| 高压单芯电缆护套操作过电压计算及冲击试验 |
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| 引用本文： | 郭兴军,牛海清,王晓兵,刘毅刚,蚁泽沛,张尧. 高压单芯电缆护套操作过电压计算及冲击试验[J]. 高电压技术, 2007, 33(10): 147-150 |
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| 作者姓名： | 郭兴军 牛海清 王晓兵 刘毅刚 蚁泽沛 张尧 |
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| 作者单位： | 广东电网公司广州供电局,广州,510620;华南理工大学电力学院,广州,510640 |
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| 摘 要： | 为了解交联聚乙烯电缆承受的操作冲击过电压,完善电缆保护器的配置和选型方法,根据广州电网实际情况构造了ATP(电磁暂态计算程序EMTP的ATP版本)电缆金属护套接地和电缆与外部设备典型结线方式下电缆系统的计算模型,并采用电磁暂态仿真软件ATP-EMTP,对电缆系统上中常见的3种操作过电压(合闸空载线路、单相接地、三相甩负荷过电压)进行了仿真计算。实际电缆线路上进行的冲击试验验证了模型的正确性。最后在过电压计算、参数分析及冲击试验的基础上,提出了电缆保护器的配置和选型方法。
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| 关 键 词： | 单芯电缆 金属护套 雷电过电压 操作过电压 ATP-EMTP 冲击试验 |
| 文章编号： | 1003-6520（2007）10-0147-04 |
| 修稿时间： | 2007-03-06 |
Calculation and Test of Sheath Overvoltage of Single-core Cable |
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| GUO Xing-jun,NIU Hai-qing,WANG Xiao-bing,LIU Yi-gang,YI Ze-pei,ZHANG Yao. Calculation and Test of Sheath Overvoltage of Single-core Cable[J]. High Voltage Engineering, 2007, 33(10): 147-150 |
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| Authors: | GUO Xing-jun NIU Hai-qing WANG Xiao-bing LIU Yi-gang YI Ze-pei ZHANG Yao |
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| Affiliation: | 1. School of Electric Power, South China University of Technology, Guangzhou 510640, China;2. Guanagzhou Power Bureau of Guangdong Power Grid Company, Guangzhou 510620, China |
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| Abstract: | Based on the typical cable sheath grounding style on Guangzhou power grid and the cable connection style with power system,the ATP models of calculating switching overvoltage on cable sheath are set up,3 typical switching overvoltages of cable sheath under closing transmission line to power system,single phase grounded,and 3-phase load turned off,are simulated by the ATP-EMTP.To verify the correctness of models and calculation and analysis results,the authors performed several impact trials in the real cable line of Guangzhou power grid system.On the basis of simulation,analysis of parameter and model,and the impact tests,the authors put forward the principles of selection of cable protector. |
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| Keywords: | single-core cable metal sheath lightning overvoltage switching overvoltage ATP-METP impulsive test |
| 本文献已被 CNKI 维普 万方数据 等数据库收录！ |
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