Vacuum glue-impregnated fiber explosion-proof oil-paper capacitive bushing

Abstract

The present invention discloses a vacuum resin impregnated fiber explosion-proof oil paper condenser-type bushing. The vacuum resin impregnated fiber explosion-proof oil paper condenser-type bushing comprises a pressure equalizing ball, a capacitor core, an umbrella skirt, a flange, a conservator, and a wiring board, wherein the capacitor core is of a cylindrical shape; a central conductive bar is arranged inside the capacitor core; the outside of the central conductive bar is wrapped with an insulating layer and an aluminum foil alternately; an upper insulating layer and an lower insulating layer are arranged outside the capacitor core; the upper insulating layer is connected to the umbrella skirt by epoxy resin; the flange is arranged at the middle part of the capacitor core; a relief plug is arranged on the lateral surface of the flange; the conservator is arranged above the umbrella skirt; the wiring board is arranged above the conservator; and the pressure equalizing ball is arranged at the lower half part of the capacitor core. The vacuum resin impregnated fiber explosion-proof oil paper condenser-type bushing is prepared scientifically, and the insulation performance of the capacitor core is high; and the insulating layer replaces an original fragile porcelain bushing, and has good shock resistance and explosion proof functions, the bushing uses a full-sealed structure and is filled with transformer oil, insulation aging is prevented, and the bushing has the advantages of light weight, easiness for transportation and installation, high mechanical strength, difficulty in breakage, strong surface hydrophobicity, strong pollution flashover resistance, and long service life.

Description

technical field [0001] The invention belongs to the technical field of electrical equipment, and in particular relates to an explosion-proof oil-paper capacitive bushing of vacuum glue-impregnated fiber. Background technique [0002] With the rapid development of my country's economy, the scale of the power grid continues to expand, and the uncertain factors and potential risks affecting the safe operation of the power system increase accordingly. Therefore, users have higher and higher requirements for the safety, reliability and quality of power supply. High-voltage bushings It is mainly used in the connecting link of high-voltage electrical equipment and restricts the reliability of equipment operation. The existing domestic high-voltage bushings have poor anti-seismic and explosion-proof performance. Explosion accidents, short service life, and short replacement and maintenance cycles. Contents of the invention [0003] In order to solve the above problems, the present ...

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Problems solved by technology

[0002] With the rapid development of my country's economy, the scale of the power grid continues to expand, and the uncertain factors and potential risks affecting the safe operation of the power system increase accordingly. Therefore, users have higher and higher requirements for the safety, reliability and quality of power supply. High-voltage bushings It is mainly used in the connecting link of high-voltage electrical equipment and restricts the reliability of equipment operation. The existing domestic high-voltage bushings have poor shock and explosion-proof performance. Explosion accidents, short service life, short replacement and maintenance cycle

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