Analysis on multiple outgoing lines trip of the substation caused by cable failure

DUAN Jianjia; WANG Haiyue; YUE Yishi; HUANG Fuyong; YOU Kai

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Analysis on multiple outgoing lines trip of the substation caused by cable failure

更新时间：2025-11-18

- Analysis on multiple outgoing lines trip of the substation caused by cable failure
- Vol. 36, Issue 5, Pages: 61-64(2016)
- 作者机构：
  
  1. 国网湖南省电力公司电力科学研究院
  2. 国网湖南省电力公司
- 作者简介：
- 基金信息：
- DOI：
  CLC： TM63
- Published：2016
- 稿件说明：
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[1]段建家,王海跃,岳一石,黄福勇,由凯.电缆故障导致变电站多条出线跳闸原因分析[J].湖南电力,2016,36(05):61-64.

DUAN Jianjia, WANG Haiyue, YUE Yishi, et al. Analysis on multiple outgoing lines trip of the substation caused by cable failure[J]. 2016, 36(5): 61-64.
[1]段建家,王海跃,岳一石,黄福勇,由凯.电缆故障导致变电站多条出线跳闸原因分析[J].湖南电力,2016,36(05):61-64. DOI：

DUAN Jianjia, WANG Haiyue, YUE Yishi, et al. Analysis on multiple outgoing lines trip of the substation caused by cable failure[J]. 2016, 36(5): 61-64. DOI：

摘要

文中分析某220 kV变电站近区110 kV电缆终端运行中击穿接地故障和变电站3条220 kV出线跳闸事故

指出电缆终端应力锥在安装过程中损伤了主绝缘

绝缘材料在长期局部放电作用下发生劣化是发生击穿的原因。电缆故障后

因蓄电池组存在开路导致直流Ⅰ段母线失压

从而导致线路跳闸。最后针对跳闸原因提出了解决措施和建议。

Abstract

The paper analyzes an 110 kV cable terminal breakdown grounding fault near a 220 kV substation

and trip fault of three outgoing transmission lines of 220 kV substation

point out that the main insulation of the cable is damaged by the installing of the able terminal stress cone using the disintegration check and the insulating materials deteriorates caused by the partial discharge

and after the cable failure

the DC section I bus voltage failure caused by the battery group open circuit results in transmission lines trip. Finally the paper puts forward the counter measure and suggestion.

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