摘要
10k V配电网小电流接地系统馈电线路单相接地故障隔离和定位解决方案,是近30年来国内外行业专家研究的重点,特别是消弧线圈接地系统单相接地故障隔离和定位解决方案一直是国内外研究的焦点。本文结合国内10k V配电网建设的特色要求,提出了一种基于直流注入法的新型小电流接地故障隔离和定位的解决方案,方案研究结果表明该方案能够自动隔离和定位故障点,能够可靠解决10k V全馈电线路小电流接地故障隔离和定位问题,能够提高配电网接地故障处理的可靠性、快速自愈性,也能够满足我国配电网建设的实用化要求。
10kV distribution network in small current ground systematically feed line single-phase grounding fault isolation and location solution is nearly 30 years the focus of domestic and international industry experts to study, especially the grounding system single-phase grounding fault isolation and location solution is always the focus of the research at home and abroad arc suppression coil extinction. Combined with the characteristics of domestic 10kV distribution network construction, put forward a based on DC injection method of a new type of small current grounding fault isolation and location of online solutions and scheme research results show that the scheme can automatic isolation and locate the fault point, can reliably solve 10kV complete feed line in small current grounding fault isolation and location problem, can improve the distribution network earthing fault processing reliability, fast healing, is also able to meet the practical requirements of the distribution network construction of our country.
出处
《电气技术》
2016年第1期22-26,32,共6页
Electrical Engineering
关键词
直流注入法
配电变压器
接地故障
故障处理
DC injection method
distribution transformer
ground fault
fault treatment
