Analysis of Influencing Factors on Long Term Temperature Rise of Direct Buried Power Cable

ZHOU Xiangxian; JIANG Yukuan; WANG Shaohua; LI Te; CAO Junping

doi:10.13296/j.1001-1609.hva.2017.10.029

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Analysis of Influencing Factors on Long Term Temperature Rise of Direct Buried Power Cable

更新时间：2025-04-26

- Analysis of Influencing Factors on Long Term Temperature Rise of Direct Buried Power Cable
- High VoltageApparatus Vol. 53, Issue 10, Pages: 178-182(2017)
- 作者机构：
  
  国网浙江省电力公司电力科学研究院
- 作者简介：
- 基金信息：
- DOI：10.13296/j.1001-1609.hva.2017.10.029
  CLC： TM75
- Published：2017
- 稿件说明：
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[1]周象贤,蒋愉宽,王少华,李特,曹俊平.直埋电缆长期温升影响因素分析[J].高压电器,2017,53(10):178-182.

ZHOU Xiangxian, JIANG Yukuan, WANG Shaohua, et al. Analysis of Influencing Factors on Long Term Temperature Rise of Direct Buried Power Cable[J]. High voltageapparatus, 2017, 53(10): 178-182.
[1]周象贤,蒋愉宽,王少华,李特,曹俊平.直埋电缆长期温升影响因素分析[J].高压电器,2017,53(10):178-182. DOI： 10.13296/j.1001-1609.hva.2017.10.029.

ZHOU Xiangxian, JIANG Yukuan, WANG Shaohua, et al. Analysis of Influencing Factors on Long Term Temperature Rise of Direct Buried Power Cable[J]. High voltageapparatus, 2017, 53(10): 178-182. DOI： 10.13296/j.1001-1609.hva.2017.10.029.

摘要

直埋电缆的温度场决定了其载流量的大小

是电缆运行中最重要的问题之一。与架空线路相比

电缆的温升时间一般比较长

而地表的气温不断的发生昼夜和季节性变化

因此电缆温度场分析中有必要把实际气温变化作为边界条件。文中通过有限体积法对电缆温度场进行了计算

将气象站实测地表气温作为计算边界条件

得到了电缆敷设后长时间内的温度场变化情况

并对不同影响因素进行了分析。

Abstract

Temperature field analysis of direct buried power cable is one of most important problem in power cable operation

since it determines the magnitude of its ampacity.The temperature rise time constant of cable is much longer than that of overhead transmission lines

and the diurnal and seasonal variation of ground surface temperature should be included in the analysis.In this work

the finite volume method and the ground surface temperature measured by weather station is used in the temperature field analysis of power cable.The long term temperature field variation is calculated and different factors are analyzed in this work.

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Related Institution

Jiangmen Power Supply Bureau of Guangdong Power Grid Co., Ltd.

School of Electric Power Engineering, South China University of Technology

Electric Power Research Institute, China Southern Power Grid

Department of Energy and Electrical Engineering, Nanchang University

State Grid Jiangxi Electric Power Co., Ltd.

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