Make use of UV/VIS spectrophotometer to determination of dissolved decay products in mineral insulating oils for transformer remnant life estimation with ANN

Malik, Hasmat; Yadav, Amit Kumar; Tarkeshwar,; Jarial, R. K.

doi:10.1109/indcon.2011.6139574

Cited by 10 publications

(4 citation statements)

References 9 publications

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“…As the color index of diesel oil increases, the transmittance spectra decrease. Transformer Oil An improvement on the UV-Vis spectroscopy approach related to ASTM D 6802 involves introducing an ANN to estimate the remnant lifespan of transformers [ 69 ]. The spectral response of the insulating oil can be instantly measured with cheaper equipment, and anyone in the same field can conduct the test.…”

Section: Methods For Color Measurementmentioning

confidence: 99%

The Amber-Colored Liquid: A Review on the Color Standards, Methods of Detection, Issues and Recommendations

Hadi

Ker

Thiviyanathan

et al. 2021

Sensors

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For most natural or naturally-derived liquid products, their color reflects on their quality and occasionally affects customer preferences. To date, there are a few subjective and objective methods for color measurement which are currently utilized by various industries. Researchers are also improving these methods and inventing new methods, as color is proven to have the ability to provide various information on the condition and quality of the liquid. However, a review on the methods, especially for amber-colored liquid, has not been conducted yet. This paper presents a comprehensive review on the subjective and objective methods for color measurement of amber-colored liquids. The pros and cons of the measurement methods, the effects of the color on customer preferences, and the international industry standards on color measurements are reviewed and discussed. In addition, this study elaborates on the issues and challenges related to the color measurement techniques as well as recommendations for future research. This review demonstrates that the existing color measurement technique can determine the color according to the standards and color scales. However, the efforts toward minimizing the complexity of the hardware while maximizing the signal processing through advanced computation are still lacking. Therefore, through this critical review, this review can hopefully intensify the efforts toward finding an optimized method or technique for color measurement of liquids and thus expedite the development of a portable device that can measure color accurately.

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Section: Methods For Color Measurementmentioning

confidence: 99%

The Amber-Colored Liquid: A Review on the Color Standards, Methods of Detection, Issues and Recommendations

Hadi

Ker

Thiviyanathan

et al. 2021

Sensors

View full text Add to dashboard Cite

show abstract

“…UV/Vis spectroscopy is an accurate technology to analyse the impurities in the dielectric material [23,24]. Since after the multiple breakdowns black impurities were generated within the HFE sample, UV/Vis was applied to quantify the variation of sample light transmittance.…”

Section: Methodsmentioning

confidence: 99%

Effect of temperature on the dielectric properties of hydrofluoroethers and fluorinated ketone

Chippendale

Lewin

et al. 2019

IET Science, Measurement & Technology

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“…Moreover, DDPs increase the thermal conductivity of oil, thereby increasing the ageing rate of transformer insulations. Therefore, monitoring of DDPs is used as an indication of degradation and provides useful information about the condition of the power transformer [8].…”

Section: Introductionmentioning

confidence: 99%

Measurement of dissolved decay products of transformer oil using D-shaped plastic optical fibre as a sensor

Razzaq

Zainuddin

Chyad³

et al. 2020

IET Science, Measurement &Amp; Technology

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Transformer oil is widely used in high-voltage transformers as a cooling and insulation medium. Electrical and thermal stresses expose transformer oil to degradation, which may produce dissolved decay products (DDPs) that are partially adsorbed on the insulation paper and accelerate the degradation of oil and paper. An evanescent field D-shaped plastic optical fibre (POF) sensor was fabricated using the side-polishing technique to detect DDPs in transformer oil. A laser light source and power meter were used in the prototype to measure the output power of the POF sensor. The measurement of DDPs was conducted on seven samples of insulating oil collected from the field. The sensor performance was evaluated based on different sensing areas, and the sensor sensitivity was measured. Results show an excellent correlation between the output power and DDPs. A correlation analysis was conducted amongst sensor output power, transformer oil refractive index and area under the absorbance curve. The performance of the sensor demonstrates improved linearity and sensitivity of 97.49% and 26.6779 µW/ RIU, respectively. The POF sensor is easily fabricated, low cost and can be used for real-time monitoring of high-voltage transformers.

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Make use of UV/VIS spectrophotometer to determination of dissolved decay products in mineral insulating oils for transformer remnant life estimation with ANN

Cited by 10 publications

References 9 publications

The Amber-Colored Liquid: A Review on the Color Standards, Methods of Detection, Issues and Recommendations

The Amber-Colored Liquid: A Review on the Color Standards, Methods of Detection, Issues and Recommendations

Effect of temperature on the dielectric properties of hydrofluoroethers and fluorinated ketone

Measurement of dissolved decay products of transformer oil using D-shaped plastic optical fibre as a sensor

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