SEA supplied 2 power transformers for the "Kollontai" substation in St. Petersburg. They are two-tier transformers, 63/2x31.5 MVA and 110/2x10 kV; HV connections are made by SF6 gas-insulated busbar ducts.
63 MVA power transformers for "Kollontai" substation in St. Petersburg
13 October 2011
