Contribution to the testing of treeing inception in needle arrangements manufactured by different methods

Author

Bozzo, R. ; Sierota, A.

Author_Institution

Dept. of Electr. Eng., Genoa Univ., Italy

fYear

1988

fDate

5-8 June 1988

Firstpage

351

Lastpage

354

Abstract

A round robin test (RRT) on long-term electrical treeing formation in low-density polyethylene (LDPE) is in progress under the coordination of the CIGRE WG 15-06-03. For such a procedure it is required that the effects of the specimen preparation process on the final results should be minimal and that the testing procedure be able to distinguish among different materials. Some results of short-time treeing tests that address these issues are reported and discussed. It is found that the treeing-inception voltage (TIV) is a parameter characteristic of the particular material and that the average TIV parameter is little influence by specimen manufacturing procedures.<>

Keywords

electric breakdown of solids; insulation testing; organic insulating materials; polymers; LDPE; long-term electrical treeing; needle arrangements; round robin test; short-time treeing tests; specimen preparation; testing; treeing inception; treeing-inception voltage; Electric resistance; Manufacturing; Needles; Optical microscopy; Ovens; Polyethylene; Slabs; Testing; Trees - insulation; Voltage;

fLanguage

English

Publisher

ieee

Conference_Titel

Electrical Insulation, 1988., Conference Record of the 1988 IEEE International Symposium on

Conference_Location

Cambridge, MA, USA

ISSN

1089-084X

Type

conf

DOI

10.1109/ELINSL.1988.13939

Filename

13939