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High-low shifting column change-over switch

A transfer switch and column conversion technology, which is applied in the direction of transformers, electrical components, variable inductors, etc., can solve the problems of increasing the use cost and dealing with the environmental pollution of transformer insulating oil, and achieves good standardization, is conducive to mass production, and is easy to use. The effect of processing

Active Publication Date: 2011-05-11
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] Therefore, the carbonization and decomposition of transformer oil and frequent maintenance and repair work caused by the arc extinguishing method of the prior art will increase the cost of use, and cause the treatment of transformer insulating oil to pollute the environment

Method used

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  • High-low shifting column change-over switch
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  • High-low shifting column change-over switch

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0027] The on-load tap-changer can realize the on-load transition switching of the on-load tap-changer by adopting vacuum arc extinguishing technology, so as to avoid carbonization and decomposition of transformer oil caused by traditional arc extinguishing methods, frequent maintenance and repair work, etc., which will effectively reduce Daily inspection and maintenance of equipment is used to reduce environmental pollution caused by the treatment of transformer insulating oil.

[0028] figure 1 and figure 2 They are respectively the top view and the side view of the high-low column changeover switch of the present invention. As shown in the figure, the high-low column changeover switch includes a mounting plate 9, changeover switches 1, 6, a guide rod 5 and a high-low column plate 8.

[0029] The transfer switches 1 and 6 are fixed on the mounting plate 9, the guide rod 5 is connected with the mounting plate 9, the high and low dial 8 is slid with the guide rod 5, and the ...

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PUM

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Abstract

The invention discloses a high-low shifting column change-over switch which comprises an installation board, a change-over switch, a guide rod, and a high-low shifting column disc. The change-over switch is fixed on the installation board, the guide rod is connected with the installation board, the high-low shifting column disc can slide relative to the guide rod, the guide rod transmits required rotation relation to the high-low shifting column disc and is in contact with the change-over switch, and the change-over switch comprises a shell, two contact bridges, a shifting fork, a first contact and a second contact. The high-low shifting column change-over switch has the advantages of simple and small structure, practical function, accurate in-place action and higher-capacity contacts, and powerfully ensures the working reliability of an immersed vacuum on-load tapping switch; and moreover, the used parts have good standardization and interchangeability and can be processed easily, which is favorable to the batch production of the high-low shifting column change-over switch.

Description

technical field [0001] The invention relates to a high-low dial changeover switch, in particular to a high-low dial changeover switch for an oil-immersed vacuum on-load tap changer switch. Background technique [0002] In the existing on-load tap changer, the on-load switching of the internal diverter switch usually depends on the main contact, the main on-off contact, the transition contact, the transition resistor and other components according to a certain preset action program. Load switching, in the working mode of this structure, the main purpose of the main on-off contact and the transition contact is to break the current, so there is an arc drawn, which will damage the transformer oil, thus reducing its insulation level, and the transformer Oil carbonization is serious, affecting normal use. Moreover, the decline of the insulation capacity of transformer oil must pass qualified maintenance before the switch can be used normally. [0003] Therefore, the carbonizatio...

Claims

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Application Information

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IPC IPC(8): H01H1/56H01F29/04
Inventor 吴选霞宋涛陶波杨波谭永禄潘凯秀王述波
Owner 贵州长征电气有限公司
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