Title :
Assessment of insulation condition of large power transformers by on-site electrical diagnostic methods
Author :
Bräunlich, Reinhold ; Hässig, Martin ; Fuhr, Jitka ; Aschwanden, Thomas
Author_Institution :
FKH Fachkommission fur Hochspannungsfragen, Zurich, Switzerland
Abstract :
This contribution describes an off-line partial discharge (PD) detection technique for large power transformers in the substation environment. It is demonstrated that off-line PD-analysis is one of the most meaningful method to assess the insulation condition of large power transformers. Details of an advanced PD-detection technique and on-site measuring procedure are described and illustrated with practical examples. The interpretation of results from PD-tests needs complementary diagnostic methods, such as dissolved gas-in-oil-analysis or integral dielectric measurements
Keywords :
insulation testing; partial discharge measurement; power transformer insulation; power transformer testing; off-line partial discharge detection; on-site electrical diagnosis; power transformer insulation; substation; Costs; Dielectrics and electrical insulation; Frequency; Partial discharge measurement; Partial discharges; Power generation; Power transformer insulation; Power transformers; Substations; Testing;
Conference_Titel :
Electrical Insulation, 2000. Conference Record of the 2000 IEEE International Symposium on
Conference_Location :
Anaheim, CA
Print_ISBN :
0-7803-5931-3
DOI :
10.1109/ELINSL.2000.845527
