| 局部放电作用下油浸绝缘纸的微观结构及电气性能 |
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| 引用本文： | 严家明,廖瑞金,杨丽君,孙才新.局部放电作用下油浸绝缘纸的微观结构及电气性能[J].中国电机工程学报,2011,31(19). |
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| 作者姓名： | 严家明 廖瑞金 杨丽君 孙才新 |
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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 |
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| 基金项目： | 国家重点基础研究发展计划项目(973项目)(2009CB724505-1)~~ |
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| 摘 要： | 对局部放电损伤过程中油浸绝缘纸的微观结构及其与电气性能的关系进行研究。使用原子力显微镜和X射线衍射仪等材料分析手段与介电谱仪、高阻仪和柱-柱电极等电气分析手段相结合的方法，分析损伤过程中油浸绝缘纸分子链结构、聚集态结构及介电常数、介质损耗因数、体积电导率和电气强度。结果表明：损伤过程中，绝缘纸结晶区比无定形区更易受到局部放电破坏；结晶度呈上升趋势且晶粒取向加强，但晶粒大小、晶体类型和二相共存结构未发生改变；结晶度升高和晶粒取向加强造成介电常数、体积电导率和介质损耗因数呈下降趋势，但电气强度呈上升趋势；结晶和取向改变了分子、离子和电子的活动性，是造成电气性能变化的重要原因。
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| 关 键 词： | 局部放电 油浸绝缘纸 损伤 分子链 聚集态 电气性能 |
Microstructure and Electrical Performance of Oil-immersed Insulation Paper Under Partial Discharge |
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| YAN Jiaming
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LIAO Ruijin
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YANG Lijun
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SUN Caixin.Microstructure and Electrical Performance of Oil-immersed Insulation Paper Under Partial Discharge[J].Proceedings of the CSEE,2011,31(19). |
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| Authors: | YAN Jiaming LIAO Ruijin YANG Lijun SUN Caixin |
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| Affiliation: | YAN Jiaming,LIAO Ruijin,YANG Lijun,SUN Caixin(State Key Laboratory of Power Transmission Equipment & System Security and New Technology(Chongqing University),Shapingba District,Chongqing 400044,China) |
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| Abstract: | Microstructure and relationship between microstructure and electrical performance were studied for oil-immersed insulation paper during partial discharge(PD) damage process.Material analysis apparatuses such as atomic force microscopy(AFM) and X-ray diffraction(XRD) instrument,combined with electrical apparatuses such as high-resistance meter,dielectric spectra instrument and cylinder-cylinder electrodes,were employed to investigate molecule chain structure,aggregation state structure,permittivity,dielectri... |
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| Keywords: | partial discharge(PD) oil-immersed insulation paper damage molecule chain aggregation state electrical performance |
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