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Overlap-type general cushion block for dry transformer

A dry-type transformer, general-purpose technology, applied in transformer/inductor parts, transformer/inductor coils/windings/connections, electrical components, etc. Achieve the effects of increasing safety and reliability, thinning the design, and reducing internal air bubbles

Active Publication Date: 2017-06-09
YANGZHOU YIMING ELECTRICAL SCI & TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] In view of the above problems, the purpose of the present invention is to provide a superimposed universal dry-type transformer block to solve the problem that the current dry-type block cannot be supplied quickly and cannot be used universally

Method used

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  • Overlap-type general cushion block for dry transformer
  • Overlap-type general cushion block for dry transformer
  • Overlap-type general cushion block for dry transformer

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0050] Such as Figure 1-12As shown, a superimposed general-purpose dry-type transformer block includes an upper block 1, a lower block 2, a high-voltage coil limiting device 3, an insulating cylinder limiting device 4 and a block positioning device 7; the upper block 1 is formed by stacking several thin plate units 11; a rectangular hole 114 is opened in the middle of the thin plate unit 11, and the lower surface of the thin plate unit 11 is concavely formed on both sides along the length direction of the rectangular hole 114 to form a displacement groove 111, the groove of the displacement groove 111 A number of through-limiting holes 112 are evenly distributed on the surface; a number of positioning grooves 115 are provided on the upper surface of the thin plate unit 11, and a number of positioning protrusions 113 are provided on the lower surface, and the positioning protrusions 113 of the adjacent thin plate unit 11 are aligned with the positioning grooves. 115 for engagi...

Embodiment 2

[0057] Such as Figure 13 As shown, the thin plate units 11 with different lengths are selected to be superimposed in a certain order, and the appearance is trapezoidal, which can save more materials. At the same time, after stacking to a certain height, it can naturally avoid dry-changing iron cores and extend the creepage distance. Other structural settings are the same as in Embodiment 1.

Embodiment 3

[0059] A superimposed general-purpose dry-type transformer spacer, the thin-plate unit 11 is also provided with a number of cooling holes penetrating through the thin-plate unit 11, and other structures are the same as those in Embodiment 1 or 2. The heat dissipation holes mainly play the role of heat dissipation and improve the working stability of the dry-type transformer.

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Abstract

The invention provides an overlap-type general cushion block for a dry transformer, which consists of an upper cushion block, a lower cushion block, a position-limiting device for high-voltage coils, a position-limiting device for insulation cylinders and a positioning device for the cushion block, wherein the upper cushion block is formed by the superposition of a plurality of thin-plate elements. The overlap-type general cushion block for the dry transformer has the advantages of being achievable in free combination, strong in generality, capable of meeting the needs of different types of devices and wide in application prospect.

Description

technical field [0001] The invention relates to the technical field of power transformers, and more specifically, to a dry-type transformer pad. Background technique [0002] Pads are insulating products that carry, compress and position high and low voltage coils and insulating cylinders in dry-type transformers (hereinafter referred to as dry transformers), and are divided into upper and lower pads. [0003] According to the technical requirements of the dry-type transformer manufacturer, the length, height, width, and height of the insulating cylinder in the middle of the pad through the air insulation gap of the pad should be manufactured according to these technical requirements. Due to different voltage levels and different capacity dry-type transformers use different block specifications, even two dry-type transformer manufacturers have different designs for dry-type transformers with the same voltage level and the same capacity. Cause present pad manufacturer all ca...

Claims

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Application Information

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IPC IPC(8): H01F27/30H01F27/32
CPCH01F27/306H01F27/324
Inventor 高秀华
Owner YANGZHOU YIMING ELECTRICAL SCI & TECH
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