Abstract: A water turbine arrangement employs a generator enclosed in a cylindrical casing. A turbine is arranged directly on the generator shaft outside the casing. The casing is arranged to a flow conduit by a support structure which has a tubular support shaft arranged to carry the cylindrical casing in the flow conduit. The cylindrical casing and the tubular support shaft and the turbine are removable from the flow conduit as a single structure through an installation hole.

Abstract: An arrangement for the transfer of electric current, a liquid medium and a gaseous medium between fixed and rotatable sections. A protective casing surrounds sliding brushes pressing against sliding surfaces. A passage for each medium is parallel with rotation and arranged at a boundary surface between the fixed and rotating sections. Passage transfer pipes in both sections communicate with the passages. A collector chamber arranged in the fixed section and an outlet pipe lead the gaseous medium out of the tubular rotating section. The arrangement for the transfer of a liquid medium is coaxially arranged inside the arrangement for the transfer of electric current. The protective casing provides a collector chamber for the gaseous medium.