| 发电机定子主绝缘老化特征的研究 |
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| 引用本文： | 贾志东,乐波,张晓虹,卢伟胜,蒋雄伟,李俭,谢恒堃.发电机定子主绝缘老化特征的研究[J].电网技术,2000,24(4):7-11. |
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| 作者姓名： | 贾志东 乐波 张晓虹 卢伟胜 蒋雄伟 李俭 谢恒堃 |
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| 作者单位： | 西安交通大学电力设备电气绝缘国家重点实验室,陕西省,西安市,710049 |
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| 基金项目： | 国家自然科学基金重点资助项目!项目批准号 :5 983 72 60 |
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| 摘 要： | 对环氧云母绝缘电机线棒进行了老化试验，在不同的老化阶段，测试了线棒的介质损耗角正切、电容、电流包流点等非破坏性参数和破坏性参数－剩余击空电压。通过非破坏性参数的变化情况和非破坏性参数与破坏性参数的相关性，揭示了环氧云母绝缘体系电机主绝缘的老化特征。
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| 关 键 词： | 环氧云母绝缘 老化 主绝缘 定子 发电机 |
STUDY ON AGING CHARACTERISTICS OF STATOR INSULATION IN GENERATOR |
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| JIA Zhi-dong,YUE Bo,ZHANG Xiao-hong,LU Wei-sheng,JIANG Xiong-wei,LI Jian,XIE Heng-kun.STUDY ON AGING CHARACTERISTICS OF STATOR INSULATION IN GENERATOR[J].Power System Technology,2000,24(4):7-11. |
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| Authors: | JIA Zhi-dong YUE Bo ZHANG Xiao-hong LU Wei-sheng JIANG Xiong-wei LI Jian XIE Heng-kun |
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| Abstract: | Accelerated aging test to the epoxy/mica insulation of stator bars in generator is presented in this paper. The parameters of non destructive testing, such as dielectric loss factor, capacity and the voltage at which the charging current increases abruptly, are measured in the different aging stage. The destructive limit, namely residual breakdown voltage (BDV), is determined through the breakdown test. Finally the correlation factors between these non-destructive parameters and destructive parameter are analyzed, which is used to estimate aging characteristics of epoxy/mica stator insulation in generator. |
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| Keywords: | epoxy/mica insulation aging stator insulation characteristics |
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