快速真空断路器在限流技术中的应用  

Application of fast vacuum breaker on current limiting technology

作　　者：黄永宁[1] 艾绍贵[2] 李艳军 樊益平[1] 张爽[1] 

机构地区：[1]国网宁夏电力公司电力科学研究院,宁夏银川750011 [2]国网宁夏电力公司,宁夏银川750001 [3]安徽伊格瑞德电气设备有限公司,安徽合肥231131

出　　处：《宁夏电力》2014年第6期18-23,共6页Ningxia Electric Power

基　　金：国家电网公司科技项目(SG-ND-DKY-JYGLBKJ[2011]176号)

摘　　要：针对由于电网规模和单机容量的不断扩大,造成电网短路电流越来越大的问题,采用快速真空断路器技术,快速投入限流电抗器对短路电流进行深度限制,使得电网短路电流大幅度减小。经电网中压系统大量应用和330 k V线路安装考核验证,结果表明:采用快速真空断路器技术限制电网短路电流,避免了常规限流技术造成的较大运行损耗,实现了电网限流装置结构轻便、造价低廉、运行可靠、维护方便的目标。Aiming at the problem of owing to power grid scale and single unit generating power capacity continuous expanding,causing power grid short circuit current augmenting,By using fast vacuum breaker technology,fast switches the current-limiting reactor on to limit short circuit current deeply,reduces power grid short circuit current. Through the wide application of power grid intermediate voltage system and verification of 330 kV line installation,the results show that using fast vacuum breaker technology to limit short circuit current of power grid can avoid larger operating loss bringing of the conventional current limiting technology,realize the aim of portable structure,low cost,reliable operation for current limiting device of power grid.

关 键 词：快速真空断路器 短路电流深度限制 快速涡流驱动 短路电流过零开断 故障快速识别 

分 类 号：TM561.2[电气工程—电器]