DC Flashover Performance of Various Types of Ice-Covered Insulator Strings under Low Air Pressure
In this study, icing flashover performance tests of typical DC porcelain, glass, and composite insulators are systematically carried out in a multifunction artificial climate chamber. The DC icing flashover voltages of seven typical insulators under various conditions of icing thickness, pollution severity before icing, string length, and atmospheric pressure are obtained. The relationships between icing thickness, salt deposit density as well as atmospheric pressure and the 50% icing flashover voltage are analyzed, and the formulas are obtained by regression method. In addition, the DC icing flashover voltage correction method of typical porcelain, glass, and composite insulator in the coexisting condition of high altitude, contamination, and icing is proposed.<strong></strong>
Year of publication: |
2012
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Authors: | Hu, Jianlin ; Sun, Caixin ; Jiang, Xingliang ; Xiao, Daibo ; Zhang, Zhijin ; Shu, Lichun |
Published in: |
Energies. - MDPI, Open Access Journal, ISSN 1996-1073. - Vol. 5.2012, 5, p. 1554-1576
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Publisher: |
MDPI, Open Access Journal |
Subject: | ice-covered insulator string | flashover performance | DC | low air pressure | pollution |
Saved in:
freely available
Extent: | application/pdf text/html |
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Type of publication: | Article |
Classification: | Q - Agricultural and Natural Resource Economics ; Q0 - Agricultural and Natural Resource Economics. General ; Q4 - Energy ; Q40 - Energy. General ; Q41 - Demand and Supply ; Q42 - Alternative Energy Sources ; Q43 - Energy and the Macroeconomy ; q47 ; Q48 - Government Policy ; Q49 - Energy. Other |
Source: |
Persistent link: https://www.econbiz.de/10011030789