DocumentCode
1110686
Title
Insulation Levels for VEPCO 500-Kv Substation Equipment
Author
Wagner, C.L. ; Clayton, J.M. ; Young, F.S. ; Rudasill, C.L.
Author_Institution
Westinghouse Electric Corporation, East Pittsburgh, Pa.
Volume
83
Issue
3
fYear
1964
fDate
3/1/1964 12:00:00 AM
Firstpage
236
Lastpage
241
Abstract
A detailed study has been made of the Virginia Electric and Power Copmany (VEPCO) 500-kv transmission sytem to determine optimum insulation levels for the substation equipment. Results of this study depend on both economic and technical considerations. For the VEPCO system, a 70% arrester can be used at the generator step-up transformer locations, and a 75% will be required at step-down substations. Adequate impulse and switching surge margins permit a transformer BIL (basic impulse insulation level) of 1,300 kv to be used at all locations. The most practical circuit breaker BIL, consistent with good engineering practice and economy of application, is 1,550 kv.
Keywords
Arresters; Design engineering; Lightning; Power generation economics; Power transformer insulation; Storms; Substations; Surge protection; Systems engineering and theory; Voltage;
fLanguage
English
Journal_Title
Power Apparatus and Systems, IEEE Transactions on
Publisher
ieee
ISSN
0018-9510
Type
jour
DOI
10.1109/TPAS.1964.4765992
Filename
4765992
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