广西水利水电Issue(2)：74-75,81,3.
直流系统两点接地故障分析及预防
Two-point grounding fault analysis and prevention of DC system
黄丽娟1
作者信息
- 1. 广西水利电力职业技术学院，广西 南宁 530023
- 折叠
摘要
Abstract
Neglect of one-point grounding phenomenon of DC system may lead to serious fault of two-point ground⁃ing. An introduction was made on the process,causes and treatment of a heavy gas protection misoperation accident of main transformer,based on which the author discussed the harm of two-point grounding of DC system which had led to that accident,and put forward corresponding prevention measures. In case of grounding fault of DC system, it shall be to prohibited to operate in secondary circuit,and the device or circuit to be connected into shall be sub⁃ject to careful insulation inspection.关键词
直流系统/两点接地/继电保护/误动Key words
DC system/two-point grounding/relay protection/misoperation分类
信息技术与安全科学引用本文复制引用
黄丽娟..直流系统两点接地故障分析及预防[J].广西水利水电,2013,(2):74-75,81,3.
