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On-load tap changer with an energy storage mechanism

A technology of on-load tap changer and accumulator, which is applied in the direction of electric switch, power device inside the switch, electrical components, etc., and can solve the problem that the mechanical durability of the tension spring is no longer sufficient.

Active Publication Date: 2008-12-31
MASCHFAB REINHAUSEN GEBR SCHEUBECK GMBH & CO KG
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, at present due to the high reliability of the vacuum switching units offered and used and the advantages of vacuum switching technology, in general, the maintenance intervals of the on-load tap-changers can be increased, therefore, the used in known accumulators The mechanical durability of the tension spring is no longer sufficient and it is becoming more and more prominent as a defect

Method used

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  • On-load tap changer with an energy storage mechanism
  • On-load tap changer with an energy storage mechanism

Examples

Experimental program
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Embodiment Construction

[0012] Figure 1 will first be explained in detail. Here, a carrier plate 1 is shown, on which the entire energy store and the transmission for actuating the on-load tap-changer are arranged. The carrier plate 1 has fastening corner profiles 2 . Also shown in the figure is a gear 3, which is connected to a not-shown motor drive shaft. The gear 3 drives a drive element 4 via its toothing 5 . The drive part 4 in turn has two symmetrical stops 6 , 7 which correspond to the drive crank 8 . This is explained in more detail below. A tie rod head 9 of a tie rod 10 is mounted rotatably on top of the drive crank 8 . The tie rod 10 is connected to other components of the energy store according to the invention, which will be explained in more detail below. If the drive crank 8 is fastened to a control shaft 11 , the control shaft is guided vertically downward through the support plate and has a Maltese crank (not shown here) at its lower end. This Maltese crank is shown in FIG. 2 a...

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Abstract

The invention relates to an on-load tap changer having an energy storage mechanism for changing over, without any interruptions, between different winding taps of a tap-changing transformer on load. According to the invention, the energy storage mechanism has one or more compression springs, which are tensioned at the beginning of a changeover operation. In comparison with the tensile springs used to date with such energy storage mechanisms, the compression springs have markedly greater long-term strength.

Description

technical field [0001] The invention relates to an on-load tap-changer with an energy store for switching between different winding taps of a tapped transformer without interruption under load. Background technique [0002] By the applicant's literature "on-load tap-changer VV-Company Description (Laststufenschalter VV-Betriebsanleitung)" BA164 / 03de version, known such an on-load tap-changer with an associated energy store. Wherein, this on-load tap-changer will be used for powerless preselection of the tap changer combined with the functions of the load changeover switch for actual switching. [0003] The energy store of this known on-load tap-changer has a spring plate, to which a plurality of tension springs are each fastened with one end, each of which is hinged at its other end to a bearing point. The spring plate is in turn fastened rotatably at its free end to the drive crank. The drive crank, which is fastened on the control shaft, is actuated by the free-runni...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H01H9/00H01H3/30
CPCH01H3/30H01H9/0027H01H9/00
Inventor W·阿尔布雷希特T·M·胡贝尔
Owner MASCHFAB REINHAUSEN GEBR SCHEUBECK GMBH & CO KG