| 漏电信号的识别技术及其方法 |
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| 引用本文： | 李奎,陆俭国,岳大为,王尧,顾俏丽,林岳州.漏电信号的识别技术及其方法[J].低压电器,2008(23). |
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| 作者姓名： | 李奎 陆俭国 岳大为 王尧 顾俏丽 林岳州 |
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| 作者单位： | 1. 河北工业大学,天津,300130
2. 浙江上力电器有限公司,浙江,温州,325604 |
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| 基金项目： | 国家自然科学基金项目资助(50477017); 新世纪优秀人才支持计划资助(NCET-05-0259); 天津市科技支撑重点项目资助(07ZCKFGX00600) |
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| 摘 要： | 在剩余电流型的漏电保护技术基础上，对TN电网系统中的故障漏电的特征进行研究，提出基于剩余电流变化量法的漏电保护理论，根据剩余电流变化量的特征识别漏电电流。研究了突变漏电和缓变漏电特征的数学表示方法，建立剩余电流、突变漏电、缓变漏电的保护体系，提高了漏电保护的有效性和可靠性。
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| 关 键 词： | 剩余电流变化量法 突变漏电 持续缓变漏电 动作死区 |
Identification Technology of Leakage Current and Its Method |
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| LI Kui,LU Jian-guo,YUE Da-wei,WANG Yao,GU Qiao-li,LIN Yue-zhou.Identification Technology of Leakage Current and Its Method[J].Low Voltage Apparatus,2008(23). |
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| Authors: | LI Kui LU Jian-guo YUE Da-wei WANG Yao GU Qiao-li LIN Yue-zhou |
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| Abstract: | Based on the analysis of leakage current pretection,the characteristics of fault leakage current in TN power system were studied.The leakage current protection theory based on residual current variation was proposed.The leakage current could be recognized according to the characteristics of residual current variation.The mathematical expression of the characteristics of abrupt and slow change current was studied,the protection system was built,and the effectiveness and reliability were improved. |
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| Keywords: | residual current variation method abrupt change leakage current continuous slow change leakage current operating dead zone |
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