NM6系列塑料外壳式断路器创新设计  

Innovative Design of NM6 Series Moulded Case Circuit Breaker

作　　者：李俐 郭德鑫 

机构地区：[1]浙江正泰电器股份有限公司,浙江温州325603

出　　处：《电工电气》2009年第4期45-47,64,共4页Electrotechnics Electric

基　　金：发明专利(200410069595.2;2006100119709.6)

摘　　要：介绍了NM6系列塑料外壳式断路器自主创新要点,采用了密封式灭弧室结构,可改善分断能力;在灭弧室出气孔前设计了一个密封排气通道,可确保实现零飞弧。还采用了热保护可调结构,附件插拔式模块化结构,瞬时单极动作磁保护系统等。该产品具有隔离功能,可确保触头断开指示的机械可靠性,无泄漏电流。在使用时,其上端可以不用隔离器,方便客户检修电路。Introduction was made to elements of independent innovation for NM6 series moulded case circuit breaker, adopting sealed arc extinguish chamber structure to improve breaking-off capacity and designing a sealed exhaust channel in front of arc extinguish chamber hole to assure zero arc. There also were thermal protection adjustable structure, accessory plugpush type modular structure, instantaneous single pole action magnetic protection etc. The product is with isolation function, being able to ensure mechanical reliability of contacts breaking-off indication and without leakage current. The oroduct is isolator-free on its ton. so it＇s convenient for users＇ circurit maintenance.

关 键 词：塑料外壳式断路器 密封式灭弧室 零飞弧 热保护可调 插拔式模块化结构 隔离功能 

分 类 号：TM561[电气工程—电器]