How does transformer oil purification work?

During the operation of transformer oil purification, there is a temperature difference between the oil temperature of the upper layer of the transformer and the oil temperature of the lower layer, so that the oil circulates in the regenerator. The harmful substances in the oil, such as moisture, free carbon and oxides, are absorbed into the silica gel with the circulation of the oil, so that the oil can be purified and maintain the good electrical and chemical properties of the oil, so it is named the regenerator.

• How does transformer oil purification work?

• What is the role of transformer oil purification?

• What is the importance of transformer oil purification?

How does transformer oil purification work?

Since the temperature of the transformer will change at any time during operation, the oil level inside the transformer will increase or decrease. The oil conservator is a semi-enclosed oil conservator (most of the transformers now use a fully enclosed oil conservator), so that the internal pressure of the transformer can be maintained at normal pressure due to the rise or fall of the oil level (which can be understood as breathing). Therefore, transformer oil purification is to slow down the deterioration speed of transformer oil (ie insulating oil) and prevent air contamination of insulating oil. A respirator is installed on the oil exhalation channel. The respirator is also called a silica gel tank. The transformer breathes through the silica gel, and then filters through the oil in the oil cup at the bottom of the respirator, which can basically ensure the clean and dry air.

What is the role of transformer oil purification?

1) transformer oil purification can not only remove low-quality transformer oil, acidic components, suspended substances, and precipitated substances in switch oil, but also regenerate low-quality transformer oil and switch oil;

2) transformer oil purification uses a special purifying agent, which can operate without power failure, oil change, and normal operation of the transformer;

3) The oil treated by transformer oil purification does not damage the basic components and antioxidant properties of the oil, meets the new oil standard, and improves the insulation and safety performance of the equipment.

What is the importance of transformer oil purification?

Water is a strong polar substance (the relative permittivity of water is 80, and the transformer oil is only 2.2), which is easy to ionize and decompose under the action of an electric field, thereby increasing the conductivity of the oil. Trace moisture can significantly increase the dielectric loss of insulating oil. In addition, moisture can also promote the corrosive effect of organic acids on metals such as copper and iron, and the resulting saponification will deteriorate the dielectric loss factor of the oil, increase the moisture absorption of the oil, and catalyze the oxidation of the oil, causing the oil to generate impurities. This results in a reduction in insulation resistance and a further reduction in dielectric strength, as well as a reduction in oil breakdown voltage. Therefore, transformer oil purification is essential in the workflow of transformer oil.

Chongqing Technology and Business University S&T Developing Ltd. has focused on the development and production of transformer oil purification for several years. And it commits to provide perfect service for every customer from all over the world.