Variation of Partial Discharge Behavior of Epoxy Under Sealed Condition
Partial discharge behavior of epoxy resin with air void (open type and sealed type) was discussed as a function of accelerated time duration. The q — ϕ discharge patterns were modified according to the accelerated duration, and giving a well-known “swarming pulsive micro discharge” character. The void surface of the epoxy was damaged by the partial discharge energy due to the decomposition of the epoxy materials, which shows an orange skin structure with silica particles.
KeywordsApplied Voltage Closed Model Partial Discharge Accelerate Life Test Void Surface
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- T. Ishida, M. Nagao and M. Kosaki, “Effect of instantaneous voltage change rate on appearance of Swarming Pulsive Microdischarges“, Conference record of 1995 International Symposium on Electrical Insulating Materials, pp205, (1995)Google Scholar