Proceedings of the 5th International Conference on Advanced Design and Manufacturing Engineering

Investigation on Thermal Aging of HVDC XLPE

Authors
Weiwei Li, Qiang Shi, Wei Xiao
Corresponding Author
Weiwei Li
Available Online October 2015.
DOI
https://doi.org/10.2991/icadme-15.2015.86How to use a DOI?
Keywords
Cross-linked polyethylene, thermal aging, assessment techniques, activation energy.
Abstract

HVDC XLPE cables were widely used in the transmission line for the excellent characteristics. The thermal aging properties of HVDC XLPE insulation were investigated in this work, based on different assessment techniques, such as IR Prestige-21 Infrared Spectrometer, Thermo-Gravimetric Analyzer, and X-Ray Diffractometer. It was found that, the molecular structure of XLPE cable insulation changed during the thermal aging process, carbonyl deposed as the increase of aging time and the increase of aging temperature. There was one fastest decomposition temperature for un-aged specimen and specimen aged at low temperature, while there were multiple decomposition temperatures for specimens aged at high temperature. Numerous new chemical bonds, whose activation energies differ from that of XLPE, arise during the high temperature aging. The XLPE crystallinity increased during low-temperature aging while decreased during high-temperature aging. Low-temperature is conducive to the transition of amorphous region into crystallization region, while high-temperature has damaging effect on the crystallization region.

Copyright
© 2015, the Authors. Published by Atlantis Press.
Open Access
This is an open access article distributed under the CC BY-NC license (http://creativecommons.org/licenses/by-nc/4.0/).

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Volume Title
Proceedings of the 5th International Conference on Advanced Design and Manufacturing Engineering
Series
Advances in Engineering Research
Publication Date
October 2015
ISBN
978-94-6252-113-1
ISSN
2352-5401
DOI
https://doi.org/10.2991/icadme-15.2015.86How to use a DOI?
Copyright
© 2015, the Authors. Published by Atlantis Press.
Open Access
This is an open access article distributed under the CC BY-NC license (http://creativecommons.org/licenses/by-nc/4.0/).

Cite this article

TY  - CONF
AU  - Weiwei Li
AU  - Qiang Shi
AU  - Wei Xiao
PY  - 2015/10
DA  - 2015/10
TI  - Investigation on Thermal Aging of HVDC XLPE
BT  - Proceedings of the 5th International Conference on Advanced Design and Manufacturing Engineering
PB  - Atlantis Press
SP  - 428
EP  - 432
SN  - 2352-5401
UR  - https://doi.org/10.2991/icadme-15.2015.86
DO  - https://doi.org/10.2991/icadme-15.2015.86
ID  - Li2015/10
ER  -