systems, Protection against Lightning Over Voltages 2. Valve type and Zinc-Oxide Lighting Arresters, Insulation and Coordination-BIL, Impulse Ratio 3. Standard Impulse Test Wave, Volt-Time Characteristics and Insulation Co-ordination,

Numerical Problems TEACHING AIDS : Power Point Presentation, White board, White board marker. TEACHING POINTS :

Generation of Over Voltages in power system and its causes. Lightning and types of lightning strokes and its effects

Protection against lightning over voltages and types of lightning arresters.






Academic Year : 2013-2014 Semester : I / II Name of the Program: B.Tech -EEE Year: IV Section: B Course/Subject: Switch Gear and Protection Course Code: EE 05538 Name of the Faculty: V. V. S.Madhuri Dept.: EEE Designation: ASSISTANT PROFESSOR This Assignment corresponds to Unit No. / Lesson: UNIT –I / CIRCUIT BREAKERS-1 Q1. (a) Explain briefly about various Switch gear components. (b) Give the importance of ratings and specifications of Circuit Breaker. Q2. Explain the terms Recovery voltage, Restriking voltage and RRRV. Derive an expression for the restriking voltage in terms of system capacitance and inductance Q3. Explain Slepian‟s theory of arc interruption and discuss its limitations. How does energy balance theory, explain the process of arc interruption? Please write the Questions / Problems / Exercises which you would like to give to the students and also mention the Objectives/Outcomes to which these Questions / Problems / Exercises are related. Objective Nos.: 1,3…………………………………………………………………………………………. Outcome Nos.: 1,2………………………………………………………………………………………. Signature of HOD Signature of faculty Date: Date:




Academic Year : 2013-2014 Semester : I / II Name of the Program: B.Tech - EEE Year: IV Section: B Course/Subject: Switch Gear and Protection Course Code: EE 05538 Name of the Faculty: V. V. S.Madhuri Dept.: EEE Designation: ASSISTANT PROFESSOR This Assignment corresponds to Unit No. / Lesson: UNIT –II / CIRCUIT BREAKERS-2 Q1 (a) Explain in detail the role of protective relays in a power systems. (b) Discuss in detail the causes and types and frequency of faults encountered in a power system. Q2. a) What are the necessary auxiliaries of ABCB? Describe compressed air system for supplying compressed air to the air blast circuit breakers? (b) Explain current chopping in VCB. Explain the function of RC surge suppressors used with vacuum switchgear for motor switching Please write the Questions / Problems / Exercises which you would like to give to the students and also mention the Objectives/Outcomes to which these Questions / Problems / Exercises are related. Objective Nos.:2,3……………………………………………………………………………………………. Outcome Nos.:1,2,3………………………………………………………………………………………. Signature of HOD Signature of faculty Date: Date:




Academic Year : 2013-2014 Semester : I / II Name of the Program: B.Tech EEE Year: IV Section: B Course/Subject: Switch Gear and Protection Course Code: EE 05538 Name of the Faculty: V. V. S.Madhuri Dept.: EEE Designation: ASSISTANT PROFESSOR This Assignment corresponds to Unit No. / Lesson: UNIT –III / Electromagnetic and Static Relays Q1 With the help of neat sketch explain the principle of operation of Differential relays. Q2. Distinguish between Over current relays, Directional relays and Differential relays. Q3 Define the following terms and explain their significance in distance protection (a) Reach of a distance relay. (b) Under reach. 6. Explain the „Differential protection‟. State the various applications of differential protection. Please write the Questions / Problems / Exercises which you would like to give to the students and also mention the Objectives/Outcomes to which these Questions / Problems / Exercises are related. Objective Nos.:2,3……………………………………………………………………………………………. Outcome Nos.:1,2,3……………………………………………………………………………………. Signature of HOD Signature of faculty Date: Date:




