Abstract: A static electrical converter, preferably for high voltage, has at least one valve assembly each having a single valve or a plurality of electrically series-connected valves. The valve assembly is provided with suspension members at its upper end, so that the valve assembly can be suspended from a supporting structure.

Abstract: A high-voltage installation comprises a support structure including a supporting member from which at least one electrical high-voltage apparatus, for example a transformer or inductor, is suspended. The apparatus is suspended from the supporting member by at least one electrically-insulating suspension member, for example an insulator chain, which includes resilient means allowing relative movement between the apparatus and the supporting member.

Abstract: A fluid-cooled thyristor valve including a plurality of series-connected thyristors that are cooled by non-conducting fluid flowing through electrically conducting cooling bodies positioned at the anode and cathode sides of the thyristors. The cooling bodies at opposite sides of adjacent thyristors are connected by fluid pipes that pass the cooling fluid. A plurality of electrically conducting sections of pipe connect the cooling body on the anode side and the cooling body on the cathode side of adjacent thyristors to pass the cooling fluid in one direction and to electrically connect the thyristors in series through the electrically conducting cooling bodies. A plurality of electrically insulated sections of pipe connects the cooling body on the cathode side and the cooling body on the anode side of adjacent thyristors to pass the cooling fluid in the opposite direction.