Why does transformer oil need to be filtered regularly?

The main reasons for filtering transformer oil regularly are as follows:

1. Maintain the insulation and cooling properties of the oil

Transformer oil is the main insulation and cooling medium for oil-immersed transformers. The quality of its electrical strength and chemical composition directly affects the performance of the transformer. Over time, transformer oil absorbs moisture, oxidation products and other impurities, the presence of which reduces the insulation strength and cooling efficiency of the oil. Regular filtering can remove these impurities and moisture, thereby maintaining the good condition of the oil and ensuring the normal operation of the transformer.

2. Extend the service life of the equipment

The quality of the transformer oil directly affects the service life of the transformer. If there are too many impurities in the oil, it will accelerate the aging and wear of the equipment. By filtering regularly, the damage to the equipment by impurities can be reduced and the service life of the equipment can be extended.

3. Prevent safety accidents

Quality problems of transformer oil may lead to equipment failure or even safety accidents. For example, too much moisture in the oil may cause an internal short circuit or breakdown of the equipment, causing serious consequences such as fire or explosion. Regular filtering can effectively prevent the occurrence of such safety accidents and ensure the safety of personnel and equipment.

4. Comply with operating specifications and maintenance requirements

Regular filtering of transformer oil is part of the operating specifications and maintenance requirements of the transformer. Through regular testing and filtering, oil quality problems can be discovered and dealt with promptly to ensure that the transformer is always in good operating condition. This also helps to improve the reliability and stability of the equipment and reduce power outages and losses caused by equipment failure.

5. Improve economic benefits

Although regular filtering of transformer oil requires a certain amount of cost investment, in the long run, this can effectively reduce the cost of repairs and replacements caused by equipment failure. At the same time, maintaining good oil quality can also improve the operating efficiency of the equipment, thereby reducing energy consumption and operating costs.

In summary, regular filtering of transformer oil is of great significance to ensure the normal operation of the equipment, extend its service life, prevent safety accidents, and improve economic benefits. Therefore, during the operation and maintenance of the transformer, the regular filtering of transformer oil should be highly valued.