scholarly journals Dissolved Gas Analysis in Transformer Oil Using Pt-Doped WSe2 Monolayer Based on First Principles Method

IEEE Access ◽  
2019 ◽  
Vol 7 ◽  
pp. 72012-72019 ◽  
Author(s):  
Zhenwei Chen ◽  
Xiaoxing Zhang ◽  
Hao Xiong ◽  
Dachang Chen ◽  
Hongtu Cheng ◽  
...  
Keyword(s):  
First Principles ◽  
Gas Analysis ◽  
Transformer Oil ◽  
Dissolved Gas ◽  
Dissolved Gas Analysis ◽  
First Principles Method

scholarly journals First-Principles Insight into Pd-Doped ZnO Monolayers as a Promising Scavenger for Dissolved Gas Analysis in Transformer Oil

ACS Omega ◽  
2020 ◽  
Vol 5 (28) ◽  
pp. 17801-17807 ◽  
Author(s):  
Qian Zhou ◽  
Guozhi Zhang ◽  
Shuangshuang Tian ◽  
Xiaoxing Zhang
Keyword(s):  
First Principles ◽  
Gas Analysis ◽  
Transformer Oil ◽  
Dissolved Gas ◽  
Dissolved Gas Analysis ◽  
Doped Zno ◽  
Insight Into

Condition Monitoring of High Voltage Transformer using Dissolved Gas Analysis Methods

2021 ◽  
Vol 9 (VI) ◽  
pp. 1759-1770
Author(s):  
Dayyala Ravi
Keyword(s):  
Power Transmission ◽  
Power Transformer ◽  
Accurate Method ◽  
Mineral Oil ◽  
Gas Analysis ◽  
Transformer Oil ◽  
Dissolved Gas ◽  
Voltage Transformer ◽  
Transformer Protection ◽  
Dissolved Gas Analysis

Power transformer plays a significant role in the entire power transmission network; thus, transformer protection requires more attention for fault free electric supply. when the mineral oil and insulation inside the transformer is subjected to high thermal and electrical stresses, gases are created by the decay of mineral oil and cellulose. Different gases create different faults, Identification of faults inside the power transformer before they occur reduces its failure rate during its service period. For Knowing the fault condition of power transformer, Dissolved Gas Analysis (DGA) is proven to be as accurate method based on combination of concentration of gases like CO, CO2, H2, C2H6, C2H4, C2H2 etc., Dissolved gas analysis is the most important test in determining the fault condition of a transformer and it is the first indicator of a problem and can identify deteriorating insulation and oil, overheating hot spots, partial discharge and arcing. For developing this DGA Techniques, the MATLAB GUIDE interface can be used for making easy interaction between the user and software developed. This software is designed using some conditional statements and logical functions to get the type of faults in transformers based on the concentration of gases in transformer oil. The faults in transformer using dissolved gases analysis are detected using methods such as key gas, Roger’s methods, IEC ratio, Doernenburg ratio, Duval triangle and the Combined DGA methods. In this paper, these four methods of dissolved gas analysis (DGA) are presented and explained briefly.

Dissolved Gas Analysis (DGA) of Thermally Aged Blended Transformer Oil

2020 ◽  
Author(s):  
Manas Chakraborty ◽  
Niharika Baruah ◽  
Rohith Sangineni ◽  
Sisir Kumar Nayak ◽  
Prabhat Kumar Maiti
Keyword(s):  
Gas Analysis ◽  
Transformer Oil ◽  
Dissolved Gas ◽  
Dissolved Gas Analysis
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