Course syllabus

  1. Learning outcome
  2. Course syllabus

010113143-65 การป้องกันระบบไฟฟ้ากำลัง (Power System Protection)

Course Syllabus

Data entry : Asst.Prof. Dr.Teratam Bunyagul
1. Course number and name

010113143-65 การป้องกันระบบไฟฟ้ากำลัง (Power System Protection)

2. Credits and contact hours

3(3-0-6)

3. Instructor’s or course coordinator’s name

Asst.Prof. Dr.Teratam Bunyagul

4. Text book, title, author, and year

  1. Protective relays application guide, Protection & Control Limited, GEC ALSTHOM R&D
  2. The art and science of protective relaying, C. MASON, JOHN WILEY & SON, INC.
  3. Protective relaying principles and applications, J. Blackburn, MARCEL DEKKER, INC.

5. Specific course information

  1. brief description of the content of the course (catalog description)
    Fundamental of protection practices; instrument transformer and transducers; protection devices and systems; overcurrent and earth fault protection; differential protection; transmission line protection by distance relaying and pilot relaying; motor protection; transformer protection; electric generator protection; bus zone protection; introduction to digital protection devices.
  2. prerequisites or co-requisites
    010113135-65 Electrical Power Systems I
  3. indicate whether a required, elective, or selected elective (as per Table 5-1) course in the program
    Required :

6. Specific goals for the course

  1. specific outcomes of instruction (e.g. The student will be able to explain the significance of current research about a particular topic.)
    1. CLO1 Fault Analysis: Analyze symmetrical and unsymmetrical faults (using symmetrical components) to determine required relay operating conditions.
    2. CLO2 Instrument Transformers: Select and model current transformers (CTs) and voltage transformers (VTs) for protection applications.
    3. CLO3 Relay Technology: Understand operating principles of electromechanical, solid-state, and digital/numerical relays.
    4. CLO4 System Stability & Coordination: Perform relay coordination to ensure selectivity (fast clearing of faults with minimal disruption).
    5. CLO5 Protection Schemes Design: Design and coordinate protection systems, including overcurrent, directional, distance (impedance), and differential schemes.
    6. CLO6 Component Protection: Apply specific protection philosophies for generators, transformers, motors, and busbars.
  2. explicitly indicate which of the student outcomes listed in Criterion 3 or any other outcomes are addressed by the course.
    ABET Student Outcome (SO) Listed in Criterion 3 Course learning outcome (CLO)
    SO1 an ability to identify, formulate, and solve complex engineering problems by applying principles of engineering, science, and mathematics.
    • CLO4 System Stability & Coordination: Perform relay coordination to ensure selectivity (fast clearing of faults with minimal disruption).

7. Brief list of topics to be covered
Week Topic Details Activities
1 Introduction Short history of power system Why do we need power system protection? Protection functions Protection principles Protection requirements High voltage equipment in substations How do High voltage circuit breaker work? Medium voltage equipment and topology Lecture
2 Relay technologies and instrument transformers The first kind of protection relays Modern relays technologies Current transformer, Relay, and Circuit breaker Over current relay Instantaneous overcurrent relay Armature attraction Induction cup Definite time delay overcurrent relay Armature attraction and induction cup Inverse definite mean time delay overcurrent relay Lecture
3 Select and model current transformer Current transformer specification Plug setting Peak load + Current transformer + Plug setting Plug setting calculation %, Ampere Lecture Demonstrations
4 Fault calculations Per Unit and Percent Fault calculation review Maximum fault and minimum fault Lecture
5 Over Current Relay Coordination Overcurrent Relay Coordination Coordination by time Coordination by current Coordination by current and time Coordination with fuses Lecture
6 Directional over current and Fuses Directional Overcurrent Ring topology coordination High Voltage Fuses Constructions Fuse coordination Fuse specification and manual Lecture
7 Overcurrrent relay for motor protection Motor Protection High voltage induction motor Starting current Thermal withstand current Stall withstand time IDMT protection for HV motor Overcurrent relay MCGG manual Lecture
8 Distrance Protection Distance Protection Over-reach and under-reach in distance relays Lecture
Transmission line protection Transmission line protection zones Transmission Line Protection with distance relay and differential relay Lecture
10 Differential protection for busbar Differential protection Busbar Protection High impedance relay Biased busbar protection Lecture
11 Protection Zones Protection Zone in power system Zoning with Current transformer Busbar topologies arrangements Lecture
12 Differential protection for transformer 1 Transformer protection Differential protection Bias differential protection Mismatch current transformer for differential protection Lecture
13 Differential protection for transformer 2 Auto transformer protection 2 winding transformer protection 3 winding transformer protection Lecture
14 Differential protection for generator Generator Protection Differential protection Restricted earth fault protection Generator with neutral impedance protection Lecture
15 System stability and coordination Back up protection Local back up Remote back up Breaker failure protection Case study on back up protection in Thailand transmission system Digital relays and IEC 61850 Lecture Case studies
8. Course Assessment
Course assessment Weight score (%) Assessment tools Date
Home work 5 assignment, group discussion
Midterm examination 45 midterm examination
Final examination 50 final examination
The grading table
Grading Rank
>= 80% A
75% - 79.99% B+
66% - 74.99% B
57% - 65.99% C+
50% - 56.99% C
45% - 49.99% D+
40% - 44.99% D
0% - 39.99% F

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