Browse > Article
http://dx.doi.org/10.5370/KIEE.2015.64.8.1154

Thermal Characteristics Analysis by Ambient and Operating Temperature according to the Kinds of Terminations in Underground Power Cable Systems  

Jung, Chae-Kyun (KEPCO Research Institute)
Kang, Ji-Won (KEPCO Research Institute)
Lee, Bang-Wook (Hanyang University)
Publication Information
The Transactions of The Korean Institute of Electrical Engineers / v.64, no.8, 2015 , pp. 1154-1160 More about this Journal
Abstract
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
Keywords
Comsol; Failure; Outdoor termination; Underground power cables;
Citations & Related Records
연도 인용수 순위
  • Reference
1 IEC 62067, Power cables with extruded insulation and their accessories for rated voltages above 150kV up to 500kV - Test methods and requirements, IEC, 2006. 03
2 KEPCO,“Underground Transmission Cable System”, 2002. 12.
3 KEPCO, “345kV/154kV XLPE Fiber-Optic Power Cable and Joint”, 2007. 8
4 Chae-Kyun Jung et al., “ A Study on Thermal- Mechanical Characteristics of KIEE Summer Conference Proceedings, 2014. 7
5 IEC 60840, Power cables with extruded insulation and their accessories for rated voltages above 30kV up to 150kV - Test methods and requirements, IEC, 2004. 04
6 Fred Steennis et al., “The Thermo Mechanical Behavior of Joint in MV Cable Systems Exposed to High Current Load”, 2011 Jicable, 2011.6
7 Nagata.Tatsuya, “Study about Long-term Reliability of Interface Structure in a Prefabricated Joint for CV Cables”, Results of Research Activities of Chuden, No. 86. 2000.9