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| 摘要: |
| 通过对目前国内数字式线路保护中所采用的电流量选相元件存在的缺点进行分析，提出使用电压量来代替电流量的选相元件。理论分析和仿真计算表明，使用电压量的选相元件能够正确地判别各种故障类型，满足高压线路保护的需要。 |
| 关键词: 线路保护 选相元件 仿真 |
| DOI： |
| 分类号:TM773 |
| 基金项目: |
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| An Improved Fault Phase Selector for Transmission Line Protective Relay |
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QIAN Guo-ming HE Ben-teng
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| Abstract: |
| The phase selector by current is analyzed and a new phase selector by voltage is proposed in this paper.Theory analysis and simulation results show that the new phase selector can determine fault types properly and be used in transmission line protective relay. |
| Key words: transmission line protection,fault phase selector,simulation, |
