高压断路器切除并联电抗器过电压的抑制研究  

Research on Overvoltage Suppression of Switching Shunt Reactor by High Voltage Circuit Breaker

作　　者：陈杳伟 史俊 党德旺 付杰 CHEN Yaowei;SHI Jun;DANG Dewang;FU Jie(Xi'an XD Switchgear Electric Co.,ltd.,Xi'an 710077,China)

机构地区：[1]西安西电开关电气有限公司,西安710077

出　　处：《高压电器》2021年第9期102-108,共7页High Voltage Apparatus

摘　　要：高压断路器切除并联电抗器时会产生较高的过电压,而导致设备故障,危及电网安全运行。文中从开断电抗器产生过电压的原理出发,并结合试验结果分析过电压的区间分类,提出了重燃窗口以及过电压临界点的划分方法,详细分析了选相分闸技术抑制过电压的原理,并通过试验验证其可有效控制过电压在较低水平,从而消除过高的过电压对电力设备的威胁。High voltage circuit breaker can,in case of switching shunt reactor,generate high over voltage,thus causing equipment fault and endangering safe operation of power grid. In this paper,classification method of reignition window and the critical point of overvoltage are proposed on the basis of the principle of generating overvoltage in switching reactor and the duration classification analysis of the over voltage with combination of the test result. The principle of over voltage suppression by phase control technology is analyzed in detail. It is verified by the test that it can effectively control the over voltage to a low level,thus eliminating the threat of excessive over-voltage to the power equipment.

关 键 词：并联电抗器 重燃过电压 重燃窗口 选相控制 

分 类 号：TM561[电气工程—电器] TM47