Field-dependent electric conductivities of silicone rubbers deduced from measured currents and surface potential decay characteristics
Artikel i vetenskaplig tidskrift, 2018

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

electric conductivity

Silicone rubber

charging current

Författare

Shahid Alam

Chalmers, Elektroteknik, Högspänningsteknik

Yuriy Serdyuk

Elnät och komponenter

Stanislaw Gubanski

Elnät och komponenter

International Journal of Polymer Analysis and Characterization

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

Vol. open access 1-9

Styrkeområden

Energi

Ämneskategorier

Textil-, gummi- och polymermaterial

Annan elektroteknik och elektronik

DOI

10.1080/1023666X.2018.1516369

Mer information

Skapat

2018-12-06