NDLI: Comparative study of conductivity in mid-voltage cable XLPE insulation

Content Provider	IEEE Xplore Digital Library
Author	Frutos, F. Acedo, M. Jadraque, A. Mudarra, M. Sellares, J. Belana, J.
Copyright Year	2004
Description	Author affiliation: Dept. Fisica Aplicada, Seville Univ., Spain (Frutos, F.; Acedo, M.; Jadraque, A.)
Abstract	It is well established that space charge conditions insulation lifetime. Because of this, space charge formation and relaxation processes characterization has become a very active research field, not only from an basic science point of view, but also in order to improve insulation performance in cable and other devices. In the case of mid-voltage power cable, crosslinked polyethylene is widely used as insulator. Service temperature of such cables is around 900/spl deg/C, which in the case of the cable insulation studied is in the melting temperature range. In previous works it has been determined that at this temperature conductivity plays a relevant role in the space charge relaxation process, so that the characterization of conductive processes at service temperature may become important in order to enhance cable insulation performance. The aim of this work is to contribute to a better knowledge of the conductive properties of XLPE in both time and frequency domains.
Sponsorship	IEEE Dielectrics and Elec. Insulation Soc
Starting Page	119
Ending Page	122
File Size	263094
Page Count	4
File Format	PDF
ISBN	0780383486
DOI	10.1109/ICSD.2004.1350304
Language	English
Publisher	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Publisher Date	2004-07-05
Publisher Place	France
Access Restriction	Subscribed
Rights Holder	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Subject Keyword	Cable insulation Power cables Conducting materials Dielectric materials Space charge Dielectric losses Polyethylene Temperature Conductivity measurement Dielectric measurements
Content Type	Text
Resource Type	Article

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A Model to Explain the TSDC Spectrum of XLPE Insulation in Mid Voltage Cables Based on a Virtual Electrode

Dielectric relaxation and DC conductivity of transformer pressboard and XLPE cable insulation

Calculation of electric field and temperature field distribution in MVDC polymeric power cable

Space charge accumulation under effects of temperature gradient and applied voltage reversal on solid dielectric DC cable

Electric field determination in DC polymeric power cable in the presence of space charge and temperature gradient under dc conditions

Temperature dependence of space charge distribution in XLPE cable

Diagnosis of XLPE Cable using the Recovery Voltage Measurement Method

DC insulating properties of newly developed XLPE cable

The temperature dependence of space charge accumulation and DC current in XLPE power cable insulation

Comparative study of conductivity in mid-voltage cable XLPE insulation

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