Analysis of the spectrum of electromagnetic radiation generated by electrical discharges

摘要

The stidy presents research results considering measurement and detection of electromagnetic radiation (EMR) generated by partial discharges (PDs) in the air and during breakdown. The key objective of the works was to develop a methodology of detection of ionising radiation generated by electrical discharges. This includes design of experimental setup for simulation of discharges under laboratory conditions and selection of appropriate measuring devices. For measurements of visible light and UV radiation, a HR-4000 spectrophotometer was chosen. The high energy ionising radiation was detected by means of a scintillation counter by own production. The experimental studies involved registration of EMR emitted by both PD and electrical breakdowns of the measuring system for various point-point electrodes arrangements. Then, characteristic spectra were defined in bands from visible light, through UV to the X-ray radiation frequencies. The use of high-energy radiation detection for determining basic forms of discharges and the potential possibility of the detailed specification of their power balance are curtail achievements of the presented article. The other contributions lie in the simultaneously application of two independent discharge detection methods.