On Excess Current During and After Partial Discharge Activity
Paper in proceedings, 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.

Author

Xiangdong Xu

Chalmers, Materials and Manufacturing Technology, High Voltage Engineering

Tord Bengtsson

Chalmers, Materials and Manufacturing Technology, High Voltage Engineering

Jörgen Blennow

Chalmers, Materials and Manufacturing Technology, High Voltage Engineering

Stanislaw Gubanski

Chalmers, Materials and Manufacturing Technology, High Voltage Engineering

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

Subject Categories

Materials Engineering

Electrical Engineering, Electronic Engineering, Information Engineering

Areas of Advance

Energy

Materials Science

DOI

10.1109/CEIDP.2014.6995884

ISBN

978-1-4799-7525-9

More information

Created

10/7/2017