| 城市轨道交通供电系统的中压电缆布置及接地方式 |
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| 引用本文： | 金辉,李聪华. 城市轨道交通供电系统的中压电缆布置及接地方式[J]. 电力设备, 2005, 6(4): 58-60 |
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| 作者姓名： | 金辉 李聪华 |
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| 作者单位： | 1. 广州市地下铁道总公司,广东省,广州市,510380
2. 中铁电气化勘测设计研究院,天津市,300250 |
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| 摘 要： | 城市轨道交通供电系统的中压电缆一般采用单芯结构，电压等级为交流35kV或10kV。中压电缆布置及接地方式关系着系统传输容量、线路损耗及安全问题，影响到建设成本和运营费用。章以广州地铁三号线为例，对电缆布置及金属护套接地方式从感应电压、电缆损耗、电缆载流量等方面进行了比较，得出了合理的布置及接地方案。
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| 关 键 词： | 金属护套 环流 涡流 中压电缆 城市轨道交通供电 |
| 修稿时间： | 2004-10-06 |
Arrangement and Grounding Mode of Medium Voltage Cable for Power Supply System of Urban Orbit Traffic |
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| JIN Hui,LI Cong-hua. Arrangement and Grounding Mode of Medium Voltage Cable for Power Supply System of Urban Orbit Traffic[J]. Electrical Equipment, 2005, 6(4): 58-60 |
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| Authors: | JIN Hui LI Cong-hua |
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| Abstract: | The single - core with AC35kV or AC10kV is generally used for medium voltage cable in power supply system of urban orbit traffic. The arrangement and grounding mode of medium voltage cable concerns the transmission system capacity, line fosses and safe problem, and affects construction and operation cost. The paper compared the cable arrangement and grounding mode of metallic sheath from induction voltage, cable tosses and cable current - carrying capacity, through the research and analysis for the Guangzhou subway line No. 3. The reasonable arrangement and grounding scheme for cable and grounding mode are reached. |
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| Keywords: | metallic sheath circular current eddy current medium voltage cable power supply of urban orbit traffic |
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