For the Polish Armament Group - PGZ Stocznia Wojenna Sp. z o.o., we are carrying out work related to the replacement of the existing MV 15kV and nn 0.4kV transformers in the SP 6 transformer station in hall A-210 with 2 new ones of 1000 kVA each. In the A-210 substation, the replacement of protections in the MV and nn fields for the new transformers was also carried out.