灵宝背靠背工程单断路器保护研究  

Study on Protection of Single Breaker in Lingbao BTB Project

作　　者：韩伟[1] 聂定珍[1] 

机构地区：[1]北京网联直流输电系统工程有限公司,北京100088

出　　处：《高电压技术》2005年第8期54-55,80,共3页High Voltage Engineering

摘　　要：通过模拟研究灵宝换流站逆变侧单断路器的偷跳,得出结论:灵宝换流站的交流断路器若无断路器预跳指示信号却在换流站单断路器情况下偷跳,则换流阀的绝缘裕度不足,不能保证其安全运行,甚至可能导致阀避雷器爆炸,故应为灵宝换流站的交流断路器提供断路器预跳指示信号。The single breaker＇s trip without control/protection signal at inverter Slde in Lingbao converter statiom is simulated and studied, and the result is as following： if there is no early make signal from AC breaker but the single breakers trip occurs at inverter side that indicates the valve＇s insulation margin is not big enough and hence the operation safety can＇t be ensured, even it is possible to cause explosion of valve arrester. Therefore, such prior signals must be arranged to the AC breaker.

关 键 词：断路器预跳指示信号 阀避雷器 单断路器保护 

分 类 号：TM77[电气工程—电力系统及自动化]