Supply of 110-750 kV transformers October 13, 2017 | Europe Tenders Competitive bids are invited for the supply of 110-750 kV transformers required for implementing the repair programs for the needs of Chelyabenergo, a branch of OAO IDGC of the Urals, in 2017. This content is available to only paying subscribers. Username or E-mail Password Remember Me Forgot Password