Dependence of Partial Discharge Intensity on the Electrode Diameter in the Electrode-gas-synthetic Dielectric System.

The work presents the results of an investigation of the dependence of partial discharge intensity on the electrode diameter in a model system where an air cavity is situated between a metal electrode and a dielectric. The number of discharges per second, maximum apparent charge and PD current were chosen as quantities characterizing the PD intensity. The values of all measured quantities grow linearly with the electrode diameter.