Industrial Painting of Metal Frame and Electrical Current Transformers for HV/MV Substations – STEG

The intervention of T.H.I REVETEMENT consists in renewing the anti-corrosion painting system for the protection of the metal frame and the HV/MV transformers by sandblasting; brushing and painting according to a power outage schedule for risk-free access to the transformers and the disconnector support frame 

The system consists of preparing the surface by sandblasting for the frame and by ST3 brushing for the transformers.

 For the frame, as soon as the sandblasting is finished, the first coat of anti-corrosion painting is applied, the primary coat of anti-corrosion paint is used to protect the bare surface after the sandblasting. 

The painting system is further reinforced with an intermediate layer of anti-corrosion paint. 

The anti-corrosion painting system is finally closed with a coat of waterproof finishing paint. 

For the transformer, after brushing, the first coat of anti-corrosion paint is manually applied only to the corroded surfaces cleaned by brushing. 

After the touch-ups, two finishing coats of anti-corrosion painting are sprayed onto the transformer.