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Polar column

A pole and conductive rod technology, applied in high-voltage air circuit breakers, electrical components, electrical switches, etc., can solve the problem that poles are difficult to meet fault line isolation and overlap, avoid serious melting, ensure normal work, and reduce melting. spot effect

Pending Publication Date: 2018-07-24
BEIJING BOE VACUUM ELECTRONICS CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0007] The purpose of the present invention is to provide a pole to solve the problem that existing poles containing single-acting structure vacuum switch tubes are difficult to meet the requirements of breaking the fault current within a few milliseconds and realizing the isolation and reclosing of the fault line quickly and reliably The problem

Method used

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Embodiment Construction

[0061] In order to make the technical problems solved by the present invention, the technical solutions adopted and the technical effects achieved clearer, the technical solutions of the present invention will be further described below in conjunction with the accompanying drawings and through specific implementation methods. It should be understood that the specific embodiments described here are only used to explain the present invention, but not to limit the present invention. In addition, it should be noted that, for the convenience of description, only the parts related to the present invention are shown in the drawings but not all of them.

[0062] This embodiment discloses a pole, such as figure 1 As shown, it includes an insulating cylinder 1 and a vacuum switch tube 6. The vacuum switch tube 6 includes an extended end of a passive conductive rod 65 and an extended end of an active conductive rod 66, and the vacuum switch tube 6 is located in the insulating cylinder 1,...

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Abstract

The invention discloses a polar column, and belongs to the technical field of electrical appliances. The polar column includes an insulation barrel and a vacuum switch tube disposed in the insulationbarrel, and a first end cover and a second end cover which are disposed at two ends of the insulation barrel; the first end cover and the second end cover axially fix the vacuum switch tube; the vacuum switch tube includes a slidable passive conductive rod and a slidable active conductive rod; a first axial through hole is formed in the first end cover; an elastic assembly and a first conductive assembly are successively arranged in the first axial through hole toward the second end cover; the elastic assembly can push the passive conductive rod and the active conductive rod, and stop continuous motion of the passive conductive rod after the passive conductive rod moves a certain distance. The invention solves the problem that the conventional poles is difficult to complete cut-off of fault current within few milliseconds, and when the polar column rapidly achieve on-off of the circuit current, a hump arranged on the passive conductive rod will be broken, and the service life of the polar column will be affected.

Description

technical field [0001] The invention relates to the technical field of electric appliances, in particular to a pole. Background technique [0002] In the field of power distribution, driven by modern power electronics technology and distributed power supply, DC distribution network has great development prospects. On the one hand, common distributed power sources can generate DC power or convert it into DC power after rectification. If these power sources are connected to the DC distribution network, the commutation link will be greatly saved; on the other hand, many loads themselves currently use DC power supply. The distribution network can directly supply power to these loads without going through the rectification link, thereby reducing costs and reducing losses. Compared with AC distribution network, DC distribution network has many technical and economic advantages due to its low line cost, small transmission loss and high power supply reliability. As a DC protection...

Claims

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Application Information

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IPC IPC(8): H01H33/666H01H33/664
CPCH01H33/664H01H33/666
Inventor 王曼莉刘卫荣孟佳
Owner BEIJING BOE VACUUM ELECTRONICS CO LTD