Application of biodegradable fluids as liquid insulation for distribution and power transformers

García, Belén; Ortiz, Alfredo; Estébanez, Carlos Javier Renedo; Burgos, Juan Carlos; Gomez, Diego A.; Rosa, Daniel Perez

doi:10.1109/eeeic/icpseurope49358.2020.9160569

Cited by 3 publications

(2 citation statements)

References 21 publications

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“…Although numerous studies have been published about ester fluids' thermal and dielectric properties [4,10], the determination of them is still an active research field.…”

Section: Properties Of Ester Fluidsmentioning

confidence: 99%

“…The use of ester fluids as a transformer's liquid insulation makes it necessary that both the manufacturers and the transformer's owners redefine the transformer's life management strategy [9][10][11][12]. This includes introducing changes in the design of the equipment and establishing different guidelines for the operation and the maintenance of these actives.…”

Section: Introductionmentioning

confidence: 99%

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Use Performance and Management of Biodegradable Fluids as Transformer Insulation

et al. 2021

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In recent years, the use of biodegradable fluids as liquid insulation for distribution and power transformers is spreading. The main biodegradable fluids used are natural and synthetic esters, although biodegradable hydrocarbons have been recently proposed. Biodegradable fluids have a much lower environmental impact than mineral oil, limiting the risk of soil contamination in leaks, which makes them a suitable solution for applications such as offshore transformers or railway transformers. Additionally, these fluids have a higher flash point than conventional mineral oils, which dramatically reduces the risk of fire and collateral damage derived from explosion and fire. Despite these advantageous factors, there are still some aspects that hinder the broadening of their use, such as the difference in thermal properties or the lack of accepted maintenance procedures for transformers that use them as liquid insulation. This paper presents the current status of biodegradable insulating fluids, analyzing some of their properties and discussing the aspects that are still to be investigated in order to make them a real alternative to petroleum-based fluids.

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“…Although numerous studies have been published about ester fluids' thermal and dielectric properties [4,10], the determination of them is still an active research field.…”

Section: Properties Of Ester Fluidsmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Use Performance and Management of Biodegradable Fluids as Transformer Insulation

et al. 2021

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Evaluation of the Properties of Mixtures of Aromatic Mineral Oil and Synthetic Ester for High-Voltage Equipment

Lyutikova

Korobeynikov

Коновалов³

2021

IEEE Trans. Dielect. Electr. Insul.

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Influence of Molecule Structure on Lightning Impulse Breakdown of Ester Liquids

Xia

Cai³

et al. 2021

Energies

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Ester liquids are environmentally friendly insulating oils, and they can be used as an alternative to mineral oil in transformers, even though in most countries spills of ester oils must be treated like spills of mineral oil. Furthermore, the breakdown characteristics of ester liquids are worse than those of mineral oils in heterogeneous electric fields. In this paper, we present a comprehensive experimental research on both positive and negative lightning impulse breakdown properties in point-plane geometries with gaps varying from 1 mm to 50 mm. The breakdown voltages and streamer velocities of five kinds of ester liquids, including natural ester, synthetic ester, and three kinds of single component esters have been measured. The results show that the double bonds have no effect on the breakdown voltage of ester liquids. The average streamer velocities of mono-esters are faster than that of other esters under positive polarity, and the breakdown voltages of all esters are close.

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Application of biodegradable fluids as liquid insulation for distribution and power transformers

Cited by 3 publications

References 21 publications

Use Performance and Management of Biodegradable Fluids as Transformer Insulation

Use Performance and Management of Biodegradable Fluids as Transformer Insulation

Evaluation of the Properties of Mixtures of Aromatic Mineral Oil and Synthetic Ester for High-Voltage Equipment

Influence of Molecule Structure on Lightning Impulse Breakdown of Ester Liquids

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