Research on Thermal Aging Properties of Composite Insulating Materials in High Voltage Switchgear

DOI

10.2991/icaees-15.2015.85How to use a DOI?

Keywords

high voltage switchgear; composite insulating materials; thermo-oxidative aging; dielectric properties.

Abstract

Electrical properties, thermal stability and flammability are the important properties of insulating material in the high voltage metal-enclosed switchgear, which can affect the insulation fault of switchgear. With the development of new composite materials, it has a revolutionary impact on the switchgear insulation. In this paper, the four composite insulating materials, which are BMC, SMC, GPO-3 and epoxy resin composite, have been aged under different periods up to 1200 hours. The dielectric properties and physical and chemical property were investigated at different aging stages. The performances of the four materials and the reason of its degradation have been analyzed. According to the experiment results, with the increase of aging time, their dielectric properties are always decrease firstly, increase secondly and keep stable finally. The dielectric properties of epoxy composite are worst. Thermo-oxidative aging usually leads to the weak bond of polymer reacting with oxygen. Epoxy composite has the highest melting temperature. GPO-3 has the best flammability. BMC is well-crystallized, which has the best anti-aging properties. This study provides a basis to choose the suitable dielectric materials for the design of high voltage switchgear.

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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TY  - CONF
AU  - Yongyong Jia
AU  - Yanjun Jiang
AU  - Jinggang Yang
AU  - Guogang Zhang
PY  - 2015/07
DA  - 2015/07
TI  - Research on Thermal Aging Properties of Composite Insulating Materials in High Voltage Switchgear
BT  - Proceedings of the 3rd International Conference on Advances in Energy and Environmental Science 2015
PB  - Atlantis Press
SP  - 455
EP  - 461
SN  - 2352-5401
UR  - https://doi.org/10.2991/icaees-15.2015.85
DO  - 10.2991/icaees-15.2015.85
ID  - Jia2015/07
ER  -