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Paper: High Fill Factor Array of Piezoelectric Micromachined
Ultrasonic Transducers with Large Quality Factor

S&M Young Researcher Paper Award 2021
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Vol. 32, No. 8(2), S&M2292

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Sensors and Materials, Volume 33, Number 7(2) (2021)
Copyright(C) MYU K.K.
pp. 2415-2426
S&M2627 Research Paper of Special Issue
https://doi.org/10.18494/SAM.2021.3313
Published: July 15, 2021

Automated Dissolved Gas Analysis Report Generator for Monitoring Condition of High-voltage Transformers [PDF]

Passara Chanchotisatien and Suwilai Phumpho

(Received January 31, 2021; Accepted June 16, 2021)

Keywords: dissolved gas analysis, Power Automate, web application, DGA, report generator, SharePoint

Dissolved gas analysis (DGA) is a commonly used method that allows pending or occurring faults within transformers to be determined. DGA has been widely used for many years. There are various DGA techniques, including the evaluation of individual and total dissolved combustible gas (TDCG) concentrations, the Doernenburg method, the Rogers method, and Duval’s triangle. To facilitate the process of monitoring the condition of transformers and reduce potential human error, we discuss how to create a user-friendly system to monitor and evaluate the condition of high-voltage transformers. The system receives key gas values, which are extracted from oil samples inside transformers obtained by gas chromatography (GC), and is capable of automatically generating downloadable reports of specified transformers and gives insight on any faults found. It also visualizes the changes in extracted key gas values of transformers over time. To develop this system, the front end of the application was made with HTML and CSS, and the back end was made with JavaScript with MySQL as a database combined with Microsoft SharePoint. The automatic downloadable report generator was made with Power Automate. This system assists the monitoring of transformer conditions.

Corresponding author: Passara Chanchotisatien


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Cite this article
Passara Chanchotisatien and Suwilai Phumpho, Automated Dissolved Gas Analysis Report Generator for Monitoring Condition of High-voltage Transformers, Sens. Mater., Vol. 33, No. 7, 2021, p. 2415-2426.



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