Supply and installation of 110/21/36.75 kV transformer July 7, 2017 | Europe Tenders International competitive bids are invited for the supply and installation 40/20/20 MVA, 110/21/36.75 kV transformer for the 110/ 20/35 kV Krk substation. This content is available to only paying subscribers. Username or E-mail Password Remember Me Forgot Password