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.
After audit carried out by DNV in June, Quality (EN ISO 9001) and Environment (EN ISO 14001) Certifications have been extended to the new production plant in Montecchio Maggiore. Certificates will be available in the download area within September 2011.
Succesfully tested this 13 Mvar 10,5 kV shunt reactor, realized by a three-phase air gapped core for German market. The technical features requested by client were particular strong, expecially the noise power level fixed in 75 dB(A).