GAS INSULATED TRANSFORMER

PURPOSE: To provide a gas insulated transformer with a low noise by improving the bracing structure of a transformer itself in a tank. CONSTITUTION: A plate-shaped vibration-proof material 1, an interior side bracing 2 mounted to the clamping metal fitting of an iron core by welding or clamping a bolt, a plate-shaped vibration-proof material 3, an interior bracing 6 mounted to a side plate 5 of the tank 4, for example, by welding, and a plate- shaped vibration-proof material 7 are arranged in this order from an upper portion and a bolt 9 is inserted into a hole through the interior side bracing 2, the tank side bracing 6, and the plate-shaped vibration-proof materials 1, 3, and 7 via a cylindrical vibration-proof material 8, and a nut 10 is clamped for fixing. In this manner, by fixing the bracings 2 and 6 via the vibration-proof materials, the solid transfer of vibration generated in the interior itself to the side plate 5 of the tank 4 can be prevented, thus reducing noise. Also, the interior side bracing 2 is connected to the side plate 5 of the tank 4 by a connection lead wire 11 (twist wire) as a grounding potential.