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High-voltage coil of dual-voltage dry-type power transformer

A technology of high-voltage coils and distribution transformers, applied in transformers, transformers/inductor coils/windings/connections, variable transformers, etc., can solve problems such as 6.3kV free switching, achieve simple structure, reduce investment costs, The effect of avoiding waste

Inactive Publication Date: 2014-10-01
WUXI ENOW ELECTRIC POWER EQUIP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the primary side voltage of this high-voltage coil can only be 10.5kV, which cannot be freely switched to 6.3kV during customer use

Method used

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  • High-voltage coil of dual-voltage dry-type power transformer
  • High-voltage coil of dual-voltage dry-type power transformer
  • High-voltage coil of dual-voltage dry-type power transformer

Examples

Experimental program
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Embodiment Construction

[0011] The present invention will be further described below in conjunction with specific drawings and embodiments.

[0012] As shown in the figure, the high-voltage coil of the dual-voltage dry-type distribution transformer in the embodiment includes the upper half of the high-voltage coil winding 1 and the lower half of the high-voltage coil winding 2 that are set on the same iron core, and the upper half of the high-voltage coil winding 1 Separated from the lower half of the high-voltage coil winding 2 by an insulating pad, the upper half of the high-voltage coil winding 1 and the lower half of the high-voltage coil winding 2 are symmetrically arranged up and down; Head end joint 1a, upper second head end joint 1b, upper first tail end joint 1c and upper second tail end joint 1d; the lower half high voltage coil winding 2 has lower first head end joint 2a, lower second Head-end joint 2b, first end-end joint 2c of the lower section and second end-end joint 2d of the lower se...

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PUM

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Abstract

The invention relates to a high-voltage coil of a dual-voltage dry-type power transformer. The high-voltage coil comprises an upper half section high-voltage coil winding and a lower half section high-voltage coil winding which are arranged on the same iron core in a sleeved mode. The high-voltage coil is characterized in that the upper half section high-voltage coil winding is provided with an upper section first head end connector, an upper section second head end connector, an upper section first tail end connector and an upper section second tail end connector; the lower half section high-voltage coil winding is provided with a lower section first head end connector, a lower section second head end connector, a lower section first tail end connector and a lower section second tail end connector; connection can be achieved between the upper section first head end connector and the upper section second head end connector, between the upper section first tail end connector and the upper section second tail end connector, between the upper section second head end connector and the upper section first tail end connector, between the lower section first head end connector and the lower section second head end connector, between the lower section first tail end connector and the lower section second tail end connector, and between the lower section second head end connector and the lower section first tail end connector through connecting pieces respectively. The high-voltage coil is low in investment cost and saves resources.

Description

technical field [0001] The invention relates to a dry-type distribution transformer coil, in particular to a high-voltage coil of a dual-voltage dry-type distribution transformer, which belongs to the technical field of transformers. Background technique [0002] In the prior art, each phase winding of the high-voltage coil of a 10.5kV dry-type distribution transformer is wound in four sections, and the sections are separated from each other by insulating pads. The high-voltage windings are made of copper wires, using glass fiber vacuum casting technology. However, the primary side voltage of this high-voltage coil can only be 10.5kV, which cannot be freely switched to 6.3kV during customer use. Contents of the invention [0003] The purpose of the present invention is to overcome the deficiencies in the prior art, and provide a high-voltage coil of a dual-voltage dry-type power transformer, which has a simple structure, can respectively realize 6.3kV or 10.5kV voltage lev...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H01F27/28H01F29/02
Inventor 邬小勇
Owner WUXI ENOW ELECTRIC POWER EQUIP