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220 kv de-icing rectifier transformer

A technology of rectifying transformers and transformer windings, which is applied in the field of transformer manufacturing, can solve problems such as difficulty in adapting to long-distance transmission line DC melting ice, and achieve the effect of light weight, obvious advantages, and small footprint

Active Publication Date: 2015-07-15
BAODING TIANWEI GROUP TEBIAN ELECTRIC
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, since there is no matching 220kV ice-melting rectifier transformer, it is difficult to match with high-power rectifiers, and it is difficult to meet the needs of DC ice-melting long-distance transmission lines

Method used

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  • 220 kv de-icing rectifier transformer
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Experimental program
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Effect test

Embodiment 1

[0015] Embodiment one, with reference to the attached figure 1 , without a regulating winding.

Embodiment 2

[0016] Embodiment two, referring to the attached figure 2 , the voltage regulating range exceeds 10%, and a voltage regulating winding 8 is provided.

[0017] The magnetic circuit of the present invention adopts a three-phase three-column iron core, and adopts high-permeability grain-oriented silicon steel sheets to be laminated; when the voltage regulation range exceeds 10%, a separate voltage regulation winding 8 is arranged on the side of the high voltage winding, and the voltage regulation winding is arranged on the Outside the high voltage winding;

[0018] The low-voltage winding is divided into low-voltage basic winding I, low-voltage phase-shifting winding I, low-voltage basic winding II and low-voltage phase-shifting winding II. The four windings are arranged in the axial direction. Compared with the radial arrangement, the axial arrangement takes up less space and the transformer loss is lower. , small size, light weight, obvious advantages. The head and tail lead...

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PUM

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Abstract

The invention relates to a 220 kV de-icing rectifier transformer, which belongs to the technical field of manufacturing of transformers. The technical scheme is that 220 kV three-phase voltage is inputted at a high-voltage side, and 12 pulses are outputted at a low-voltage side winding through phase shift; a magnetic circuit adopts a three-phase three-limb core; each transformer winding is formed by a low-voltage winding and a high-voltage winding; when the voltage regulation range exceeds 10%, an independent voltage regulation winding is arranged at the high-voltage side; the transformer windings are concentrically arranged and each transformer winding sleeves a core limb, and each phase is radially formed by the core limb (1), the low-voltage winding and the high-voltage winding (7) from interior to exterior in sequence; if a voltage regulation winding (8) is arranged, the voltage regulation winding is arranged at the outer side of the high-voltage winding. The 220 kV de-icing rectifier transformer has the positive effects that the four low-voltage windings are axially arranged, in comparison with radial arrangement, the axial arrangement has small occupied space, low transformer loss, small volume, light weight and remarkable advantages; the 220 kV de-icing rectifier transformer is assorted with a high-power rectifier, and is suitable for de-icing of a long-distance power transmission line.

Description

technical field [0001] The invention relates to a 220kV ice-melting rectifier transformer, which belongs to the technical field of transformer manufacture. Background technique [0002] Transmission lines in southern my country are seriously affected by icing disasters, such as Guizhou, Hunan, Hubei and other places where ice disasters occur frequently, causing huge irreparable economic losses. In order to effectively prevent the occurrence of serious ice disasters, in recent years, researchers have explored the application of DC deicing technology to power transmission lines. Compared with anti-icing measures, this technology requires less investment, obvious economic benefits, and broad development prospects. However, since there is no matching 220kV ice-melting rectifier transformer, it is difficult to match with high-power rectifiers, and it is difficult to meet the needs of DC ice-melting long-distance transmission lines. Contents of the invention [0003] The object...

Claims

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Application Information

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IPC IPC(8): H01F29/00H01F27/30H01F27/36H01F27/12
Inventor 刘新颜张亚杰郑赞郭艳君
Owner BAODING TIANWEI GROUP TEBIAN ELECTRIC