Please use this identifier to cite or link to this item: http://hdl.handle.net/10397/62691
Title: The combined effect of moisture, temperature and conducting particles on the discharge behaviour of Sulphur Hexafluoride
Authors: Peng, DH
Li, ZY
Macalpine, JMK
Keywords: Corona
Electrical breakdown
Sulphur hexaflouride
Humidity
Issue Date: 2001
Publisher: Hong Kong Institution of Engineers
Source: HKIE transactions, 2001, v. 8, no. 2, p. 55-57 How to cite?
Journal: HKIE transactions 
Abstract: Measurements have been made of dc corona onset and breakdown voltages for both positive and negative point/plane electrode systems in compressed sulphur hexafluoride in the presence of water vapour. The presence of moisture lowered the onset voltages and raised the breakdown voltages significantly.
The effect of moisture on flashover voltages in the presence of metallic particles was also investigated and the results showed that there was little effect except when moisture was likely to be condensing of the spacer surface; If the moisture froze there was again little effect.
The reduction in flashover voltage due to moisture was independent of and in addition to the effect of the presence of a metallic particle.
URI: http://hdl.handle.net/10397/62691
ISSN: 1023-697X
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