A method, structure and fixing bracket for fixing the lead-out pipeline of the end screen of the transformer bushing
A technology of transformer bushings and lead-out pipes, which is applied in the field of transformers, can solve problems such as unseen implementation solutions, and achieve a firm effect
Active Publication Date: 2015-08-19
STATE GRID CORP OF CHINA +1
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Problems solved by technology
[0003] At present, there is no implementation plan for the fixing method of the lead-out pipeline at the end screen of the transformer bushing
Method used
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[0021] Such as figure 1 , 2 , 3, the method for fixing the lead-out pipeline at the end of the transformer bushing comprises the following steps:
[0022] a) First lead out the lead-out pipe 1 of the end screen of the transformer's high-voltage and medium-voltage three-phase six bushings from the lead-out joint 2 of the end screen, and lead it downward to the gap between the transformer body 3 and the radiator 4;
[0023] At the raised seat flange 7, the lead pipe 1 is fixed on the raised seat flange 7 with the first pipe fixing bracket 6;
[0024] Below the raised seat 5, the lead-out pipeline 1 is fixed on the radiator oil pipe flange 9 with the second pipeline fixing bracket 8;
[0025] b) After the lead-out pipe 1 is led to the gap between the transformer body 3 and the radiator 4, it is then led horizontally to the ladder 10 of the transformer, and the third pipe fixing bracket 11 is used to complete a right-angle turn so that the direction is vertically downward, and f...
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The invention discloses a fixing method, a fixing structure and fixing supports of leading-out pipelines of a transformer bushing end screen. The fixing method includes the following steps: a), leading six high-voltage and medium-voltage three-phase leading-out pipelines of the transformer bushing end screen out of end screen leading-out joints and down to gaps between a transformer body and radiators; at ascending base flanges, fixing the leading-out pipelines on the ascending base flanges through first pipeline fixing supports; below ascending bases, fixing the leading-out pipelines on oil pipe flanges of the radiators through second pipeline fixing supports; b), horizontally leading the leading-out pipelines to a transformer crawling ladder after leading the leading-out pipelines to the gaps between the transformer body and the radiators, using third pipeline fixing supports to realize quarter turn to make the direction straight down, and finally connecting the leading-out pipelines to an end screen earth plate on the rear side of the crawling ladder. By the method and the supports, the leading-out pipelines are firm, reliable, reasonable and orderly in fixation, and do not pose any threat to operation of other auxiliary equipment.
Description
technical field [0001] The invention relates to the technical field of transformers, in particular to a method and a device for fixing a lead-out pipeline at the end screen of a transformer bushing. Background technique [0002] The transformer is one of the most important equipment in the power system, and the bottom guide of the end screen of the transformer bushing is a necessary technical means to realize the live detection of the transformer. The structure of the transformer is complex, so there are a series of auxiliary devices outside the transformer body to ensure its safe operation. These auxiliary devices include instrument monitoring, oil circulation pipelines, heat dissipation systems, etc. When the end screen of the transformer bushing is led down, it is necessary to lay new lead-out lines and lead-out pipes from the top of the transformer. operation poses a threat. [0003] At present, there is no realization scheme for the fixing method of the lead-out pipel...
Claims
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IPC IPC(8): H01F27/29H01F27/36H01F27/30
Inventor 李永宁张勇付兆远王万宝李琮许志元杨琦欣周迎新王文祥
Owner STATE GRID CORP OF CHINA