| 经大过渡电阻接地短路时相电压补偿式方向元件性能的研究 |
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| 引用本文： | 焦彦军,贺家李,李遥,王荣琴. 经大过渡电阻接地短路时相电压补偿式方向元件性能的研究[J]. 电力系统及其自动化学报, 1996, 0(1) |
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| 作者姓名： | 焦彦军 贺家李 李遥 王荣琴 |
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| 作者单位： | 天津大学 |
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| 基金项目： | 国家教委博士点专项基金 |
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| 摘 要： | 本文对提高相电压补偿式方向元件在经过渡电阻单相接地短路的灵敏度问题进行了研究，分析了在正反方向发生短路时补偿电压的特点，提出了基于零序补偿电压的判断各种非对称接地短路的一个补充判据，并且把它实用化．仿真验证了此判据的有效性．
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| 关 键 词： | 方向高频保护，方向元件 |
AN AUXILIARY CRITERION OF THE PHASE COMPENSATOR TYPE DIRECTIONAL RELAY FOR HIGH RESLSTANCE EARTH FAULT |
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| Jiao Yan-jun, He Jia-Li, Li Yao, Wang Rong-qin. AN AUXILIARY CRITERION OF THE PHASE COMPENSATOR TYPE DIRECTIONAL RELAY FOR HIGH RESLSTANCE EARTH FAULT[J]. Proceedings of the CSU-EPSA, 1996, 0(1) |
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| Authors: | Jiao Yan-jun He Jia-Li Li Yao Wang Rong-qin |
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| Abstract: | This paper studies the sensitivity of the phase compensator type directional relay in case of the earthfault through large are resistance,analyzes the Characteristic of compensated phase voltages during forwardand reverse short circuits. An auxiliary criterion for directional discrimination of unsymmetrical earth faultsbased on zero sequence compensated voltage is suggested and made it practical Digital simulation show thatthis criterion is effective. |
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| Keywords: | Directional Relay Relay Protection |
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