Radiometric Partial Discharge Detection: A Review

One of the most common failures or breakdowns that can occur in high-voltage (HV) equipment is due to partial discharges (PDs). This occurs as a result inadequate insulation, aging, harsh environmental effects, manufacturing flaws. PD detection and recognition methods have gained growing attention seen great progress past decades. Radiometric are one investigated approaches their immunity electromagnetic interference (EMI) capabilities detect locate activities different applications such transformers, cables, etc. Several review articles been published classify categorize these works. Nonetheless, some concepts missing, improvement techniques, at high-frequency (HF) very (VHF), overlooked. We present this paper an exhaustive study state-of-the-art based on radiometric usable radiofrequency bands (i.e., HF, VHF, UHF). Accordingly, we propose new generic categorization approach detected wave component (magnetic electric fields) pick-up location, either from free space ground cable.