Field-dependent electric conductivities of silicone rubbers deduced from measured currents and surface potential decay characteristics
Journal article, 2019

Measurements of DC electric conductivities of four types of silicone rubber-based polymers for use in high voltage insulation systems of power components are reported. The field dependences of the conductivities obtained by two different techniques, namely by utilizing steady-state currents through materials’ samples placed between metallic electrodes and by employing surface potential decay characteristics in an open circuit configuration, are compared and discussed. It is shown that the surface potential decay technique allows for a wider range of electric field strength and reduces the time span of the measurements.

surface potential decay

Silicone rubber

charging current

electric conductivity

Author

Shahid Alam

Chalmers, Electrical Engineering, High Voltage Engineering

Yuriy Serdyuk

Chalmers, Electrical Engineering, Electric Power Engineering, Power grids and Components

Stanislaw Gubanski

Chalmers, Electrical Engineering, Electric Power Engineering, Power grids and Components

International Journal of Polymer Analysis and Characterization

1023-666X (ISSN) 1563-5341 (eISSN)

Vol. 24 1 54-62

Areas of Advance

Energy

Subject Categories

Textile, Rubber and Polymeric Materials

Other Electrical Engineering, Electronic Engineering, Information Engineering

DOI

10.1080/1023666X.2018.1516369

More information

Latest update

6/4/2019 1