摘要
介绍了用于中性点直接接地和非直接接地交流电力系统的金属氧化物避雷器(MOA)的选择方法。以GB11032-2000为基础,结合安装点自然条件和系统条件(如当地环境条件、安装点的工频过电压、持续运行电压、操作通流能力、标称放电电流、污秽耐受能力等),合理地选择MOA的保护特性和运行特性,以期取得良好的技术经济效益。
The selection method of metal oxide lightning attester （MOA） used in neutral directly grounding and un-directly grounding AC power system was introduced. Based on GB11032-2000, and combined with the natural condition and system condition at installation site （such as local ambient conditions, power frequency over- voltage, continued operation voltage, discharge current capacity, nominal discharge current and ability of anti-pollution at installation site）, the protection and operation characteristics of MOA should be selected reasonably in order to get good technical and economic benefits.
出处
《电力设备》
2005年第8期4-8,共5页
Electrical Equipment
关键词
交流电力系统
金属氧化物避雷器
接地方式
保护特性
运行特性
AC power system
metal oxide attester
grounding mode
protection characteristic
operation characteristic
