Power Transmission (ET-223 )

Objective of course:

To enable students to familiarize with topics in transmission and distribution
Introduction to Course:

The level of voltages used for overhead transmission of electrical power, transmission line parameters, Ampere’s circuital law, Gauss’ Law, Skin Effect, Proximity Effect, Ferranti Effect, Corona Effect, Use of loop integration, Transposition law, Mechanical Design of Overhead Transmission lines, Underground cables, Distribution systems (Radial, Ring Main, and Interconned systems), DC distributors and AC distributors.

Course Learning

Outcome (CLO): Upon successful completion of this course, the student will be able to:

CLO 1. To be able to understand the basic knowledge of electrical power transmission (AC & DC), and analysis of loss in transmission line due to transmission line parameter. [Congnitive-4]

CLO 2. Differentiate the performance of short, medium and long transmission line models and distributors radial, ring main and interconnected. [Congnitive-4]

CLO 3. Analysis of mechanical parameters i.e. Towers, lines and also analyzing the efficiency of insulators for transmission lines. [Congnitive-4]

Textbook: 1. Grainger and Stevenson, “Power System Analysis” Latest Edition.

2. V. K. Mehta, “Principles of Power Systems” 4th Edition.

References: 1. Stevenson, “Elements of Power Systems” Latest Edition.

Course Grading:

Students will be evaluated based on their completion of quizzes, assignments, mid exam and final exam.. Your overall grade will be determined on the following basis.

Evaluation Criteria: 1. Assignments 7.5%

2. Quizzes 7.5%

3. Attendance/Class Participation 05%

4. Mid-Term Exam 30%

5. Final Exam 50%

Detailed Weekly Lesson Plan:

Weeks

Topics

Quiz/ Assignment

WEEK 01

(13th Jan.-17th Jan. 2020)

Introduction and brief overview

Power system infrastructure
One line diagram
Level of voltages used for transmission and sub-transmission abroad and in Pakistan
Relationship of voltage to Power transmission

WEEK 02 (20th Jan.-24th Jan. 2020)

Conductors

Types of conductors
Materials of conductors with their conductivity
Stranded conductors
Standard conductors used transmission
Features and characteristics of different conductors

Assignment 1

WEEK 03 TO WEEK 04

(27th Jan. -

7th Feb. 2020)

Transmission Line Parameters

Conductance, resistance, inductance and capacitance
Resistance and factors affecting it
Skin effect, Proximity effect
Inductance of transmission line due (internal & external flux)
Inductance of single-phase and three-phase lines
Inductance of bundled conductors

WEEK 05 TO WEEK 06

(10th Feb. -21st Feb. 2020)

Transmission Line Parameters Cont.

Capacitance of single phase and three phase lines
Effect of earth on capacitance of transmission line
Capacitance of bundled conductors
Introduction to transmission line models (Short, Medium and Long)

Quiz 1

WEEK 07

(24th Feb.-28th Feb. 2020)

Power Flow in Transmission Line

ABCD parameter representation of transmission line models
Voltage regulation
Power flow in transmission line
Surge impedance loading

WEEK 08

(2nd Mar.-6th Mar. 2020)

Mid Semester Exam

WEEK 09 to Week 10

(9th Mar.-20th Mar. 2020)

Line Supports

Types of structures used for line supports
Towers and poles according to level of voltage
Design and foundation laying of towers
Sagging in transmission lines with poles being at same level
Sagging calculation with poles being at different levels

Assignment 2

WEEK 11

(23th Mar.-27th Mar. 2020)

Corona

Corona formation
Critical disruptive and visual critical voltage levels
Corona character tics
Advantages and disadvantages
Methods to reduce corona

WEEK 12

(30th Mar.-3rd Apr. 2020)

Insulators

Materials used for insulators
Insulators types and their level of voltages
Voltage distribution across insulator string

WEEK 13

(6th Apr. -10th Apr. 2020)

Insulators Cont.

String efficiency
Methods of improving string efficiency
Insulator testing

Quiz 2

WEEK 14

(13th Apr.-17th Apr. 2020)

High voltage DC transmission (HVDC)

Introduction of HVDC
Comparison of HVDC with AC power transmission

WEEK 15

(20th Apr.-24th Apr. 2020)

Distribution Systems:

Types of Distributors
DC Distributors

WEEK 16

(27th Apr. -1st May. 2020)

Distribution Systems:

AC Distributors

WEEK 17

(4th May -8th May 2020)

End Semester Exam

Class Timings for Power Transmission:

Instructor:	Engr. Muhammad Imran Hashmi
Office:	College of Engineering & Technology, University of Sargodha.
SCHEDULE	Theory Class: Wednesday 03:00 PM to 06:00 PM
TEXT BOOKS	Grainger and Stevenson, “Power System Analysis” Latest Ed. V. K. Mehta, “Principles of Power Systems” Fourth Ed.