Title :
The duval triangle for load tap changers, non-mineral oils and low temperature faults in transformers
Author_Institution :
IREQ, Varennes, QC
Abstract :
New versions of the Duval triangle for equipment filled with mineral oil are proposed for load tap changers of the oil type, equipment filled with non- mineral oils, and for low-temperature faults where stray gassing of oils may interfere with diagnostics.
Keywords :
power system faults; transformer oil; Duval triangle; load tap changers; low temperature faults; nonmineral oils; stray gassing; transformers; Dissolved gas analysis; Fault diagnosis; IEC standards; Minerals; Oils; Partial discharges; Petroleum; Solvents; Temperature; Transformers; Transformer, dissolved gas analysis, load tap changers, non-mineral oils, low temperature; faults;
Journal_Title :
Electrical Insulation Magazine, IEEE
DOI :
10.1109/MEI.2008.4665347
