Electrical Breakdown Voltage of Transformer Oil with Gas Bubbles

被引：26
|
作者：
Panov, V. A. [1 ]
Kulikov, Y. M. [1 ]
Son, E. E. [1 ,2 ]
Tyuftyaev, A. S. [2 ]
Gadzhiev, M. Kh. [2 ]
Akimov, P. L. [2 ]
机构：
[1] State Univ, Moscow Inst Phys & Technol, Dolgoprudnyi, Moscow Oblast, Russia
[2] Russian Acad Sci, Joint Inst High Tempratures, Moscow, Russia
来源：
HIGH TEMPERATURE | 2014年 / 52卷 / 05期
基金：
俄罗斯科学基金会;
关键词：
WAVES; WATER;
D O I：
10.1134/S0018151X14050228
中图分类号：
O59 [应用物理学];
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：4
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