It is used for the protection of cooling and insulation material in oil type transformers. Depending on the cooling surfaces, transformers up to 3150 KVA are manufactured with corrugated walls, and transformers with larger powers are manufactured with radiator tanks.
A CNC controlled plasma machine is used in boiler manufacturing. Boilers that have completed assembly and welding are subjected to a leakage test under pressure according to IEC standards. The vacuum resistance of corrugated wall boilers is designed to be 0.65 bar, and radiator boilers to be 1 bar. Boilers that have completed their manufacturing are subjected to sandblasting according to customer demand. The boiler cover is designed to remove the winding ends.
There are insulators, phase marking, lifting lugs for lifting the active part, thermometer pocket, grounding bush and additional equipment on the cover.
