不同产气材料对电弧运动规律影响的实验研究  

Experimental Research on Arc Movement Characteristics of Different Gas Production Materials

作　　者：郭瑾[1] 马强[1] 杨飞[1] 孙志强[1] 王伟宗[1] 李美[1] 

机构地区：[1]西安交通大学电力设备电气绝缘国家重点实验室,陕西西安710049

出　　处：《低压电器》2009年第5期5-7,39,共4页Low Voltage Apparatus

基　　金：国家自然科学基金项目资助(50537050;50525722)

摘　　要：对低压断路器灭弧室内侧壁的非产气材料、迭尔林和尼龙进行了相关的实验,揭示了不同聚合体产气材料对空气电弧运动规律的影响。在电弧向灭弧栅片运动的过程中,聚合体材料受到电弧的烧蚀,灭弧室内充满空气和聚合体蒸汽的混合气体。建立了灭弧室实验模型,给出了大电流电弧的实验线路,并在500A和3000A电流时进行了电弧实验。研究结果表明,灭弧室内压力增大,加速电弧等离子体的运动速度,可有效提高断路器的性能。Aiming at experiments on non-gas production materials, POM and PA used in inner sidewall of low voltage circuit breakers, the influence of different polymer gas production materials on are movement rules was revealed. When arc is moving to the splitters, the polymer was ablated by arc, then the arc chamber was filled with mixture of air and polymer vapour. The experiment model of are - quenching chamber was founded. The circuit for heavy current arc was given, and the arc experiment was done at 500 A and 3 000 A current virtual value. Results show the increase of pressure in arc-quenching chamber can accelerate the movement speed of arc plasma, which can effectively improve the performance of circuit breakers.

关 键 词：灭弧室 聚合体 电弧 

分 类 号：TM561[电气工程—电器] TM501.2