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Step switch

A stepping switch and switch box technology, applied in the direction of electric switches, electric selector switches, electrical components, etc., can solve problems such as complex operating mechanisms, and achieve the effects of simplifying mechanical devices, saving space and position, and sturdy and durable structure

Inactive Publication Date: 2003-11-05
MASCHFAB REINHAUSEN GEBR SCHEUBECK GMBH & CO KG
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Also, the synchronous manipulation of the vacuum switch boxes during the switching sequence also requires high precision and relatively complex manipulation mechanisms

Method used

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Experimental program
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Embodiment Construction

[0019] First, the basic structure of the step switch according to the invention will be explained with the aid of FIG. 1 . The entire device is located in a housing 1 which has an electrically insulating rear housing plate 2 . Attached to the rear housing plate 2 are contact carriers 3 made of electrically insulating material parallel to one another, each carrying a fixed selector contact 4 . Provision is here made for each contact carrier 3 for one phase; the contact carriers 3 are arranged parallel to one another and the fixed selector contacts 4 are arranged in a consistent manner for each of the three phases. As shown in the figure, the fixed selector contacts 4 are always alternately arranged on the left and the right of the contact carrier 3 , offset from each other. The wiring arrangement of the fixed selector contact 4 will be described later. Longitudinal guides 5 are provided on the side walls of the housing 1 , on which each one Maltese chain segment 6 is guided s...

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PUM

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Abstract

The invention relates to a step switch. Two vacuum switchgear cells (34, 35) are provided as electrical switching means. The fixed selector contacts (n) are arranged alternately in parallel strips and are interconnectedy means of two moveable mechanical contacts (8, 9) existing in a fixed relationship to each other. A mechanical changeover contact (28) is actuated by means of an energy storage mechanism that is triggered after a prior lifting movement and both vacuum switchgear cells (34, 35) for each phase are simultaneously actuated.

Description

technical field [0001] The invention relates to a step switch for uninterrupted switching between different winding taps of a step adjustable transformer. Such a step switch is known from WO 94 / 02955. Background technique [0002] Step switches can be used to adjust the voltage, active power and reactive power of the grid by changing the transformation ratio under load. In a single-phase step switch known from WO 94 / 02955, the fixed contacts, which are each electrically connected to a tap of a step adjustable transformer winding, are arranged vertically in a line. Furthermore, two separately linearly movable selector contacts are provided, which sweep over the stationary selector contacts independently of one another. In known step switches, the actuation of the moving selector contact is carried out by means of a drive mechanism, which essentially consists of a continuously drivable tightening carriage and an output part which can be tightened by means of a spring accumul...

Claims

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Application Information

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IPC IPC(8): H01H9/00
CPCH01H9/0038H01H63/00
Inventor 迪特尔·多纳尔沃纳·弗里得里希克劳斯·赫普夫尔西尔克·弗雷得
Owner MASCHFAB REINHAUSEN GEBR SCHEUBECK GMBH & CO KG