Intelligent outdoor high voltage vacuum circuit breaker with bushing junction bar protection

Abstract

The invention discloses an intelligent outdoor high-voltage vacuum circuit breaker with a bushing connecting bar protection device, includes a connecting base and the main body, the upper end of the connecting base is provided with a main body, the connecting base and the main body are fixedly connected by bolts, a fixing nut is arranged inside the connecting base, A linkage shaft is arranged through the inside of the main body, the invention relates to an intelligent outdoor high-voltage vacuum circuit breaker with a bushing connection bar protection device, wherein the distance between the centerlines passing through two adjacent pole posts is reduced, The pole shell made of outdoor epoxy resin ensures the insulation performance and reduces the phase spacing, which reduces the overall volume and manufacturing cost of the circuit breaker. Good sealing performance, help to improve moisture-proof, anti-condensation performance, even in cold or humid areas can be used normally, with moderate phase spacing, low manufacturing cost, can be applied to cold or humid areas and high safety.

Description

technical field [0001] The invention belongs to the related technical field of circuit breakers, and in particular relates to an intelligent outdoor high-voltage vacuum circuit breaker with a protective device for bushing wiring bars. Background technique [0002] Outdoor high-voltage vacuum circuit breaker is a switchgear widely used in urban and rural distribution networks. Vacuum circuit breaker is a circuit breaker in which the arc extinguishing medium and the insulating medium of the contact gap after arc extinguishing are both high vacuum, and it is widely used in distribution network. In order to improve the insulation performance, reliability and safety of vacuum circuit breakers. [0003] The existing circuit breaker technology has the following problems: the existing circuit breakers usually increase the phase spacing, that is, the distance between the centerlines of any two adjacent phases in the three phases of the vacuum circuit breaker, but the phase spacing i...

AI Technical Summary

Problems solved by technology

[0004] The purpose of the present invention is to provide an intelligent outdoor high-voltage vacuum circuit breaker with a protective device for bushing terminal blocks, so as to solve the problem that the existing circuit breakers proposed in the background technology usually increase the phase spacing, that is, the three-phase vacuum circuit breaker. The distance between the centerlines of any two adjacent phases, but if the phase distance increases, the volume of the vacuum circuit breaker will increase, which will increase the manufacturing cost, and the internal structure is too messy, and the external The shell is exposed to the sun and rain, which reduces the service life

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