Title :
Unusual conduction at oil-paper interface in transformers diagnosed by Polarization Depolarization Current (PDC) analysis
Abstract :
Unusual conductive contaminants at oil-paper interface [particles, copper sulfide deposits, debris from previous faults, etc.] of transformers can be diagnosed by on-site off-line time-domain, Polarization Depolarization Current (PDC) measurement. Some results are presented in the case studies of this document.
Keywords :
electric current measurement; oils; paper; power transformers; PDC analysis; PDC measurement; oil-paper interface; on-site off-line time-domain; polarization depolarization current analysis; polarization depolarization current measurement; transformers; unusual conductive contaminants; Copper; Current measurement; Moisture; Oil insulation; Power transformer insulation; absorption; conduction; copper sulfide; depolarization; diagnosis; interface; polarization;
Conference_Titel :
Electrical Insulation Conference (EIC), 2014
Conference_Location :
Philadelphia, PA
Print_ISBN :
978-1-4799-2787-6
DOI :
10.1109/EIC.2014.6869372
