Název:	Environmental impact and aging properties of natural and synthetic transformer oils under electrical stress conditions
Autoři:	Kurzweil, Peter Schell, Christian Haller, Rainer Trnka, Pavel Hornak, Jaroslav
Citace zdrojového dokumentu:	KURZWEIL, P. SCHELL, CH. HALLER, R. TRNKA, P. HORNAK, J. Environmental impact and aging properties of natural and synthetic transformer oils under electrical stress conditions. Advanced Sustainable Systems, 2021, roč. 5, č. 8, s. 1-10. ISSN: 2366-7486
Datum vydání:	2021
Nakladatel:	Wiley
Typ dokumentu:	článek article
URI:	2-s2.0-85106208929 http://hdl.handle.net/11025/45603
ISSN:	2366-7486
Klíčová slova v dalším jazyce:	breakdown voltage;decomposition products;ecotoxicity;power transformer oils;vegetable oils
Abstrakt v dalším jazyce:	Against the background of environmental compatibility and unrestricted technical usability, synthetic, and natural transformer oils are critically compared in long-term tests under high voltage using electrical and instrumental analytical methods. Synthetic alkyl esters of pentaerythrol appear to be sustainable and sometimes superior substitutes for mineral oils in terms of chemical stability, viscosity, permittivity, and heat transport. Natural esters of unsaturated fatty acids are found to be unsuitable for equipment exposed to moist air. Adsorbed water appears to be a general problem in transformer oils. The aging mechanisms and molecular changes during long-term operation include radical reactions, and the formation, isomerization and cleavage of CC bonds. Extensive material data are provided.
Práva:	© authors
Vyskytuje se v kolekcích:	Články / Articles (RICE) Články / Articles (KET) Články / Articles (KEE) OBD

Všechny záznamy v DSpace jsou chráněny autorskými právy, všechna práva vyhrazena.