On-site repairs of transformers include:
- tightening the tank
- cleaning and anticorrosion maintenance
- replacement of radiators
- mounting of valves and shutters
- replacement of accessories (thermometers, Buholtz relays etc.)
- modernization of cooling systems
- replacement of on-load tap changers
- internal inspections of transformer's active part
- oil treating and degassing with vacuum aggregate
- on-site transformer mounting and dismounting
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