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Transformer accessory converting all-in-one machine and using method thereof

A technology of a transformer and an all-in-one machine, which is applied in the field of replacing the all-in-one machine with transformer accessories, can solve the problems of time-consuming, large manpower and material resources, and achieve the effects of simple use method, saving manpower and material resources, and avoiding oil leakage and oil discharge.

Inactive Publication Date: 2013-08-28
STATE GRID CORP OF CHINA +1
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  • Summary
  • Abstract
  • Description
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  • Application Information

AI Technical Summary

Problems solved by technology

[0002] The traditional method of replacing the accessories of the transformer body is to drain the oil. It is necessary to put the oil level of the transformer below the location of the replacement accessories. Oil storage tanks, cranes, high-voltage test instruments and other equipment take a lot of time, manpower, and material resources, which is almost equivalent to the workload of reinstalling a transformer

Method used

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  • Transformer accessory converting all-in-one machine and using method thereof
  • Transformer accessory converting all-in-one machine and using method thereof

Examples

Experimental program
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Effect test

Embodiment 1

[0029] Example 1 Replacement of the butterfly valve at the lower connecting pipe between the main transformer body and the cooler

[0030] First, measure the pressure value of the oil level here through the pressure sensor installed in the horizontal position of the butterfly valve. By measuring the depth of the oil level here is h=4 meters, and through the pressure calculation formula Calculate and verify the correctness of the pressure value measured by the pressure sensor. Then start the vacuum pump to evacuate the body. The pressure value of the vacuum pump is F=PS, where S is the cross-sectional area of ​​the connecting pipe (the connecting pipe of the respirator, through which the air pump is vacuumed), and P is the value measured by the pressure sensor. When the pressure gauge of the vacuum pump is stable, the pressure at the attachment to be replaced is balanced inside and outside, and the attachment can be replaced without draining oil.

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Abstract

The invention relates to a transformer accessory converting all-in-one machine and a using method of the transformer accessory converting all-in-one machine. The transformer accessory converting all-in-one machine comprises a transformer body provided with an accessory, an expansion tank, a respirator, a vacuum pump and a pressure inductor. The expansion tank, the respirator and the transformer body are connected through a three-way isolating valve. The vacuum pump is connected with the respirator through a pipeline. The pressure inductor is arranged on the transformer body. In the process of replacement, the accessory can be replaced only if the pressure value of the vacuum pump and the pressure value of the pressure inductor are identical, so that a large amount of labor and material resources can be saved. The transformer accessory converting all-in-one machine is simple in manufacturing and using method and suitable for popularization.

Description

technical field [0001] The invention relates to an all-in-one machine for replacing transformer accessories and a method for making and using the same. Background technique [0002] The traditional method of replacing the accessories of the transformer body is to drain the oil. It is necessary to put the oil level of the transformer below the location of the replacement accessories. Equipment such as oil storage tanks, cranes, and high-voltage test instruments takes a lot of time, manpower, and material resources, which is almost equivalent to the workload of reinstalling a transformer. Contents of the invention [0003] The object of the present invention is an all-in-one machine for replacing transformer accessories and its production and use method. The all-in-one machine has a simple structure, is convenient and practical, can avoid oil leakage and oil discharge, and can save a lot of manpower and material resources. The all-in-one machine has a simple production metho...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H02B3/00H01F27/14
Inventor 孙鹏刘海锋杨立军祖树涛邸世辉陈舒捷冯鹏森
Owner STATE GRID CORP OF CHINA
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