Design method of remanent magnetism mechanism of recombiner and remanent magnetism mechanism

Abstract

The invention relates to a design method of a remanent magnetism mechanism of a recombiner and a remanent magnetism mechanism. The design method uses silicon iron as the material of the magnetic conduction loop of the remanent magnetism mechanism of the recombiner, and concretely comprises the following steps: (1) making the silicon iron material into a magnetic yoke; arranging a cavity in the magnetic yoke, and arranging a closing coil in the cavity; arranging a through hole in the middle of the bottom of the cavity; (2) arranging a movable iron core in the middle of the closing coil, and driving a pull rod by using the movable iron core; arranging an elastomer in the middle of the closing coil, wherein the elasticity of the elastomer onto the movable iron core is opposite to the direction of the magnetic force of the electrified closing coil onto the movable iron core, so the elastomer and the closing coil control the movement of the movable iron core in the axial direction of the closing coil together; the pull rod penetrating through the through hole from the bottom of the cavity; and (3) using the external wall of the magnetic yoke as the casing of the remanent magnetism mechanism of the recombiner. Compared with similar mechanisms, the technical scheme of the invention has the advantages of stable performance, low energy consumption and long service life of the electronic control device, and is especially suitable for 24kV recombiners.

Description

technical field [0001] The invention relates to an operating mechanism suitable for closing a vacuum circuit breaker, such as a frequently operated recloser with various protections, especially a design method and a residual magnetic mechanism suitable for a recloser of 24kV recloser. Background technique [0002] With the development of social economy, 10kV distribution network has been difficult to meet the power supply requirements, and the use of 20kV distribution network is an inevitable trend in the development of power systems. my country is currently investing heavily in the construction of 20kV distribution network, including some areas in Jiangsu Province as a pilot project. At present, there is a shortage of 20kV outdoor switchgear in my country, and foreign equipment has not fully adapted to the relevant standards of our country, and the price is relatively expensive, and most of them are replaced by high-voltage grades. Therefore, it is very necessary to develo...

AI Technical Summary

Problems solved by technology

As the application range and fields of permanent magnet mechanism become more and more extensive, its instantaneous power and mechanical characteristic control are difficult points, and the controller is more complicated. Reliability "bottleneck"

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