Electrical breakdown voltage of transformer oil with gas bubbles

被引：0
|
作者：
V. A. Panov
Y. M. Kulikov
E. E. Son
A. S. Tyuftyaev
M. Kh. Gadzhiev
P. L. Akimov
机构：
[1] State University,Moscow Institute of Physics and Technology
[2] Russian Academy of Sciences,Joint Institute for High Temperatures
来源：
High Temperature | 2014年 / 52卷
关键词：
Breakdown Voltage; Electrical Breakdown; Sulfur Hexafluoride; Bubble Generator; Recovery Mode;
D O I：
暂无
中图分类号：
学科分类号：
摘要：
Electrical breakdown strength of liquid-gas micro bubble mixtures of transformer oil with sulfur hexafluoride and air for the case of quasi homogeneous gas inclusions distribution and 10% volumetric gas content was experimentally investigated. DC voltage up to 140 kV was applied to a 8 mm gap between hemispherical electrodes. It is shown that transformer oil bubbled with air leads to threshold breakdown voltage decrease by 34% and 19% when bubbled with sulfur hexafluoride. The stabilization effect of sulfur hexafluoride micro bubbles on the value of threshold breakdown voltage is observed.
引用
收藏
页码：770 / 773
页数：3
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