Development of Evaluation Model for Substation Damage

Author

Noda, Hideki ; Takahashi, Reiko ; Kobayashi, Tsuneo ; Hotta, Akira ; Uchida, Yoko ; Carlson, Raul ; Roos, Sandra

Author_Institution

Power & Indus trial R&D Center, Toshiba Corp., Tokyo, Japan

Volume

26

Issue

3

fYear

2011

fDate

7/1/2011 12:00:00 AM

Firstpage

1920

Lastpage

1926

Abstract

Society´s demand for power is constantly increasing. To overcome the strains, substations are more commonly being built within urban areas. This has its shortcomings, since a substation poses a level of risk. For the first time, the development of an evaluation model for costs associated with substation incidents in urban areas was achieved by Toshiba with the cooperation of the Chalmers University of Technology. This paper discusses an evaluation model for quantifying damages in comparison between a gas-insulated transformer (GIT) and an oil-immersed transformer (OIT) in urban areas. The related damage costs associated with transformer failure during its operation are studied within this paper. The findings from the case study, utilizing a hypothetical scenario setting, were that the damage cost of OIT is in the range of U.S.$1M-$4M and that of the GIT is about U.S.$0.5M-$1.2M.

Keywords

failure analysis; fires; gas insulated transformers; power transformer insulation; risk analysis; substation protection; transformer oil; GIT; OIT; damage cost; evaluation model; fire incident risk; gas insulated transformer; oil immersed transformer; substation damage; transformer failure; urban areas; Buildings; Business; Oil insulation; Sensitivity analysis; Substations; Suspensions; Urban areas; ${rm CO}_{2}$ emission; damage cost; fire incident risk; gas-insulated transformer (GIT); hazards; oil-immersed transformers; risk prevention; urban substation;

fLanguage

English

Journal_Title

Power Delivery, IEEE Transactions on

Publisher

ieee

ISSN

0885-8977

Type

jour

DOI

10.1109/TPWRD.2011.2116161

Filename

5740973