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Description / Abstract:
Guidance on the use of outdoor power apparatus bushings is
provided in this document. The bushings are limited to those built
in accordance with IEEE Std C57.19.00TM-1991 (not the latest
revision).1 The latest revision, IEEE Std
C57.19.00TM-2004, does not address the use of condenser bushings in
oil circuit breakers and several voltage classes were dropped that
are still in use.
Purpose
The purpose of this guide is to present general information and
recommendations for the application of power apparatus bushings
when incorporated as part of power transformers, power circuit
breakers, and isolated-phase bus. The loading model developed in
this guide is based on oil-impregnated, paperinsulated,
capacitance-graded bushings. Similar loading models could be
developed for other bushing constructions.
1 Information about references can be found in Clause
2.