On-Line Partial Discharge Testing Applications An Overview


Medium- and high-voltage insulation failure is generally attributed to partial discharge activity, which is a partial failure of the insulation that ultimately bridges the insulation completely between electrodes. The partial discharges produce unique phenomena that can be detected by several means. By detecting this activity, corrective actions can be performed so that complete failure is avoided. Electrical equipment should be regularly tested for partial discharge activity in order to prevent failure and increase reliability.

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