Mineral Oil versus Vegetable Oil as Electroinsulating Fluids in Contact with Coating LacquersA thermochemical stability study

Lingvay, Iosif; Circiumaru, Gabriela; Voina, Andreea; Bors, Adriana-Mariana

Iosif Lingvay, Gabriela Circiumaru, Andreea Voina, Adriana-Mariana Bors

Mineral Oil versus Vegetable Oil as Electroinsulating Fluids in Contact with Coating LacquersA thermochemical stability study

Abstract:
The thermochemical stability of a MOL (mineral oil) electroinsulating mineral oil was studied by the gas chromatography technique, compared with a Voil (vegetable oil) electroinsulating fluid based on natural esters (oil), exposed to a longer (1000 hours) thermal treatment (110 ± 5 °C) in contact with the core transformer plate (silicon steel sheet) both blank and covered by immersion with three different types of lacquers (L-G epoxide, L-528 alkyl epoxy-melamine copolymer and L-S polyurethane). Experimentally it was noted that during the thermal treatment applied and in contact with the silicon steel sheet, the investigated oils have produced mainly C2H4, CH4 and H2. The total amount of flammable gases formed in Voil (vegetable oil) is about 7.5 time lower than in MOL. It has also been found that the lacquer coating of the silicon steel sheet does not change the mechanism of gas formation processes in the investigated oils, as well as the fact that the oxygen content of the investigated oils decreases monotonously during the thermal treatment applied due to either the formation of CO2 and CO and the oxidation processes of investigated lacquers.

Keywords:
transformers; mineral oil; vegetal oil; gas formation; coating lacquers

Issue: 2019 Volume 56, Issue 4

Pages: 951-956

Publication date: 2019/12/30

https://doi.org/10.37358/MP.19.4.5290

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This article is published under the Creative Commons Attribution 4.0 International License

Citation Styles

Cite this article as:
LINGVAY, I., CIRCIUMARU, G., VOINA, A., BORS, A., Mineral Oil versus Vegetable Oil as Electroinsulating Fluids in Contact with Coating LacquersA thermochemical stability study, Mater. Plast., 56(4), 2019, 951-956. https://doi.org/10.37358/MP.19.4.5290

Vancouver
Lingvay I, Circiumaru G, Voina A, Bors A. Mineral Oil versus Vegetable Oil as Electroinsulating Fluids in Contact with Coating LacquersA thermochemical stability study. Mater. Plast.[internet]. 2019 Dec;56(4):951-956. Available from: https://doi.org/10.37358/MP.19.4.5290

APA 6th edition
Lingvay, I., Circiumaru, G., Voina, A. & Bors, A. (2019). Mineral Oil versus Vegetable Oil as Electroinsulating Fluids in Contact with Coating LacquersA thermochemical stability study. Materiale Plastice, 56(4), 951-956. https://doi.org/10.37358/MP.19.4.5290

Harvard
Lingvay, I., Circiumaru, G., Voina, A., Bors, A. (2019). 'Mineral Oil versus Vegetable Oil as Electroinsulating Fluids in Contact with Coating LacquersA thermochemical stability study', Materiale Plastice, 56(4), pp. 951-956. https://doi.org/10.37358/MP.19.4.5290

IEEE
I. Lingvay, G. Circiumaru, A. Voina, A. Bors, "Mineral Oil versus Vegetable Oil as Electroinsulating Fluids in Contact with Coating LacquersA thermochemical stability study". Materiale Plastice, vol. 56, no. 4, pp. 951-956, 2019. [online]. https://doi.org/10.37358/MP.19.4.5290

Text
Iosif Lingvay, Gabriela Circiumaru, Andreea Voina, Adriana-Mariana Bors,
Mineral Oil versus Vegetable Oil as Electroinsulating Fluids in Contact with Coating LacquersA thermochemical stability study,
Materiale Plastice,
Volume 56, Issue 4,
2019,
Pages 951-956,
ISSN 2668-8220,
https://doi.org/10.37358/MP.19.4.5290.
(https://revmaterialeplastice.ro/Articles.asp?ID=5290)
Keywords: transformers; mineral oil; vegetal oil; gas formation; coating lacquers

RIS
TY - JOUR
T1 - Mineral Oil versus Vegetable Oil as Electroinsulating Fluids in Contact with Coating LacquersA thermochemical stability study
A1 - Lingvay, Iosif
A2 - Circiumaru, Gabriela
A3 - Voina, Andreea
A4 - Bors, Adriana-Mariana
JF - Materiale Plastice
JO - Mater. Plast.
PB - Materiale Plastice SRL
SN - 2668-8220
Y1 - 2019
VL - 56
IS - 4
SP - 951
EP - 956
UR - https://doi.org/10.37358/MP.19.4.5290
KW - transformers
KW - mineral oil
KW - vegetal oil
KW - gas formation
KW - coating lacquers
ER -

BibTex
@article{MatPlast2019P951,
author = {Lingvay Iosif and Circiumaru Gabriela and Voina Andreea and Bors Adriana-Mariana},
title = {Mineral Oil versus Vegetable Oil as Electroinsulating Fluids in Contact with Coating LacquersA thermochemical stability study},
journal = {Materiale Plastice},
volume = {56},
number = {4},
pages = {951-956},
year = {2019},
issn = {2668-8220},
doi = {https://doi.org/10.37358/MP.19.4.5290},
url = {https://revmaterialeplastice.ro/Articles.asp?ID=5290}
}

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