Measurement and simulation of PD in epoxy voids

Author

Gutfleisch, F. ; Niemeyer, L.

Author_Institution

ABB Corp. Res., Switzerland

Volume

2

Issue

5

fYear

1995

fDate

10/1/1995 12:00:00 AM

Firstpage

729

Lastpage

743

Abstract

Experimental data are presented of the development of PD activity in artificial air-filled spherical voids in epoxy resin over a period of ~6 months. The data are presented in the form of phase averaged plots of the charge distribution over the time (aging plots) and phase resolved histograms (PRPD patterns) at various aging states. They are interpreted by comparison to numerical simulations which are based on a physical discharge model. This provides insight into the physical changes in the void during aging. The simulation is the basis for a physically meaningful interpretation of the PD data. It provides rules for the identification of the defect type, the defect quantification, and an assessment of the aging stage

Keywords

ageing; epoxy insulation; partial discharges; voids (solid); 6 month; aging; air-filled spherical voids; charge distribution; defects; epoxy resin; numerical simulation; partial discharges; phase resolved histograms; Aging; Capacitors; Circuit simulation; Circuit testing; Coupling circuits; Electrodes; Epoxy resins; Insulation; Partial discharges; Signal resolution;

fLanguage

English

Journal_Title

Dielectrics and Electrical Insulation, IEEE Transactions on

Publisher

ieee

ISSN

1070-9878

Type

jour

DOI

10.1109/94.469970

Filename

469970