热双金属温度变化对延时特性的影响  

Analysis of Bimetal Element Temperature Variation Influence on Delay Characteristics

作　　者：杨宇 江玉坤 司莺歌 

机构地区：[1]浙江正泰电器股份有限公司,浙江乐清325603

出　　处：《电器与能效管理技术》2015年第4期34-36,共3页Electrical & Energy Management Technology

摘　　要：小型断路器的延时脱扣特性是断路器实现线路过载保护的一个关键特性。热双金属元件是实现延时脱扣特性运用最广泛的一种元件。介绍了热双金属元件温度变化对热变形位移和推力的影响,同时分析了温度范围、焊接质量等其他因素对延时脱扣特性的影响。Delay tripping characteristics of low voltage miniature circuit breaker is a key characteristic to realize the line overload protection of circuit breaker. Bimetallic element is a most widely used element to realize delay tripping characteristics. This paper introduced the bimetal element temperature variation＇ s influence on the thermal deformation＇ s displacement and force, also analyzed the influence of the temperature range, the welding quality and other factors on the time delay tripping characteristic.

关 键 词：双金属元件 延时特性 稳定温升 

分 类 号：TM503.3[电气工程—电器]