Discharge studies in solid insulation voids

Author

Danikas, M.G.

Author_Institution

ASEA Brown Boveri Res. Center, Baden, Switzerland

fYear

1990

fDate

28-31 Oct 1990

Firstpage

249

Lastpage

254

Abstract

Partial discharge currents are studied with the aid of a digitizer for voids of various depths and constant diameter in solid insulation. Voids of 0.16, 0.32, 0.48, and 0.64 mm depth were tested. With the present arrangement, risetimes below 1 ns are measured. The results indicate a streamer mechanism taking place in the voids enclosed in solid insulation. Pedersen´s theory for ellipsoidal voids seems to agree somewhat better with experimental values than the classical capacitive model

Keywords

partial discharges; 0.16 to 0.64 mm; 1 ns; Pedersen´s theory for ellipsoidal voids; partial discharge currents; risetimes; solid insulation voids; streamer mechanism; Capacitance measurement; Charge measurement; Circuits; Current measurement; Electrodes; Fault location; Insulation; Partial discharges; Resistors; Solids;

fLanguage

English

Publisher

ieee

Conference_Titel

Electrical Insulation and Dielectric Phenomena, 1990. Annual Report., Conference on

Conference_Location

Pocono Manor, PA

Type

conf

DOI

10.1109/CEIDP.1990.201350

Filename

201350

Link To Document

https://search.isc.ac/dl/search/defaultta.aspx?DTC=49&DC=3050921