四川电力技术
四川電力技術
사천전력기술
SICHUAN ELECTRIC POWER TECHNOLOGY
2014年
6期
20-23
,共4页
绝缘导线%耐雷水平%建弧率%灼烧路径%防雷措施
絕緣導線%耐雷水平%建弧率%灼燒路徑%防雷措施
절연도선%내뢰수평%건호솔%작소로경%방뢰조시
insulated conductor%lightning withstanding level%arc over rate%burning path%protection measures against light-ning
架空绝缘导线在配电网中应用广泛且已成为主流。但在其实际运行中，雷击绝缘导线后断线概率较高，因此，探究行之有效的绝缘线防雷措施对促进配电网的健康发展具有非常重要的意义。通过对所在单位2010—2013年10 kV配电网线路雷击跳闸次数进行统计分析，印证了采用绝缘子改造、变电站改用中性点经消弧线圈接地运行方式以及在绝缘导线上加装防雷金具三种方式对架空绝缘导线防雷的有效性，所提措施具有有效的推广实用价值。
架空絕緣導線在配電網中應用廣汎且已成為主流。但在其實際運行中，雷擊絕緣導線後斷線概率較高，因此，探究行之有效的絕緣線防雷措施對促進配電網的健康髮展具有非常重要的意義。通過對所在單位2010—2013年10 kV配電網線路雷擊跳閘次數進行統計分析，印證瞭採用絕緣子改造、變電站改用中性點經消弧線圈接地運行方式以及在絕緣導線上加裝防雷金具三種方式對架空絕緣導線防雷的有效性，所提措施具有有效的推廣實用價值。
가공절연도선재배전망중응용엄범차이성위주류。단재기실제운행중，뢰격절연도선후단선개솔교고，인차，탐구행지유효적절연선방뢰조시대촉진배전망적건강발전구유비상중요적의의。통과대소재단위2010—2013년10 kV배전망선로뢰격도갑차수진행통계분석，인증료채용절연자개조、변전참개용중성점경소호선권접지운행방식이급재절연도선상가장방뢰금구삼충방식대가공절연도선방뢰적유효성，소제조시구유유효적추엄실용개치。
Overhead insulated conductors are widely applied in the distribution network and has become the mainstream.But in the actual operation, the breakage of insulated conductors caused by lightning stroke has a higher probability.Therefore, to explore the effective protection measures against lightning for insulated wires has a very important significance for promoting the healthy development of the distribution network.A statistical analysis is carried out for the times of lightning trip-out of 10 kV distribution network from 2010 to 2013.The effectiveness of three ways are confirmed for the lighting protection, that is, transforming the insulators, using neutral ground via arc extinguishing coil in substation and mounting lightning fittings in insu-lating conductors.The proposed protection measures against lightning for overhead insulated conductors have the effective practical value.
