Elements of Electrical Power Networks

Higher education teachers: Blažič Boštjan
Credits: 5
Semester: winter
Subject code: 64639

Subject description

  • Prerequisits:
  • The prerequisite for the course is the enrolment in the second year.
  • The prerequisite for the oral exam is a positive assessment of tutorial reports.

Content (Syllabus outline):

  • Development of electrical power networks and general division of power networks. Mechanical parameters of overhead power lines, construction of power lines, and electrical parameters of power lines.
  • Composition of high voltage power cables, construction of power cables, impedances of single-core and three-core cables. Loading criteria of power networks. Electrical parameters of two winding and three winding transformers, synchronous generators and asynchronous machines.
  • Types of power substations with different implementations of switchyards. High voltage switching technology – circuit breakers and other switching devices.
  • Classical power factor correction devices, passive filters and reactors. Modern compensation devices with power electronics modules.

Objectives and competences:

The student will acquire the knowledge of main elements and devices of electrical power networks and the basic knowledge of mathematical modelling and parameters of electrical power elements used in power systems analysis.

Intended learning outcomes:

  • Knowledge and understanding: The student will become familiar with the functions of main power network elements and will be able to independently model and determine the parameters of power system elements and devices.
  • Application: Gathered knowledge forms the basis for mathematical modeling of power system elements used in the system analysis.
  • Reflection: The student will understand the relationship between the structure of elements and devices and their electrical parameters and will also understand the use of symmetrical components.
  • Transferable skills: Mathematical descriptions of power network elements are transferable in simulation programs.

Learning and teaching methods:

  • Lectures,
  • tutorials (laboratory work).

Study materials


  1. Papič I., Žunko P., Elektroenergetska tehnika I (Electric Power Engineering I), Založba FE in FRI, 2009.
  2. Kiessling, F., Nefzger P., Nolasco J.F., Kaintzyk U., Overhead Power Lines: Planning, Design, Construction, Springer Verlag, 2003.
  3. William H. Kersting, Distribution System Modeling and Analysis, CRC Press, 2002.
  4. Ramasamy Natarajan, Power system capacitors, Taylor & Francis, 2005.

Study in which the course is carried out

  • 2 year - 1st cycle - Applied Electrical Engineering - Power Engineering Technology and System Automation