Box body structure of capacitor, capacitor and power transmission system

Abstract

The invention provides a box body structure of a capacitor, the capacitor and a power transmission system. The box body structure of the capacitor comprises a box body and a reinforcement rib structure, wherein the box body is suitably used for accommodating a capacitance component, and the reinforcement rib structure is arranged on an inner surface of the box body. By arranging the reinforcementrib structure, on one hand, reinforcement ribs protrudes towards the interior of the box body, so that the inner surface of the box body becomes uneven, diffusion reflection is formed on a sound waveby the uneven surface when noise is transferred to the box body, the noise energy is reduced, and the noise propagated to the outside is reduced; and on the other hand, the strength of the inner surface of the box body is improved by the reinforcement rib structure, the vibration amplitude of the box body can be reduced due to the strength improvement when the noise is transferred to the box body,so that the noise give out from the box body is reduced, and the integral noise of the capacitor is further reduced.

Description

technical field [0001] The invention relates to the technical field of power transmission, in particular to a capacitor box structure, a capacitor and a power transmission system. Background technique [0002] Capacitors are a common device in substations and converter stations. A capacitor usually includes a box, a capacitor core inside the box, and an outlet bushing on the top of the box. The wires connected to the external circuit enter the box through the outlet bushing and are electrically connected to the capacitor core. [0003] The box is generally filled with an impregnating agent for impregnating the capacitor element, and the impregnating agent is used to improve partial discharge characteristics and heat dissipation conditions. [0004] The impregnating agent is generally mineral oil or chlorinated biphenyl. [0005] The box body is usually a rectangular box body welded by thin steel plates, and the surface of the box body is coated with flame retardant. [00...

AI Technical Summary

Problems solved by technology

[0008] Therefore, the technical problem to be solved by the present invention is to overcome the defect that the capacitor in the prior art is noisy during operation, thereby providing a capacitor box, power capacitor and power transmission system that can reduce the noise emitted during operation.

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