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On-load tap changer, method for installing load transfer switch insert in on-load tap changer, and kerosene drain screw

A technology of on-load tap-changing and switching, which is applied in the direction of electric switches, pipes/pipe joints/pipe fittings, pipe components, etc. It can solve the problems of large time consumption, inconvenient special wrench, impracticality, etc., and achieve the effect of simple inspection

Active Publication Date: 2016-03-02
MASCHFAB REINHAUSEN GEBR SCHEUBECK GMBH & CO KG
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The kerosene drain plug can only be actuated from the inside after the switching tube has been removed and with a rather long and thus impractical and inconvenient special wrench, which means a huge time-consuming and also a cost factor

Method used

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  • On-load tap changer, method for installing load transfer switch insert in on-load tap changer, and kerosene drain screw
  • On-load tap changer, method for installing load transfer switch insert in on-load tap changer, and kerosene drain screw
  • On-load tap changer, method for installing load transfer switch insert in on-load tap changer, and kerosene drain screw

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Embodiment Construction

[0044] The same reference numerals are used for identical or identically acting elements of the invention. Furthermore, for the sake of clarity, only the reference numerals necessary for describing the respective figure are shown in the individual figures. The embodiment shown only constitutes an example of how the on-load tap changer according to the invention and the kerosene drain plug according to the invention can be constructed and therefore does not constitute a final limitation of the invention.

[0045] figure 1 A perspective view of an embodiment of the on-load tap-changer according to the invention in the form of a three-phase on-load tap-changer or on-load selector 1 is shown. The on-load selector 1 has a drive 3 , for example an electric motor, with a transmission 5 , which pulls up a force store (not shown).

[0046] If the force accumulator is fully pulled up, ie tensioned, it is unlocked, its energy is released suddenly and the switching line 15 of the on-loa...

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PUM

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Abstract

The invention relates to an on-load tap changer (1), comprising a load transfer switch insert (14) and an oil suction pipe (60), and to a method for installing a load transfer switch insert (14) by means of the switching tube (15) and the oil suction pipe (60). The oil suction pipe (60) is arranged centrally, and coaxially along an axis (A) of the on-load tap changer (1), within the switching tube (15). The on-load tap changer (1) has a kerosene drain screw (70), which is attached in a bottom (21) of the on-load tap changer (1) in such a way that the kerosene drain screw is arranged coaxial to the axis (C) of the oil suction pipe (60), to the axis (B) of the switching tube (15), and to the axis (A) of the on-load tap changer (1). A bearing ring (53) is acted upon on one side and radially to the axis (A) of the on-load tap changer (1) by an elastic element (54) in such a way that the switching tube (15) and the oil suction pipe, which both interact (60) with the bearing ring (53) in a form-closed manner, are centered about the axis (A) of the on-load tap changer.

Description

technical field [0001] The invention relates to an on-load tap changer. The invention relates in particular to an on-load tap changer comprising a diverter line of the on-load tap changer and an oil suction line, wherein the oil suction line is arranged centrally and coaxially inside the changeover line along the axis. In addition, a kerosene drain plug is provided, which is installed in the bottom of the on-load tap-changer in such a way that it is aligned with the axis of the oil suction pipe, the axis of the diverter pipe and the axis of the on-load tap-changer. axis. [0002] The invention also relates to a method for installing an on-load changer insert and an oil suction pipe into an oil reservoir of an on-load tap-changer. [0003] Furthermore, the invention relates to a kerosene drain plug in the base of an on-load tap-changer. Background technique [0004] On-load tap-changers ("on-load tap-changers" in English, abbreviated OLTC) are generally known and common in...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H01H9/00
CPCH01H9/0044H01H2009/005F16L55/1108H01H9/0005
Inventor K·赫普夫尔S·雷德H·茨维尔格尔迈尔
Owner MASCHFAB REINHAUSEN GEBR SCHEUBECK GMBH & CO KG
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