On Excess Current During and After Partial Discharge Activity
Paper i proceeding, 2014

Among the factors influencing partial discharge (PD) activity in insulation systems, deposition of electric charges on dielectrics significantly impact the subsequent behaviour. This work presents a measurement technique that allows studying the charge released during PD events by measuring the resulting excess current. The method, being similar to the dielectric response analysis, measures the current flowing through a test object before, during and after a PD event. By comparing the dielectric (capacitive) and the total currents, the charging process as well as its decay can be explored. The applicability of the method is demonstrated when analysing PD activity in a twisted-pair test object exposed to a square voltage waveforms.

Författare

Xiangdong Xu

Chalmers, Material- och tillverkningsteknik, Högspänningsteknik

Tord Bengtsson

Chalmers, Material- och tillverkningsteknik, Högspänningsteknik

Jörgen Blennow

Chalmers, Material- och tillverkningsteknik, Högspänningsteknik

Stanislaw Gubanski

Chalmers, Material- och tillverkningsteknik, Högspänningsteknik

Conference on Electrical Insulation and Dielectric Phenomena Annual Report - 2014 IEEE Conference on Electrical Insulation and Dielectric Phenomena (CEIDP), Des Moines, IA

0084-9162 (ISSN)

27-30

Ämneskategorier

Materialteknik

Elektroteknik och elektronik

Styrkeområden

Energi

Materialvetenskap

DOI

10.1109/CEIDP.2014.6995884

ISBN

978-1-4799-7525-9

Mer information

Skapat

2017-10-07