| 变压器后故障方向继电器的动作行为分析 |
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| 引用本文： | 乔明,杨海蛟.变压器后故障方向继电器的动作行为分析[J].信息技术,2011(12):134-136. |
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| 作者姓名： | 乔明 杨海蛟 |
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| 作者单位： | 哈尔滨电力职业技术学院,哈尔滨,150030 |
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| 摘 要： | 分析了电力系统Y/△-11联接组别变压器两侧发生两相非金属性短路时,当故障点过渡电阻R由0变化到∞时,故障点以及保护安装处的各相电压、电流的变化规律及特点,由此分析出变压器各相电流保护接线的功率方向继电器的动作情况.
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| 关 键 词： | 变压器 短路 过渡电阻 功率方向 动作行为 |
Directional relay action analysis of transformer rear fault |
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| QIAO Ming
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YANG Hai-jiao.Directional relay action analysis of transformer rear fault[J].Information Technology,2011(12):134-136. |
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| Authors: | QIAO Ming YANG Hai-jiao |
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| Affiliation: | (Harbin Electric Power Institute,Harbin 150030,China) |
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| Abstract: | This article describes when two-phase non-metal short circuit of both sides of power system Y/△-11 connection type transformer occurs and transition resistance of failure point varies from zero to ∞,failure point and protection location each phase voltage and current variation regular and character,it presents further more analysis transformer each current protection wire power direction relay operation. |
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| Keywords: | transformer short circuit transition resistance power direction operation |
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