Academic Year : 2013-2014 Semester : I / II Name of the Program: B.Tech - EEE Year: IV Section: B Course/Subject: Switch Gear and Protection Course Code: EE 05538 Name of the Faculty: V. V. S.Madhuri Dept.: EEE Designation: ASSISTANT PROFESSOR This Assignment corresponds to Unit No. / Lesson: UNIT –IV / Generator Protection Q1. Explain resistance switching in detail with relevant diagrams and derive the expression of damped oscillation. Q2. (a) What is a direct connected generator? (b) Mention protective schemes for a direct connected generator. Explain any One of these schemes. Q3.What are the types of faults that are likely to occur in an alternator? Explain a protection scheme against any one of these faults. Please write the Questions / Problems / Exercises which you would like to give to the students and also mention the Objectives/Outcomes to which these Questions / Problems / Exercises are related. Objective Nos.:2,3……………………………………………………………………………………………. Outcome Nos.:1,2,3………………………………………………………………………………………. Signature of HOD Signature of faculty Date: Date:




Academic Year : 2013-2014 Semester : I / II Name of the Program: B.Tech - EEE Year: IV Section: B Course/Subject: Switch Gear and Protection Course Code: EE 05538 Name of the Faculty: V. V. S.Madhuri Dept.: EEE Designation: ASSISTANT PROFESSOR This Assignment corresponds to Unit No. / Lesson: UNIT –V / Transformer Protection Q1. Describe the protection scheme for internal faults in a three phase delta/star connected power transformer. Draw a neat sketch and explain clearly why the CTs are to be connected in a particular fashion only. Q2. What protective devices other than differential protection are used for the protection of a large transformer? Briefly describe them. Please write the Questions / Problems / Exercises which you would like to give to the students and also mention the Objectives/Outcomes to which these Questions / Problems / Exercises are related. Objective Nos.:2,3……………………………………………………………………………………………. Outcome Nos.:1,2,3………………………………………………………………………………………. Signature of HOD Signature of faculty Date: Date:




Academic Year : 2013-2014 Semester : I / II Name of the Program: B.Tech - EEE Year: IV Section: B Course/Subject: Switch Gear and Protection Course Code: EE 05538 Name of the Faculty: V. V. S.Madhuri Dept.: EEE Designation: ASSISTANT PROFESSOR This Assignment corresponds to Unit No. / Lesson: UNIT –VI / Feeder and Bus-Bar Protection Q1 Describe the principle of bus bar protection based on voltage differential systems. How does it respond to saturation of CTs for external and internal faults? Q2.Describe earth fault protection of sectionalized busbar. Q3. Explain „High Impedance Differential Protection of Bus‟. Please write the Questions / Problems / Exercises which you would like to give to the students and also mention the Objectives/Outcomes to which these Questions / Problems / Exercises are related. Objective Nos.:2,3……………………………………………………………………………………………. Outcome Nos.:1,2,3………………………………………………………………………………………. Signature of HOD Signature of faculty Date: Date:




Academic Year : 2013-2014 Semester : I / II Name of the Program: B.Tech EEE Year: IV Section: B Course/Subject: Switch Gear and Protection Course Code: EE 05538 Name of the Faculty: V. V. S.Madhuri Dept.: EEE Designation: ASSISTANT PROFESSOR This Assignment corresponds to Unit No. / Lesson: UNIT –VII / Neutral Grounding Q1. State the difference between equipment earthing and neutral earthing. Q2. What are the merits and demerits of reactance earthing compared to solid earthing? Q3. Explain the phenomenon of “arcing grounds” on overhead transmission lines. How does neutral earthing oppose arcing ground currents? Q4. Explain with diagrams : the phase to earth voltage rise in unfaulted lines during a single phase to earth fault in a 3-phase system without (a) neutral earhting, (b) the situation with neutral earthing. Please write the Questions / Problems / Exercises which you would like to give to the students and also mention the Objectives/Outcomes to which these Questions / Problems / Exercises are related. Objective Nos.:2,3……………………………………………………………………………………………. Outcome Nos.:1,2,3………………………………………………………………………………………. Signature of HOD Signature of faculty Date: Date:




