Detection of moisture content in transformer oil using platinum coated on D-shaped optical fiber

Yusoff, S.F.A.Z.; Mezher, M. H.; Amiri, Iraj Sadegh; Ayyanar, N.; Vigneswaran, D.; Ahmad, Harith; Zakaria, Rozalina

doi:10.1016/j.yofte.2018.07.011

Cited by 38 publications

(12 citation statements)

References 12 publications

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“…The acidity measurement showed that mg KOH/g was between 0.01 and 0.06 during the first year of transformer in-service which is less than the maximum limit [45][46][47]. In addition, the moisture content for the same new five transformers were 7.5, 6.4, 7.1, 6.8, and 6.2 (ppm) which were not exceeded the limit value [48].…”

Section: Acidity and Moisture Measurementmentioning

confidence: 99%

Reliable Estimation for Health Index of Transformer Oil Based on Novel Combined Predictive Maintenance Techniques

et al. 2022

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Section: Acidity and Moisture Measurementmentioning

confidence: 99%

Reliable Estimation for Health Index of Transformer Oil Based on Novel Combined Predictive Maintenance Techniques

et al. 2022

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“…The refractive index (RI) detection and field intensity can be promoted by adjusting the metal nanodimers array [14,15]. Photonic crystal fiber (PCF) is thought to be a promising candidate for SPR sensor due to its flexible structure, excellent transmission characteristics, integration and miniaturization [16][17][18]. Meanwhile, the PCF-SPR sensors not only overcome the problems of immense volume and The designed PCF sensor is made up of pure silica by ultrasonic punching, the D-shaped flat surface can be fabricated by side polishing technology or controlled etching process [34,35].…”

Section: Introductionmentioning

confidence: 99%

D-shaped Photonic Crystal Fiber Based on Surface Plasmon Resonance Sensor with Metal Nanodimers Array

Jiao

Yang

et al. 2021

Preprint

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A D-shaped photonic crystal fiber (PCF) sensor with metal nanodimers array is presented and demonstrated for analyte detection with refractive index (RI) ranging from 1.28 to 1.37. In contrast to previous D-shaped PCF sensors, the coupling system is composed of Au-Ag nanodimers array, Silver (Ag) nanowires are arranged under the Gold (Au) array on the D-shaped surface, which cause the electric field within a confined volume is strongly enhanced, and the sensitivity of the surface plasmon resonance to dielectric environment of this volume to be promoted by near-field coupling. The finite element method (FEM) is adopted to numerical investigate the coupling characteristics and sensing performance of the PCF sensor in the near-infrared region. An average wavelength sensitivity (WS) of 14021 nm/RIU is attained,and a maximum WS of 16380 nm/RIU is acquired with a supernal RI resolution of 6.11×10 -6 RIU, which has an excellent application prospect in the fields of biological, biochemical and environmental detection.

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“…In recent years, optical fibre sensors have been used in many fields, such as environmental, biological and chemical, because of their various properties, including lightweight, high sensitivity, spark-free, immunity to electromagnetic interference and small size. In the field of high-voltage equipment, the researchers used optical fibre sensors to measure the ageing parameters of transformer oil such as moisture content [9,10], breakdown [11], partial discharge [12], and dissolved gas [13]. There are two main types of optical fibre sensors depending on the materials, glass optical fibre (GOF) and plastic optical fibre (POF).…”

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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Detection of moisture content in transformer oil using platinum coated on D-shaped optical fiber

Cited by 38 publications

References 12 publications

Reliable Estimation for Health Index of Transformer Oil Based on Novel Combined Predictive Maintenance Techniques

Reliable Estimation for Health Index of Transformer Oil Based on Novel Combined Predictive Maintenance Techniques

D-shaped Photonic Crystal Fiber Based on Surface Plasmon Resonance Sensor with Metal Nanodimers Array

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

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