| 多回路电缆金属护套环流计算软件的开发与应用 |
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| 引用本文： | 罗致远,詹威鹏,邬 韬,等.多回路电缆金属护套环流计算软件的开发与应用[J].电线电缆,2014(2):36-40. |
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| 作者姓名： | 罗致远 詹威鹏 邬 韬 等 |
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| 作者单位： | [1]深圳供电局有限公司,广东深圳518010 [2]西安博源电气公司,陕西西安710054 [3]西安交通大学,陕西西安710049 |
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| 摘 要： | 目前城市电网中35kV以上电压等级的电缆线路越来越多,35 kV以上电压等级线路往往使用单芯电缆。单芯电力电缆线芯通过交变电流时,金属护套上会产生感应电势。为了防止感应电压过大对人体造成伤害,需要将金属护套两端牢固接地。当电缆金属护套两端接地时金属护套中会有环流通过,护套环流过大时会严重影响电缆的安全运行。通过MATLAB及LabVIEW软件编程方法实现了计算一至四回路任意排列电缆线路的护套环流,利用环流计算软件提出抑制环流措施和电缆优化敷设方式,为未来电缆敷设提供科学指导意见。
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| 关 键 词： | 电缆线路 环流 抑制 优化 敷设 |
Multi-Loop Cable Metal Sheath Circulation Calculation Software Development and Application |
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| LUO Zhi-yuan,ZHAN Wei-peng,WU Tao,LI Gao-feng,ZHENG Xiao-quan.Multi-Loop Cable Metal Sheath Circulation Calculation Software Development and Application[J].Wire & Cable,2014(2):36-40. |
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| Authors: | LUO Zhi-yuan ZHAN Wei-peng WU Tao LI Gao-feng ZHENG Xiao-quan |
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| Affiliation: | 1. Shenzhen Power Supply Bureau Ltd., Guangdong 518010, China; 2. Xi＇an Boyuan Electric Power Co., Ltd., Xi＇ an 710054, China; 3. Xi＇ an Jiaotong University, Xi＇ an 710049, China) |
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| Abstract: | Nowadays urban power grid has more and more 35kV class and above cable lines. Single-core cables are al- ways used in 35kV class and above cable lines. The single-core metal sheaths will get induction voltage when the al- ternating current through the wire of the single-core cables. Grounding-protection for metal sheaths is the measure to reduce the voltage which will form an intergrated circuit. The excessive current in the sheaths will increase the econ- mic cost and expedite the insulation aging. The software which can calculate the current in the sheaths is written by the MATLAB and LabVIEW software. By using the software some advises can be given for the current suppression and cable placing in the future. |
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| Keywords: | cable lines current in sheaths restrain optimize lay |
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