Two common ways to filter transformer oil

Regularly filtering transformer oil can restore its performance and protect the stable operation of the transformer.

Two common methods of filtering transformer oil

1. Portable filter (suitable for small maintenance)

- Features: small size, easy to move, can be brought to the site for use.

- Problems that can be solved:

- Remove moisture (make the oil dry)

- Filter impurities (such as metal debris, dust)

- Applicable scenarios:

- Regular maintenance of substations

- Emergency repairs (such as rapid treatment of oil after moisture)

2. Online filtration system (suitable for long-term protection)

- Features: installed on the transformer, automatic filtering 24 hours a day.

- Problems that can be solved:

- Keep the oil clean

- Avoid sudden failures

- Applicable scenarios:

- Important transformers (such as core power supply equipment in hospitals and factories)

- High humidity areas (prevent oil from getting wet)

How to determine whether transformer oil needs to be filtered?

If the following situations occur, it may be time to filter:

1. The color of the oil becomes darker (normally it is light yellow, black, or turbid indicates contamination)

2. The operating temperature of the transformer increases (dirty oil will affect heat dissipation)

3. The test report is abnormal (water or impurities exceed the standard)

Effect after filtration

- Insulation performance is restored → Reduce the risk of power outages

- Transformer operation is more stable → Extend service life

- Save costs → More economical than a direct oil change

Our services

We provide:

✅ Professional oil quality testing (free oil sample analysis)

✅ Customized filtration solutions (recommended equipment according to transformer type)

✅ On-site technical support (quickly solves oil quality problems)

If you are not sure whether filtering is needed, please contact us for a free evaluation!

Summary

Transformer oil filtration is like "oil change maintenance", regular maintenance can avoid major repairs. ｓｅｌｅｃｔ between portable and online filtration, depending on your specific needs. The key is - don't wait until the failure to act!