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Reinforcement method for improving seismic performance of large-size transformer and large-size transformer

A seismic performance, transformer technology, applied in the direction of transformer/reactor installation/support/suspension, transformer/inductor shell, transformer/inductor coil/winding/connection, etc., can solve the problem of transformer maximum displacement, bushing fracture, Pull coupling equipment and other issues to achieve the effect of ensuring convenience and safety and improving overall rigidity

Pending Publication Date: 2018-04-27
EXAMING & EXPERIMENTAL CENT OF ULTRAHIGH VOLTAGE POWER TRANSMISSION COMPANY CHINA SOUTHEN POWER GRID
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the above-mentioned reinforcement and transformation did not reinforce the weakest link of the transformer during the earthquake, the lifting seat and the bushing, so it is difficult to limit the maximum displacement of the transformer. Since the maximum displacement often occurs at the top of the bushing, the above-mentioned transformation cannot fundamentally solve the problem of the transformer in the earthquake. Problems with bushing breakage or pull on coupling equipment due to excessive displacement

Method used

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  • Reinforcement method for improving seismic performance of large-size transformer and large-size transformer
  • Reinforcement method for improving seismic performance of large-size transformer and large-size transformer
  • Reinforcement method for improving seismic performance of large-size transformer and large-size transformer

Examples

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Embodiment 1

[0032] A reinforcement method for improving the anti-seismic performance of a large-scale transformer. The large-scale transformer includes a transformer box 1, a transformer bushing 2, and a riser 3. The riser 3 is fixed on the top and side of the transformer box 1. In the transformer The top and side of the box body 1 are respectively provided with a plurality of stiffening plates 5 and ribs 6 arranged in parallel and evenly, and the transformer bushing 2 is fixedly connected with the rising seat 3, and the specific steps are as follows:

[0033] Step 1. Select the structural size and installation position of the hoop 4 and the support bar 4 according to the shape and size of the raised seat 3 of the large transformer and the quantity and position of the stiffening plate 5 or the rib 6; The outer diameter of the raised seat 3 is matched; in the step 2, the hoop 4 is sleeved on the upper end of the raised seat 3, and the distance from the top of the raised seat 3 is 1 / 5 of the...

Embodiment 2

[0036] A large-scale transformer, including a transformer box 1, a transformer bushing 2, a riser 3, a hoop 4, and at least two support bars 4. The riser 3 is fixed on the top or side of the transformer box 1. The top and side of the transformer box 1 are respectively provided with a plurality of stiffening plates 5 and ribs 6 arranged in parallel and evenly, and the transformer bushing 2 is fixedly connected with the rising seat 3; the hoop 4 is sleeved and fixed on the On the raised seat 3, the two ends of the support bar 4 are respectively connected with the hoop 4 and the stiffening plate 5 or the reinforcing rib 6, thereby forming a limit support for the raised seat 3. The hoop 4 is sleeved on the upper end of the raised seat 3, and the distance from the top of the raised seat 3 is 1 / 5 of the height of the raised seat 3. Described hoop 4 is two semicircular rings, and its diameter is slightly larger than the outer diameter of raising seat 3, and total length is slightly l...

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Abstract

A large-size transformer comprises a transformer box body, a transformer sleeve, an ascending seat, a hoop and at least two support strips, wherein the ascending seat is fixed at the top of a side surface of the transformer box body, a plurality of reinforcement plates and a plurality of reinforcement ribs are respectively arranged at the top and the size surface of the transformer box body and are uniformly arranged in parallel, the transformer sleeve is fixedly connected with the ascending seat, the hoop sleeves and is fixed on the ascending seat, two ends of each support strip are respectively connected with the hoop and the reinforcement plates or reinforcement ribs so that limited support is formed on the ascending seat. The large-size transformer has the advantage that the vacancy ofa seismic reinforcement method or measure of the ascending seat of a current large-size transformer is made up.

Description

technical field [0001] The invention relates to the technical field of anti-seismic strengthening of transformers, in particular to a strengthening method for improving the anti-seismic performance of large transformers and large transformers. Background technique [0002] Large-scale transformers are key substation equipment in power transmission and transformation projects. They play the role of increasing and transforming voltage at the power station and reducing voltage at the user end, thereby reducing the loss of electric energy in the power transmission link, so they play an important role in power transmission and transformation projects. . Large-scale transformers are usually composed of iron cores and coils, oil tanks and oil conservators filled with mineral oil, risers, radiators, bushings of different voltage levels, and other components. Among them, the capacity of small transformers is 500kVA and below; the capacity range of medium-sized transformers is 630-63...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H01F27/02H01F27/29H01F27/06
CPCH01F27/02H01F27/06H01F27/29
Inventor 杨旭王奇孙勇楚金伟张长虹黎卫国陈伟民
Owner EXAMING & EXPERIMENTAL CENT OF ULTRAHIGH VOLTAGE POWER TRANSMISSION COMPANY CHINA SOUTHEN POWER GRID
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