Arc behaviour in small capacitive current interruption with high-voltage air-break disconnector

Y. Chai, P.A.A.F. Wouters, R.T.W.J. Hoppe, van, R.P.P. Smeets

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Abstract

Small capacitive current interruption with air-break disconnectors in a high-voltage network is an interactive event between circuit and arc with multiple re-ignitions during opening. In order to investigate the transient phenomena, a set-up to measure arc characteristics is developed and a series of interruption tests is performed. The system voltage is up to 150kV rms and the interruption capacitive current is up to 0.35A rms. The voltages across load- and sourceside capacitances and the current through the disconnector are recorded. Based on test data, arc characteristics such as arc conductance, arc power and v-i characteristic are studied. A comparison between the test and simulation shows good agreement.
Original languageEnglish
Title of host publicationProceedings of the 16th international symposium on High voltage engineering, Cape Town, South Africa, 24-28 August, 2009
Place of PublicationJohannesburg
PublisherSAIEE
PagesG-19-1/6
ISBN (Print)978-0-620-44584-9
Publication statusPublished - 2009

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