### 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.

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.