| 诊断金属氧化物非线性电阻(MOV)不均匀性的一种方法 |
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| 引用本文： | 梁毓锦.诊断金属氧化物非线性电阻(MOV)不均匀性的一种方法[J].华中科技大学学报(自然科学版),1992(Z1). |
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| 作者姓名： | 梁毓锦 |
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| 作者单位： | 华中理工大学电力工程系 |
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| 基金项目： | 国家自然科学基金资助项目 |
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| 摘 要： | 为了寻求合适的MOV质量控制方法,研究了直流电压作用下MOV内的电流分布与其结构不均匀性的关系.试验表明,直流电压作用下MOV内的电流分布对其结构不均匀比较敏感,而且与MOV之通流容量有种内在联系.
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| 关 键 词： | 金属氧化物非线性电阻 均匀性 电流分布 缺陷 筛选试验 |
Diagnosis of Inhomogeneity of Metal Oxide Varistors(MOV) |
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| Liang Yujin.Diagnosis of Inhomogeneity of Metal Oxide Varistors(MOV)[J].JOURNAL OF HUAZHONG UNIVERSITY OF SCIENCE AND TECHNOLOGY.NATURE SCIENCE,1992(Z1). |
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| Authors: | Liang Yujin |
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| Institution: | Liang Yujin |
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| Abstract: | In order to find a satisfactory method for MOV quality control,the author has investigated the relation between the current distribution in MOV under DC voltage and its inhomo-geneity. Experimental results show that the distribution of DC current in MOV is sensitive to its inhomogeneity and bears a certain relation with its discharge capacity. This method can be used in engineering practice provided the sampling electrodes are properly designed and a multi-channel real-time data acquisition system is used. |
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| Keywords: | metal oxide varistors uniformity current distribution defect weed-out test |
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