Evaluation of Corona in Partial Discharge and Radio Interference Measurement Circuits

The paper presents how the physical phenomenon, corona discharge, can be evaluated using circuits for measuring partial discharges and radio disturbances. The main features and differences between these circuits are presented, which include the measurement systems and their calibration methods. In a test circuit simulating the occurrence of corona discharges, corona discharges were evaluated at different test voltages using the same measurement frequencies for the two systems. The UV spectrum and the electric field of these discharges are correlated with the applied voltage.