MOV通流能力衡量优化方法  

Optimization of MOV Discharge Current Capacity Measurement

作　　者：王成芳[1,2] 陈华[1] 刘冲[1] 余佥贤[1] 王昊[2] 

机构地区：[1]西藏自治区气象局,拉萨850000 [2]中国气象局气溶胶-云-降水重点开放实验室,南京210044

出　　处：《气象科技》2016年第5期828-833,共6页Meteorological Science and Technology

基　　金：国家自然科学基金(41165011);2015年江苏省大学生科创基金(201513982004Y)共同资助

摘　　要：MOV作为压敏型电涌保护器(SPD)的主要防雷元件,依据IEC 61643的规定,其通流能力是反映SPD防雷性能的重要指标,故通常用标称(最大)放电电流来衡量MOV通流能力,但这并不意味着MOV的标称放电电流就是衡量MOV的通流能力最佳参数,为了更为准确地研究SPD的防雷性能,需要对MOV通流能力的衡量方法进行进一步优化分析。通过详细分析通流能力的本质含义,引入能量资源(安秒资源)的概念,区分了MOV的标称(最大)放电电流与通流能力的关系,结果显示:利用MOV的能量资源(安秒资源)来体现器件的通流性能,更符合MOV的特征,优化后的衡量方法对于SPD防雷性能的精确定标具有重要的参考价值。MOV is the core component of the SPD.According to the regulations of IEC 61643,the discharge current capacity of MOV is an important indicator of SPD＇s anti-thundering capability.Usually,the maximum discharge current of MOV is considered as its discharge current capacity.But this does not mean that the maximum discharge current of MOV represents the discharge current capacity of MOV.In order to further and accurately analyze SPD＇s anti-thundering capability,it is necessary for researchers to upgrade the measurement of the discharge current capacity of MOV.By studying the attributes of discharge current capacity and introducing the implication of A-S Resources,the differences between the maximum discharge current and the discharge current capacity are distinguished.The discharge current capacity of MOV can be better measured by using A-S Resource theory.The optimized method can evaluate SPD anti-thundering capability more accurately.

关 键 词：MOV 电流 通流 安秒资源 SPD 

分 类 号：TM862[电气工程—高电压与绝缘技术]