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Resource Category: Electrical Discharges

Partial Discharge could appear in any point of the insulation system as electrical stress, by exceeding the dielectric strength.

Electrical discharges (ED) in MV power circuits are (1) Partial Discharges (PD) and (2) Partial Arcing (PA). Partial Arcing is a term coined by Martec to explain multiple findings which exhibit some common characteristics of PD.

Partial discharge (PD) measurements have long been used to assess the condition of the electrical insulation in motors and generators rated 3.3 kV and above. There are many ways to measure PD during the normal service of the motor or generator. The drawback with many methods of measuring PD in the stator windings is that […]