126kV真空断路器操作过电压测试  

Switching Overvoltage Testing of 126 kV Vacuum Circuit Breaker

作　　者：全伟[1] 孙进[2] 李鹏[3] 杨彦冬[1] 时振堂[2] QUAN Wei SUN Jin LI Peng YANG Yandong SHI Zhentang(SINOPEC Xibei Oil-field Branch, Urumqi 830011, China SINOPEC Fushun Research Institute of Petroleum ＆ Petrochemical, Liaoning Fushun 113001, China Xi＇an High Voltage Apparatus Research Institute Co., Ltd., Xi＇an 710077, China)

机构地区：[1]中国石化西北油田分公司,乌鲁木齐830011 [2]中国石化抚顺石油化工研究院,辽宁抚顺113001 [3]西安高压电器研究院有限责任公司,西安710077

出　　处：《高压电器》2017年第3期126-131,共6页High Voltage Apparatus

基　　金：中国石油化工集团公司资助项目(314112)~~

摘　　要：文中介绍了126 kV单断口真空断路器的操作过电压现场测试结果。首先,确定断路器应用场所并设计了过电压测试方案;然后,测试真空断路器和SF6断路器切合变压器的操作过电压并进行对比;最后,测试真空断路器切合空载线路操作过电压。通过测试,真空断路器和SF6断路器切合变压器的操作过电压水平基本接近,切合空载变压器时无过电压,而带载变压器操作过电压可达1.46倍;真空断路器切合空载变压器的过电压分别可达1.34倍和1.25倍。In this paper, the field operating overvoltage test results of 126 kV single break vacuum circuit breaker are introduced. First, determine the application and design of the circuit breaker overvoltage test scheme; Then, testing and comparing the operating overvoltage of vacuum circuit breaker and SF6 circuit breaker switching transformer; Finally, testing the operating overvohage of vacuum circuit breaker switching no-load line. The research showed that, the VCB and SF6 circuit breaker had similar operating overvoltage, there was no operating overvoltage when switching the no-load transformer, and the overvoltage multiple is 1.46 p.u. when switching the on＇load transformer. The VCB＇s overvohage when switching the transformer are 1.34 p.u. and 1.25 p.u. respectively.

关 键 词：真空断路器 过电压 测试 126kV 

分 类 号：TM561.2[电气工程—电器]