组合式过电压保护器在防雷方面存在的问题探讨  

Probe on Problems of Combined Overvoltage Protector in Lightning Protection

作　　者：易小飞[1] 康翔[2] 滕金佐 李珊珊 

机构地区：[1]长沙理工大学电气与信息工程学院,湖南长沙410076 [2]湖南农业大学经济学院,湖南长沙410076 [3]山东电力集团公司烟台供电公司,山东烟台265400 [4]西南电力设计院电网分公司,四川成都610021

出　　处：《工矿自动化》2012年第9期87-90,共4页Journal Of Mine Automation

摘　　要：分析了山西阳泉某矿区变电站和湖北某抽水蓄能电站在使用组合式过电压保护器过程中出现的事故;介绍了组合式过电压保护器的原理及工作特性,探讨了组合式过电压保护器存在的问题,指出组合式过电压保护器采用的上下两部分氧化锌元件结构会导致雷电过电压发生时,组合式过电压保护器因该动作时无动作或者自身损坏而引起事故;提出了组合式过电压保护器在使用时的注意事项,即不能采用组合式过电压保护器替代重要防雷设备,应尽量少用组合式过电压保护器对重要设备进行防雷保护。The paper analyzed accidents in application of combined overvoltage protector in a substation in Yangquan mining area of Shanxi province and a pumped storage power station in Hubei province. It introduced principle and working characteristics of combined overvoltage protector, discussed problems of combined overvoltage protector, and pointed out that the structure of upper and lower ZnO elements of combined overvoltage protector could lead combined overvoltage protector no action at acting moment and accidents because of its own damage when lightning overvoltage happens. It also proposed points for attention in application of combined overvoltage protector, namely combined overvoltage protector cannot take the place of important lightning protection device and be used for lightning protection for important device.

关 键 词：变电站 防雷 过电压保护 组合式过电压保护器 氧化锌元件 

分 类 号：TD612.5[矿业工程—矿山机电]