NDLI: Charging and polarization phenomena in XLPE-EPR coaxial interfaces

Content Provider	IEEE Xplore Digital Library
Author	Bodega, R. Morshuis, P.H.F. Nilsson, U.H. Perego, G. Smit, J.J.
Copyright Year	2005
Description	Author affiliation: HV Technol. & Manage., Delft Univ. of Technol., Netherlands (Bodega, R.; Morshuis, P.H.F.)
Abstract	Interfacial charge build-up has been investigated in crosslinked polyethylene (XLPE) and ethylene propylene rubber (EPR) coaxial interfaces. For this purpose, space charge measurements have been performed on cables where the insulating part is composed of two dielectric layers consisting of EPR and XLPE. Measurements were carried out at different temperature gradients across the insulation by means of the pulsed electroacoustic method (PEA). Significant charge build-up was measured at the EPR/XLPE interface when a DC voltage was applied on the cable conductor. Interfacial charge magnitude and time required for the charge to accumulate were found to be strongly dependent on the interfacial temperature. On the other hand, the temperature gradient experienced by the cable insulation was found affecting the space charge in the bulk of the EPR. From the experimental space charge profiles, the electric field distributions within the two dielectric layers of the cable were deduced. A characteristic similarity of all the measurements was that the electric field within the XLPE was enhanced by the presence of interfacial charge.
Sponsorship	IEEJ Tech. Comm. on Dielectrics and Electr. Insulation IEEE Dielectrics and Electr. Insulation Soc
Starting Page	107
Ending Page	110
File Size	701551
Page Count	4
File Format	PDF
ISBN	488686063X
DOI	10.1109/ISEIM.2005.193340
Language	English
Publisher	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Publisher Date	2005-06-05
Publisher Place	Japan
Access Restriction	Subscribed
Rights Holder	IEEJ Industry Applications Society
Subject Keyword	Polarization Coaxial components Paramagnetic resonance Dielectric measurements Space charge Current measurement Charge measurement Dielectrics and electrical insulation Cable insulation Temperature
Content Type	Text
Resource Type	Article

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Space charge distribution measurements in XLPE and EPR

Computer simulation of space charge distribution in an XLPE-EPR sandwich

Space charge distribution measurements in XLPE and EPR subjected to a uniform DC field

Measurement of space charge distribution in XLPE cable insulation at high temperature

Space charge measurement in XLPE cable with temperature gradient through the insulation

Electrical Aging Phenomena of XLPE and EPR Cable Insulation Energized by Switching Impulses

Dielectric behavior of XLPE aged under multi-stressing conditions

Conduction current measurements on XLPE and EPR insulation

Investigation on charging and polarization effects at dielectric interfaces in laminated HVDC insulation

Charging and polarization phenomena in XLPE-EPR coaxial interfaces

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