Full-sealed explosion-proof transformer bushing head structure

• Main Authors: YU YUHAO, FENG BIN, WANG XINQUAN
• Format: Patent
• Language: Chinese; English
• Published: 12.02.2014
• Subjects: BASIC ELECTRIC ELEMENTS; CABLES; CONDUCTORS; ELECTRICITY; INDUCTANCES; INSULATORS; MAGNETS; SELECTION OF MATERIALS FOR THEIR CONDUCTIVE, INSULATING ORDIELECTRIC PROPERTIES; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES; TRANSFORMERS

The utility model discloses a full-sealed explosion-proof transformer bushing head structure. The full-sealed explosion-proof transformer bushing head structure comprises a bottom plate, a strong spring, an expander, a pressure washer and a sealing gasket, wherein the strong spring is connected with the whole bushing in a sealing way through the sealing gasket and a conducting rod; the expander is arranged at the upper part of the conducting rod; the expander adopts a double-corrugated structure; the lower flange of the expander is connected with the bottom plate; the upper flange of the expander is installed on the conducting rod, and is fixed and sealed by the pressure washer; the expander is covered with a metal hood for protection. Through the adoption of the structure, a slight positive pressure is always maintained inside the product, so that water can be effectively prevented from entering the head of the bushing; when the pressure inside the bushing rises due to a fault, the metal expander on the head