Research on breakdown characteristics of oil-paper insulation in compound field at different temperatures

被引：0
|
作者：
Li, L. [1 ]
Chen, M. Y. [2 ]
Zhu, X. C. [1 ]
Gao, Z. W. [1 ]
Zhang, H. D. [1 ]
Li, G. X. [1 ]
Zhang, J. [1 ]
Yu, C. L. [1 ]
Feng, Y. M. [2 ]
机构：
[1] State Grid Heilongjiang Elect Power Co Ltd, Elect Power Res Inst, Harbin 150030, Heilongjiang, Peoples R China
[2] State Grid Heilongjiang Elect Power Co Ltd, Harbin 150090, Heilongjiang, Peoples R China
来源：
2ND INTERNATIONAL CONFERENCE ON NEW MATERIAL AND CHEMICAL INDUSTRY (NMCI2017) | 2018年 / 292卷
关键词：
DC; STRENGTH; AC;
D O I：
10.1088/1757-899X/292/1/012007
中图分类号：
TQ [化学工业];
学科分类号：
0817 ;
摘要：
The breakdown characteristics of oil-paper insulation in AC, DC and compound field at different temperatures were studied. The breakdown mechanism of oil-paper insulation at different temperatures and in AC and DC electric fields was analyzed. The breakdown characteristic mechanisms of the oil-paper insulation in the compound field at different temperatures were obtained: the dielectric strength of oil-paper compound insulation is changed gradually from dependence on oil dielectric strength to dependence on paperboard dielectric strength at low temperature. The dielectric strength of oil-paper compound insulation is always related to the oil dielectric strength closely at high temperature with decrease of AC content.
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页数：7
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