Academic Year : 2013-2014 Semester : I / II Name of the Program: B.Tech EEE Year: IV Section: B Course/Subject: Switch Gear and Protection Course Code: EE 05538 Name of the Faculty: V. V. S.Madhuri Dept.: EEE Designation: ASSISTANT PROFESSOR This Assignment corresponds to Unit No. / Lesson: UNIT –VIII / Protection against Over Voltages Q1 .What are the causes of over-voltages arising on a power system? Why is it necessary to protect the lines and other equipment of power system against over voltages? Q2. How can the magnitude of over voltages due to direct and indirect lightning strokes on overhead lines be calculated? Q3. What is a ground wire? What are the requirements to be satisfied by ground wires to provide efficient protection to lines against direct lightening strokes? How do ground wires protect the overhead lines against direct lightening strokes? Q4. Explain the term over voltage factor, protective ratio, protective angle, protective zone and coupling factor? Please write the Questions / Problems / Exercises which you would like to give to the students and also mention the Objectives/Outcomes to which these Questions / Problems / Exercises are related. Objective Nos.:2,3……………………………………………………………………………………………. Outcome Nos.:1,2,3………………………………………………………………………………………. Signature of HOD Signature of faculty Date: Date:



TUTOTIAL SHEET - 1 Academic Year : 2013-2014 Semester : I / II Name of the Program: B.Tech EEE Year: IV Section: B Course/Subject: Switch Gear and Protection Course Code: EE 05538 Name of the Faculty: V. V.S.Madhuri Dept.: EEE Designation: ASSISTANT PROFESSOR This Tutorial corresponds to Unit No. / Lesson: UNIT –I / CIRCUIT BREAKERS-1 Q1. A three phase alternator of rated line to line voltage of 13.5KV is connected to a circuit breaker. The inductive reactance up to the circuit-breaker is 4 ohms per phase. The distributed capacitance up to the circuit breaker between phases to neutral is 0.2μF. Determine the following neglecting First Pole to clear factor. Q2. Explain the arc extinction process in alternating circuit breaker. An electric arc of 5cm has a current of 1000amperes and voltage across the arc is 25 volts. Calculate the energy consumed by the arc in one second. Q3. In a 132KV system, the inductance and capacitance per phase up to the location of the circuit breaker is 10H and 0.02μF, respectively. If the circuit breaker interrupts a magnetizing current of 20A (instantaneous), current chopping occurs. Determine the voltage which will appear across the contacts of the circuit breaker. Also calculate the value of the resistance which should be connected across the contacts to eliminate the transient restriking voltage. Please write the Questions / Problems / Exercises which you would like to give to the students and also mention the Objectives/Outcomes to which these Questions / Problems / Exercises are related. Objective Nos.: 1,3………………………………………………………………………………………. Outcome Nos.: 1,2…………………………………………………………………………………………. Signature of HOD Signature of faculty Date: Date:



TUTOTIAL SHEET - 1 Academic Year : 2013-2014 Semester : I / II Name of the Program: B.Tech EEE Year: IV Section: B Course/Subject: Switch Gear and Protection Course Code: EE 05538 Name of the Faculty: V. V.S.Madhuri Dept.: EEE Designation: ASSISTANT PROFESSOR This Tutorial corresponds to Unit No. / Lesson: UNIT –II / CIRCUIT BREAKERS-2 Q1. Transformer: 5 MVA, Y /, X=6% The transmission line sections AB and BC are to be protected by Mho distance relays. The system is as shown in the figure8b. If the C.T. ratio is 300/5 and C.T. ratio is 166000/110V and a 3-; short circuit fault of zero impedance occurs at F, find the impedance seen by the relays and determine the setting of the relays for high speed protection of line AB and backup protection for line BC, when the relays are located at end A. Please write the Questions / Problems / Exercises which you would like to give to the students and also mention the Objectives/Outcomes to which these Questions / Problems / Exercises are related. Objective Nos.: 2,3………………………………………………………………………………………. Outcome Nos.: 1,2,3…………………………………………………………………………………………. Signature of HOD Signature of faculty Date: Date:



