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Jahangirabad Institute of Technology

Mr. Mohammad Imran Lecturer Semester VI, 2016 MASTER SCHEDULE: High Voltage Engineering(EEE-021)

week 1 Class 1 Monday, January 18,2016

Ionization processes, Townsend’s criterion.

Class 2 Tuesday, January 19, 2016 Breakdown in electronegative gases

week 1 Class 3 Wednesday, January 20, 2016 Time lags for breakdown., Streamer theory,

Class 4 Thursday, January 21,2016

Paschen’s law , Break down in non-uniform

field

Week 2 Class 5 Monday, January 25, 2016

Breakdown in vacuum, Classification of liquid

dielectric

Class 6 Tuesday , January 26, 2016 NO Class (Republic Day)

Week 2 Class 7 Wednesday, January 27, 2016

Characteristic of liquid dielectric, Breakdown in

pure liquid

Class 8 Thursday, January 28, 2016

Break down in commercial liquid

Week 3 Class 9 Monday, February 1, 2016 Intrinsic breakdown , Electromechanical

breakdown,

Class 10 Tuesday, February 02,2016

Breakdown of solid , Dielectric in practice

Week 3 Class 11 Wednesday, February 03,2016 Breakdown in composite dielectrics

Class 12 Thursday , February 04,2016 Review of Unit-1

Week 4 Class 13 Monday, February 08,2016

TEST Class 14 Tuesday, February 09,2016 Generation of high direct current (d.c.) voltages

Week 4 Class 15 Wednesday, February10,2016 Generation of high alternating voltages,

Class 16 Thursday, February 11, 2016 Generation of impulse voltages

Week 5 Class 17 Monday, February15,2016

Generation of impulse currents Class 18 Tuesday, February16,2016 Tripping and control of impulse generators.

Week 5 Class 19 Wednesday, February17,2016

Test

Class 20 Thursday, February18,2016 Measurement of high direct current voltages

Week 6 Class 21 Monday, February 22,2016

No class (Sports Event) Class 22 Tuesday, February23,2016

No class (Medical Camp)

Week 6 Class 23 Wednesday, February24,2016 No class (Medical Camp)

Class 24 Thursday, February25,2016

No class (Medical Camp) Week 7 Class 25 Monday, February 29,2016

Review of Unit-2

Class 26 Tuesday, March 01, 2016

Sessional-1

Week 7 Class 27 Wednesday, March 02, 2016

Sessional-1 Class 28 Thursday, March 03, 2016

Sessional-1

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Week 8 Class 29 Monday, March 07, 2016 No Class (Mahashivratri)

Class 30 Tuesday , March 08, 2016 Measurement of high alternating and impulse

voltages

Week 8 Class 31 Wednesday , March 09, 2016 Measurement of high direct

Class 32 Thursday , March 10, 2016 Measurement of high Alternating and impulse

currents,

Week 9 Class 33 Monday , March14 , 2016 Cathode Ray Oscillographs for impulse voltage

and current measurements. ,

Class 34 Tuesday , March15 , 2016 No Class Holiday (Kanshi Ram Jayanti)

Week 9 Class 35 Wednesday , March 16, 2016 Measurement of direct current resistively

Class 36 Thursday , March 17, 2016 Measurement of dielectric constant and loss factor

Week 10 Class 37 Monday , March21 , 2016 Partial discharge measurements Testing of

insulators and bushings

Class 38 Tuesday , March22 , 2016 Testing of isolators and circuit breakers

Week 10 Class 39 Wednesday , March 23, 2016 No Class Holiday (Holi)

Class 40 Thursday , March 24, 2016 No Class Holiday (Holi)

Week 11 Class 41 Monday , March28 , 2016 Testing of cables

Class 42 Tuesday , March29 , 2016 Testing of transformers

Week 11 Class 43 Wednesday , March 30, 2016 Radio interference measurements

Class 44 Thursday , March 31, 2016 Testing of surge arresters

Week 12 Class 45 Monday , April 04 , 2016 Test unit 03

Class 45 Tuesday , April 05 , 2016 Test unit 04

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GENERAL INFORMATION Teaching Staff: Mr. Mohammad Imran, JIT EE, mdimran_rbl@yahoo.com Course Web Site: http://www.jit.edu.in Class Meetings: JIT HoD Room EE Goals :

This subject is based on the study of High voltage engineering.so main object of this course will be to intimate student’s best knowledge about generation, transmission, precaution, handling and controlling of High Voltage. At the completion of the course students should be able to describe the all the above. Course Objectives:

A. At the time of Sessional Exam No. 1 (after approximately 19 (Fifty minutes of lectures), the students should be able describe the following:

