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Plug-in oil-air bushing 110kv transformer

An air bushing and transformer technology, which is applied in the direction of transformer/inductor cooling, transformer/inductor parts, electrical components, etc., and can solve problems such as complicated and cumbersome operations

Active Publication Date: 2022-03-22
GUANGZHOU POWER SUPPLY BUREAU GUANGDONG POWER GRID CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

At present, the middle end of transformer oil-air bushing oil is directly installed inside the transformer oil tank (see figure 1 ), when the bushing fails, the replacement of the bushing transformer body needs to go through multiple steps such as draining oil, sorting out the leads of the bushing, replacing the bushing, vacuuming, oiling, hot oil circulation, and standing. The operation is complicated and cumbersome and requires a lot of time (110kV transformer needs not less than 144 hours)

Method used

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  • Plug-in oil-air bushing 110kv transformer
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  • Plug-in oil-air bushing 110kv transformer

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0018] Embodiment 1: as figure 2 As shown, the present invention provides a plug-in oil-air bushing 110kV transformer, including a riser 16, a bushing 3 installed inside the riser 16, and a sleeve between the riser 16 and the bushing 3 The tube base 2 and the sleeve base 2 are installed inside the rising seat 16, and the sleeve pipe 3 is installed inside the sleeve base 2. The bottom end of the casing 3 is provided with a casing plugging head 13, and the bottom of the casing base 2 is provided with a supporting casing base contact 14 at a position corresponding to the casing plugging head 13, through which the casing plugging head 13 Cooperating with the bushing base contact 14, the bushing 3 can be inserted into the bushing base 2, and the connecting terminal at the bottom of the bushing base contact 14 is fixedly connected with the transformer lead wire terminal 15, and the transformer lead wire terminal 15 is fixed on the sleeve Inside the pressure equalizing ball 12 of t...

Embodiment 2

[0027] Embodiment 2: as figure 2 , 3 , in order to prevent the casing base from being damaged due to thermal expansion and contraction of the insulating oil, a pressure balance device 9 is installed through the insulating oil injection and vacuum holes.

[0028] The upper end of the oil supply pipeline 7 is connected to the insulating oil injection and vacuum hole 6, and the lower end is respectively connected to one end of the first valve 8 and one end of the pressure balance device 9, and the other end of the pressure balance device 9 is connected to the second valve 10, the first valve The other end of 8 is connected with the other end of the second valve 10 to the upper end of the lower oil pipeline 11, and the lower end of the lower oil pipeline 11 is connected to the inside of the transformer.

[0029] The pressure balance device 9 includes a cover plate 91, a capsule 92 and a balance cavity 93, the top of the balance cavity 93 is fixed with a cover plate 91 for sealin...

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PUM

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Abstract

The invention discloses a pluggable oil-air bushing 110kV transformer, which includes a raised seat and a bushing installed inside the raised seat, and a bushing base is arranged between the raised seat and the bushing, and the bushing base is installed on Inside the riser, the bushing fits inside the bushing base. The transformer adds a bushing base to the rising seat to separate the oil-air bushing oil end from the inner cavity of the transformer body, so that the transformer bushing can be quickly replaced without discharging the transformer oil of the body.

Description

technical field [0001] The patent of the invention relates to a 110kV transformer using a plug-in oil-air bushing, which belongs to the invention technology of transformer products. Background technique [0002] With the development of society and the rapid increase of electricity consumption, the load of each substation is getting bigger and bigger. When accessories such as transformer bushings fail, the repair and replacement time is particularly critical for the safe and economical operation of the substation. At present, the middle end of transformer oil-air bushing oil is directly installed inside the transformer oil tank (see figure 1 ), when the bushing fails, the replacement of the bushing transformer body needs to go through multiple steps such as draining oil, sorting out the leads of the bushing, replacing the bushing, vacuuming, oiling, hot oil circulation, and standing. The operation is complicated and cumbersome and requires a lot of time (110kV transformer n...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H01F27/04H01F27/14
CPCH01F27/04H01F27/14
Inventor 刁均伟叶建斌曹浩恩苏海博张宇郑方晴毕凡林李波乔亚军
Owner GUANGZHOU POWER SUPPLY BUREAU GUANGDONG POWER GRID CO LTD