Initiation and Propagation of the Negative Leader in Transformer Oil under Impulse Voltage

被引：12
|
作者：
Torshin, Yu. V. [1 ]
机构：
[1] All Russian Electrotech Inst, Fed Sci Ctr, Moscow 111250, Russia
来源：
IEEE TRANSACTIONS ON DIELECTRICS AND ELECTRICAL INSULATION | 2009年 / 16卷 / 06期
关键词：
Negative lightning impulse; transformer oil; Schlieren photographs; image converter cameras; still and streak photographs; discharge zone; shock microwaves; breakdown voltage;
D O I：
10.1109/TDEI.2009.5361572
中图分类号：
TM [电工技术]; TN [电子技术、通信技术];
学科分类号：
0808 ; 0809 ;
摘要：
The complex experimental studies of the discharge mechanism in transformer oil under negative polarity (NP) of the lightning impulse were carried out using alternative diagnostic methods. Novel data concerning propagation mechanism and parameters of the predischarge channels were obtained. The results indicate that oil breakdown both under negative and positive polarities are similar in a number of properties to the breakdown in the long air gaps.
引用
收藏
页码：1536 / 1542
页数：7
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