EXTENDED CORONA STABILIZATION IN SF6/FREON MIXTURES

被引:9
作者
CHALMERS, ID [1 ]
QIU, Y [1 ]
SUN, A [1 ]
XU, B [1 ]
机构
[1] XIAN JIAOTONG UNIV,DEPT ELECT ENGN,XIAN,PEOPLES R CHINA
关键词
ELECTRIC CABLES - Gas Filled - FREONS;
D O I
10.1088/0022-3727/18/8/004
中图分类号
O59 [应用物理学];
学科分类号
摘要
Some results are reported of static and impulse corona onset and breakdown voltage measurements in a 10 mm point-plane gap in SF//6 mixtures containing 0. 5% and 1% by volume of Freon 113. It is found that the corona inception voltage in the mixture is higher than for pure SF//6 over the pressure range investigated (up to 4 bar) and that the corona stabilization peak is greatly extended. Measurements of the minimum impulse breakdown voltage have shown that the improved stabilization is associated with an increase in the leader propagation voltage in such mixtures. The results are of significance in connection with particle-triggered breakdown in commercial compressed-gas-insulated cables and substation equipment.
引用
收藏
页码:L107 / L112
页数:6
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