Space charge controlled electric field preceeding 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

electric tree

tree inception

space charge

Author

Yuesheng Zheng

Chalmers, Materials and Manufacturing Technology, High Voltage Engineering

Yuriy Serdyuk

Chalmers, Materials and Manufacturing Technology, High Voltage Engineering

Stanislaw Gubanski

Chalmers, Materials and Manufacturing Technology, High Voltage Engineering

Proceedings of International Conference on Properties and Applications of Dielectric Materials

paper SC1-7

Areas of Advance

Energy

Subject Categories

Other Electrical Engineering, Electronic Engineering, Information Engineering

ISBN

978-1-4799-8902-7

More information

Created

10/7/2017