Submerged arc furnace capacitor and processing process thereof

Abstract

Disclosed is a submerged arc furnace capacitor. A capacitor is mounted in a shell; the space between the shell and the capacitor is filled with resin; the capacitor consists of a substrate, a film-coated electrode plate and a gold-sprayed electrode plate; the film-coated electrode plate is arranged on the upper surface of the substrate; the gradually-changed sheet resistance metalized film gold-sprayed electrode plate is arranged on the lower surface of the substrate; and the two ends of the gold-sprayed electrode plate are connected with wires. The processing process of the submerged arc furnace capacitor comprises the steps of a, performing film coating on the upper surface of the substrate to form the film-coated electrode plate, and adopting a gradually-changed sheet resistance metalized film on the lower surface of the substrate to form the gold-sprayed electrode plate; b, leading a gummed wire lead from the surface of the gold-sprayed electrode plate; and c, putting the capacitorinto the shell, and filling the space between the capacitor and the shell with resin. The 120uf-400V submerged arc furnace capacitor disclosed in the invention has high dielectric insulating intensity, high dielectric constant, and high inrush current and overvoltage resistance, so that relatively high capacitance value and voltage resistance value within the same volume of the capacitor are ensured; and by virtue of the unique gold spraying process, a larger contact area is realized between the film-coated electrode plate and the gold-sprayed electrode plate of the capacitor, so that higherinrush current can be withstand, and low heating amount and high self-healing property and capacitance value stability are achieved.

Description

technical field [0001] The invention relates to the technical field of capacitors, in particular to 120uf-400V submerged arc furnace capacitors. Background technique [0002] 95uf-400V submerged arc furnace capacitors generally have shortcomings such as short service life of the container, large error in capacity loss during work, low capacitance and withstand voltage, poor self-healing and capacitance stability, etc., resulting in high cost. Contents of the invention [0003] In order to solve the above-mentioned problems existing in the existing 120uf-400V submerged arc furnace capacitor, the present invention provides a 120uf-400V submerged arc furnace capacitor. [0004] The technical solution adopted by the present invention to achieve the above object is: the submerged arc furnace capacitor, the capacitor 1 is installed in the housing 3, the resin 2 is filled between the housing 3 and the capacitor 1, and the capacitor 1 is composed of a substrate, a coating plate an...

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Problems solved by technology

[0002] 95uf-400V submerged arc furnace capacitors generally have shortcomings such as short service life of the container, large capacity loss error during work, low capacitance and withstand voltage values, poor self-healing and capacitance stability, etc., resulting in high cost

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