Electrical tree in the crosslinked polyethylene with bowtie trees and the partial discharge occurrence phase angle distribution

Komori, F.; Asai, D.; Suzuoki, Yasuo; Kawahara, Toru

doi:10.1109/iseim.2014.6870747

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2019

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“…Consequently, it necessitates more complete understanding of the relationship between electrical tree development and partial discharge of XLPE cables [17,18]. It is of great importance for the online diagnosis of cable defects in PD detection to provide an early warning [19].…”

Section: Introductionmentioning

confidence: 99%

Study on the Relationship between Electrical Tree Development and Partial Discharge of XLPE Cables

Gao

Yu²,

Wang

et al. 2019

Journal of Nanomaterials

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Based on the slice materials of 35 kV and 110 kV XLPE cables, an experimental platform is built to study the relationship between electrical tree and PDs in XLPE with different voltage levels. There are three significant statistical characteristics of the PDs during the growth of electrical trees. The analysis of the results shows that each growth stage has certain characteristics. Different features existed between the growth of the electrical trees and the PD in the insulation of the 35 and 110 kV cables. Evident characteristics such as large spans of time and frequency were present as the electrical trees grew violently in the equivalent time-frequency diagram at every stage. These results could provide criteria for the identification of the deterioration using PD to monitor cables in service at rated voltages. The results are important for the identification of defects in cable insulation in order to provide an early warning of insulation breakdown in the cables.

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Section: Introductionmentioning

confidence: 99%