电测与仪表2017，Vol.54Issue(3)：125-128,4.
基于配电自动化技术的小电流接地故障区段定位方法
Location method for small current grounding fault section based on distribution automation technology
姜建 1刘家齐 1李燕青 2宋乐2
作者信息
- 1. 杭州供电公司,杭州310000
- 2. 华北电力大学河北保定071003
- 折叠
摘要
Abstract
A method of steady state of a small current grounding line selection is proposed in this paper, which takes full advantage of zero sequence current and zero sequence voltage phase relationship of the fault line and non-fault line after the single-phase grounding fault in distribution network, with the existing distribution automation technology, the novel part of this is to consider the influence of distribution line resistance, as well as consider the zero sequence cur-rent and voltage phase relationship under a load line fault and non-fault line, and detect zero sequence current and voltage phase difference through the feeder automation terminal unit ( FTU ) embedding phase DFT detection algo-rithm.The simulation proves the effectiveness of fault line selection method.关键词
小电流接地/故障定位/FTU/配电自动化/相位检测Key words
small current grounding/fault location/FTU/distribution automation/phase detection分类
信息技术与安全科学引用本文复制引用
姜建,刘家齐,李燕青,宋乐..基于配电自动化技术的小电流接地故障区段定位方法[J].电测与仪表,2017,54(3):125-128,4.
