Course Details

Course Information Package

Course Unit TitleBASIC POWER SYSTEM PROTECTION
Course Unit CodeAEEE454
Course Unit Details
Number of ECTS credits allocated5
Learning Outcomes of the course unitBy the end of the course, the students should be able to:
  1. Describe what is switchgear, isolators, circuit breakers. Explain circuit breaker operation.
  2. Describe operating characteristics, explain the principle of protecting radial feeder circuits with fuses
  3. Analyse the operation of the various types of oil, air, sf6, vacuum circuit breakers, and explain their construction electrical principles.
  4. Describe unit-non unit protection, Analyse characteristics of zones of protection.
  5. Explain primary and secondary protection schemes, describe dual main protection schemes.
Mode of DeliveryFace-to-face
PrerequisitesAEEE351Co-requisitesNONE
Recommended optional program componentsNONE
Course Contents

Introduction to switchgear: general operational characteristics of circuit breakers, isolators, fuses, arc principles, contact erosion.

The fuse: operating characteristics of a fuse, rupture time, energy let through, use of fuses for protection of radial feeders.

Types of circuit breaker: oil, air, vacuum, sf6. Construction of various types, operational limitations of each model.

The protection overlay: unit protection, current differential scheme, non-unit protection, zones of operation of protection device, relay parameter setting.

Backup protection: primary and secondary protection, dual/main protection schemes.

Recommended and/or required reading:
Textbooks
  • Power system protection, P.M. Anderson , Mc Graw, Hill,1999.
References
  • Power system protection , IEEE press series on Power engineering, 1999, Paul, M. Anderson, IEEE
  • Practical power system protection, ISBN: 0750663979, by Leslie Hewitson, PSP Training, South Africa Mark Brown, Senior Staff Engineer, IDC Technologies, Perth, Australia. Ramesh Balakrishnan, Ramesh and Associates, Perth, Australia.
Planned learning activities and teaching methods

Students are taught the course through lectures (3 hours per week) in classrooms or lectures theatres, by means of traditional tools or using computer demonstration.

Auditory exercises, where examples regarding matter represented at the lectures, are solved and further, questions related to particular open-ended topic issues are compiled by the students and answered, during the lecture or assigned as homework.

Topic notes are compiled by students, during the lecture which serve to cover the main issues under consideration. Students are also advised to use the subject’s textbook or reference books for further reading and practice in solving related exercises. Tutorial problems are also submitted as homework and these are solved during lectures or privately during lecturer’s office hours.

Students are prepared for final exam, by revision on the matter taught, problem solving and concept testing and are also trained to be able to deal with time constraints and revision timetable. The final assessment of the students is formative and is assured to comply with the subject’s expected learning outcomes and the quality of the course.

Assessment methods and criteria
Tests40%
Final Exam60%
Language of instructionEnglish
Work placement(s)NO

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