A Calculation of Potential Distribution Caused by Static Electrification Owing to Oil Flow in a Oil-Paper Insulation System and it´s Application to Partial Discharge Phenomena in Oil

In the oil-paper-insulation system the static electrification which is caused by the friction between the insulating oil and the solid insulating materials owing to oil flow brings about DC charging potential. Assuming that the positive current which was caused by the charge separation flowed into the insulating oil at the interface between the insulating oil and the solid insulating materials, we developed a calculation method of DC potential distribution which is caused by the static electrification in the oil-paper-insulation system.