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

A design method and technology of recloser, applied in the field of recloser and operating mechanism, can solve the problems of large instantaneous power mechanical characteristic control, complicated controller, etc., and achieve the effect of fast response speed, small closing current and long service life

Inactive Publication Date: 2010-05-05
NANJING INTELLIGENT DISTRIBUTION AUTOMATION EQUIP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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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"

Method used

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

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Embodiment Construction

[0038] The present invention will be further described below in conjunction with the accompanying drawings and specific embodiments.

[0039] A method for designing a residual magnetic mechanism of a recloser is characterized in that silicon steel materials are used as the material of the magnetic circuit of the residual magnetic mechanism of the recloser, and the specific steps include:

[0040] 1) The yoke is made of silicon steel; a cavity is set in the yoke, and a closing coil is set in the cavity; a through hole is set in the middle of the bottom of the cavity;

[0041] 2) A moving iron core is set in the middle of the closing coil, and the moving iron core is used to drive the pull rod; an elastic body is set in the middle of the closing coil, and the elastic force of the elastic body on the moving iron core is opposite to the magnetic force of the moving iron core after the closing coil is energized. Control the movement of the moving iron core in the axial direction of...

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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...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H01H3/28H01H33/666H01F3/02
Inventor 田阳徐陆飞孙浩李家珏
Owner NANJING INTELLIGENT DISTRIBUTION AUTOMATION EQUIP
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