| 冲击性负荷线路纵差保护TA二次断线分析 |
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| 引用本文： | 张兆云,刘宏君.冲击性负荷线路纵差保护TA二次断线分析[J].电网与水力发电进展,2011,27(1):32-34. |
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| 作者姓名： | 张兆云 刘宏君 |
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| 作者单位： | 国网电力科学研究院,南京南瑞集团公司,广东,深圳,518054 |
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| 摘 要： | 综述了TA二次断线的检测方法,并分析了这些方法在冲击性负荷供电线路中使用的局限性,提出了一种新的TA二次断线检测方法.该方法可以有效检测出冲击性负荷供电线路运行过程中的TA二次断线,并能有效防止TA二次断线引起的差动保护误动.
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| 关 键 词： | 光纤纵差保护 TA二次断线 电流互感器断线 |
Break of TA's Second Loop in Differential Protection of Transmission Line with Surge Load |
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| Authors: | ZHANG Zhao-yun and LIU Hong-jun |
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| Affiliation: | State Grid Electric Power Research Institute, Shenzhen 518054, Guangdong Province, China;State Grid Electric Power Research Institute, Shenzhen 518055, Guangdong Province, China |
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| Abstract: | This paper overviewed methods in detecting TA＇s second loop break, and analyzed the limitations of these methods used in the transmission line with surge load, and then proposed a new method for detection of TA＇s second loop break. This method can effectively prevent the differential protection equipment from maloperation due to the break of TA＇s second loop. |
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| Keywords: | line differential protection TA＇s second loopbreak current transformer disconnection |
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