Use of gas concentration ratios to interpret LTC & OCB dissolved gas data

Author

Jakob, Fredi ; Jakob, Karl ; Jones, Simon ; Youngblood, Rick

Author_Institution

Weidmann-ACTI Inc., Sacramento, CA, USA

fYear

2003

fDate

23-25 Sept. 2003

Firstpage

301

Lastpage

304

Abstract

Dissolved gas analysis, DGA, has been universally accepted as the preeminent diagnostic tool for location of incipient faults in oil filled transformers. DGA has more recently been applied as a diagnostic tool for predictive maintenance on load tap changers, LTC´s, and oil filled circuit breakers, OCB´s. The savings in maintenance costs based on DGA diagnostics are significant. Data interpretation for OCB and LTC dissolved gas analysis is empirical in nature and significantly different than interpretation of DGA data for main tanks. Ratios of heating to arcing gases are informative for LTC and OCB dissolved gas analysis interpretation.

Keywords

chemical analysis; fault location; maintenance engineering; oil circuit breakers; on load tap changers; transformers; cost saving; data interpretation; dissolved gas analysis; dissolved gas data; fault diagnosis; gas concentration ratios; heating-arcing ratio; incipient faults location; load tap changers; oil circuit breaker; oil filled transformers; predictive maintenance; Circuit breakers; Circuit faults; Costs; Dissolved gas analysis; Gases; Heating; On load tap changers; Petroleum; Predictive maintenance; Transformers;

fLanguage

English

Publisher

ieee

Conference_Titel

Electrical Insulation Conference and Electrical Manufacturing & Coil Winding Technology Conference, 2003. Proceedings

ISSN

0362-2479

Print_ISBN

0-7803-7935-7

Type

conf

DOI

10.1109/EICEMC.2003.1247901

Filename

1247901