| 低气压下染污覆冰表面和冰凌间隙的直流电弧特性 |
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| 引用本文： | 胡建林,孙才新,蒋兴良,李毅,张志劲.低气压下染污覆冰表面和冰凌间隙的直流电弧特性[J].高电压技术,2010,36(3):609-615. |
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| 作者姓名： | 胡建林 孙才新 蒋兴良 李毅 张志劲 |
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| 作者单位： | 1. 重庆大学输配电装备及系统安全与新技术国家重点实验室,重庆,400030
2. 四川省德阳电业局,德阳,618000 |
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| 基金项目： | 国家重点基础研究发展计划(973计划)(2009CB724501)~~ |
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| 摘 要： | 低气压下染污覆冰表面沿面电弧和冰凌空气间隙电弧伏安特性是研究高海拔、污秽、覆冰综合环境中绝缘子放电机理和放电模型的基础,为此,利用三角平板玻璃先染污后覆冰和冰凌间隙模型在低温低气压实验室分别试验研究了低气压下覆冰沿面电弧和冰凌间隙电弧直流伏安特性。结果表明:染污覆冰表面沿面电弧和冰凌间隙电弧的伏安特性E-I关系呈负幂函数,相同条件下,正极性沿面电弧电压高于负极性,而空气间隙电弧伏安特性受极性影响很小;沿面电弧和空气间隙电弧直流伏安特性均随着气压降低而下降,且空气间隙电弧受气压影响较沿面电弧大。研究结果为建立低气压下染污覆冰绝缘子串直流放电模型提供了基础。
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| 关 键 词： | 低气压 覆冰 污秽 沿面电弧 冰凌间隙电弧 伏安特性 直流 |
Characteristics of Surface DC Arc on Pre-polluted Ice and Icicle-icicle Air Gap DC Arc Under Low Air Pressure |
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| HU Jian-lin
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SUN Cai-xin
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JIANG Xing-liang
,
LI Yi
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ZHANG Zhi-jin.Characteristics of Surface DC Arc on Pre-polluted Ice and Icicle-icicle Air Gap DC Arc Under Low Air Pressure[J].High Voltage Engineering,2010,36(3):609-615. |
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| Authors: | HU Jian-lin SUN Cai-xin JIANG Xing-liang LI Yi ZHANG Zhi-jin |
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| Affiliation: | 1.State Key Laboratory of Power Transmission Equipment & System Security and New Technology;Chongqing University;Chongqing 400030;China;2.Deyang Electric Power Bureau;Sichuan Province;Deyang 618000;China |
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| Abstract: | Characteristics of surface DC arc on pre-polluted ice and icicle-icicle air gap DC arc under low air pressure is fundamental to the study on the discharge mechanism and the model of insulators under the combined conditions of high altitude,pollution and icing.We analyzed E-I characteristics of surface DC arc on pre-polluted plane triangular ice sample and icicle-icicle air gap DC arc under low air pressure in the low-temperature and low-pressure climate chamber.The results show that,the E-I curves of surfac... |
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| Keywords: | low air pressure icing pollution surface arc icicle-icicle air gap arc E-I characteristics DC |
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