1. Understand the concepts of transformers (single phase, three phase and auto.)

2. Ionization processes.

3. Breakdown in electronegative gases.

4. Streamer theory.

5. Break down in non-uniform field, Breakdown in vacuum

6. Classification of liquid dielectric.

7. Characteristic of liquid dielectric.

8. Generation of high direct current voltages.

9. Generation of high alternating voltages.

10. Measurement of high direct, alternating and impulse currents.

B. By the time of Exam No. 2 (after approximately 16 lectures), the students should be able describe the items listed below:

1. Measurement of direct current resistively.

2. Partial discharge measurements.

3. Difference between open loop system and closed loop system.

4. Cathode Ray Oscillographs for impulse voltage and current measurements.

5. Testing of isolators and circuit breakers.

6. Testing of cables.

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7. Testing of transformers. 8. Testing of surge arresters. 9. Radio interference measurements. Course Outcome:

1. Able to describe the methods of high voltage generation.

2. They should know other methods of generation of high voltage instead of Transformers.

3. They should be able to describe utilization of transformer in HV generation as cascade connection.

4. Able to know which type of insulator should use? And where?. 5. Conversion.(Electrical to mechanical and vice versa)

Grading: Based On Four Points:

1. Sessional Marks (1.5 hours paper/ 15 Marks) 2. Attendance (05 Marks) 3. Assignments (Total 5/5 Marks) 4. Class Test (Total 3 / 05 Marks)

Class Preparation and Participation: Reading assignments are given in the Class Schedule for each class session. You are expected to come to class prepared to discuss the readings and the suggested questions. Your individual class participation grade will be based upon your in-class remarks during discussions.

Classes and Topics Class 01 Monday, January 18, 2016

Breakdown Mechanism

With ever increasing demand of electrical energy, the power system is growing both in size and complexities.

The generating capacities of power plants and transmission voltage are on the increase because of their inherent

advantages. If the transmission voltage is doubled, the power transfer capability of the system becomes four

times and the line losses are also relatively reduced. As a result, it becomes a stronger and economical system. In

India, we already have 400 kV lines in operation and 800 kV lines are being planned. In big cities, the

conventional transmission voltages (110 kV–220 kV etc.) are being used as distribution voltages because of

increased demand. A system (transmission, switchgear, etc.) designed for 400 kV and above using conventional

insulating materials is both bulky and expensive and, therefore, newer and newer insulating materials are being

investigated to bring down both the cost and space requirements. The electrically live conductors are supported

on insulating materials and sufficient air clearances are provided to avoid flashover or short circuits between the

live parts of the system and the grounded structures. Sometimes, a live conductor is to be immersed in an

insulating liquid to bring down the size of the container and at the same time provide sufficient insulation

between the live conductor and the grounded container. In electrical engineering all the three media, viz. the gas,

the liquid and the solid are being used and, therefore, we study here the mechanism of breakdown of these

media.

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Class 02 Tuesday , January , 18,2016

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Class 3 Wednesday, January , 19,2016

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Class 4 Thursday January, 20, 2016

Class 5 Monday, January 25, 2016

Classification of liquid dielectric, Characteristic of liquid dielectric.

Class 6 Tuesday, January 27, 2016 Breakdown in pure liquid and commercial liquid, Intrinsic breakdown. Class 7 Wednesday, January 28, 2016 BREAKDOWN IN SOLID:

Class 8 Thursday, January 29, 2016

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Class 9 Monday, February 1, 2016

Class 10 Tuesday, February 2, 2016

Generation of HV DC

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Class 11 Wednesday, February 3, 2016

Break down of composite diaelectric Class 12 Thursday, February 04, 2016

Generation of HIGH IMPULSE VOLTAGE

Review of unit 01 Class 13 Monday, February 08,2016

Test

Class 14 Tuesday, February 09,2016

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Class 15 Monday, February10,2016

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Class 16 Thursday, February 11, 2016

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Class 32 Thursday , March 10, 2016 Measurement of high Alternating and impulse currents

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Class 33 Monday , March14 , 2016.

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Class 35 Wednesday, March 16, 2016

Class 36 Thursday, March 17, 2016 .

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. Class 37 Monday, March21, 2016 .

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Class 38 Tuesday , March22, 2016

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Class 38 Wednesday , March23 , 2016

Class 41 Monday , March28 , 2016

Class 42 Tuesday , March29, 2016

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Class 44 Thursday, March 31, 2016

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Class 30 Wednesday, March 18,2015

Numerical Problems.

READING PACKET TABLE OF CONTENTS Reading Title

1. HIGH VOLTAGE ENGINEERING, C.L.WADHWA new age publication. 2. HIGH VOLTAGE ENGINEERING by Subeer ray