Substation voltage uprating: design and experience

Author

Elahi, H. ; Panek, J. ; Stewart, J.R. ; Puente, H.R.

Author_Institution

GE Ind. & Power Syst., Schenectady, NY, USA

Volume

6

Issue

3

fYear

1991

fDate

7/1/1991 12:00:00 AM

Firstpage

1049

Lastpage

1057

Abstract

Uprating of substations (i.e. conversion from a lower rated voltage to a higher rated voltage without complete rebuilding) can be accomplished through sound insulation coordination. The authors provide a step-by-step procedure for insulation design of uprated substations, including two examples of recently uprated substations by Public Service Company of Colorado (PSCC) and El Paso Electric Company (EPE). PSCC´s substation is at 6000 ft elevation and it was uprated from 115 kV to 230 kV utilizing existing 550 kV BIL equipment. EPE´s substation is adjacent to a steel plant with a high level of contamination and it was uprated from 69 kV to 115 kV utilizing existing 350 kV BIL equipment. The authors consolidate the experience of the above utilities and others to present an up-to-date summary of the substation uprating activities in North America

Keywords

insulation co-ordination; substations; 115 kV; 230 kV; 350 kV; 550 kV; 69 kV; EPE; El Paso Electric Company; North America; PSCC; Public Service Company of Colorado; insulation coordination; substation voltage uprating; Acoustical engineering; Arresters; Industrial power systems; Insulation; Power engineering and energy; Rivers; Senior members; Substations; Surges; Voltage;

fLanguage

English

Journal_Title

Power Delivery, IEEE Transactions on

Publisher

ieee

ISSN

0885-8977

Type

jour

DOI

10.1109/61.85847

Filename

85847