Simulation of Surface Charge Effect on Impulse Flashover Characteristics of Outdoor Polymeric Insulators
Journal article, 2010

Effect of pre-deposited surface charges on impulse flashover characteristics of a polymeric insulator is studied by means of computer simulations utilizing a model based on criteria for streamer inception, propagation and sustenance. A parametric study is performed to investigate the influences imposed by magnitude and polarity of the charge, its location on insulator surface and properties of insulator material on its flashover voltages. The obtained results are analyzed in terms of electric field distributions in the vicinity of the insulator surface and are compared with experimental data available in the literature.

electrostatic field

impulse flashover voltage

streamer criterion

breakdown

Surface charging

polymeric insulator

Author

Sarath Kumara

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

IEEE Transactions on Dielectrics and Electrical Insulation

1070-9878 (ISSN)

Vol. 17 6 1754-1763

Subject Categories

Electrical Engineering, Electronic Engineering, Information Engineering

DOI

10.1109/TDEI.2010.5658226

More information

Created

10/6/2017