Loss Current Studies of Partial Discharge Activity
Artikel i vetenskaplig tidskrift, 2015

Partial discharge measurements have important applications in evaluating insulation systems as well as for dielectric materials studies. This work investigates a measurement technique to study partial discharge activity by measuring the PD loss current. The method is similar to dielectric response measurement and measures the current through a test object with and without PD. By comparing the dielectric current and the discharge current, all conduction processes, both fast and slow, can be explored. This is in contrast to traditional pulse PD detections, where only the fast PD transients have been measured. The method is demonstrated through measurements of PDs appearing in twisted pair and needle-plate test objects under sinusoidal and square wave voltage excitations. Comparisons are made to results of simultaneously employed traditional pulse PD detection technique.

PD pulse detection

dielectric response

PD loss current

AWIS

Partial discharge

current integration

Författare

Xiangdong Xu

Chalmers, Material- och tillverkningsteknik, Högspänningsteknik

Tord Bengtsson

Chalmers, Material- och tillverkningsteknik, Högspänningsteknik

Thomas Hammarström

Chalmers, Material- och tillverkningsteknik, Högspänningsteknik

Jörgen Blennow

Chalmers, Material- och tillverkningsteknik, Högspänningsteknik

Stanislaw Gubanski

Chalmers, Material- och tillverkningsteknik, Högspänningsteknik

IEEE Transactions on Dielectrics and Electrical Insulation

1070-9878 (ISSN)

Vol. 22 472-481

Drivkrafter

Hållbar utveckling

Ämneskategorier

Materialteknik

Elektroteknik och elektronik

Styrkeområden

Energi

Materialvetenskap

DOI

10.1109/TDEI.2014.004581