On-site non-destructive diagnosis of in-service power cables by Polarization / Depolarization Current analysis

Author

Bhumiwat, Supatra A.

Author_Institution

Independent High Voltage Diagnostics Consultant, Auckland, New Zealand

fYear

2010

Firstpage

1

Lastpage

5

Abstract

Any problem in cable insulation system is generated by the mechanism of either conduction or polarization. By measuring depolarization current, equivalently the absorption current, in conjunction with polarization current, conduction and polarization in cable insulation system can be identified. This article provides details how to diagnose problems in power cables safely and accurately by Polarization / Depolarization Current (PDC) analysis.

Keywords

dielectric polarisation; nondestructive testing; power cable insulation; cable insulation system; in-service power cables; on-site non-destructive diagnosis; polarization/depolarization current analysis; Absorption; Cable insulation; Current measurement; Dielectric measurements; Dielectrics and electrical insulation; Optical polarization; Pollution measurement; Power cables; Power measurement; Voltage; cable insulation; conduction; depolarization; diagnosis; dielectric; polarization;

fLanguage

English

Publisher

ieee

Conference_Titel

Electrical Insulation (ISEI), Conference Record of the 2010 IEEE International Symposium on

Conference_Location

San Diego, CA

ISSN

1089-084X

Print_ISBN

978-1-4244-6298-8

Type

conf

DOI

10.1109/ELINSL.2010.5549496

Filename

5549496