Abstract: Petroleum-based mineral oil is being used dominantly as transformer oil for more than a century for its excellent dielectric properties. Taking into account the source is derived from ...

Abstract: Dissolved gas analysis (DGA)in power transformers is related to the degradation of insulation materials and dissolved methane (CH 4)is a symbol gas of low energy electrical or thermal faults ...

Abstract: Prebreakdown current, photo current, and light emission are measured simultaneously in transformer oil under nonuniform fields. For a negative needle point, the light emission is divided ...