High Voltage Engineering

The subject introduces students with high voltage technique from its power engineering applications point of view. It brings information about high voltage test sources and possibilities of high voltages and heavy currents measurements. It informs about high voltage insulation systems and methods for determining their states. There are explained particular types of electrical discharges and possibilities of their elimination. Practical seminars are based on measurements in the high voltage laboratory.


  • High voltage testing sources (PDF)(info).
  • Measurement of high voltages (PDF)(info)
  • Impulse measurements; high voltage measurement quality.
  • Electrical strength of gas, liquid and solid insulators (PDF)(info).
  • Electrical discharges in power engineering (PDF)(info).
  • Overvoltage (PDF)
  • Overvoltage protections(PDF).
  • Transient behaviour of transformer windings(PDF)(info).

Laboratory Exercises:

  1. Introduction to high voltage laboratory, work safety, organization of labs.
  2. Quality of High Voltage Measurements (Task_1(info),Table_for_Spherical_Spark_Gaps(info))
  3. Dynamic Parameters Measurement of Impulse Voltage Dividers (Task_2(info))
  4. Measurement of the Voltage-Time Characteristic of an Insulator (Task_3(info))
  5. Barriers Influence to the Electrical Strength in a Non-Uniform Electric Field (Task_4(info))
  6. Electrode Shape Influence to the Flashover Voltage in the Air (Task_5(info))
  7. Surface Discharges on a Bushing (Task_6(info))
  8. Ferroresonance Phenomena Measurement (Task_7(info))
  9. Waves on Transmission Lines (Task_8(info))
  10. Voltage Distribution Along Transformer Winding (Task_9(info))
  11. Measurements of Surge Arresters (Task_10(info))
  12. Measurements of Partial Discharges (Task_11)
  13. The inspection of processed measurements, course credits.

Measurement data: