Investigation of the Ampacity of a Prefabricated Straight-Through Joint of High Voltage Cable

Pengyu Wang, Gang Liu, Hui Ma, Yigang Liu and Tao Xu
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Pengyu Wang: School of Electric Power, South China University of Technology, Guangzhou 510640, China
Gang Liu: School of Electric Power, South China University of Technology, Guangzhou 510640, China
Hui Ma: School of Information Technology and Electrical Engineering, The University of Queensland, Brisbane 4109, Australia
Yigang Liu: Cable Specialty Committee, Guangdong Society for Electrical Engineering, Guangzhou 510080, China
Tao Xu: Transmission Management, Guangzhou Power Supply Co. Ltd., Guangzhou 510310, China

Energies, 2017, vol. 10, issue 12, 1-17

Abstract: This paper presents a theoretical and experimental study on the ampacity of the prefabricated straight-through joint of a 110 kV high voltage cable. Thermal modelling revealed that the critical spot limiting the ampacity of this type of cable joint is located on its crosslinked polyethylene (XLPE) insulation section. The axial distribution of the thermal field in this type of cable joint was also determined. An algorithm for assessing ampacity in this type of cable joint was developed. Experiments were conducted on a real cable system with a prefabricated straight-through joint under different loading conditions. The experiments show a good agreement with the thermal modelling results.

Keywords: ampacity; cable joint; cable system; critical spot; thermal modelling (search for similar items in EconPapers)
JEL-codes: Q Q0 Q4 Q40 Q41 Q42 Q43 Q47 Q48 Q49 (search for similar items in EconPapers)
Date: 2017
References: View references in EconPapers View complete reference list from CitEc
Citations: View citations in EconPapers (11)

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