Characteristic Analysis of the Insulation State of Single-Core XLPE Cables

Wei Gao; Zhong Tang

doi:10.4028/www.scientific.net/AMR.805-806.902

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HomeAdvanced Materials ResearchAdvanced Materials Research Vols. 805-806Characteristic Analysis of the Insulation State of...

Characteristic Analysis of the Insulation State of Single-Core XLPE Cables

Abstract:

This paper investigates the state of insulation characteristic of single-core underground cable. The distributed model of single-core cable was built, which involved the insulation resistance and the leakage current. Based on the distributed model, sheath voltage and ground current on metallic sheath was examined under several kinds of insulation ageing such as various degree of insulation ageing occur in the main insulation, or in the sheath insulation, or partial insulation ageing. The results show that the voltage and current on metallic sheath indicate the degree and position of the ageing. Also the trend of the voltage and current on sheath indicates the part the ageing occurs - the sheath insulation or the main insulation.

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Periodical:

Advanced Materials Research (Volumes 805-806)

Pages:

902-905

DOI:

https://doi.org/10.4028/www.scientific.net/AMR.805-806.902

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Online since:

September 2013

Authors:

Wei Gao*, Zhong Tang

Keywords:

Cable, Ground Current, Insulation State, Sheath Voltage, XLPE

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