What is the maximum temperature of transformer oil filtration?

The maximum temperature of transformer oil during filtration is usually controlled according to the characteristics of the oil and the requirements of the equipment, and generally follows the following standards:

1. General Limits:

- It is generally recommended that the filtration temperature should not exceed 60°C~65°C. This range can maintain the fluidity of the oil and avoid oil oxidation or additive decomposition caused by high temperature.

2. Special Conditions:

- If a vacuum oil filter is used, the temperature may be allowed to rise to 70°C~80°C for a short time (strictly monitored) to improve the dehydration efficiency, but it is necessary to ensure that the equipment is resistant to high temperatures and the time is short.

- Some synthetic oils or specially formulated oils may allow higher temperatures, but the manufacturer's instructions must prevail.

3. Precautions:

- Oxidation Risk: Long-term high temperature will accelerate the aging of the oil and generate acidic substances or sludge.

- Safety Specifications: It must comply with standards such as IEC 60422 or GB/T 14542 to ensure that the insulation performance is not damaged.

Recommendation: Before operation, please consult the equipment manual and oil technical parameters, monitor the temperature in real time, and give priority to the filtering conditions recommended by the manufacturer.