Space charge controlled electric field preceding inception of electric tree in XLPE at AC voltage
Paper in proceedings, 2015
Electric fields associated with dynamic space charges injected from metallic needle electrode immersed into XLPE sample are analyzed by means of computer simulations. Field distributions in the material are calculated utilizing bipolar charge transport model. It is shown that the accumulated space charge becomes significant with time and affects the electric field distribution in the sample. The obtained magnitudes and profiles of the resulting fields are discussed focusing on possible mechanisms of electric tree inception in the material.
charge transport
electric field
space charge
tree inception
electric tree
Author
Y. Zheng
Fuzhou University
Yuriy Serdyuk
Chalmers, Materials and Manufacturing Technology, High Voltage Engineering
Stanislaw Gubanski
Chalmers, Materials and Manufacturing Technology, High Voltage Engineering
Proceedings of the 11th IEEE International Conference on the Properties and Applications of Dielectric Materials, ICPADM 2015, Sydney, Australia, 19-22 July 2015
132-135
Subject Categories
Electrical Engineering, Electronic Engineering, Information Engineering
DOI
10.1109/ICPADM.2015.7295226
ISBN
978-1-4799-8903-4