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220KV transformer movable sleeve convenient to overhaul

A 220KV, movable sleeve technology, applied in the field of transformers, can solve the problems of affecting the sealing performance of the sealing strip at the sleeve flange, reducing the service life of metal aging, and cumbersome operation process, so as to prevent eddy current heating, reduce the impact, and improve The effect of work efficiency

Active Publication Date: 2021-07-13
HUANENG SHANGHAI SHIDONGKOU SECOND POWER PLANT
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Since the sleeve is also responsible for the sealing function, long-term heating will cause metal aging and reduce the service life. Its hanging down, the operation process is too cumbersome

Method used

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  • 220KV transformer movable sleeve convenient to overhaul
  • 220KV transformer movable sleeve convenient to overhaul
  • 220KV transformer movable sleeve convenient to overhaul

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0031] refer to Figure 1-9 , is the first embodiment of the present invention. This embodiment provides a 220KV transformer movable sleeve that is convenient for maintenance. The 220KV transformer movable sleeve for easy maintenance includes a sleeve assembly 100 and a connection assembly 200. Through the connection assembly 200, the The end cap 102 is separated.

[0032] Specifically, the sleeve assembly 100 includes a sleeve 101 and an end cap 102 , the sleeve 101 is provided with an inspection port M, and the inspection port M is matched with the end cap 102 .

[0033] The connection assembly 200 connects the inspection port M and the end cover 102 , and includes a rotating part 201 , a moving part 202 and a driving part 203 .

[0034] Wherein, the rotating member 201 includes a first track plate 201a fixed on the inner side of the inspection port M, a first connecting plate 201b arranged on the side of the first track plate 201a, and a first connecting plate 201b connect...

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PUM

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Abstract

A 220KV transformer movable sleeve convenient to overhaul disclosed by the present invention comprises a sleeve assembly and a connecting assembly, the sleeve assembly comprises a sleeve and an end cover, and the sleeve is provided with an access hole; the access hole is matched with the end cover, and the connecting assembly comprises a rotating part, a moving part and a driving part. According to the device, the access hole is formed in the sleeve assembly, maintenance can be carried out only by opening the access hole, the whole movable sleeve does not need to be dismantled, and the working efficiency is greatly improved; a rubber strip is combined with a metal sleeve, so that the influence of magnetic leakage on the metal movable sleeve is reduced, and an eddy current heating phenomenon is prevented; and through the driving piece, the end cover can be automatically opened, and the time and labor are saved.

Description

technical field [0001] The invention relates to the technical field of transformers, in particular to a 220KV transformer movable sleeve which is convenient for maintenance. Background technique [0002] The movable sleeve on the low-voltage side of the high-voltage transformer is the connection point between the generator outlet and the transformer. When the transformer is overhauled, the movable sleeve must be removed when disconnecting the outlet on the low-voltage side. During the routine temperature inspection of each power plant, it was found that the active sleeve of the main transformer had different degrees of heating. Since the sleeve is also responsible for the sealing function, long-term heating will cause metal aging and reduce the service life. It hangs down, and the operation process is too loaded down with trivial details. Contents of the invention [0003] The purpose of this section is to outline some aspects of embodiments of the invention and briefly ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H01F27/04H01F27/34
CPCH01F27/04H01F27/34H01F2027/348H01F27/2828H01F27/306H01F27/02
Inventor 郝爽童国平李峥嵘吕杰
Owner HUANENG SHANGHAI SHIDONGKOU SECOND POWER PLANT