A Substation DC System Grounding Fault Analysis and Processing

被引：0
|
作者：
Chen Gang [1 ]
Li Zhong [1 ]
Li Ping [1 ]
Liu Lei [1 ]
Wang Miao [1 ]
Pang Yanjun [1 ]
Li Yan [1 ]
机构：
[1] Liaoning Elect Power Co Ltd, Fushun Power Supply Co, State Grid, Shenyang, Peoples R China
来源：
CURRENT DEVELOPMENT OF MECHANICAL ENGINEERING AND ENERGY, PTS 1 AND 2 | 2014年 / 494-495卷
关键词：
substation; DC system; the DC ground fault; fault analysis;
D O I：
10.4028/www.scientific.net/AMM.494-495.1784
中图分类号：
TH [机械、仪表工业];
学科分类号：
0802 ;
摘要：
A 220kV substation DC system ground fault detailed analysis and lookup scheme are proposed in this paper. The ground fault was mainly due to the cold weather as well as equipment wiring unreasonable wear the cable jacket rupture, causing 220kV main transformer cooler control box on the 2nd DC grounding occurred. In addition, through this ground fault finding, also found a DC system insulation monitoring device functional shortcomings and DC circuit loop back problems exist, the paper put forward DC circuit loop back detailed solutions, and the insulation monitoring device of the transformation proposal are proposed.
引用
收藏
页码：1784 / 1786
页数：3
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