TUTOTIAL SHEET - 1 Academic Year : 2013-2014 Semester : I / II Name of the Program: B.Tech EEE Year: IV Section: B Course/Subject: Switch Gear and Protection Course Code: EE 05538 Name of the Faculty: V. V.S.Madhuri Dept.: EEE Designation: ASSISTANT PROFESSOR This Tutorial corresponds to Unit No. / Lesson: UNIT –III / Electromagnetic and Static Relays Q1. A 50 Hz, 11 kV, three phase alternator with earthed neutral has a reactance of 5 ohm/phase and is connected to the bus-bar through a circuit breaker. The capacitance to earth between the alternator and the circuit breaker is 0.02 microfarad per phase. Assume the resistance of the generator to be negligible. Calculate the following. (a) Maximum value of voltage across the contacts of the circuit breaker (b) Frequency of oscillation (c) The average rate of rise of restriking voltage up to first peak Q2. (a) A 11KV, 100MVA alternator is grounded through a resistance of 5. The C.T.s have a ratio 1000/5. The relay is set to operate when there is an out of balance current of 1A. What percentage of the generator winding will be protected by the percentage differential scheme of protection? (b) A 11KV,100MVA alternator is provided with differential protection. The percentage of winding to be protected against phase to ground fault is 85%. The relay is set to operate when there is 20% of out of balance current. Determine the value of the resistance to be placed in the neutral to ground connection. Please write the Questions / Problems / Exercises which you would like to give to the students and also mention the Objectives/Outcomes to which these Questions / Problems / Exercises are related. Objective Nos.: 2,3………………………………………………………………………………………. Outcome Nos.: 1,2,3…………………………………………………………………………………………. Signature of HOD Signature of faculty Date: Date:



TUTOTIAL SHEET - 1 Academic Year : 2013-2014 Semester : I / II Name of the Program: B.Tech EEE Year: IV Section: B Course/Subject: Switch Gear and Protection Course Code: EE 05538 Name of the Faculty: V. V.S.Madhuri Dept.: EEE Designation: ASSISTANT PROFESSOR This Tutorial corresponds to Unit No. / Lesson: UNIT –IV / Generator Protection Q1. An 11kV,100MVA generator is provided with differential scheme of protection. The percentage of the generator winding to be protected against phase to ground fault is 80%. The relay is said to operate when there is 15% out of balance current. Determine the value of resistance to be placed in the neutral to ground connection. Q2. A circuit interrupts the magnetizing current of a 100MVA transformer at 220kV. The magnetizing current is 5% of the full load current. Determine the maximum voltage which may appear across the Gap of the breaker when the magnetizing current is interrupted at 53% of its peak value. The stray capacitance is 2500 microfarad. The inductance is 30H. Please write the Questions / Problems / Exercises which you would like to give to the students and also mention the Objectives/Outcomes to which these Questions / Problems / Exercises are related. Objective Nos.: 2,3………………………………………………………………………………………. Outcome Nos.: 1,2,3…………………………………………………………………………………………. Signature of HOD Signature of faculty Date: Date:



TUTOTIAL SHEET - 1 Academic Year : 2013-2014 Semester : I / II Name of the Program: B.Tech EEE Year: IV Section: B Course/Subject: Switch Gear and Protection Course Code: EE 05538 Name of the Faculty: V. V.S.Madhuri Dept.: EEE Designation: ASSISTANT PROFESSOR This Tutorial corresponds to Unit No. / Lesson: UNIT –V / Transformer Protection Q1. A 3-phase transformer rated for 33kV/6.6kV is connected star-delta and the protecting current transformer on the low voltage side have a ratio of 400/5. Determine the ratio of the current transformer on the HV side. Q2. A 3-phase, 66/11kV star-delta connected transformer is protected by Merz- price protection system. The CTs on the LT side have a ratio of 420/5 ampr. Show that the CTs on the HT side will have a ratio of 70: 5"3 . Q3. A 3-phase, 33/6.6 kV transformer is connected in star/delta and the protecting current transformer on the LV side have a ratio of 300/5. What will be the ratio of the current transformer on the HV side? Please write the Questions / Problems / Exercises which you would like to give to the students and also mention the Objectives/Outcomes to which these Questions / Problems / Exercises are related. Objective Nos.: 2,3………………………………………………………………………………………. Outcome Nos.: 1,2,3…………………………………………………………………………………………. Signature of HOD Signature of faculty Date: Date:



