The Low Temperature Liquefaction Characteristic Test of Sulfur Hexafluoride Gas Used in Electrical Equipment

Guo Xing Li; Lin Li; Zi Qiu Jiang

doi:10.4028/www.scientific.net/KEM.723.344

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HomeKey Engineering MaterialsKey Engineering Materials Vol. 723The Low Temperature Liquefaction Characteristic...

The Low Temperature Liquefaction Characteristic Test of Sulfur Hexafluoride Gas Used in Electrical Equipment

Abstract:

To study the low temperature liquefaction characteristics of SF₆ for the operation security of electric equipments in cold area, the writer carries out the low temperature liquefaction test of SF₆ respectively in laboratory and outdoors by using SF₆ gas low temperature experimental apparatus. According to the results of the test and the Beattie-Bridgman SF₆ empirical formula, SF₆ gas state parameter curve is plotted and a concise practical SF₆ gas state parameter formula is got. This formula is more applicable to electric equipments outdoors. The results show that SF₆ gas is easier to liquefy in cold area, and the liquefaction temperature of SF₆ gas is in proportion to gas pressure. So the liquefaction temperature of electric equipments operated in cold area should not be higher than the lowest area temperature. Otherwise, measures must be taken to prevent SF₆ gas from liquefaction.

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Proceedings of International Conference on Material Science and Engineering 2016

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Periodical:

Key Engineering Materials (Volume 723)

Pages:

344-348

DOI:

https://doi.org/10.4028/www.scientific.net/KEM.723.344

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Online since:

December 2016

Authors:

Guo Xing Li*, Lin Li, Zi Qiu Jiang

Keywords:

Characteristic, Low Temperature Liquefaction, Sulfur Hexafluoride (SF6), Test

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