Development of a spectrofluorimetry-based device for determining the acetylene content in the oils of power transformers

Quintella, Cristina M.; Meira, Marilena; Silva, Weidson Leal; Filho, Rogério Guerra Diógenes; Araújo, André Luís Calado; Júnior, Elias T.S.; Sales, Lindolfo J.O.

doi:10.1016/j.talanta.2013.08.018

Cited by 11 publications

(4 citation statements)

References 4 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…DGA-based methods for analysing the health of transformer mixed insulation systems are an important element in maintaining a sustainable energy system due to the fact that a precise diagnosis of incipient faults is appropriate for sustainable development and necessary in guaranteeing a supply of electrical energy to users and consumers [22]. Besides DGA-based methods are other techniques for identifying the defects that appear in power transformers, focused on frequency response analysis (FRA), acoustic fingerprinting, ultrasound, spectrofluorimetry and Fourier transform infrared spectroscopy (FTIR) [37][38][39][40][41][42].…”

Section: Introductionmentioning

confidence: 99%

A Reviewed Turn at of Methods for Determining the Type of Fault in Power Transformers Based on Dissolved Gas Analysis

Aciu,

Enache,

Nițu

2024

Energies

View full text Add to dashboard Cite

Since power transformers are the most important pieces of equipment in electricity transmission and distribution systems, special attention must be paid to their maintenance in order to keep them in good condition for a long time. This paper reviews the main steps in the process of diagnosing the health of power transformer insulation, which involves the science of analysing the gases dissolved in power transformer oil for effective identification of faults. An accurate diagnosis of incipient faults is favourable to sustainable development and necessary to maintain a reliable supply of electricity. The methods presented for fault diagnosis in mineral-oil-immersed power transformers are divided into analytical and graphical methods and have been found to be simple, economical and effective. After describing the methods, both their strengths and weaknesses were identified, and over the years, the methods were complemented to provide highly accurate information, validated by field inspections. This paper focuses on practical information and applications to manage maintenance based on accurate and up-to-date data. The contents of this paper will be of particular use to engineers who manufacture, monitor and/or use high-power transformers in the energy sector, as well as to undergraduate, master’s and PhD students interested in such applications.

show abstract

Section: Introductionmentioning

confidence: 99%

A Reviewed Turn at of Methods for Determining the Type of Fault in Power Transformers Based on Dissolved Gas Analysis

Aciu,

Enache,

Nițu

2024

Energies

View full text Add to dashboard Cite

show abstract

“…In recent years, dissolved gas analysis (DGA) techniques have been widely used to detect acetylene in transformer oil [ 4 , 14 , 15 , 16 ]. DGA techniques include oil chromatography, photoacoustic spectroscopy, infrared spectroscopy, and Raman spectroscopy [ 17 , 18 , 19 , 20 , 21 ]. However, the existing traditional DGA technologies have disadvantages, such as bulky size, high power consumption, and high cost, which limit their large-scale applications.…”

Section: Introductionmentioning

confidence: 99%

Highly Sensitive MEMS Sensor Using Bimetallic Pd–Ag Nanoparticles as Catalyst for Acetylene Detection

Yuan¹,

Qiao

Yao

et al. 2022

Sensors

View full text Add to dashboard Cite

Acetylene detection plays an important role in fault diagnosis of power transformers. However, the available dissolved gas analysis (DGA) techniques have always relied on bulky instruments and are time-consuming. Herein, a high-performance acetylene sensor was fabricated on a microhotplate chip using In2O3 as the sensing material. To achieve high sensing response to acetylene, Pd–Ag core-shell nanoparticles were synthesized and used as catalysts. The transmission electron microscopy (TEM) image clearly shows that the Ag shell is deposited on one face of the cubic Pd nanoseeds. By loading the Pd–Ag bimetallic catalyst onto the surface of In2O3 sensing material, the acetylene sensor has been fabricated for acetylene detection. Due to the high catalytic performance of Pd–Ag bimetallic nanoparticles, the microhotplate sensor has a high response to acetylene gas, with a limit of detection (LOD) of 10 ppb. In addition to high sensitivity, the fabricated microhotplate sensor exhibits satisfactory selectivity, good repeatability, and fast response to acetylene. The high performance of the microhotplate sensor for acetylene gas indicates the application potential of trace acetylene detection in power transformer fault diagnosis.

