Investigation of critical parameters of mixed insulating fluids

Radhika, R. V.; Iruthayarajan, M. Willjuice; Pakianathan, P. Samuel

doi:10.1109/iccpct.2014.7054754

Cited by 10 publications

(5 citation statements)

References 14 publications

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“…The major technical areas (with respect to the use of vegetable oils as insulation liquid in transformers), which need further attention is listed as following [5,[42][43][44][45][66][67][68][69][70][71][72][73][74][75][76][77][78][79][80][81][82][83][84][85]: (i) More studies and research is needed to the reduce the production cost, develop low cost feed stocks and identify potential markets in order to balance cost and availability. (ii) Continued transformer performance and durability in a variety of transformer types and sizes need to be developed to increase manufacture and consumer confidence.…”

Section: Technical Difficultiesmentioning

confidence: 99%

“…The vegetable oils are naturally obtained from seeds as well as form flowers. Many researchers and industries are performing investigations on vegetable oils for providing them as insulating oils in transformers and pollution free environment [6]. Vegetable oils have the properties like High biodegradable (495%), low toxicity, high flash points (4300 1C), fire points (4300 1C), provide lower flammability and it is considered more environmental friendly fluids [7][8][9].…”

Section: Introductionmentioning

confidence: 99%

See 1 more Smart Citation

Use of vegetable oils as transformer oils – a review

Rafiq

Zhou

et al. 2015

Renewable and Sustainable Energy Reviews

247

102

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Section: Technical Difficultiesmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Use of vegetable oils as transformer oils – a review

Rafiq

Zhou

et al. 2015

Renewable and Sustainable Energy Reviews

247

102

View full text Add to dashboard Cite

“…They are extracted naturally from seeds, flowers or less likely from other segments of fruits. Numerous investigators and industries are conducting research to examine their effectiveness as insulating fluids in HV equipment [13]. VGs are highly biodegradable (>95%), lesser toxic, lesser flammable and have an extraordinary flashpoint (>300 • C) and fire points (>300 • C).…”

Section: Introductionmentioning

confidence: 99%

Sustainable, Renewable and Environmental-Friendly Insulation Systems for High Voltages Applications

et al. 2020

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With the inception of high voltage (HV), requisites on the insulating permanence of HV equipment is becoming increasingly crucial. Mineral/synthetic oil liquid insulation—together with solid insulation materials (paper, pressboard)—is the fundamental insulation constituent in HV apparatuses; their insulation attributes perform a substantial part in a reliable and steady performance. Meanwhile, implications on the environment, scarcity of petroleum oil supplies and discarding complications with waste oil have stimulated investigators to steer their attention towards sustainable, renewable, biodegradable and environmentally friendly insulating substances. The contemporary insulating constituent’s evolution is driven by numerous dynamics—in particular, environmental obligations and other security and economic issues. Consequently, HV equipment manufacturers must address novel specifications concerning to these new standards. Renewable, sustainable and environmentally friendly insulating materials are continuously substituting conventional insulating items in the market place. These are favorable to traditional insulating materials, due to their superior functionality. The also offer explicit security and eco-friendly advantages. This article discusses cutting-edge technology of environmentally friendly insulating materials, including their fabrication, processing and characterization. The new renewable, insulating systems used in HV equipment are submitted and their fundamental gains stated in comparison with conventional insulating materials. Several experimental efforts carried out in various parts of the world are presented, offering an outline of the existing research conducted on renewable insulating systems. The significance of this article lies in summarizing prior investigations, classifying research essence, inducements and predicting forthcoming research trends. Furthermore, opportunities and constraints being experienced in the field of exploration are evidently reported. Last but not least, imminent research proposals and applications are recommended.

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“…Its cost has increased significantly over the last 20 years. Like mineral oil, other oils such as silicone oils or synthetic esters have good characteristics, but are non-renewable, poorly biodegradable and their high cost restricted their use to particular applications [3] [4]; they are therefore not considered as an alternative to mineral oils. All these new constraints have motivated the development for several years of better substitute oils to replace the mineral oils traditionally used, which are not able to provide adequate safety conditions.…”

Section: Introductionmentioning

confidence: 99%

Elaboration and Performance Analysis of a Bio-Based Insulating Liquid from Castor Oil for Power Transformers

Nkouetcha¹,

Mengounou²,

Imano³

2019

OALib

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The research for new mineral oil substitutes focuses on vegetable oils known for their biodegradability and low toxicity. This paper focuses on the development and analysis of physicochemical and dielectric properties of a bio-based insulating liquid from castor oil. Castor oil is an inedible tropical resource. It has a good annual oil yield and is widely available in developing countries. Cold pressing of castor seeds is the most appropriate non-chemical process for extracting oil. A refining process was used to remove metal and chemical residues. Refined Castor Oil was filtered and degassed in order to minimize the dissolved gases, solid particles and moisture. A transesterification operation was performed to significantly reduce viscosity oil. Finally, obtained Castor Oil Methyl Esters (COME) are finally distilled in a rotary evaporator under vacuum to remove traces of water and methanol. Physicochemical properties as visual examination, relative density, kinematic viscosity, and acidity were measured in accordance with ASTM D6871. AC Breakdown voltage was performed according to IEC 60156, and had been analyzed using Weibull distribution. Processed Castor Oil (PCO) has low viscosity than certified transformer vegetable oils (BIOTEMP, FR3) and high Dielectric Strength (74.67 kV/2.5 mm). Partial Discharges characteristics including the Partial Discharge Inception Voltage and the Partial Discharge Propagation Voltage were also investigated according to the recommendations of IEC 61294. PCO has satisfactory properties for their use as an insulating oil for transformer.

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Investigation of critical parameters of mixed insulating fluids

Cited by 10 publications

References 14 publications

Use of vegetable oils as transformer oils – a review

Use of vegetable oils as transformer oils – a review

Sustainable, Renewable and Environmental-Friendly Insulation Systems for High Voltages Applications

Elaboration and Performance Analysis of a Bio-Based Insulating Liquid from Castor Oil for Power Transformers

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