配电网特快速开关设计及特性分析  

Design and Characteristic Analysis of Extra Fast Switching in Distribution Networks

作　　者：吴镇海 WU Zhen-hai(Yuecheng Branch,Shaoxing Jianyuan Electric Power Group Co.Ltd.,Shaoxing 312000,China)

机构地区：[1]绍兴建元电力集团有限公司越城分公司,浙江绍兴312000

出　　处：《电气开关》2023年第6期13-15,19,共4页Electric Switchgear

摘　　要：随着经济的发展与社会的进步,各行各业用电量急剧增加,由此导致了配电变压器重载、过载运行的情况频繁发生,进而导致了配电网电压过低和停电现象次数的增加,给电力用户带来了一定的影响,传统开关控制能力和保护能力不足的问题愈加突出。本文给出了一种配电网特快速开关方案,特快速开关的性能主要取决于气体间隙开关的触发性能,并搭建了测试平台。测试结果表明,气体间隙开关触发导通过程分为两个阶段,即预击穿和主间隙导通,空气与六氟化硫气体开关的特性存在显著差异。本文的研究成果对于配电网快速控制技术的发展具有重要意义。With the economic development and social progress,the electricity consumption of various industries has increased dramatically,which has led to the frequent occurrence of heavy load and overload operation of distribution transformers,which in turn has led to the increase in the number of low voltage and power outages in the distribution network,bringing certain impact to the power users and increasing the problem of insufficient control and protection capability of traditional switches.In this paper,an extra fast switching scheme for the distribution network is presen⁃ted.The performance of the extra fast switching depends mainly on the triggering performance of the gas gap switch,and a test platform is built.The test results show that the gas gap switch triggering conduction process is divided into two stages,i.e.,pre⁃breakdown and main gap conduction,and there are significant differences in the characteristics of air and sulfur hexafluoride gas switches.The research results of this paper are of great significance to the develop⁃ment of fast control technology for distribution networks.

关 键 词：配电网 特快速开关 间隙开关 

分 类 号：TM72[电气工程—电力系统及自动化]