Transformer oil vacuum degassing treatment system

Detection standards:
International standards:
IEC 60296-2003 Impregnating insulating oil for transformers and switchgear.
IEC 60422-2003 Toxicity evaluation of impregnating insulating oil for transformers and switchgear.
Chinese standards:
GB/T 7595-2008 Quality standard of transformer oil in operation.
GB/T 14541-2005 Reactor oil.
GB/T 7596-2008 Quality standard of turbine oil in power plant in operation.
GB/T 12692.3-2017 Petroleum products - Transformer oil - Part 3: Quality indicators of transformer oil in operation.
DL/T 1095-2008 Gas chromatographic determination method of component content of dissolved gases in transformer oil.
DL/T 423-2009 Guideline for on-site test of charged degree of transformer oil.
DL/T 722-2000 Guideline for analysis and judgment of dissolved gases in transformer oil.
DL/T 1469-2015 Test method for charged tendency of transformer oil.
Q/GDW 11733-2016 Technical requirements of on-line monitoring device for component content of dissolved gases in transformer oil.
Q/GDW 11734-2016 Test guideline of on-line monitoring device for component content of dissolved gases in transformer oil.

Testing items:

Vacuum degree detection: Check the ultimate vacuum degree and working vacuum degree of the system to ensure that the system meets the required vacuum degree indicators.
Oil detection: Detect the transformer oil before processing to understand the indicators such as the water content, gas content, and impurity particles in the oil.
Oil treatment effect detection: Detect the processed transformer oil to understand the indicators such as the withstanding voltage value and flash point of the oil, and evaluate the effect of oil treatment.
Temperature detection: Detect the working temperature of the system to ensure that the temperature during oil processing is controlled within the appropriate range.
Pressure detection: Detect the working pressure of the system to ensure that the pressure during oil processing is controlled within the appropriate range.
Safety protection function test: Test and verify the safety protection function of the system to ensure that the system can stop and alarm in a timely manner in case of abnormal situations.
Equipment operating status monitoring: Monitor the various operating parameters of the system, such as current, voltage, vibration, etc., to ensure the normal operation of the system.
Oil regeneration effect detection: Detect the transformer oil after oil regeneration treatment to understand whether the performance indicators of the oil have been improved.
Oil adsorption effect detection: Detect the transformer oil after oil adsorption treatment to understand whether the indicators such as the water content and gas content of the oil have been reduced.

Test objects:
Oil quality test: Test the physical and chemical properties of transformer oil, including density, viscosity, flash point, freezing point, acid value, water content, etc.
Gas test: Detect the gas content in the transformer oil, common gases include hydrogen, oxygen, nitrogen, carbon dioxide, etc. Common gas test methods include gas chromatography analysis and gas release analysis.
Humidity test: Measure the water content in the transformer oil, which is usually expressed in one thousandth (ppm). Common humidity test methods include coulometric titration, coulometric chromatography, and capillary method, etc.
Solid impurity test: Detect solid impurities in the transformer oil, such as particles, ash, sediments, etc. Common solid impurity test methods include membrane filtration, centrifugation, and infrared spectroscopy, etc.
Oxidation stability test: Evaluate the oxidation stability of the transformer oil to determine its antioxidant performance and service life. Common oxidation stability test methods include oxidation index determination and D877 oxidation stability test, etc.
PCB (polychlorinated biphenyl) test: Detect whether the transformer oil contains PCB, which is a toxic chemical substance that is harmful to the environment and human health. Common PCB test methods include gas chromatography and mass spectrometry, etc.
Through the testing and processing of transformer oil, the transformer oil vacuum degassing treatment system can remove gases, humidity, and solid impurities, improve the insulation performance and stability of the oil, thus ensuring the normal operation and reliability of the transformer.