摘要
随着产业结构调整步伐的加快,电力设备需求量逐年增加,气体绝缘金属封闭开关设备增量迅猛。隔离开关作为其主要单元,运行的长期性和稳定性尤为关键,其中瞬态过电压对隔离开关的影响得到了越来越多的关注。重点介绍了瞬态过电压的种类,其各自的产生原理、主要特点和典型危害。以800k V GIS隔离开关为典型实例,介绍了为耐受瞬态过电压而进行的特殊设计,并通过试验对该设计结构进行考核,试验结果表明,特殊设计达到了预期的效果。另外还提出了一些其他的预防措施和方法。
The quickening pace of industrial structure adjustment, the demand of electric power equipment increases year by year, gas insulated metal enclosed switchgear increment rapid. Disconnector as the main unit, it is important to run long-term and stability, in which the transient overvoltage effect on disconnector got more and more attention. This paper mainly introduces the types of transient overvoltage, their respective principles, main characteristics and typical hazards. In a 800 kV GIS disconnector as a typical example, this paper introduces the transient overvoltage for tolerance of special design, and through the test to examine the structure of the design, the test results show that the special design achieved the expected result. Also put forward some prevention measures~ and methods of the other.
出处
《电气开关》
2015年第3期1-4,共4页
Electric Switchgear
