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Tap changer

A tap-changer, direct technology, applied in the field of tap-changers, which can solve the problems of complex and expensive wire bases and transformer cardboards

Inactive Publication Date: 2013-05-01
MASCHFAB REINHAUSEN GEBR SCHEUBECK GMBH & CO KG
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] The necessary wire holders and transformer cardboard are complex and expensive

Method used

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  • Tap changer
  • Tap changer
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Examples

Experimental program
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Effect test

Embodiment Construction

[0028] exist figure 1 A tapped transformer 1 is shown in , which has a transformer vessel 2 filled with insulating oil completely surrounding it. Regulating windings 3 for all three phases are arranged in the transformer vessel 2 . On the side of the transformer 1 is arranged a tap changer 4 which has a housing 5 which only partially surrounds it. The housing 5 faces with its open side the opening 6 in the transformer vessel 2 . The tap changer 4 is thus in communication with the oil volume inside the transformer vessel 2 . Although a sealing device 7 is also provided here, which seals the connection point between the connection flange 8 of the transformer vessel 2 and the connection flange 9 of the housing 5 of the tap changer 4 to the outside, the common oil volume does not are separated, thereby eliminating the need for a transformer cardboard unlike the prior art. The sealing device 7 here serves more to seal off this single total oil volume to the outside. Also shown...

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PUM

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Abstract

The invention relates to a tap changer for switching among winding taps of a step transformer without interruption, said step transformer having an oil-filled transformer tank, wherein the tap changer does not have a separate housing or a housing that completely encloses the tap changer and is arranged on the outside of or inside the transformer tank connected to the oil filling of the step transformer.

Description

technical field [0001] The invention relates to a tap changer for uninterrupted switching between winding taps of a tapped transformer. Background technique [0002] Such tap changers are known in principle as built-in switches or add-on switches. [0003] A typical in-line switch usually has a load switcher in a separate tank for supposedly switching the load without interruption and placed below the load switcher for preselecting the winding taps of the variable transformer to be switched next to selector. As the name implies, this recessed switch is fully placed and assembled from above into the oil-filled transformer vessel. In this case, the separate oil tank of the load switch ensures that the oil volume of the load switch does not mix with the surrounding insulating oil located in the transformer tank. In this case, it is generally necessary to guide the electrical conductors as so-called conductor holders from the individual winding taps located inside the transfo...

Claims

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Application Information

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IPC IPC(8): H01F27/02H01F29/04H01H9/00
CPCH01F27/12H01H9/0044H01F29/04H01F27/02H01H9/0011H01H9/00
Inventor D·多纳尔H·黑林K·林德尔
Owner MASCHFAB REINHAUSEN GEBR SCHEUBECK GMBH & CO KG