show abstract

“…The analysis of dissolved C 2 H 2 output is much helpful for diagnosing the potential fault defects and types timely and effectively. [1][2][3][4][5][6][7] Therefore, great attention has been drawn to this area over the past few years. Various types of technologies including metal oxide semiconductors, 8,9 carbon nanotubes 10 and photoacoustic spectroscopy 11,12 have been adopted for C 2 H 2 detection.…”

Section: Introductionmentioning

confidence: 99%

Synthesis, characterisation and sensing properties of Sm₂O₃doped SnO₂nanorods to C₂H₂gas extracted from power transformer oil

Zhou¹,

Tang²,

Zhu³

et al. 2016

Materials Technology

View full text Add to dashboard Cite

In this paper, pure and 1.5, 2.5 and 3.5 at.-% samarium oxide (Sm 2 O 3 ) doped tin oxide (SnO 2 ) nanorods were successfully synthesised with a facile and environment friendly hydrothermal process. All the as prepared nanostructures were carefully characterised by X-ray diffraction, field emission SEM, TEM, high resolution TEM and X-ray photoelectron spectroscopy respectively. Planar sensors were further fabricated with the as synthesised samples, and their sensing properties towards acetylene gas (C 2 H 2 ), an extremely significant fault characteristic gas dissolved in oil immersed power transformers, were systematically measured. Interestingly, the sensing properties of the fabricated SnO 2 nanorod based sensor to C 2 H 2 gas can be obviously enhanced by adding Sm 2 O 3 , and the sensor doped with 3.5 at.-%Sm 2 O 3 displays the most superior sensing characteristics, including operating temperature, sensitivity, response and recovery time, etc., as compared to other three cases. All results indicate that the synthesised Sm 2 O 3 doped SnO 2 sensing material might be a promising candidate for C 2 H 2 sensing and lay a solid foundation for exploring high performance chemical gas sensor to detect C 2 H 2 gas extracted from power transformer oil.

show abstract

Development of a spectrofluorimetry-based device for determining the acetylene content in the oils of power transformers

Cited by 11 publications

References 4 publications

A Reviewed Turn at of Methods for Determining the Type of Fault in Power Transformers Based on Dissolved Gas Analysis

A Reviewed Turn at of Methods for Determining the Type of Fault in Power Transformers Based on Dissolved Gas Analysis

Highly Sensitive MEMS Sensor Using Bimetallic Pd–Ag Nanoparticles as Catalyst for Acetylene Detection

Synthesis, characterisation and sensing properties of Sm₂O₃doped SnO₂nanorods to C₂H₂gas extracted from power transformer oil

Contact Info

Product

Resources

About

Development of a spectrofluorimetry-based device for determining the acetylene content in the oils of power transformers

Cited by 11 publications

References 4 publications

A Reviewed Turn at of Methods for Determining the Type of Fault in Power Transformers Based on Dissolved Gas Analysis

A Reviewed Turn at of Methods for Determining the Type of Fault in Power Transformers Based on Dissolved Gas Analysis

Highly Sensitive MEMS Sensor Using Bimetallic Pd–Ag Nanoparticles as Catalyst for Acetylene Detection

Synthesis, characterisation and sensing properties of Sm2O3doped SnO2nanorods to C2H2gas extracted from power transformer oil

Contact Info

Product

Resources

About

Synthesis, characterisation and sensing properties of Sm₂O₃doped SnO₂nanorods to C₂H₂gas extracted from power transformer oil