Loss Current Studies of Partial Discharge Activity
Journal article, 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

Author

Xiangdong Xu

Chalmers, Materials and Manufacturing Technology, High Voltage Engineering

Tord Bengtsson

Chalmers, Materials and Manufacturing Technology, High Voltage Engineering

Thomas Hammarström

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

IEEE Transactions on Dielectrics and Electrical Insulation

1070-9878 (ISSN)

Vol. 22 1 472-481

Driving Forces

Sustainable development

Subject Categories

Materials Engineering

Electrical Engineering, Electronic Engineering, Information Engineering

Areas of Advance

Energy

Materials Science

DOI

10.1109/TDEI.2014.004581

More information

Created

10/7/2017