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Insulation System

Insulation system

 

 

 

 

 

 

 

 

 

 

The insulation system in oil-immersed transformers is made of hard insulation and dielectric liquid. Hard insulation is made of concentric cylinders or barriers from special high-pressure cardboard. The dielectric liquid is usually mineral or synthetic oil. We use only high-quality, stabilized insulation produced by renown manufacturers.

Adequate drying of insulation according to vapor phase system and filling the active part with oil under vacuum are the final phases determining the high dielectric, thermal and dynamic strength of the transformer.