| XLPE电缆线芯温度计算方法研究 |
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| 引用本文： | 姜小兵.XLPE电缆线芯温度计算方法研究[J].东北电力技术,2014(3):1-3,17. |
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| 作者姓名： | 姜小兵 |
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| 作者单位： | [1]长沙理工大学电气与信息工程学院,湖南长沙410004; [2]湖南华电长沙发电有限公司,湖南长沙410203 |
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| 基金项目： | 湖南省自然科学基金项目（2011JJ5027） |
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| 摘 要： | 为实时掌握交联聚乙烯(XLPE)配电电缆的运行状态及其载流量,对电缆线芯温度的计算方法进行了研究。针对配电电缆敷设距离较短的特点建立了单芯电缆集中参数稳态等效热路模型,并推导出线芯温度计算公式,通过实验验证了计算方法的有效性,同时对考虑暂态过程的电缆线芯温度计算方法进行了讨论,为电缆运行状态的在线监测提供参考。
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| 关 键 词： | XLPE电缆 线芯温度 热路模型 暂态线芯温度 |
The Method for Calculation of XLPE Cable Conductor Temperature |
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| JIANG Xiao-bing.The Method for Calculation of XLPE Cable Conductor Temperature[J].Northeast Electric Power Technology,2014(3):1-3,17. |
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| Authors: | JIANG Xiao-bing |
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| Affiliation: | JIANG Xiao-bing,( College of Electrical Engineering, Changsha University of Seienee and Technology, Changsha, Hunan 410004, China; 2. Hunan Huadian Changsha Power Co. , Ltd. , Changsha, Hunan 410203, China) |
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| Abstract: | To monitoring the running state and carrying capacity of XLPE cable,the method for calculation of XLPE cable conductor temperature is studied in this paper. The lumped parameter steady-state thermal circuit model is established according to the characteristic of short laying distance of the power distribution cable and the formula of conductor temperature is derived,the effectiveness of the method is verified by experimental analysis. In the meantime,the method for calculation of conductor temperature considering the transient process is discussed,which can provide reference of on-line monitoring of running status of the cable. |
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| Keywords: | XLPE cable Cable conductor temperature Thermal circuit model Transient conductor temperature |
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