Transformer oil and modern physics

Козлов, В. К.; Туранов, А. Н.

doi:10.1109/tdei.2012.6311491

Cited by 10 publications

(4 citation statements)

References 16 publications

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“…Oil samples were analysed and characterised for their physical and chemical constituents using FTIR spectroscopy. Technology advancements have allowed for the characterisation of the physical and chemical properties of oils as dielectric insulating fluids in transformers [32,33]. To determine what molecules are present in a sample, FTIR spectroscopy uses the absorption or transmission of infrared light, which is used to differentiate between different molecules [34,35].…”

Section: Fourier Transformation Infrared (Ftir) Spectroscopymentioning

confidence: 99%

Experimental Study of the Electrical and Physiochemical Properties of Different Types of Crude Palm Oils as Dielectric Insulating Fluids in Transformers

Muangpratoom,

Suriyasakulpong,

Maneerot

et al. 2023

Sustainability

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This paper gives information on the electrical and physiochemical characteristics of six different types of palm oil compared with traditional mineral oil. We found that natural processed crude palm oil (PO-C) had a higher resistance to AC breakdown voltage than other types of palm oil, including traditional mineral oil. The results of the positive lightning impulse voltage test for PO-C were still the highest compared to other types of palm oil, including traditional mineral oil, at 58.26%. The summarised dissipation factors of all tested crude palm oils were significantly higher than those of mineral oils, which will make the palm oil less insulating, especially in PO-A palm oil (36.197%), where the values were higher than those of other oils, while mineral oil has a slightly increased dispersion factor. For relative permittivity, all palm oils were compared, and it was found that PO-C had a lower relative permittivity than the other oils. In terms of physical and chemical properties, in the moisture content test on all oils, PO-C had the percentile with the highest moisture content decrease of 58.74%. In the case of testing the surface tension value, it was found that traditional mineral oil had the highest value (48.46 m/Nm) when compared to palm oil. On the other hand, the acidity in traditional mineral oil is the lowest (0.03 mg KOH/g) compared to all palm oils. Results from studies demonstrate the possibility of using natural processed crude palm oil, or PO-C, as a replacement for traditional mineral oil. This is consistent with the results of electrical properties that show PO-C is higher than other types of palm oil and includes traditional mineral oil.

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Section: Fourier Transformation Infrared (Ftir) Spectroscopymentioning

confidence: 99%

Experimental Study of the Electrical and Physiochemical Properties of Different Types of Crude Palm Oils as Dielectric Insulating Fluids in Transformers

Muangpratoom,

Suriyasakulpong,

Maneerot

et al. 2023

Sustainability

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“…SPECTROSCOPY Advancement in instrumentation has made it possible to analyze transformer oils and characterize their physical and chemical compositions [20]. FTIR spectroscopy can be employed to analyze and characterize the physical and chemical compositions of oil samples [20].…”

Section: Fourier Transform Infrared (Ftir)mentioning

confidence: 99%

“…FTIR spectroscopy can be employed to analyze and characterize the physical and chemical compositions of oil samples [20]. FTIR is a modern spectroscopy technique that uses the molecular absorption or transmission of infrared radiation to characterize the molecules in a sample.…”

Section: Fourier Transform Infrared (Ftir)mentioning

confidence: 99%

Effect of moisture on breakdown voltage and structure of palm based insulation oils

Suleiman

Muhamad

Bashir

et al. 2014

IEEE Trans. Dielect. Electr. Insul.

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For use as insulating liquids in power transformers, palm based oils are gaining worldwide attention as biodegradable alternatives and competitors to the petroleum based oils. However, moisture ingress into insulation oils and its effect on the oil breakdown voltage (BDV) must be studied because moisture in oil can alter the physicochemical property of oil and drastically affects the breakdown voltage. This paper presents a comparative study on effect of increasing moisture content on physical structure and BDV of three palm based insulation oils (Red Palm Oil, Refined Bleached Deodorized Palm Oil (RBDPO) and Palm Fatty Acid Ester (PFAE)) at room temperature. Insulation oil is known to have the ability to sustain its good performance up to certain percentage moisture increase. In this paper, an empirical relationship between the palm based oil BDV and the percentage moisture added was developed to approximate oil BDV at various moisture increases. Fourier Transform Infrared (FTIR) Spectroscopy was employed to investigate changes in the oil samples' functional group to assess the physical changes. This equation has been tested and verified. This equation can be used to estimate the BDV of the palm based insulation oils as their percentage moisture increases.Index Terms -Palm oil, transformer, insulation, palm fatty acid ester, refined bleached deodorized palm oil, Fourier transform infrared spectroscopy, breakdown voltage.

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“…These techniques can be complemented by some intelligent techniques to draw a conclusion about the degradation degree of the fluid under consideration. Although some other techniques have been proposed, they have not gained momentum [13].…”

Section: Introductionmentioning

confidence: 99%

Fluid Degradation Measurement Based on a Dual Coil Frequency Response Analysis

Sánchez‐Palencia

Castilla

Sánchez-Fernández

et al. 2020

Sensors

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Electrical industry uses oils for cooling and insulation of several machines, such as power transformers. In addition, it uses water for cooling some synchronous generators. To avoid malfunctions in these assets, fluid quality should be preserved. To contribute to this aim, a sensor that detects changes in fluid composition is presented. The designed sensor is like a single-phase transformer whose magnetic core is the fluid whose properties will be measured. The response of this device to a frequency sweep is recorded. Through a comparison between any measurement and a reference one corresponding to a healthy state, pollutants presence, such as water in oil or salt in water, can be measured. The performance of the sensor was analyzed through simulation. In addition, a prototype was built and tested measuring water concentration in oil and salt content in water. The correlation between pollutant concentration measured with the sensor and known pollutant concentrations is good.

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Transformer oil and modern physics

Cited by 10 publications

References 16 publications

Experimental Study of the Electrical and Physiochemical Properties of Different Types of Crude Palm Oils as Dielectric Insulating Fluids in Transformers

Experimental Study of the Electrical and Physiochemical Properties of Different Types of Crude Palm Oils as Dielectric Insulating Fluids in Transformers

Effect of moisture on breakdown voltage and structure of palm based insulation oils

Fluid Degradation Measurement Based on a Dual Coil Frequency Response Analysis

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