High Voltage Technology

Credit Hours: 3 ( 2 + 1) Course Code: ET-393

Course Level: ✘ UG PG Prerequisite(s): NA

Course Non- Humanities ✘ Engineering Computing

Category: Engineering and Social Foundation
Sciences
Management ✘ Core
Sciences Elective
Natural Interdisciplinary Engineering
Sciences Elective

Semester Specific Information:

Semester: Spring 2025
Instructor: Dr. Hafiz Abdul Muqeet Instructor abdul.muqeet@ptut.edu.pk
Email:
Schedule: Instructor Room 119
Lec: Wed: 10 am – 12 pm Office:
Visiting Hours: Thu: 11 am – 12 pm
Lab: Tue: 02 pm – 4 pm Thu: 2 pm – 4 pm

Textbook:
Naidu, High Voltage Engineering

Reference Book:
E. Kuffel, W.S. Zaengl, High Voltage Engineering Fundamentals

Assessment Tools:
Weightage Comments
Assignments Presentation 20%
Quizzes 10%
Mid–Term Exam 30%
Final Exam 40%

Course Description:
This course will introduce students to basics concepts in high voltage technology. The introduction to high voltage
technology with the generation of high voltage and currents will be studied. Measurement of high voltage and currents
need of high voltage, voltage levels, the transient voltage will also be discussed. The ionization process using the
Townsend theory will be analysed. In high voltage technology, the cathode process, decay process, and streamer
breakdown will also be studied. Conduction and Breakdown in gases, liquid dielectrics and breakdown in solid
dielectrics are very important topics of high voltage technology, so also will be discussed in detail.

Main Topics to be Covered:

 Introduction to high voltage technology.
 Generation of high voltage and currents
 Measurement of high voltage and currents need of high voltage, voltage levels, transient voltage.
 Ionization, Townsend theory
 Cathode process, decay process, streamer breakdown.
 Conduction and Breakdown in gases, liquid dielectrics
 Breakdown in solid dielectrics.

Course Learning Outcomes:

After successful completion of the course, a student should be able to:
Taxonomy Mapped
CLO # CLO Description Domain
Level PLO
RECOGNIZE various types of insulating materials and
CLO1 Cognitive 3 PLO1
their applications in high-voltage equipment

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 Explain the breakdown mechanisms in solid, liquid and
CLO2 Cognitive 4 PLO2
gaseous dielectrics
ANALYZE the performance of high-voltage generation
CLO3 Cognitive 4 PLO2
and measurement devices
Demonstrate understanding of the testing methods of
CLO4 insulating materials and power apparatus as per Psychomotor 3 PLO4
international standards
Mapping of Course and Program Learning Outcomes:

Design/Development

Modern Tool Usage

Lifelong Learning
Problem Analysis

Environment and
The Technologist

Communication
Individual and
Sustainability

Management
Investigation
of Solutions
Technology

and Society
Knowledge

Teamwork

Project
Ethics
PLO1 PLO2 PLO3 PLO4 PLO5 PLO6 PLO7 PLO8 PLO9 PLO10 PLO1 PLO12
1
CLO1            
CLO2            
CLO3            
CLO4           

Lecture Plan:
Lec # Course Topics Book Mapped CLO(s)
Reference
1 Introduction to high voltage technology. 1
1
2 Measurement of high voltage and currents, 1
1
3 Cathode process, decay process, streamer 1
breakdown.
1
4 Breakdown in solid dielectrics. 1
1
5 Generation of high voltage and currents, 1
2
6 Need of high voltage, voltage levels, transient 2
voltage.
7 Ionization, Townsend theory, 2
8 Conduction and Breakdown in gases, liquid 2
dielectrics,

9 Applications of Insulating materials in power 2

transformers, rotating machines, circuit breakers, s.
2
10 Overvoltage phenomenon and insulation 2
coordination in power systems.
2
11 Introduction to high voltage technology. 2
Generation of high voltage and currents, 2
12 Applications of Insulating materials in power 2
transformers, rotating machines, circuit breakers.

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Lecture Plan:
Lec # Course Topics Book Mapped CLO(s)
Reference
Generation of high voltage and currents, 2
measurement of high voltage and currents, need of
high voltage, voltage levels, transient voltage.
13 Overvoltage phenomenon and insulation 3
coordination in power systems.
Testing of high voltage electrical apparatus. 3
14 Introduction to high voltage technology. 3
3
15 Generation of high voltage and currents, 3
measurement of high voltage and currents, need of
high voltage, voltage levels, transient voltage.
3
16 Testing of high voltage electrical apparatus. 3

FINAL EXAM

List of Lab Experiments:

Lab # Lab Title Mapped CLO(s)
1 Study of high voltage testing transformers. 4
2 Study of Vandergrift generator 4
3 Observation of corona inception and breakdown voltage in air. 4
4 Observation of breakdown voltage in air. 4
5 Measurement of high voltage by sphere gap and uniform field gap. 4
6 Measurement of dielectric strength of solid insulation. 4
7 Measurement of Dielectric strength of insulating liquids. 4
8 Measurement of Impulse voltage. 4
9 Flashover along line insulators 4
10 Analsyis of cable 4
11 Cable testing with the various tests 4
12 Murray loop test based analysis 4
13 Disruptive discharge voltage tests with alternating current. 4
14 Disruptive discharge voltage tests with direct current. 4
15 Polarity effect and insulation screen 4
16 Generation and measurement of AC voltage through sphere gaps 4

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