Reducing variability in inclined-plane tracking test results

Author

Alghamdi, A.S.G. ; Auckland, D.W. ; Risino, A.J. ; Varlow, B.R.

Author_Institution

Div. of Electr. Eng., Manchester Univ., UK

Volume

3

Issue

3

fYear

1996

fDate

6/1/1996 12:00:00 AM

Firstpage

439

Lastpage

443

Abstract

Factors which cause variability in the results of inclined-plane tracking tests have been investigated. The effects of introducing shunt or stray capacitance across the test specimen, or of varying the contaminant flow rate, are measured. The discharge energy to the time of observation of initial damage shows less variability than the time-to-track criterion, and may be a more appropriate criterion for comparing the track resistance of materials

Keywords

insulation testing; organic insulating materials; power cable insulation; surface discharges; contaminant flow rate; discharge energy; inclined-plane tracking test results; organic insulating materials; outdoor conditions; polyester resin; power system applications; shunt capacitance; stray capacitance; surface discharges; test specimen; time-to-track criterion; track resistance; variability reduction; Circuit testing; Dielectrics and electrical insulation; Electric breakdown; Electric resistance; Insulation life; Moisture; Surface contamination; Surface resistance; Temperature; Voltage;

fLanguage

English

Journal_Title

Dielectrics and Electrical Insulation, IEEE Transactions on

Publisher

ieee

ISSN

1070-9878

Type

jour

DOI

10.1109/94.506218

Filename

506218