Calibration of the Sensitivity of UHF Partial Discharge Detection Systems Based on Standard Device-monoconical TEM Cell

Ultra-high frequency (UHF) partial discharge detection systems have broad application prospect in fault diagnosis of GIS, transformers and cables. Sensitivity is an important parameter of UHF partial discharge detection systems. Standard device-monoconical transverse electromagnetic cell (TEM) cell is established for sensitivity calibration with standard calculated electric field. The sensitivity of six UHF partial discharge detection systems are calibrated in labs, whose results is in accordance with the field test verification. The results indicate that standard device-monoconical TEM cell is a possible solution for the calibration of the sensitivity of UHF partial discharge detection systems.