Identification of Stray Gassing of Inhibited and Uninhibited Mineral Oils in Transformers

Michel Duval and Thomas Heizmann
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Michel Duval: Hydro Québec Institute of Research (IREQ), 1800 Bld Lionel Boulet, Varennes, QC J3X 1S1, Canada
Thomas Heizmann: High Voltage Testing and Engineering Commission of Switzerland (FKH), Hagenholzstrasse 81, 8050 Zürich, Switzerland

Energies, 2020, vol. 13, issue 15, 1-9

Abstract: The aim and contribution of this paper is to identify with Duval Pentagon 2 the stray gassing (SG) patterns of inhibited and uninhibited mineral oils in transformers in service and in the well-established laboratory SG tests of CIGRE and ASTM, so that SG in transformers can be easily distinguished from the other types of faults occurring in them. The SG test of IEC 60296-2020 is inadequate or much less effective for that purpose.

Keywords: transformers; electrical insulating oils; mineral oils; inhibited oils; uninhibited oils; stray gassing of mineral oils; dissolved gas analysis; DGA (search for similar items in EconPapers)
JEL-codes: Q Q0 Q4 Q40 Q41 Q42 Q43 Q47 Q48 Q49 (search for similar items in EconPapers)
Date: 2020
References: View complete reference list from CitEc
Citations: View citations in EconPapers (3)

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