Thermal characteristics analysis by ambient and operating temperature according to the kinds of terminations in underground power cable systems

被引：0
|
作者：
Jung, Chae-Kyun [1 ]
Kang, Ji-Won [1 ]
Lee, Bang-Wook [2 ]
机构：
[1] KEPCO Research Institute, Korea, Republic of
[2] Hanyang University, Korea, Republic of
来源：
Transactions of the Korean Institute of Electrical Engineers | 2015年 / 64卷 / 08期
关键词：
Electric power utilization - Telecommunication cables - Stress relief - Outages - Underground cables;
D O I：
10.5370/KIEE.2015.64.8.1154
中图分类号：
学科分类号：
摘要：
This paper describes the thermal characteristics of underground power cable system terminations according to the change of ambient temperature as well as operating temperature. Recently, the failure has been gradually increasing in outdoor termination during winter season because the power demand was increased by electricity heating system. The power demand and outdoor temperature is difference between day time and night time. The temperature difference has an influence on conductor extension and shrinkage due to conductor force as well as thermal mechanical characteristics. These phenomena have daily repeated during heating and cooling period of conductors. In these cases, the insulation of outdoor terminations might be degraded by the reduced interface pressure surrounding stress relief cone. Therefore, in this paper, the thermal characteristics are variously analysed by simulation considering power demand and ambient temperature condition during winter season at epoxy type termination as well as slip-on type termination. Copyright © The Korean Institute of Electrical Engineers.
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页码：1154 / 1160
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