Course Title: Power System Protection
Type of Course: Optional, Theory
Offered to: EEE
Pre-requisite Course(s): None
Electric arcs, arc extinction mechanism, transient recovery voltage. Circuit breakers: operating mechanisms, construction and operation of miniature circuit breaker (MCB), Molded Case circuit breaker (MCCB), air circuit breaker (ACB), air blast circuit breaker (ABCB), vacuum circuit breaker (VCB), oil circuit breaker (OCB), minimum oil circuit breaker (MOCB), sulfur hexafluoride (SF6) circuit breaker. High rupturing capacity (HRC) fuse, drop out fuse (DOF), load break switches, contactors, isolators, earthing switch, lightning arresters. CT, PT: wound type and CCVT (capacitor coupled voltage transformer), MOCT (magneto optical current transducer). Fundamental of protective relaying. Classical relays (electromagnetic attraction type, induction type); numerical relays. Inverse definite minimum time (IDMT) relays, directional relays, differential and percentage differential relays, distance relays, pilot relays (wire pilot, carrier). Protection of generators, motors, transformers, transmission lines, HVDC system and feeders.
The main objective of this course is to introduce the fundamentals of power system protection including the fundamental philosophy of protective relaying, relay operating principles and functional characteristics, circuit breaker operating principles and functional characteristics, unit and systems protection relaying schemes.
The course aims to familiarize students with different types of relays and circuit breakers, current and voltage transformers, and the basics of transmission line, transformer, rotating machinery, bus protection schemes.
The course aims for building the theoretical foundation required for understanding and solving power system protective relaying problems.
Electrical and electronic circuits, electrical machines, power systems and its operation.
| COs | CO Statements | Corresponding Pos | Learning Domain and Taxonomy Levels | Delivery Methods and Activities | Assessment Tools |
|---|---|---|---|---|---|
| CO1 | Understand the fundamental philosophy of protective relaying, explain the relay and circuit breaker operating principles and functional characteristics. | PO(a) | C1, C2 | Lectures, Tutorials, Homework | Assignment, Class test, Final exam |
| CO2 | Understand the different origins of power system equipment faults and analyze the equipment fault characteristics. | PO(a), PO(b) | C1, C2, C4 | Lectures, Tutorials, Homework | Assignment, Class test, Final exam |
| CO3 | Understand the characteristics of current and voltage transformers and solve the problems of measurement errors in protective relaying. | PO(a), PO(b), PO(c) | C1, C2, C3, C4 | Lectures, Tutorials, Homework | Assignment, Class test, Final exam |
| CO4 | Design basic protection schemes for transformer, rotating machinery, transmission line and specify their protection requirements. | PO(b), PO(c), PO(d) | C1, C3, C4 | Lectures, Tutorials, Homework | Assignment, Class test, Final exam |
Cognitive Domain Taxonomy Levels: C1 – Knowledge, C2 – Comprehension, C3 – Application, C4 – Analysis, C5 – Synthesis, C6 – Evaluation, Affective Domain Taxonomy Levels: A1: Receive; A2: Respond; A3: Value (demonstrate); A4: Organize; A5: Characterize; Psychomotor Domain Taxonomy Levels: P1: Perception; P2: Set; P3: Guided Response; P4: Mechanism; P5: Complex Overt Response; P6: Adaptation; P7: Organization
Program Outcomes (PO): PO(a) Engineering Knowledge, PO(b) Problem Analysis, PO(c) Design/development Solution, PO(d) Investigation,
PO(e) Modern tool usage, PO(f) The Engineer and Society, PO(g) Environment and sustainability, PO(h) Ethics, PO(i) Individual work and team work,
PO(j). Communication, PO(k) Project management and finance, PO(l) Life-long Learning
* For details of program outcome (PO) statements, please see the departmental website or course curriculum
| K1 | K2 | K3 | K4 | K5 | K6 | K7 | K8 | P1 | P2 | P3 | P4 | P5 | P6 | P7 | A1 | A2 | A3 | A4 | A5 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Lectures | Weeks | Topics (According to syllabus) | Mapping with COs |
|---|---|---|---|
| 1-6 | 2 | Fundamental of protective relaying. | CO1 |
| 7-15 | 3-5 | Classical relays (electromagnetic attraction type, induction type); numerical relays. Inverse Definite Minimum Time (IDMT) relays, directional relays, differential and percentage differential relays, distance relays, pilot relays (wire pilot, carrier) | CO1 |
| 16-21 | 6-7 | Electric arcs, arc extinction mechanism, transient recovery voltage. Circuit breakers: operating mechanisms, construction and operation of miniature circuit breaker (MCB), molded Case circuit breaker (MCCB), air circuit breaker (ACB), air blast circuit breaker (ABCB), vacuum circuit breaker (VCB), oil circuit breaker (OCB), minimum oil circuit breaker (MOCB), sulfur hexafluoride (SF6) circuit breaker. |
CO1 |
| 22-24 | 8 | High rupturing capacity (HRC) fuse, drop out fuse (DOF), load break switches, contactors, isolators, earthing switch; lightning arresters. | CO1 |
| 25-27 | 9 | CT, PT: wound type and CCVT (capacitor coupled voltage transformer), MOCT (magneto optical current transducer). | CO3, CO4 |
| 28-39 | 10-13 | Protection of generators, motors, transformers, transmission lines, HVDC system and feeders. | CO1, CO2, CO3, CO4 |
| 40-42 | 14 | Review | CO1, CO4 |
Four nos. of tests (Quiz, Assignment, Viva and Presentation) will be taken and best 3 nos. will be counted.
A comprehensive term final examination will be held at the end of the Term following the guideline of academic Council.
Class Participation 10%
Continuous Assessment 20%
Final Examination 70%
Total 100%
Lewis Blackburn, and Thomas J. Domin, “Protective Relaying - Principles and Applications,” 3rd ed., CRC Press, 2007
C. Russell Mason, “The Art & Science of Protective Relaying,” Wiley, 1967
Stanley H. Horowitz, and Arun G. Phadke, “Power System Relaying,” 3rd ed., John Wiley & Sons, 2008
Sunil S. Rao, “Switchgear Protection and Power System,” Khanna Publishers, 2010
Other Resources (Online Resources or Others, if any).