Analysis of a new sample configuration for the growth and study of vented water trees [in LDPE]

Author

King, Joseph A. ; Cumberbatch, Ellis ; Kim, Sam ; Paulos, Todd

Author_Institution

Dept. of Eng., Harvey Mudd Coll., Claremont, CA, USA

Volume

26

Issue

2

fYear

1991

fDate

4/1/1991 12:00:00 AM

Firstpage

285

Lastpage

290

Abstract

A new sample configuration for the growth and analysis of vented water trees is reported. The test geometry is a variation of the water electrode and utilizes a cold-pressed cut whose depth varies from end-to-end. An analysis of the electric field associated with the sample geometry is provided with a description of the morphology of the trees grown. Evidence is presented that indicates singularities are not the only field characteristic which define tree morphology. Results also indicate that the regions within ~3 μm of the initiation sites contain microvoid concentrations orders of magnitude higher than the bulk of the treed volume

Keywords

electric breakdown of solids; insulation testing; organic insulating materials; polymers; cold-pressed cut; initiation sites; microvoid concentrations; morphology; sample configuration; sample geometry; test geometry; vented water trees; Blades; Data analysis; Educational institutions; Electrodes; Electrons; Fixtures; Geometry; Materials testing; Morphology; Trees - insulation;

fLanguage

English

Journal_Title

Electrical Insulation, IEEE Transactions on

Publisher

ieee

ISSN

0018-9367

Type

jour

DOI

10.1109/14.78330

Filename

78330