| 绝缘子交流冰闪电压的统计特性分析 |
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| 引用本文： | 蒋一平,蒋兴良,胡建林,张志劲. 绝缘子交流冰闪电压的统计特性分析[J]. 电网技术, 2009, 33(18): 166-170 |
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| 作者姓名： | 蒋一平 蒋兴良 胡建林 张志劲 |
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| 作者单位： | 输配电装备及系统安全与新技术国家重点实验室(重庆大学),重庆市,沙坪坝区,400044;输配电装备及系统安全与新技术国家重点实验室(重庆大学),重庆市,沙坪坝区,400044;输配电装备及系统安全与新技术国家重点实验室(重庆大学),重庆市,沙坪坝区,400044;输配电装备及系统安全与新技术国家重点实验室(重庆大学),重庆市,沙坪坝区,400044 |
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| 摘 要： | 恒压升降法作为人工覆冰试验方法可用于绝缘子覆冰闪络特性的研究。文中以XP-160绝缘子为例,参照IEC60507标准,对该方法的覆冰绝缘子交流试验电压进行了分析,并对IEC60507推荐的恒压升降法的数理统计方法进行了改进,得到了恒压升降法所需的最小有效试验样本数。结果表明,覆冰绝缘子交流闪络电压服从正态分布,改进后的统计方法比IEC60507推荐方法的统计偏差更小,恒压升降法所需试验的最小有效试验样本数为11个。
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| 关 键 词： | 覆冰绝缘子 恒压升降法 统计特性 最小样本数 |
Statistical Characteristic Analysis on AC Flashover Voltage of Ice-Coated Insulator String |
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| JIANG Yi-ping,JIANG Xing-liang,HU Jian-lin,ZHANG Zhi-jin ,Shapingba District,Chongqing ,China). Statistical Characteristic Analysis on AC Flashover Voltage of Ice-Coated Insulator String[J]. Power System Technology, 2009, 33(18): 166-170 |
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| Authors: | JIANG Yi-ping JIANG Xing-liang HU Jian-lin ZHANG Zhi-jin Shapingba District Chongqing China) |
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| Affiliation: | JIANG Yi-ping,JIANG Xing-liang,HU Jian-lin,ZHANG Zhi-jin (State Key Laboratory of Power Transmission Equipment & System Security and New Technology (Chongqing University),Shapingba District,Chongqing 400044,China) |
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| Abstract: | In China and other countries,the up-and-down method recommended by IEC60507 is adopted as an artificial ice-coating experimental method in the research on flashover performance of ice-coated insulators,however the statistical characteristic of such a test method is not given and illustrated. Taking XP-160 insulator for example and referring to IEC60507 standard,the AC testing voltages for ice-coated insulator under the up-and-down method are compared and analyzed,and the mathematical statistics method recom... |
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| Keywords: | ice-coated insulators up-and-down method statistical characteristic number of the least test samples |
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