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Small-size voltage transformer

A voltage transformer, small technology, applied in the field of substation, can solve the problems of shortened service life, unreasonable use of space, large magnetic leakage and so on

Inactive Publication Date: 2011-04-06
大连华亿电力电器有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0002] At present, due to the shape and structure of the internal iron core of the voltage transformer of the switch cabinet, the space cannot be used reasonably, resulting in the volume of the voltage transformer being too large, which cannot meet the user's requirements for product miniaturization.
At the same time, most of the similar voltage transformers are of semi-closed structure. Due to the leakage of the iron core, semi-closed voltage transformers also need to be painted with semi-conductor paint, large magnetic flux leakage, and partial discharge not up to standard, which greatly shortens the service life of the product

Method used

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Embodiment Construction

[0011] figure 1 Shown is a top sectional view of a small voltage transformer. It includes a high-voltage coil 1, a low-voltage coil 2, an iron core 3, a high-voltage lead wire 4, and a mounting board 5. It is characterized in that: the low-voltage coil 2 of the small voltage transformer is wound on the iron core 3; the low-voltage coil 2 is fully insulated ; The high-voltage coil 1 passes through the iron core 3, and is wound with the iron core 3 as the skeleton to the required number of through-core turns and then connected to the high-voltage lead wire 4; the iron core 3 is a ring structure; the voltage transformer is fully enclosed and poured epoxy The resin 6 is fixed on the mounting plate 5.

[0012] figure 2 It is a front sectional view of the present invention. The iron core 3 has a ring structure; the voltage transformer is poured with epoxy resin 6 once and fixed on the mounting board 5. The voltage transformer is a fully enclosed structure.

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Abstract

The invention relates to the field of power transformation, in particular to a small-size voltage transformer. The small-size voltage transformer comprises a high-voltage coil, a low-voltage coil, an iron core, a high-voltage outgoing line and a mounting plate. The low-voltage coil of the small-size voltage transformer is wound on the iron core. The low-voltage coil is fully-insulated. The high-voltage coil passes through the iron core and is wound up to the number of turns by taking the iron core as a frame and connected with the high-voltage outgoing line. The iron core is of an annular structure. Epoxy resin is primarily fully-closed poured in the voltage transformer. The voltage transformer is fixed on the mounting plate.

Description

Technical field [0001] The present invention relates to the field of power transformation, in particular to a small voltage transformer. Background technique [0002] At present, due to the shape and structure of the internal iron core of the voltage transformer of the switchgear, the space cannot be reasonably used, which causes the volume of the voltage transformer to be too large and cannot meet the requirements of users for product miniaturization. At the same time, similar voltage transformer products are mostly semi-closed structures. Semi-closed voltage transformers have to be painted with semiconductor paint due to the leakage of the iron core, and the leakage of magnetic fields is large. The partial discharge is not up to standard, which greatly shortens the service life of the product. Summary of the invention [0003] In view of the defects of the prior art, the purpose of the present invention is to provide a small voltage transformer. Solve the partial discharge pro...

Claims

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Application Information

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IPC IPC(8): H01F38/24H01F27/30H01F27/245
Inventor 原国星孙远坤陈国鹏丑昌海
Owner 大连华亿电力电器有限公司
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