Partial Discharge Analysis on Power Transformers

Partial discharges (PD), as defined by IEC 60270, are localized dielectric discharges in a partial area of a solid or liquid electrical dielectric insulation system under high-voltage field stress. Partial discharges in a transformer deteriorate its insulation and can lead to failure of the transformer.

Before the initial use of a transformer, acceptance tests are required for confirming that it is working properly and for guaranteeing safe operations. You can use our testing solution at an early stage to measure partial discharges and diagnose fault locations in the insulation, such as in bushings and the tank. This allows you to draw conclusions regarding the condition of the insulation. In addition, you can initiate further measures such as necessary repair work.

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