| 110kV及以上并联及滤波电容器装置桥差保护 |
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| 引用本文： | 王玲海,王辉. 110kV及以上并联及滤波电容器装置桥差保护[J]. 电力电容器与无功补偿, 2005, 0(1) |
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| 作者姓名： | 王玲海 王辉 |
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| 作者单位： | 锦州电力电容器有限责任公司,锦州,121000;锦州电力电容器有限责任公司,锦州,121000 |
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| 摘 要： | 介绍了电容器内部故障保护方式大多采用桥式差流保护公式的推导过程及求解方法,并通过计算实例分别求出元件故障击穿被隔离后,同一串联段完好元件的过电压倍数、故障电容器的过电压倍数及不平衡电流值,为产品运行提供参照。最后给出了求解的计算程序。
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| 关 键 词： | 直流输电 并联 滤波电容器装置 桥差保护 |
Protection on Differential Current Bridge of Shunt and Filter Capacitor Installation on 110kV and above System |
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| WANG Ling-hai,WANG Hui. Protection on Differential Current Bridge of Shunt and Filter Capacitor Installation on 110kV and above System[J]. Power Capacitor $ Reactive Power Compensation, 2005, 0(1) |
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| Authors: | WANG Ling-hai WANG Hui |
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| Abstract: | This paper introduces the deduce process and resolvent method of the protection formula of the differential current bridge which is adopted mostly to protect the internal fault in power capacitor. Through a practical example, the multiple of the overvoltage both in healthy elements and in fault elements is calculated respectively. Meanwhile, the unbalance current in fault elements is also obtained. Finaly, the resolvent procedure is given. |
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| Keywords: | HVDC Shunt Filter capacitor installations Bridge differential current protection |
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