II-II (2021-2022)
A6209
Power Systems - II

Instructor

Dr. K. Murugaperumal
murugaperumal.k@vardhaman.org
+91 99448 40062

Objectives

This course deals with basic theory of transmission lines modeling and their performance analysis. Also this course gives emphasis on mechanical design of transmission lines, cables and insulators. The main objective of the course is to introduce students to Transmission system concepts. In particular, concepts like Transmission line parameters, Cables, Performance of Transmission lines, Transients, Sag and tension calculations and Underground cables concepts are emphasized.

Course Outcomes

After the completion of the course, the student will be able to:

A6209.1. Apply electromagnetic field theory to calculate the transmission line parameters.

A6209.2. Analyze the voltage regulation and efficiency for different Power transmission lines.

A6209.3. Analyze power loss due to corona in transmission line.

A6209.4. Analyze SAG,string efficiency and grading of cables in power system transmission.

Syllabus

Transmission line parameters: Estimation of Electric Stress,Types of conductors, calculation of resistance for solid conductors, calculation of inductance for single phase and three phase, single and double circuit lines, concept of GMR and GMD, symmetrical and asymmetrical conductor configuration with and without transposition. Calculation of capacitance for 2 wire and 3 wire systems, effect of ground on capacitance, capacitance calculations for symmetrical and asymmetrical single and three phase, single and double circuit lines.

Performance of short, medium and long length transmission lines: Classification of Transmission Lines, Short, medium and long line and their model representations, Nominal-T, Nominal-Pie and A, B, C, D Constants for symmetrical and Asymmetrical Networks. Mathematical solutions to estimate regulation and efficiency of all types of lines. Long Transmission Line, Rigorous Solution, evaluation of A,B,C,D Constants.

Various factors governing the performance of transmission line: Skin and Proximity effects, Ferranti effect, charging current, effect on regulation of the transmission line, shunt compensation. Corona, description of the phenomenon, factors affecting corona, critical voltages and power loss, radio Interference.

SAG and tension calculations: Sag and Tension Calculations with equal and unequal heights of towers, effect of wind and ice on weight of conductor.

Overhead line insulators and underground cables: Types of Insulators, String efficiency and Methods for improvement, voltage distribution, calculation of string efficiency, capacitance grading and static shielding. Types of cables, construction, types of Insulating materials, calculations of insulation resistance and stress in insulation. Capacitance of Single and 3-Core belted cables.

Text Books

  1. C. L. Wadhwa, Electrical Power Systems, 6th edition, New Age International (P) Limited, New Delhi, 2011
  2. M. L. Soni, P. V. Gupta, U. S. Bhatnagar, A. Chakrabarti, A Text Book on Electrical Engineering, 2nd edition, Dhanpat Rai and Co. Pvt. Ltd, New Delhi, 2011

Reference Books

  1. B. R. Gupta , Power System Analysis and Design, 2nd Edition, S. Chand and Company Limited, New Delhi, 2008
  2. Hadi Saadat , Power System Analysis, 3rd Edition, Public Affairs Information Service, New Delhi, 2010
  3. I. J. Nagarath, D. P .Kothari, Modern Power System Analysis, 3rd Edition, Tata McGraw Hill Higher Education, New Delhi, 2006

Resources

Lecture Notes

  1. Unit I Download
  2. Unit II Download
  3. Unit III Download
  4. Unit IV Download
  5. Unit V Download

Lecture Notes PPT

  1. Unit I Download
  2. Unit II Download
  3. Unit III Download
  4. Unit IV Download
  5. Unit V Download

Coursework

Inform the instructor any time prior to the due date for an assignment that you wish to use a late day; you may then turn in the assignment up to 24 hours late. Multiple late days may be used on the same assignment. There are no partial late days; turning in an assignment 2 hours late or 20 hours late will both use 1 late day. Note that late days are intended to cover both normal circumstances (you simply want more time to work on the assignment) and exceptional circumstances. The late assignments will receive at most half credit.

Alternate Assessments

  1. Assignment # 1
  2. Assignment # 2

Practice

  1. Measurement of low Resistances (Milli-Volt Drop Test).Download
  2. Simulation of Mid-Point compensation using PSCAD.Download
  3. End point compensation under light load using PSCAD.Download
  4. Line compensation under lagging PF Conditions using PSCAD.Download
  5. Simulation of load compensation using PSCAD.Download
  6. Verification of Ferranti effect in a long transmission line.Download
  7. Determination of ABCD parameters for a long transmission line.Download
  8. Plotting of e-fields using electrolytic bath.Download
  9. Overhead Transmission line modelling using PSCAD.Download
  10. Break down Characteristics of Sphere-Sphere Geometry.Download
  11. Break down Characteristics of Sphere-Point Geometry.Download
  12. Determination of Break down strength of oil for distance electrodes.Download

Lab attendance is required.

Continuous Assessment

# Name Question Paper Schema
1 CAT - I Download Download
2 CAT - II Download Download

Commitments

It is my ultimate goal for this course, and my teaching, to develop your academic skills, advance your learning of electrical and electronics engineering concepts. To do so will require commitments from myself and from you toward meeting this goal.

Active Participation

I will be prepared and on time for class each day, ready to use class time to help you understand the course material. I will respectfully listen to, understand, and answer questions asked in class.

You are expected to attend class and actively participate in discussions every day, answering questions, asking questions, presenting material, etc. Your participation will be respectful of your classmates, both of their opinions and of their current point in their educational journey, as we each approach the material with different backgrounds and contexts.

Constructive Feedback

I will keep office hours and be available for outside appointments, and respond to emails. I will provide feedback on group presentations, exams, projects, and homeworks.

You are encouraged to provide constructive comments for improving this course for furthering your learning throughout the semester. There will be an opportunity for anonymous course feedback at the end of the semester, in which I hope you all participate. Through your feedback I can improve this course and others for future students.

Academic Integrity

I will abide by the above syllabus and grade your work fairly.

  • All students have an equal right to their opinions and to receive constructive criticism.
  • Students should positively engage the course material and encourage their classmates to do the same.
  • No students should gain an unfair advantage or violate their peers' commitment to honest work and genuine effort. It follows that any work that a student submits for class will be that student's own work. The amount of cooperation undertaken with other students, the consistency and accuracy of work, and the test-taking procedure should adhere to those guidelines that the instructor provides.
  • Members of the Hendrix community value and uphold academic integrity because we recognize that scholarly pursuits are aimed at increasing the shared body of knowledge and that the full disclosure of sources is the most effective way to ensure accountability to both ourselves and our colleagues.