TUTOTIAL SHEET - 1 Academic Year : 2013-2014 Semester : I / II Name of the Program: B.Tech EEE Year: IV Section: B Course/Subject: Switch Gear and Protection Course Code: EE 05538 Name of the Faculty: V. V.S.Madhuri Dept.: EEE Designation: ASSISTANT PROFESSOR This Tutorial corresponds to Unit No. / Lesson: UNIT –VII / Neutral Grounding Q1. A132KV, 3-phase 50Hz overhead distribution line has phase to ground shunt capacitance of 0.0157μF per km. determine the inductance and KVA rating of arc suppression coil to be connected between neutral and earth. Q2. A 50Hz, 3 phase overhead line has phase ground shunt capacitance of 0.08μF. determine the inductance required in neutral to ground circuit to eliminate an arcing-ground at (a) other end of the line (b) at 70% length of line from the neutral earthing end. Please write the Questions / Problems / Exercises which you would like to give to the students and also mention the Objectives/Outcomes to which these Questions / Problems / Exercises are related. Objective Nos.: 2,3………………………………………………………………………………………. Outcome Nos.: 1,2,3…………………………………………………………………………………………. Signature of HOD Signature of faculty Date: Date:



TUTOTIAL SHEET - 1 Academic Year : 2013-2014 Semester : I / II Name of the Program: B.Tech EEE Year: IV Section: B Course/Subject: Switch Gear and Protection Course Code: EE 05538 Name of the Faculty: V. V.S.Madhuri Dept.: EEE Designation: ASSISTANT PROFESSOR This Tutorial corresponds to Unit No. / Lesson: UNIT –VIII / Protection against Over Voltages Q1. A 132KV, 3-phase , 50Hz transmission line 200Km long contains three conductors of effective diameter 2.2cm, arranged in a vertical plane with 4.5m spacing and regularly transposed. Find the inductive and KVA rating of Peterson coil in the system. . Please write the Questions / Problems / Exercises which you would like to give to the students and also mention the Objectives/Outcomes to which these Questions / Problems / Exercises are related. Objective Nos.: 2,3………………………………………………………………………………………. Outcome Nos.: 1,2,3…………………………………………………………………………………………. Signature of HOD Signature of faculty Date: Date:



III B.Tech II Semester Examinations(MODEL PAPER)

SWITCHGEAR AND PROTECTION

Electrical And Electronics Engineering Time: 3 hours Max Marks: 80 Answer any FIVE Questions All Questions carry equal marks

1. What protective device other than the differential protection are used for the protection of a large transformer? Briefly describe them. [16]

2. Discuss the various types of Stator and Rotor faults generally encountered in Generators and mention the protection schemes employed. [16]

3. With a neat sketch discuss the differential scheme for bus zone protection. [16] 4. (a) Explain the ratings of a Circuit breaker. (b) An air-blast circuit breaker designed to interrupt a transformer magnetizing current of

15A(rms) chops the current at an instantaneous value of 12A. The value of L and C in the circuit are 8H and 0.009µF. Find the voltage that appears across the circuit breaker. Assume that the inductive energy is transformed to capacitance. [8+8]

