开合并联电抗器试验回路暂态电压计算及避雷器选用策略  

Transient Voltage Calculation and Arrester Selection Strategy of Shunt Reactors Switching Test Circuit

作　　者：孙海波[1] 郑伟[1] 谢瑞涛[1] 黄超[1] 姚斯立[1] SUN Haibo;ZHENG Wei;XIE Ruitao;HUANG Chao;YAO Sili(Xi＇an High Voltage Apparatus Research Institute Co.,Ltd.,Xi＇an 710077,China)

机构地区：[1]西安高压电器研究院有限责任公司,西安710077

出　　处：《电瓷避雷器》2018年第5期89-92,98,共5页Insulators and Surge Arresters

摘　　要：高压交流断路器开合并联电抗器试验是其重要的型式试验项目之一,开合并联电抗器试验过程中断路器断口间将承受很高的截流过电压和复燃过电压,同时负载侧电抗器两端也会承受很高的过电压。本文在分析国家标准和IEC标准的基础上,讨论了并联电抗器开合过程中首开极的截流过电压和复燃过电压评估与计算方法,得出对试验回路电源侧一次主设备和负载侧电抗器的绝缘配合应以开合过程中出现的复燃过电压为参考依据的结论,并讨论了电源侧和负载侧避雷器选用策略。The shunt reactors switching test is an important type test of high voltage AC circuit breaker. In the process of switching shunt reactor the circuit breaker interrupter will suffer a high chopping overvoltage or re-ignition overvoltage,and both ends of the reactor at the load-side will also bear a high over voltage. On the basis of the analysis of the national and IEC standards,the method of evaluation and calculation of the chopping overvoltage and re-ignition overvoltage for first-pole-to-clear in switching shunt reactor is discussed. It is concluded that the insulation coordination of the primary facility and load-side reactor of the test circuit shall be based on the re-ignition overvoltage during the switching process. Based on the conclusion,the selection strategy of arresters on power supply side and load side is discussed.

关 键 词：并联电抗器 试验回路 截流过电压 复燃过电压 避雷器 

分 类 号：TM472[电气工程—电器]