Research on the Calibration Methods for Ultra-high Frequency Partial Discharge Detector

The performance of UHF partial discharge detector is important for the timely detection and diagnosis of insulation faults. However, the performance calibration method of UHF partial discharge detector under laboratory conditions is not yet fully mature. In this paper, on the basis of the related literature, a specific experimental research of the UHF partial discharge detector based on the gigahertz transverse electromagnetic wave (GTEM) cell about the effective height, amplitude linearity, detection sensitivity, dynamic scope was carried out. The validity of this method is verified by comparing the test equipment of three different manufacturers.