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Composite vacuum on-load tap-changer with external selector

A technology of on-load tap changer and selector, which is applied in the directions of transformers, inductors, variable inductors, etc., and can solve the problem that the selector cannot adapt to the design requirements of the plug-in compound on-load tap-changer

Active Publication Date: 2012-08-01
SHANGHAI HUAMING POWER EQUIP CO LTD +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The technical problem to be solved by the present invention is to provide a composite vacuum on-load tap changer

Method used

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  • Composite vacuum on-load tap-changer with external selector
  • Composite vacuum on-load tap-changer with external selector
  • Composite vacuum on-load tap-changer with external selector

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Embodiment Construction

[0015] In order to make the technical means, creative features, goals and effects achieved by the present invention easy to understand, the implementation of the present invention will be further described below in conjunction with specific illustrations.

[0016] see image 3 , the composite vacuum on-load tap-changer with an external selector shown in the figure includes a switch oil chamber 100 and a switch body inserted into the switch oil chamber 100 (not shown in the figure). The switch oil chamber 100 includes an insulating cylinder 110, a tap changer mounting flange 120 fixed on the head of the insulating cylinder 110, a supporting flange 130, and a cylinder bottom 140 installed at the bottom of the insulating cylinder 100. The switch oil chamber 100 is installed through the tap changer. The flange 120 and the supporting flange 130 are installed in the transformer. An upper support arm 131 integrally connected with the support flange 130 is provided, and a lower suppo...

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PUM

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Abstract

The invention discloses a composite vacuum on-load tap-changer with an external selector. The composite vacuum on-load tap-changer comprises a switch oil chamber and a switch body which inserts into the switch oil chamber. The switch oil chamber comprises an insulation tube, a tap-changer installation flange fixed on a head of the insulation tube, a supporting flange and a tube bottom installed on the bottom of the insulation tube. The composite vacuum on-load tap-changer is characterized in that: the selector is installed on an outer side of the switch oil chamber insulation tube through an upper supporting arm which is connected into one body with the supporting flange and a lower supporting arm which is connected into one body with the tube bottom; the selector is driven to work through a selector driving mechanism installed on the supporting flange. According to the invention, because of the external selector, it is possible to design the switch body and the switch oil chamber into a plug-in type.

Description

technical field [0001] The invention relates to a compound on-load tap changer, in particular to a compound type vacuum on-load tap changer with an external selector. Background technique [0002] The existing compound on-load tap-changer is an on-load tap-changer that combines the functions of switching and selection into one. The on-load tap-changer is mounted on the transformer cover by means of the switch head flange. The existing compound on-load tap-changer can be equipped with or without a change-over selector. When the tap-changer does not have a change-over selector, the tap-changer has a maximum of 14 working positions; Up to 27. [0003] see figure 1 , the existing composite on-load tap-changer usually includes a switch oil chamber 1, and the static contact 2 is installed on the wall of the insulating cylinder 3 of the switch oil chamber; the transition contact for switching, the main on-off contact and the moving contact The components such as head and transi...

Claims

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Application Information

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IPC IPC(8): H01H1/56H01F29/06
Inventor 肖日明
Owner SHANGHAI HUAMING POWER EQUIP CO LTD
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