What is the method of transformer oil purification?

The aging degree of transformer oil is sometimes used as a basis for judging internal faults of transformers. Good quality transformer oil has good insulating properties, anti-oxidative stability and cooling properties. Low freezing point, high flash point and low evaporation to ensure safe work at operating temperature. Transformer oil purification is essential in the workflow of transformer oil.

• What is the method of transformer oil purification?

• What should I pay attention to when transformer oil purification is carried out?

• What are the advantages of transformer oil purification?

What is the method of transformer oil purification?

1. The direct circulation transformer oil purification is to connect the oil purifier and the transformer equipment into a circulation loop. Through the oil purifier, the transformer oil is extracted from the bottom of the electrical equipment and returned from the top of the electrical equipment. The returned transformer oil should be returned smoothly and at a horizontal position close to the top oil level, and try to avoid mixing the treated transformer oil with the transformer oil that has not been treated by the oil purifier.

2. Indirect circulation transformer oil purification is to connect the oil filter in series between the equipment and the transformer oil treatment tank, first filter the transformer oil in the equipment and then send it to the oil tank, and then remove the moisture and gas from the workpiece inside the equipment. , and then use the oil filter to pump the processed transformer oil back to the equipment. When the indirect circulation method cannot be implemented (such as when the transformer casing cannot withstand vacuum), the direct circulation method should be used.

What should I pay attention to when transformer oil purification is carried out?

In the special case of transformer oil purification, when the electrical equipment cannot arrange a power outage but must carry out live oil filtration, safety measures should be taken in all aspects, and special attention should be paid to:

- The inlet and outlet pipelines of the oil filter must be tight to avoid the intake and oil leakage of the pipeline system, so as to avoid failure;

- Control the oil flow speed not to be too large, so as not to cause danger due to flow electrification.

What are the advantages of transformer oil purification?

1) The cost of transformer oil purification is low. The required cost is 90% less than the traditional oil change method (it is recommended that the user first use the oil filter to pass the oil pressure resistance, and then use the regeneration device, the cost will be lower, and the effect will be more obvious);

2) Can make dark oil No. 6-10 into No. 2-4 color;

3) Reduce the dielectric loss factor to make it meet the new oil index;

4) transformer oil purification is the process of using physical and chemical means to purify and restore transformer oil.

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