Subject description
The main topic of the course is the analysis of the behaviour of insulators in high-voltage networks.
The electric field in high voltage engineering, methods and procedures to determine the electric field. Dielectric strength and insulation withstand. Discharges in homogeneous and inhomogeneous field. Partial discharges, atmospheric discharges, origin and type of lighting strokes.
Insulating materials, gaseous dielectrics, solid and liquid insulating materials. Methods for isolation quality assessment. Distribution of potential along the long structures, ceramic type suspension insulators, transformer windings.
Generation and measurement of high AC voltages. Generation and measurement of high DC voltages. Generation and measurement of high impulse voltages. The formation of overvoltage, lightning overvoltage, system overvoltage.
Surge arresters and insulation coordination.
Analysis of high voltage transients. High-voltage DC transmission.
The subject is taught in programs
Electrical engineering 1st level
Objectives and competences
The student will learn the importance of high voltage in the design and operation of electricity networks and devices and will also acquire the basic knowledge of high voltage technology and methods for testing high voltage electric power equipment in the lab.
Teaching and learning methods
Lectures, tutorials and laboratory practice.
Expected study results
After successful completion of the course, students should be able to:
- describe the processes within insulators exposed to high voltage,
- understand the procedures of high voltage and currents generation and the procedures for insulators testing,
- use the knowledge for practical application in high-voltage equipment testing,
- analyze the voltage distribution on long structures,
- explain the concept of high-voltage protection in power networks,
- advise on the procedure for the selection of the equipment insulation level.
Basic sources and literature
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Kuffel E., Zaengl W. S., Kuffel J., High voltage engineering: fundamentals, 2nd ed., Reprinted. Oxford: Newnes, 2001.
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J. Voršič, J. Pihler, Tehnika visokih napetosti in velikih tokov, Univerza v Mariboru, FERI, Maribor 2008
Stay up to date
University of Ljubljana, Faculty of Electrical Engineering Tržaška cesta 25, 1000 Ljubljana