Seismic Response of Transformer-Bushing Systems

Document Type

Article

Publication Date

1-1-2004

Abstract

Substations are critical components in a power system. Performance of substations during past earthquakes has not been satisfactory and many key components such as transformers and porcelain bushings have sustained significant damage. Recently, several research investigations have been conducted to better evaluate, assess, and qualify seismic performance of critical substation components with emphasis on transformers and porcelain bushings. These studies include both analytical and experimental research. These works have revealed that understanding the seismic interactions among key equipments of a substation (transformers, porcelain bushings, foundation, and interconnecting elements) is critical to proper assessment of seismic performance of substations and in qualification of equipment. Due to weight limitations, shaking table tests of transformers are not feasible. Finite-element analysis, however, provides a suitable platform to assess their seismic performance and to evaluate their effect on the response of other important components such as bushings. This paper will present development of finite-element models and will discuss dynamic time history analyses results for several transformer-bushings systems.

Identifier

0347968153 (Scopus)

Publication Title

IEEE Transactions on Power Delivery

External Full Text Location

https://doi.org/10.1109/TPWRD.2003.820215

ISSN

08858977

First Page

131

Last Page

137

Issue

1

Volume

19

Grant

EEC-9701471

Fund Ref

National Science Foundation

This document is currently not available here.

Share

COinS