Technical Article
Transformer Oil Vacuum Purification Process
A practical overview of transformer oil vacuum dehydration, degassing, filtration, circulation, and on-site acceptance.
Key Points
- Transformer oil purification typically focuses on dehydration, degassing, fine filtration, and breakdown voltage recovery.
- On-site treatment should track oil temperature, vacuum stability, circulation cycles, and sampling tests.
Practical Review
Before transformer oil treatment, confirm equipment capacity, oil volume, current oil quality, and maintenance window. Heating, vacuum separation, and fine filtration reduce water, gas, and particle contamination. For large transformers or critical power equipment, keep before-and-after oil reports, sampling points, circulation time, operation records, and acceptance criteria in the handover dossier.
Purchasing Checklist
- Oil type and oil volume
- Initial oil test report and target value
- Required flow rate and maintenance window
- Power supply, installation space, and drainage
- Sampling method, acceptance report, and spare parts
FAQ
What information should be prepared before inquiry?
Oil type, oil volume, oil test report, target indicators, site utilities, and maintenance window.
Can this article replace technical selection?
No. It is a reference. Final selection should be confirmed with oil condition, site conditions, and acceptance requirements.
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