5 tips for online transformer oil filtering

Sometimes, online transformer oil filtering needs to be performed when no power outage is required, but online oil filtering is a dangerous job which requires professional and experienced personnels. Here we share 5 tips of online transformer oil filtering for your review.

1. Comply with on-site safety requirements to ensure safety when filtering oil;

2. The equipment shell used should be well grounded;

3. The gas relay of the transformer should be withdrawn from the trip circuit and connected to the signal circuit;

4. Pay attention to choosing the position of the oil inlet and outlet of the oil-filled equipment to prevent the dead angle of oil flow and washing up the sediment;

5. Control the oil pumping speed to prevent the oil flow from being electrified.