| 摘要 |
PURPOSE:To make connections of high voltage leads of two unit transformers and improve insulation properties of them by a method wherein a connecting duct which connects those two unit transformers and makes them connected to a gas-filled bus-bar is provided at the top covers of their tanks and another connecting duct is provided at the sides of them. CONSTITUTION:A connecting duct 2BC are provided at the top covers 8B, 8C of two unit transformers 1B, 1C and it includes a lead bushing 6 by which those transformers are connected to a gas-filled bus-bar 7 which is provided between the unit transformers 1B and 1C. A connecting duct 2AB are provied near the center of the sides 9A, 9B and connects high voltage lead wires of the unit transformers 1A, 1B without attaching the bushing. As that connecting duct 2AB is provided near the center of the sides of the tanks, connection of the high voltage lead wires from the windings to the connecting duct 2AB is much easier than conventional way. And the duct 2AB can be designed only in relation to the unit transformers 1A, 1B and the relation to the gas-filled bus-bar 7 is not to be considered and the vibration resistance of the whole transformer group can be improved by making connection at the side of the tanks. |
