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DC Breakdown of XLPE Modulated by Space Charge and Temperature Dependent Carrier Mobility.

Authors :
Akram, Shakeel
Bhutta, M. Shoaib
Zhou, Kai
Meng, Pengfei
Castellon, Jerome
Wang, Peng
Rasool, Ghulam
Aamir, M.
Nazir, M. Tariq
Source :
IEEE Transactions on Dielectrics & Electrical Insulation. Oct2021, Vol. 28 Issue 5, p1514-1522. 9p.
Publication Year :
2021

Abstract

In this paper, the dependence of XLPE electrical breakdown on carrier mobility controlled by both electric field and temperature is evaluated by simulations and experiments. The molecular chain displacement model incorporating the thermoelectric effect of carrier mobility is examined to elucidate the experimental results. Trapping and de-trapping characteristics of space charge and mobility dynamics are modeled using hopping and Poole-Frenkel mechanisms. The experimental outcomes reveal that the DC electrical breakdown reduces with corresponding increment in temperature and thickness. Trapping parameters are estimated from experiments for simulations. The DC breakdown strength from experiments represents an inverse power relation with both the insulation thickness and temperature. The simulation results of molecular chain model with hopping mobility express more permanence with experimental results in comparison with Poole-Frenkel mobility. [ABSTRACT FROM AUTHOR]

Details

Language :
English
ISSN :
10709878
Volume :
28
Issue :
5
Database :
Academic Search Index
Journal :
IEEE Transactions on Dielectrics & Electrical Insulation
Publication Type :
Academic Journal
Accession number :
153764021
Full Text :
https://doi.org/10.1109/TDEI.2021.009563