Results 11 to 20 of about 217,394 (261)

Research progress of online monitoring techniques for dissolved gas analysis in insulating oil [PDF]

Frontiers in Chemistry
Dissolved gas analysis (DGA) in insulating oil can achieve early warning of local discharge, overheating or arc failure in transformers. It can also quantitatively evaluate the aging degree of insulating equipment, providing a basis for formulating ...
Hua Mao, Hua Mao, Fangqiang Wang, Fangqiang Wang, Jie Wang, Jie Wang, Zeyao Ma, Zeyao Ma, Yan Wang, Yan Wang, Rui Peng, Zhi Geng, Xinsheng Lan, Xinsheng Lan   +13 more
doaj   +2 more sources

An Automatic System for Continuous Monitoring and Sampling of Groundwater Geochemistry in Earthquake-Prone Regions of SW Taiwan

Frontiers in Earth Science, 2021
Previous studies have revealed that gas compositions of fluid samples collected from southwestern Taiwan, where many hot springs and mud volcanoes are distributed along with tectonic structures, show significant variation before and after some disaster ...
Ching-Chou Fu, Chun-Wei Lai, Tsanyao Frank Yang, David R. Hilton, Cheng-Hong Chen, Vivek Walia, Arvind Kumar, Lou-Chuang Lee   +7 more
doaj   +1 more source

Diagnosis Kondisi Transformator Berbasis Analisis Gas Terlarut Menggunakan Metode Sistem Pakar Fuzzy

Jurnal EECCIS (Electrics, Electronics, Communications, Controls, Informatics, Systems), 2014
Dissolved gas analysis of transformer oil is one of the most effective ways to determine the transformer condition. Currently, there are many interpretation techniques that have been used in data processing of dissolved gas analysis results. However, all
Gatut Yulisusianto, Hadi Suyono, Rini Nurhasanah   +2 more
doaj   +1 more source

Condition Assessment of Power Transformers through DGA Measurements Evaluation Using Adaptive Algorithms and Deep Learning

Energies, 2022
Condition assessment for critical infrastructure is a key factor for the wellbeing of the modern human. Especially for the electricity network, specific components such as oil-immersed power transformers need to be monitored for their operating condition.
Dimitris A. Barkas, Stavros D. Kaminaris, Konstantinos K. Kalkanis, George Ch. Ioannidis, Constantinos S. Psomopoulos   +4 more
doaj   +1 more source

A Deep Parallel Diagnostic Method for Transformer Dissolved Gas Analysis

Applied Sciences, 2020
With the development of Industry 4.0, as a pivotal part of the power system, large-capacity power transformers are requiring fault diagnostic methods with higher intelligence, accuracy and anti-interference ability.
Xiaoxin Wu, Yigang He, Jiajun Duan
doaj   +1 more source

Analysis of the Content of Gases in Oil-Filled Equipment with Electrical Defects [PDF]

Problems of the Regional Energetics, 2018
Operational reliability assurance of oil-filled equipment is an urgent real-world problem, which is especially essential for the facilities that have exceeded their lifetime.
Shutenko O.V.
doaj   +1 more source

Power Transformer Diagnosis Based on Dissolved Gases Analysis and Copula Function

Energies, 2022
The traditional DGA (Dissolved Gas Analysis) diagnosis method does not consider the dependence between fault characteristic gases and uses the relationship between gas ratio coding and fault type to make the decision.
Xiaoqin Zhang, Hongbin Zhu, Bo Li, Ruihan Wu, Jun Jiang   +4 more
doaj   +1 more source

Analisis Perawatan Berkala Trafo Distribusi 800 kVA pada Rumah Sakit X Kota Tangerang

Elektrika, 2023
In Indonesia, electricity supply for buildings or buildings with needs above 200kVA requires a distribution transformer owned by the customer, so that electrical energy transactions are carried out on the medium voltage side of 20kV.
Ridho Alpha Kusuma, Jimmy Arimas Prayogo, Choirul Mufit   +2 more
doaj   +1 more source

Canonical Correlation Between Partial Discharges and Gas Formation in Transformer Oil Paper Insulation

Energies, 2012
Dissolved gas analysis (DGA) has been widely applied to diagnose internal faults in transformer insulation systems. However, the accuracy of DGA technique is limited because of the lack of positive correlation of the fault-identifying gases with faults ...
Jian Li, Shangyi Peng, Xi Chen, Weigen Chen   +3 more
doaj   +1 more source

Development of nominal rules on the Fuzzy Sugeno method to determine the quality of power transformer insulation oil using Dissolved Gas Analysis data

Jurnal Ilmiah SINERGI, 2023
This paper aims to develop the nominal rules on the Fuzzy Logic Method using the Sugeno-Fuzzy Inference System (FIS) for Dissolved Gas Analysis (DGA) and determine the quality of the power Transformer 1 and Transformer 6 insulating oil at the Buduran 150
Ha'imza Ha'imza, Amirullah Amirullah, Boonyang Plangklang   +2 more
doaj   +1 more source