DocumentCode :
1171652
Title :
Dielectricc Strength of Gas Mixtures Comprising SF6, CO, c-C4-F8 and SF6, N2, c-C4F8
Author :
Qiu, Y. ; Kuffel, E.
Author_Institution :
Xi´´an Jiaotong University
Issue :
5
fYear :
1983
fDate :
5/1/1983 12:00:00 AM
Firstpage :
1445
Lastpage :
1451
Abstract :
In a previous paper[8] breakdown strengths of c-C4F8/SF6/CO gas mixtures in various proportions were reported for a 30mm rod-sphere gap under ac and impulse voltages. A mixture of 1% c-C4F8 + 59% SF6 + 40% CO exhibited higher dielectric strength than pure SF6 in the pressure range between 350 and 400 kPa. The present paper compares CO and N2 as a buffer in gas mixtures and extends the studies to a nearly uniform field gap and a highly non-uniform field gap. Additional experiments comfirmed that the use of CO as a buffer in gas mixtures is superior to N2 and that some c-CZF8/SF6/CO gas mixtures have higher dielectric strength and are cheaper than pure SF6.
Keywords :
Breakdown voltage; Chemicals; Dielectric breakdown; Electric breakdown; Electrons; Gas insulation; Gases; Ionization; Stability; Sulfur hexafluoride;
fLanguage :
English
Journal_Title :
Power Apparatus and Systems, IEEE Transactions on
Publisher :
ieee
ISSN :
0018-9510
Type :
jour
DOI :
10.1109/TPAS.1983.318099
Filename :
4112088
Link To Document :
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