Radio frequency measurement of different discharges

Discharges in power equipments may be a symptom of a fault in a component and, in such cases, their detection at an early stage is essential. This work presents the detection and identification methods based on frequency and time domain measurements made with an antenna, oscilloscope and a laptop. The identification of oil discharge, floating particle discharge and air discharge by radio frequency interference measurements was studied at a high voltage laboratory. The findings of the research should serve as a basis for remote radiometric measurements of partial discharges occurring in power transformers.