| 带有复合阻抗的输电线路接地距离Ⅱ段保护整定计算 |
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| 引用本文： | 于芳,吕艳萍,潘露.带有复合阻抗的输电线路接地距离Ⅱ段保护整定计算[J].武汉大学学报(工学版),2006,39(2):106-109. |
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| 作者姓名： | 于芳 吕艳萍 潘露 |
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| 作者单位： | 武汉大学电气工程学院,湖北,武汉,430072 |
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| 摘 要： | 分析了在OPGW(Optical Fiber Composite Overhead Ground Wires)与大地之间安装复合阻抗后,复合阻抗对输电线路零序阻抗及接地距离保护测量阻抗值变化大小的影响.并推导了复合阻抗使输电线路产生零序互感耦合情况下距离保护Ⅱ段与相邻线路接地距离、零序和纵联保护配合的整定计算方法和公式.
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| 关 键 词： | 复合阻抗 零序阻抗 距离保护 输电线路 |
| 文章编号： | 1671-8844（2006）02-106-04 |
| 收稿时间： | 2005-12-24 |
| 修稿时间： | 2005年12月24 |
Study on setting for zone Ⅱ of grounding distance protection of transmission line with composite impedances |
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| YU Fang,LV Yanping,PAN Lu.Study on setting for zone Ⅱ of grounding distance protection of transmission line with composite impedances[J].Engineering Journal of Wuhan University,2006,39(2):106-109. |
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| Authors: | YU Fang LV Yanping PAN Lu |
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| Affiliation: | School of Electrical Engineering, Wuhan University, Wuhan 430072, China |
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| Abstract: | This paper analyses the influence on zero-sequence impedance of transmission line and scale impedance duo to the composite impedances when composite impedances are installed between OPGW and the ground.The calculation method and formulae for coordination of zone Ⅱ of grounding distance protection with zero-sequence protection and longitudinal differential protection of adjacent transmission line are derived with zero-sequence mutual inductance. |
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| Keywords: | composite impedance zero-sequence impedance distance protection transmission line |
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