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Standard gas for analysis of dissolved gases in transformer oil
Analyzing the composition and content of dissolved gas in oil is one of the most effective measures to monitor the safe operation of oil-filled electrical equipment. The use of gas chromatography to analyze dissolved gas in oil monitoring the safe operation of oil-filled electrical equipment has been used for many years in China.
Analytical standard
DL/T 722-2014 Guide for analysis and determination of dissolved gases in transformer oil
DL/T 703-2015 Determination of gas content in insulating oil by gas chromatography
GB/T 17623-2017 Insulation oil -- Determination of dissolved gas component content by gas chromatography
IEC 60599 Guidelines for the interpretation of the analysis of soluble and free gases in operational oil-filled electrical equipment
IEC 60567 Guide for gas sampling and analysis of free and dissolved gases in oil-filled electrical equipment
Common components of this class of standard gases
| Components name | Balance gas |
| Carbon monoxide (CO) | Air：O2+N2 N2 |
| Hydrogen (H2) | |
| Carbon dioxide (CO2) | |
| Methane (CH4) | |
| Ethylene (C2H4) | |
| Ethane (C2H6) | |
| Acetylene (C2H2) |
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