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Transformer oil static pressure device and transformer system

A technology for transformer oil and transformers, applied in the field of transformers, can solve the problems of high cost, not allowing the design of hanging tanks, affecting the normal production of transformers, etc., to meet the requirements of oil static pressure, and to achieve the effects of convenient and fast detection

Pending Publication Date: 2022-01-14
TBEA INTELLIGENT ELECTRIC CO LTD +3
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, after the hanging tank is installed in the workshop, the supporting fire-fighting facilities are extremely strict, and the cost is extremely high
In addition, according to the requirements of national fire safety regulations, not only the design of suspended tanks is not allowed in the transformer production workshop, but also any temporary oil tanks are not allowed to be placed. It is a device to replace the hanging tank to realize the static pressure of the transformer oil, otherwise it will seriously affect the normal production of the transformer

Method used

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  • Transformer oil static pressure device and transformer system
  • Transformer oil static pressure device and transformer system

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0043] like figure 1 As shown, this embodiment discloses a transformer oil static pressure device, which includes a base 7 and a housing 6 arranged on the base 7 . The casing 6 is provided with an air charging port and a test interface.

[0044] There is an air bag 4 suspended in the housing 6, the inner cavity of the housing is completely isolated from the inside of the air bag, and the inflation port communicates with the interior of the air bag 4. The inflation port is provided with a first valve 3, and the first valve 3 is used to control the opening of the inflation port. close. When the first valve 3 controls the opening of the inflation port, compressed gas can be filled into the airbag 4 through the inflation port. cavity volume.

[0045] The test interface is used to connect with the main body of the transformer, and a second valve 11 is provided at the position of the test interface, and the second valve 11 is used to control the opening and closing of the test in...

Embodiment 2

[0062] like figure 2 As shown, the present embodiment provides a transformer system, including a transformer main body 20, and the transformer oil static pressure device in Embodiment 1, wherein, there is an 80 butterfly valve 16 on the transformer main body, and the test interface in the transformer oil static pressure device is connected to the 80 Butterfly valve 16 communicates. Specifically, the transformer oil static pressure device is connected as a whole with the transformer main body 20 through the L-shaped joint at the end of the pressure-resistant tube.

[0063] The oil static pressure process using the oil static pressure device is as follows:

[0064] 1. Close the main pipe valve 15 connected between the oil conservator 19 of the transformer and the main body 20 of the transformer, install a bottom pressure gauge 18 at the end of the oil filling and draining valve 17, and connect the pressure-resistant pipe 12 of the static pressure device The L-shaped joint 9 a...

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Abstract

The invention discloses a transformer oil static pressure device which comprises a base (7) and a shell (6) arranged on the base, an inflation inlet and a test interface are formed in the shell, an air bag (4) is arranged in the shell, the inflation inlet is communicated with the interior of the air bag and used for inflating compressed gas into the air bag, and the test interface is communicated with the inflation inlet. The shape of the air bag is matched with the shape of an inner cavity of the shell after the air bag is fully inflated, the size of the air bag is larger than or equal to the size of the inner cavity of the shell, a first valve (3) is arranged on the inflation inlet and used for controlling the inflation inlet to be opened and closed, and a second valve (11) is arranged on the test interface and used for controlling the test interface to be opened and closed. Correspondingly, the invention further discloses a transformer system. The device can replace a hanging tank to carry out static pressure leak detection test on the transformer, does not need to be hung, and can realize oil-gas separation.

Description

technical field [0001] The invention specifically belongs to the technical field of transformers, and in particular relates to a transformer oil static pressure device and a transformer system including the device. Background technique [0002] 110kV and above large-capacity transformers need to carry out oil static pressure sealing test according to the requirements of national standards after vacuum oil filling. At the same time, this kind of transformer has high voltage level and complex structure. In order to ensure the qualified test and long-term reliable operation, oil static pressure leak test must be carried out However, for high-voltage transformers, it is not possible to use a certain pressure of gas to directly act on the oil surface of the transformer to suppress, so as to avoid the problem of product integration or partial discharge failure caused by excessive gas and gas content in the oil. [0003] For a long time, the static pressure process of high-voltage ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01M3/26G01L15/00G01L13/00H01F27/40
CPCG01M3/26G01L15/00G01L13/00H01F27/402
Inventor 尹希钦李胜营罗粲王常平张金龙张立坤冯志伟
Owner TBEA INTELLIGENT ELECTRIC CO LTD
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