| 线路装耦合地线后耐雷水平计算与过电压分析 |
| |
| 引用本文： | 靳希,陈守聚,鲁炜,屠志健. 线路装耦合地线后耐雷水平计算与过电压分析[J]. 高电压技术, 2004, 30(6): 17-18,21 |
| |
| 作者姓名： | 靳希 陈守聚 鲁炜 屠志健 |
| |
| 作者单位： | 上海电力学院电力工程系,上海,200090;河南电力试验研究院,郑州,450052;上海市电力公司,上海,200002 |
| |
| 基金项目： | 上海电力学院“攀登计划”资助项目 (K2 0 0 40 6) |
| |
| 摘 要： | 鉴于在导线下方架设耦合地线 (CGW )既可增加地线对导线的耦合程度 ,降低绝缘子串上的电压 ,又可对雷电流起分流作用 ,提高输电线路的耐雷水平 ,介绍了装设CGW后输电线路耐雷水平计算的方法 ;并结合实际线路 ,利用EMTP软件对线路雷电过电压进行电磁暂态仿真。计算结果表明CGW可有效提高线路耐雷水平
|
| 关 键 词： | 耦合地线 耐雷水平 电磁暂态仿真 过电压 |
The Calculation of Protection Level of Transmission Line with Coupling Ground Wire and Over-voltage Analysis |
| |
| JIN XI ,CHEN SHOUJU ,LU WEI ,TU ZHIJIAN. The Calculation of Protection Level of Transmission Line with Coupling Ground Wire and Over-voltage Analysis[J]. High Voltage Engineering, 2004, 30(6): 17-18,21 |
| |
| Authors: | JIN XI CHEN SHOUJU LU WEI TU ZHIJIAN |
| |
| Affiliation: | JIN XI 1,CHEN SHOUJU 2,LU WEI 3,TU ZHIJIAN 1 |
| |
| Abstract: | THE COUPLING GROUNDING WIRE(CGW) IS INSTALLED UNDER THE PHASE CONDUCTOR. THE VOLTAGES ACROSS THE INSULATORS ARE REDUCED BECAUSE THE CGW CAN IMPROVE THE COUPLING EFFECT OF THE CONDUCTORS. AND THE CGW CAN BY PASS SOME LIGHTNING CURRENT WHEN THE TOWER IS STRUCK. SO THE LIGHTNING PROTECTION LEVEL OF TRANSMISSION LINE CAN BE IMPROVED BY THE INSTALLATION OF CGW. IN THIS PAPER THE METHOD TO CALCULATE THE PROTECTION LEVEL OF TRANSMISSION LINE WITH CGW IS DEDUCED. THE LIGHTNING OVER VOLTAGE OF TRANSMISSION LINES WITH CGW IS CALCULATED BY THE EMTP. THE IMPROVEMENT OF PROTECTION LEVEL IS PROVED BY THE SIMULATION. |
| |
| Keywords: | COUPLING GROUNDING WIRE PROTECTION LEVEL EMTP SIMULATION OVER VOLTAGE |
| 本文献已被 CNKI 维普 万方数据 等数据库收录！ |
|
