Power System Protection

Data is displayed for academic year: 2023./2024.

Lecturers

Prof.
Juraj Havelka

Lectures

Matija Zidar
PhD

Exercises

Asst. Prof.
Mateo Beus

Laboratory exercises

Asst. Prof.
Mateo Beus

Course Description

Definitions and terminology. Electromechanical, static, digital and numerical relays. Overcurrent protection. Distant protection. Connecting distance relays. Automatic reconnection. Differential protection of generators and transformers. Longitudinal differential protection of high voltage lines. Numerical distance protection and fault locator. Voltage and frequency protection. Thermal protection. Protection of electricity networks. Bus protection. Switch breaker protection. Transformer protection. Generator and Block Generator Transformer Protection. Protection of high voltage synchronous and asynchronous motors. Current and voltage measuring transducers and sensors. In-plant communications (wired and optical connections, Ehternet). Program blocks. Failure log and analysis (Comtrade record, Digsi, Reval, Master). Selection and adjustment of protection devices of individual components of the power system. Testing, parameterization and commissioning.

Study Programmes

University graduate
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[FER3-HR] Software Engineering and Information Systems - profile
Elective Courses (1. semester) (3. semester)
[FER2-HR] Electrical Power Engineering - profile
Specialization Course (1. semester) (3. semester)

Learning Outcomes

  1. select and adjust the distribution network relay protection
  2. select and adjust the transmission relay protection
  3. select and adjust relay protection of power transformers
  4. select and adjust the generator relay protection
  5. select bus protection
  6. test relay protection devices
  7. select and adjust the motor relay protection
  8. select and adjust the relay protection of the capacitor batteries

Forms of Teaching

Lectures

Seminars and workshops

Exercises

Field work

Independent assignments

Laboratory

Work with mentor

Week by Week Schedule

  1. Protection system function, Protection system and equipment definition
  2. Protection system types, Zones of protection, Power system measurements for PS
  3. Selectivity, Sensitivity, Speed, Reliability, Communication types, Communication protocols, IEC 60870
  4. Reserve, Flexibility, Cost/Benefit considerations, IEC 61850, Protection system development
  5. Digital relay algorithms, Digital relay hardware, Digital relay communication, Digital relay settings
  6. Relay input, Measurement services of relay devices, Relay output devices and tripping circuits
  7. Overcurrent relay
  8. Midterm exam
  9. Directional overcurrent relay, Overvoltage and undervoltage relay
  10. Distance relay
  11. Differential relay, Auto-Reclosing
  12. Generator protection, Transformer protection
  13. Transmission line protection, Busbar protection, Breaker failure protection, AC motor protection, Distribution system protection
  14. Power system simulator overcurrent relay testing, Power system simulator over/under voltage relay testing, Power system simulator distance relay testing, Power system simulator differential relay testing
  15. Final exam

Literature

(.), P. Rush (2002.), Network Protection and Automation Guide, Alstom T&D, Levallois-Perret, France,
(.), A. Marušić (2006.), Zaštita elektroenergetskog sustava, skripta, Skriptarnica FER, Zagreb,
(.), J. Lewis Blackburn, Thomas J. Domin (2006.), Protective Relaying; Principles and Applications, CRC Press, New,
(.), Power System Protection,

For students

General

ID 223739
  Winter semester
5 ECTS
L1 English Level
L1 e-Learning
30 Lectures
0 Seminar
6 Exercises
12 Laboratory exercises
0 Project laboratory
0 Physical education excercises

Grading System

90 Excellent
75 Very Good
65 Good
50 Sufficient