发电厂内四极开关的应用探讨  

Application Discussion of Four-pole Switch in Power Plant

作　　者：顾春芳 叶艳 李海疆 

机构地区：[1]中国联合工程公司,浙江杭州310022

出　　处：《现代建筑电气》2014年第6期18-19,51,共3页Modern Architecture Electric

摘　　要：讨论了发电厂内柴油发电机系统和UPS系统中四极开关的应用情况。分析了柴油发电机系统不应设四极开关的原因。UPS系统是否选用四极开关要区别对待。举例说明了IT系统中的过流开关应为四极开关。The paper discussed the application of four-pole switch of diesel generator system and UPS system in power plant. The reasons that the diesel generator did not use the four-pole switch, were analyzed. Whether we used the four-pole switch depended on the specific situations in UPS system. For example, the over current switch should be the four-pole switch in IT system.

关 键 词：发电厂 四极开关 电气隔离 接地制式 

分 类 号：TM564[电气工程—电器]