Comparative evaluation of alternative fluids for power transformers

Fernández, Inmaculada; Ortiz, Alfredo; Delgado, F.; Estébanez, Carlos Javier Renedo; Pérez, S.

doi:10.1016/j.epsr.2013.01.007

Cited by 186 publications

(88 citation statements)

References 20 publications

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“…This kind of liquids are divided in four groups: high molecular weight hydrocarbons, silicone-based oils, vegetal oils and synthetic esters. All of them have an ignition point over 300ºC, but only the last two types are biodegradable [1]. To determine the cooling capacity of these fluids in a power transformer, a numerical analysis can be carried out.…”

Section: Introductionmentioning

confidence: 99%

Numerical analysis of the hot-spot temperature of a power transformer with alternative dielectric liquids

Santisteban

Delgado

Ortiz

et al. 2017

IEEE Trans. Dielect. Electr. Insul.

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Section: Introductionmentioning

confidence: 99%

Numerical analysis of the hot-spot temperature of a power transformer with alternative dielectric liquids

Santisteban

Delgado

Ortiz

et al. 2017

IEEE Trans. Dielect. Electr. Insul.

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“…R. Karthik et al [71] in September 2012 investigated the degradation of insulation paper with mixture dielectric fluids and recommended mixture of esters and mineral oil rather than using ester or mineral oil alone. In May 2013, I.Fernandez et al [72] explained the mixture dielectric properties of various proportions and claimed mineral oil mixed with esters as less than 20% of its volume is exhibiting desired properties and will be a recommended choice for transformer insulation technology.…”

Section: Miscible Studiesmentioning

confidence: 99%

Review on ester based dielectric liquids for transformer insulation technology

Rao

Sood

Jarial

2015

2015 International Conference on Condition Assessment Techniques in Electrical Systems (CATCON)

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Ester based dielectric fluids were found to beat mineral oils in thermal and environmental aspects. Hence there is a great need of research on ester oils. The present paper is a review of 84 published articles. Owing to length of the document; exceptions were made to include a citation if a publication contributed a significantly technical viewpoint on usage of ester oils for transformer insulation technology. The selected literature has been classified into relevant sections to make researchers convenient in obtaining literature. Some citations spanned for more than one section, efforts were made to include such citations in one of the most relevant section. The present paper will be useful to the industry and researchers to know the significance and need of ester based dielectrics to the present day scenario.

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“…In recent years mineral oil is replaced by biodegradable, environmental friendly ester oils. Biodegradable oils have good electrical strength, high flash point, high fire point and it will not produce any hazardous byproducts during fire [18,19]. If biodegradable, eco-friendly ester oils replace MO, then there is a need to study the effect of moisture on ester oils before it is used as a LI system in DTs.…”

Section: Introductionmentioning

confidence: 99%