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Main current carrying contact system

A contact system and current-carrying technology, used in transformers, electrical components, variable inductors, etc., can solve the problem that the tap changer cannot be applied, and achieve the effect of simple structure, reasonable spacing and reliable operation.

Active Publication Date: 2010-04-28
贵州长征电气有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] The existing technology with a rotation angle of less than 80 degrees is only suitable for on-load tap-changers for transformer oil arc extinguishing, but it cannot be applied to some tap-changers with larger rotation angles of 100-120 degrees.

Method used

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Examples

Experimental program
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Embodiment Construction

[0035] The invention utilizes a simple structure, which can match the program requirements of the on-load tap changer and operate in a relatively large range. During the operation, under the premise of satisfying the preset overtravel, the angle of disengagement and closing is relatively small. The opening distance in the middle process of disengaging and closing is reasonable, and at the same time, the locking circle structure effectively guarantees the reliable operation of the mechanism.

[0036] figure 1 and figure 2 It is a front view and a cross-sectional view of the main current-carrying contact system of the present invention. As shown in the figure, the main current-carrying contact system of the present invention includes: an upper mounting plate 12, a lower mounting plate 1, a first bearing bracket 4, and a second bearing bracket 20. The first bearing 6 , the second bearing 17 , the rotating shaft 18 and the first liner 21 .

[0037] The lower mounting plate 1 is...

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Abstract

The invention discloses a main current carrying contact system comprising an upper mounting plate, a lower mounting plate, a first bearing bracket, a second bearing bracket, a rotating shaft, a driver disk and a main contact, wherein the lower mounting plate is connected with the upper mounting plate via a first lining; the first bearing bracket is fixed on the lower mounting plate, and a first bearing is arranged in the first bearing bracket; the second bearing bracket is fixed on the upper mounting plate, and a second bearing is arranged in the second bearing bracket; the rotating shaft is connected with the first bearing and the second bearing; the driver disk is connected with the spindle by keys; and the main contact is connected with the driver disk. The main current carrying contact system of the invention has simple structure, can be matched with the program requirements of on-load tap-changers to operate in a larger range; in the process of operating, tripping-off and switching-on occupy smaller corner under the premise of satisfying preset over travel, and electrode separation in the middle process of tripping-off and switching-on is reasonable; and meanwhile, a lock circle structure is set to effectively guarantee the reliable operation of the mechanism.

Description

technical field [0001] The invention relates to a main current-carrying contact system, in particular to a main current-carrying contact system with a large rotation angle of a tap changer. Background technique [0002] The existing main current-carrying contact system with on-load tap changer is divided into a moving part and a current-carrying part. The rotation angle of the moving part depends on the rotation angle of the fast mechanism, usually within the range of 80 degrees; while the current-carrying part relies on the button contact The head and the static contact of the oil chamber are in contact with the current-carrying. There is a horn contact inside to connect the button contact with the neutral point. Single or even numbers of current-carrying contacts and neutral point contacts simultaneously contact the current-carrying structure. [0003] The structure of the rotation angle within 80 degrees in the prior art is only applicable to the on-load tap-changer for ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H01H1/56H01F29/04
Inventor 吴选霞陶波杨波宋涛谭永禄潘凯秀王述波
Owner 贵州长征电气有限公司
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