Study of Partial Discharge Activity by Excess Current
Artikel i vetenskaplig tidskrift, 2015

Measurements of partial discharges (PD) play an important role in study of dielectric materials. This work applies a measurement system based on dielectric response technique to study an excess current associated with PD activity, which appears during and after PD activity and shows some prominent properties. The value of such a measurement is demonstrated through studies of two types of test objects, twisted pairs and cavity specimens. A simultaneous use of pulse PD detection in the study shows a correlation between changes in PD amplitudes and non-PD excess current levels. It is concluded that the used methodology can serve as an important complement to the traditionally used pulse PD detection.

AWIS

dielectric response

PD pulse detection.

excess current

Partial discharge

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 5 3028-3036 7311085

Ämneskategorier

Materialteknik

Elektroteknik och elektronik

Styrkeområden

Energi

Materialvetenskap

DOI

10.1109/TDEI.2015.005136

Mer information

Skapat

2018-01-24