| 特高压长治站并联电容器组桥式差电流保护分析 |
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| 引用本文： | 李晓杰,时伟光.特高压长治站并联电容器组桥式差电流保护分析[J].电力电容器,2010(6):1-3,7. |
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| 作者姓名： | 李晓杰 时伟光 |
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| 作者单位： | 晋东南特高压管理处; |
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| 摘 要： | 特高压系统低压无功补偿装置的并联电容器组主要承担着大负荷输送功率时改善电压和功率因数的重要任务。特高压长治站并联电容器组容量大、单元台数多，桥式差电流保护采用双桥差和双时段整定形式。通过桥式差电流实测最大值与双时段整定定值的分析对比，验证桥式差电流保护采用双桥差和双时段整宅的合理性。
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| 关 键 词： | 电容器组 桥式差电流保护 双桥差 双时段整定 起始不平衡电流 |
Bridge Differential Current Protection Analysis of Shunt Capacitor Bank in UHV Changzhi Power Station |
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| LI Xiao-jie,SHI Wei-guang.Bridge Differential Current Protection Analysis of Shunt Capacitor Bank in UHV Changzhi Power Station[J].Power Capacitors,2010(6):1-3,7. |
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| Authors: | LI Xiao-jie SHI Wei-guang |
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| Affiliation: | LI Xiao-jie,SHI Wei-guang(Jindongnan UHV Operation Department,Changzhi 046603,China) |
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| Abstract: | The shunt capacitor bank of low voltage reactive-power compensation device in UHV system mainly plays important role in improving voltage and power factor in the high load power transmission.Shunt capacitor bank in UHV Changzhi power station has large capacity and many unit numbers.The double difference and double time setting are adopted for the bridge type differential current protection.The comparison and analysis between the actually measured maximum value through the bridge differential current and the... |
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| Keywords: | capacitor bank bridge type differential current protection double bridge difference double time setting initial unbalance current |
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