NDLI: The influence of SF/sub 6/ and SF/sub 6//N/sub 2/ gas pressure to the breakdown performance of polyester film

Content Provider	IEEE Xplore Digital Library
Author	Zhang Peihong Gong Guoli Dong Guangyu Dong Zhenhua
Copyright Year	1996
Description	Author affiliation: Dept. of Electr. Mater., Harbin Univ. of Sci. & Technol., China (Zhang Peihong)
Abstract	SF/sub 6/ has been widely used as the gas insulating medium in gas insulated transformers, and polyester film used as the turn insulation and other insulating materials. In this paper, the insulation strength of SF/sub 6//N/sub 2/-film turn insulation is tested when the SF/sub 6/ is replaced by SF/sub 6//N/sub 2/ mixed gas, and also compared with that of SF/sub 6/-film. The results show that the power frequency breakdown voltage and breakdown stress of SF/sub 6//N/sub 2/-film is lower than that of SF/sub 6/-film under the same pressure and for the same film thickness, the mean value of the former is about 91% of the latter. In order to reach the same level of turn insulation strength in the operation range, the gas pressure must be increased by 0.05 Mpa.
Starting Page	589
Ending Page	591
File Size	211849
Page Count	3
File Format	PDF
ISBN	0780335317
ISSN	1089084X
DOI	10.1109/ELINSL.1996.549414
Language	English
Publisher	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Publisher Date	1996-06-16
Publisher Place	Canada
Access Restriction	Subscribed
Rights Holder	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Subject Keyword	Sulfur hexafluoride Electric breakdown Gas insulation Power transformer insulation Dielectrics and electrical insulation Insulation testing Cable insulation Frequency Temperature sensors Copper
Content Type	Text
Resource Type	Article

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Electric breakdown behaviour of SF/sub 6/ at lower pressure

AC breakdown strength of N/sub 2/, SF/sub 6/ and a mixture of N/sub 2/+SF/sub 6/ containing a small amount of SF/sub 6/

Defect sensibility of N/sub 2/-SF/sub 6/ gas mixtures with equal dielectric strength

Analysis of prebreakdown and breakdown of SF/sub 6//N/sub 2/ mixtures in non-uniform gaps for very fast transient voltages

SF/sub 6/ insulation and its application to HV equipment

Breakdown characteristics of CO/sub 2/ and N/sub 2/ containing SF/sub 6/

Breakdown behavior of SF/sub 6/ gas-insulated systems at low temperature

Voltage-time characteristics of SF/sub 6/ and SF/sub 6/-N/sub 2/ under lightning and steep-fronted impulses

Effect of bubbles on breakdown strengths of perfluorocarbon liquid and the liquid with dissolved SF/sub 6/

The influence of SF/sub 6/ and SF/sub 6//N/sub 2/ gas pressure to the breakdown performance of polyester film

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