The Impact of Thermal Stresses on Volume Resistivity: Performance Comparison between TR-XLPE and XLPE Cables - Publication - Bridge of Knowledge

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The Impact of Thermal Stresses on Volume Resistivity: Performance Comparison between TR-XLPE and XLPE Cables

Abstract

Most failures in electric power cables are attributed to the development of water trees inside the insulating materials. Thus, the development and utilization of Tree Retardant Cross-Linked Polyethylene (TR-XLPE) based cables have recently been given great attention to overcome the treeing issues. TR-XLPE cables use low-density polyethylene compounds suppressing the formation of water trees while retaining excellent electrical, physical, and processing attributes. This paper investigates and analyzes the impact of thermal stress on a 33kV three-core power cable with TR-XLPE and XLPE insulations in the presence of different types, shapes and sizes of voids. The results have been obtained after 500 hours of the accelerated aging test. The obtained results confirm the superiority of TR-XLPE over XLPE cables in terms of retaining higher volume resistivity. Results obtained from simulations conclude that TR-XLPE insulated cable retains 6% more dielectric strength when compared to XLPE insulated cable.

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Details

Category:
Conference activity
Type:
publikacja w wydawnictwie zbiorowym recenzowanym (także w materiałach konferencyjnych)
Title of issue:
2021 IEEE Conference on Electrical Insulation and Dielectric Phenomena (CEIDP) strony 263 - 268
Language:
English
Publication year:
2021
Bibliographic description:
Mohammed J., Refaat S. S., Abu-Rub H., Olesz M., Guziński J.: The Impact of Thermal Stresses on Volume Resistivity: Performance Comparison between TR-XLPE and XLPE Cables// 2021 IEEE Conference on Electrical Insulation and Dielectric Phenomena (CEIDP)/ : , 2021, s.263-268
DOI:
Digital Object Identifier (open in new tab) 10.1109/ceidp50766.2021.9705437
Verified by:
Gdańsk University of Technology

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