Original scientific paper

The effects of overload on distribution transformers

Robert Breazeal ; SCE

Abstract

Southern California Edison removes
approximately 30,000 medium voltage
transformers from service annually.
Approximately 2,000 of these units are
subjected to condition assessment
testing to determine suitability for reinstallation.
The challenge in assessment
testing lies in accurate interpretation
of the measured parameters. This
is particularly problematic when evaluating
distribution class transformers
which are routinely subjected to overloads
and voltage transients.

Keywords

oil; insulation; power factor; dielectric response; loading

Hrčak ID:

222746

URI

https://hrcak.srce.hr/222746

Publication date:

8.7.2019.

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