Analysis of surges measured at 550 kV substations

Author

Okabe, S. ; Kan, M. ; Kouno, T.

Author_Institution

Tokyo Electric Power Co. Inc., Tokyo, Japan

Volume

6

Issue

4

fYear

1991

fDate

10/1/1991 12:00:00 AM

Firstpage

1462

Lastpage

1468

Abstract

An automatic measuring system was developed for measuring overvoltages, and it was applied to 550 kV power stations and substations in service. This system has been in operation since June 1987, and 176 records have been successfully obtained. Induced-lightning surges, back-flashover surges due to lightning, circuit-breaker-closing surges, and gas-insulated-substation (GIS)-disconnector-switching surges were recorded. Using simple EMTP analysis, the authors were able to reproduce the fundamental characteristics of the measured waveforms. The authors report on such measured data and on the results of data analysis

Keywords

circuit breakers; flashover; lightning; overvoltage; substations; surges; switching; voltage measurement; 550 kV; EMTP analysis; GIS; automatic measuring system; back-flashover surges; circuit-breaker-closing surges; disconnector-switching surges; gas-insulated-substation; overvoltage measurement; power stations; substations; surge measurement; Bandwidth; Circuits; EMTP; Frequency measurement; Insulation; Lightning; Power measurement; Substations; Surges; Voltage control;

fLanguage

English

Journal_Title

Power Delivery, IEEE Transactions on

Publisher

ieee

ISSN

0885-8977

Type

jour

DOI

10.1109/61.97678

Filename

97678