Transformer repair at the installation site, in the repair shop

Internal inspections of transformers on site.

• Inspection of windings and connections,
• Inspection of the core,
• Inspection of the tap changer and selector,
• Checking bolted connections,
• Checking winding leads,
• Checking bushings, insulating spacers,
• Checking the condition of the screens.

Installation of new transformers and installation and dismantling of repaired transformers up to 500 MVA.
Dismantling and installation of high-voltage bushing insulators of power transformers.
Treatment and replacement of oil on site.
-treatment and degassing of oil with specialized vacuum units

Replacement of seals:

• bushings,
• inspection hatches,
• main gasket,
• and others.

Inspection, replacement of transformer equipment: oil pumps, fans, galvanized radiators, safety valves, thermometers, flow meters.
Conservator repairs.
Drying of oil-paper insulation of the transformer,
-vacuum drying of paper-oil insulation leading to an increase in instantaneous
and long-term reliability of the device's operation
Replacement of dehumidifiers and absorbent with new ones.
Cleaning and painting of transformers.