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On-load tap-changer

A technology of on-load tap changer and tap changer, which is applied in the direction of electric switch, magnetic field micromechanical switch, magnetic field/electric field switch, etc. It can solve the problems of large volume and heavy maintenance workload, and achieve reduced volume, reduced installation process, The effect of avoiding mechanical wear

Inactive Publication Date: 2020-06-19
岳盛仙
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] The purpose of the present invention is to provide an on-load tap-changer to solve the problems of large volume and heavy maintenance workload caused by mechanical switching and tapping of the existing on-load tap-changer

Method used

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Examples

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Embodiment Construction

[0023] To further illustrate the various embodiments, the present invention is provided with accompanying drawings. These drawings are a part of the disclosure of the present invention, which are mainly used to illustrate the embodiments, and can be combined with related descriptions in the specification to explain the operating principles of the embodiments. With reference to these contents, those skilled in the art should understand other possible implementations and advantages of the present invention. Components in the figures are not drawn to scale, and similar component symbols are generally used to denote similar components.

[0024] The present invention will be further described in conjunction with the accompanying drawings and specific embodiments.

[0025] The invention provides an on-load tap changer, which is used to switch between different taps in the winding of an adjustable transformer, including a switch group and a tap selector. figure 1 The circuit diagra...

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Abstract

The invention relates to an on-load tap-changer which is used for realizing switching between different taps in a transformer winding, and comprises a switching switch group and a tapping selector. The switching switch group comprises two groups of switching switches which are arranged in parallel; each group of switching switches comprises a selection switch and at least one transition switch which are arranged in parallel, and each transition switch is connected with a transition resistor in series; the tapping selector comprises a plurality of tapping switches, and each tapping switch is connected with one tapping point of the transformer in series; a plurality of tapping switches of the tapping selector are divided into two groups according to an odd-even sequence; all tapping switchesin each group are arranged in parallel, and the two groups of tapping switches are respectively connected with one of the two groups of switching switches. The selection switches and the transition switches are both magnetic control vacuum switches, and the tapping switches are magnetic control switch, so that mechanical switching and tapping in the prior art are converted into electric control switching and tapping.

Description

technical field [0001] The invention relates to the technical field of electric power transmission and transformation, in particular to an on-load tap changer. Background technique [0002] On-load tap changer refers to a voltage regulating device suitable for operation under transformer excitation or load, and used to change the tap connection position of transformer windings. The basic principle is to switch between taps in the transformer winding without interrupting the load current, thereby changing the number of turns of the winding, that is, the voltage ratio of the transformer, and finally realizing the purpose of voltage regulation. [0003] The structure of the existing on-load tap-changer can be divided into three parts, namely, the diverter switch, the tap selector and the operating mechanism. The switching between different tap windings is realized by driving the diverter switch and the tap selector through the operating mechanism. . At present, all on-load ta...

Claims

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Application Information

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IPC IPC(8): H01F29/04H01F27/40H01H36/00H01H33/664
CPCH01F27/40H01F29/04H01H33/664H01H36/00H01H2036/0093
Inventor 岳盛仙
Owner 岳盛仙
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