期刊论文

Single-phase Installation Method of Parallel Gap in 10kV Distribution Line

Yang, X.

中文

电网技术

1000-3673

2020

44

8

3164-3171

10.13335/j.1000-3673.pst.2019.1728

国家自然科学基金青年基金项目（51407013）~~；

本校为第一且通讯机构

针对10 kV配电线路传统的并联间隙的三相安装方式使线路耐雷水平降低,跳闸率提高的问题,提出了并联间隙的单相安装方式。利用ATP-EMTP软件建立了10kV配电线路感应雷过电压和直击雷过电压仿真模型,分析了雷直击塔顶和感应雷过电压的情况下,并联间隙的单相安装方式对10 kV配电线路耐雷水平及雷击跳闸率的影响。仿真结果表明,并联间隙的单相安装方式在感应雷过电压和反击下的耐雷水平分别最大提高了162.5%、101.2%。在感应雷过电压下,并联间隙的单相安装方式可显著降低配电线路的雷击跳闸率,最高可降低48.08%。最后,针对雷击故障的不同特点给出了并联间隙单相安装方式下间隙距离的匹配方案。并联间...

Aiming at the problem that the traditional parallel gap three-phase installation method of 10kV distribution line reduces line lightning withstand level and increases lightning trip-out rate, a single-phase installation method of parallel gap is proposed. A simulation model of induced and direct lightning overvoltage of 10kV distribution line was established with ATP-EMTP software. The effects of single-phase installation method on the lightning withstand level and lightning trip-out rate of 10kV distribution lines were analyzed for lightning s...