Steel pulling strip fixing structure for transformer

A fixed structure and transformer steel technology, applied in the field of transformers, can solve problems affecting the safe operation of transformers, short-circuiting steel straps to iron cores, accelerating the aging of the strap insulation, etc., to avoid electrical breakdown of insulation, reduce loss of structural parts, and improve Effect of impact mechanical strength

Inactive Publication Date: 2015-09-02
CHANGZHOU TOSHIBA SHUDIAN TRANSFORMER
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] The steel pull belt device used in the prior art pays attention to solving the problem of convenient installation and preventing loose operation, but ignores the influence of leakage magnetic field
Since the steel strap is located in the area of ​​high leakage magnetic field, when the two ends of the steel strap and the strap fi

Method used

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  • Steel pulling strip fixing structure for transformer
  • Steel pulling strip fixing structure for transformer
  • Steel pulling strip fixing structure for transformer

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Embodiment Construction

[0016] The present invention will now be described in further detail in conjunction with the accompanying drawings and preferred embodiments. These drawings are all simplified schematic diagrams, which only illustrate the basic structure of the present invention in a schematic manner, so they only show the configurations related to the present invention.

[0017] Such as Figure 1-3 As shown, a transformer steel strap fixing structure includes a steel strap body 9 with bolt seats welded at both ends, fastening bolts 5 and fastening nuts 7, butterfly spring 4, insulating paper tube 8, insulating washer 2 and steel The washer 3; the two ends of the steel drawstring body 9 are respectively fixed on the drawstring fixing plate 10 through the cooperation between the fastening bolt 5 and the fastening nut 7 and connected with the high / low pressure upper / lower clip 1. ;

[0018] Such as image 3 As shown, one of the two ends connected between the steel drawstring body 9 and the h

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PUM

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Abstract

The invention relates to a steel pulling strip fixing structure for a transformer. An insulating washer, a steel washer and a butterfly spring are sequentially arranged at one end of two ends, connected with high/low pressure upper/lower clamping pieces, of a steel pulling strip body and arranged from the mounting surface of the outer side of a pulling strip mounting plate; a steel washer and a butterfly spring are arranged at the other end; the mounting surface of the outer side of the pulling strip mounting plate directly contacted with the steel washer is not coated with a coating film; a notch is milled in the neck part of a pulling strip fastening bolt on one side where the insulating washer is mounted, and the notch is wound with an insulating tape. The flux leakage influence can be reduced, loss of a structural member is reduced, and the condition that short-circuit accident of an iron core is caused by a steel pulling strip due to the fact that pulling strip insulation ageing is accelerated as a result of local overheating is prevented. Meanwhile, reliable electrical communication between one side of the steel pulling strip and high/low pressure upper/lower clamping pieces can be guaranteed, discharge to the iron core due to the fact that two ends of the steel pulling strip are completely insulated and blocked in a high-leakage magnetic field and suspension electric potential is formed is prevented, insulated electrical breakdown is avoided, and safe and reliable operation of a transformer product is guaranteed.

Description

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Claims

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Application Information

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Owner CHANGZHOU TOSHIBA SHUDIAN TRANSFORMER
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