5. (a) Describe the behavior of electric arc in high Vacuum. (b) Discuss the arc phenomena in a circuit breaker? On what factors does the arc

phenomena depend? [8+8] 6. (a) Explain the phenomenon of Arcing grounds and suggest the method to minimize the effect of this phenomenon. (b) Explain the different types of neutral groundings. [10+6] 7. (a) Expain the following terms with respect to switch gear protection i. Pick up level ii. operating time iii. Reach iv. Under Reach v. Over Reach. (b) An earth fault setting relay has a setting of 20%, current rating 5A, it is connected to a C.T of ratio 500:5. Calculate pick up current in primary for which the earth fault relay operates. [8+8] 8. (a) What are the basic requirements of a lightning arrester? Differentiate between

i. A lightning arrester and a lightning conductor ii. Surge diverter and surge absorber.



EVALUATION STRATEGY Academic Year : 2013-2014 Semester : I / II Name of the Program: B.Tech EEE Year: IV Section: B Course/Subject: Switch Gear and Protection Course Code: EE 05538 Name of the Faculty: V. V.S.Madhuri Dept.: EEE Designation: ASSISTANT PROFESSOR 1. TARGET: A) Percentage for pass: 40% b) Percentage of class: 85% 2. COURSE PLAN & CONTENT DELIVERY (Please write how you intend to cover the contents: i.e., coverage of Units/Lessons by lectures, design, exercises, solving numerical problems, demonstration of models, model preparation, experiments in the Lab., or by assignments, etc.) 3. METHOD OF EVALUATION 3.1 Continuous Assessment Examinations (CAE-I, CAE-II) 3.2 Assigments 3.3 Quiz 3.4 Semester/End Examination 4. List out any new topic(s) or any innovation you would like to introduce in teaching the subjects in this Semester. ………………………………………………………………………………………………….. Signature of HOD Signature of faculty Date: Date:



COURSE COMPLETION STATUS

Academic Year : 2013-2014 Semester : I / II Name of the Program: B.Tech EEE Year: IV Section: B Course/Subject: Switch Gear and Protection Course Code: EE 05538 Name of the Faculty: V. V.S.Madhuri Dept.: EEE Designation: ASSISTANT PROFESSOR Actual Date of Completion & Remarks, if any

Units

Remarks

No. of Objectives Achieved

No. of Outcomes Achieved

Unit 1

Completed on 11/7/13 1,2,3 1,2,3

Unit 2

Completed on 25/7/13 2,3 1,2,3

Unit 3

Completed on 17/8/13 2,3 1,2,3

Unit 4

Completed on 29/8/13 2,3 1,2,3

Unit 5

Completed on 18/9/13 2,3 1,2,3

Unit 6

Completed on 2,3 1,2,3

Unit 7 Unit 8 Signature of HOD Signature of faculty Date: Date: Note: After the completion of each unit mention the number of Objectives & Outcomes Achieved.


Department of Electrical and Electronics Engineering(PREVIOUS RESULT ANALYSIS)

B.Tech EEE IV YEAR-Sec-A I SEM RESULT ANALYSIS OF 2008-2012 BATCH


Subject

Total

No. of

students

appeare

d

No. of

students

passed

No. of

students

failed

< 60%

60% to

70%

> 70%

Pass

percentage

SGP 126 125 01 21 43 61 99.2

B.Tech EEE IIIYEAR Section -A II SEM RESULT ANALYSIS OF 2007-2011 BATCH


Subject

Total No.

of students

appeared

No. of

students

passed

No. of

students

failed

< 60

60 to 70

> 70

Pass

percentage

SGP 66 59 07 21 18 20 89.39

B.Tech EEE IIIYEAR Section-B I SEM RESULT ANALYSIS OF 2007-2011 BATCH


Subject

Total No.

of students

appeared

No. of

students

passed

No. of

students

failed

< 60

60 to 70

> 70

Pass

percentage

SGP 65 63 02 17 13 33 96.92

Documents

COURSE OBJECTIVES - · PDF fileName of the Course: SwitchGear&Protection Course Objectives: 1. To introduce students to power system protection and switchgear. 2. To teach students