International competitive bids are invited to enter into a three-year framework agreement (from February 8, 2018 to December 30, 2021) for the construction of hybrid extinguishing system for the protection of the three oil-filled 380/110 kV transformers and two oil-filled transformer banks (each consisting of three units of single-phase 380/220 kV transformers) at the Pongau substation.

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