Examination arrangement

Course content

The main objective of the course is to provide an overview of the principles and schemes for protecting power lines, transformers, buses, generators and introduces the fundamentals of wide-area monitoring and control (SCADA and EMS). It also briefly provides introduction to communication within digital substations (IEC 61850).
The course provides basic guidelines for relay protection and setting calculation. It also reviews power system faults and instrument transformers.
Throughout the course, students will have an opportunity to be exposed to the power system laboratory to learn more about different applications regarding power system protection by using commercial IEDs (Intelligent Electronic Device). It will facilitate to get skills for calculating settings and testing of protection operation conditions.

Learning outcome

Knowledge:
After completing this course the candidate shall understand the following items:
- Identify the challenges and solutions to industrial power system protection problems.
- Select the appropriate protection schemes for various applications.
- Analyse power system faults for balanced and unbalanced conditions.
- Gain knowledge about signal processing techniques needed for power system protection.
- Describe current and voltage transformers and their impact on protection scheme performance.
- Identify, apply, and calculate settings for overcurrent, directional overcurrent, distance, differential and pilot protection schemes.
- Identify, apply, and calculate settings for power lines, transformer, generator and bus bar protection schemes.
- Understand the main functions of Supervisory Control and Data Acquisition(SCADA) and Energy management System (EMS).
- Identify and apply wide-area monitoring and control (and protection) schemes.

Skills:
After completing this course the candidate should be able to:
- Investigate current and voltage transformers and its impact on protection principles.
- Perform power system analysis subject to symmetrical and unsymmetrical faults.
- Connect secondary current and voltage circuits of relay protections.
- Select proper sets of relays and to measure characteristics of protection.
- Calculate relay settings and test this in different operating conditions.

The student will also have increased his/hers abilities to:
- work independently and in groups,
- Use instruments and equipment in the laboratory.
- Be conscious about responsibility for own work and ability to perform teamwork rules

Learning methods and activities

Lectures, compulsory exercises, compulsory laboratory. The course is given in English.

Compulsory assignments

• Regneøvinger
• Laboratorieøvinger
• Prosjektarbeid

Further on evaluation

The assessment is based on laboratory work with report.

Recommended previous knowledge

TFE4112 Electric Circuits, TET4100 Circuit Analysis and TET4155 Infrastructure for Energy Transmission and Distribution or similar. The course TET4115 Power System Analysis is a relevant supplement.

Course materials

Text books and lecture notes (in English).
Protective Relaying Principles and Applications , J. Lewis Blackburn & Tomas J. Domin, 4th Ed, CRC Press, © 2014.