Title :
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
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;
Conference_Titel :
Electrical Insulation (ISEI), Conference Record of the 2010 IEEE International Symposium on
Conference_Location :
San Diego, CA
Print_ISBN :
978-1-4244-6298-8
DOI :
10.1109/ELINSL.2010.5549496
