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Insulation protection device for transformers in non-oil-filled power systems

A technology for power system and insulation protection, applied in the manufacture of inductors/transformers/magnets, transformer/inductor shells, circuits, etc. problems, to achieve the effect of improving temperature and benefiting work efficiency

Inactive Publication Date: 2017-06-30
NANZHAO COUNTY ELECTRIC POWER BUREAU
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

But this method has disadvantages. If the transformer is not well sealed, a large amount of moisture from the outside will continuously enter the body of the transformer, which will not only fail to maintain the insulation of the body, but will be harmful to the insulation of the main transformer.
[0004] Moreover, in the prior art, the transformer is generally installed outdoors, and the environment has a greater impact. In summer, it is necessary to ensure the internal sealing state of the transformer, and it is also necessary for the staff to carry out maintenance inside. The high temperature is a great challenge to the health of the staff. There are many staff members who fainted due to heatstroke during the maintenance operation, which is not conducive to the smooth progress of the maintenance work and the health of the staff

Method used

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  • Insulation protection device for transformers in non-oil-filled power systems
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  • Insulation protection device for transformers in non-oil-filled power systems

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Experimental program
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Effect test

Embodiment 1

[0036] Such as figure 1 As shown, the present invention provides an insulation protection device for transformers in non-oil-filled power systems, including a pit foundation and a transformer foundation 1, the transformer 2 is arranged on the foundation 1, and the transformer is arranged on the foundation 1 A sealing plate 4, a sealing cover body 3 is movable on the sealing plate 4, a gas injection port 6 is arranged in the sealing cover body 3, and the gas injection port 6 is connected with an air drying mechanism 7. On the sealing cover body 3 The inlet and outlet 8 and the insulating oil outlet are set.

[0037] The insulating oil outlet includes an oil outlet hose 10 , and a sealing valve 9 is arranged on the oil outlet hose 10 .

[0038] The air drying mechanism 7 includes an air dryer.

[0039] The raw materials included in the special insulating material and their parts by weight are: epoxy resin, polyvinyl chloride, polypropylene resin, phenolic resin, nylon fiber, c...

Embodiment 2

[0046] Such as figure 2 with image 3 Said: The present invention provides an insulation protection device for a transformer in an unfilled power system, including a pit foundation and a transformer foundation 1, the transformer 2 is arranged on the foundation 1, and the foundation 1 is set corresponding to the transformer A sealing plate 4, a sealing cover body 3 is movable on the sealing plate 4, a gas injection port 6 is arranged in the sealing cover body 3, and the gas injection port 6 is connected with an air drying mechanism 7. On the sealing cover body 3 The inlet and outlet 8 and the insulating oil outlet are set.

[0047] The edge of the sealing plate 4 is connected to the sealing cover 3 through a sealing mechanism 5, and the sealing mechanism 5 adopts a liquid metal seal.

[0048] The sealing mechanism 5 includes a groove body 11 corresponding to the sealing cover body 3. The lower end of the sealing cover body 3 is wave-shaped, and a liquid metal injection hole ...

Embodiment 3

[0058] Such as figure 2 , Figure 4 As shown, the present invention provides an insulation protection device for transformers in non-oil-filled power systems, including a pit foundation and a transformer foundation 1, the transformer 2 is arranged on the foundation 1, and the transformer is arranged on the foundation 1 A sealing plate 4, a sealing cover body 3 is movable on the sealing plate 4, a gas injection port 6 is arranged in the sealing cover body 3, and the gas injection port 6 is connected with an air drying mechanism 7. On the sealing cover body 3 The inlet and outlet 8 and the insulating oil outlet are set.

[0059] A temperature and humidity sensor 18 is set inside the sealed cover 3 , a pressure gauge 21 is set on the sealed cover 3 , the temperature and humidity sensor 18 is connected to a controller 19 , and a display 20 is connected to the controller 19 .

[0060] The inside of the sealing cover 3 is provided with a temperature control pipeline 22, one end o...

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Abstract

The invention discloses an insulation protection device for a transformer in a non-oil-filled power system. A sealing cover body is movable on the upper side, and a gas injection port is arranged in the sealing cover body, and the gas injection port is connected with an air drying mechanism, and an inlet and outlet and an insulating oil outlet are arranged on the sealing cover body. After the transformer insulating oil is removed, the transformer can be insulated and protected to prevent relatively humid air from damaging the inside of the transformer. The operation is simple and convenient, and the sealing effect is good.

Description

technical field [0001] The invention relates to the technical field of substation infrastructure construction, in particular to an insulation protection device for a non-oil-filled power system transformer. Background technique [0002] When the transformer is in normal operation, it is filled with qualified transformer oil, which ensures that the iron core and coil inside the body are not in contact with the air, and prevents the insulation of the body from being damp. However, the main transformer must release all the transformer oil during maintenance. In order to ensure good insulation of the body, the exposure time of the body insulation of the main transformer in the air is stipulated. When the humidity of the air is 65%-75%, it shall not exceed 12 hours, and the humidity of the air shall not exceed 16 When the humidity of the air is greater than 75%, the transformer cannot be repaired, especially in rainy days, the transformer cannot be repaired. In the rainy weather...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H01F41/00H01F27/02F16J15/00
Inventor 杨秋月惠浩申晨温志中王晓霍培
Owner NANZHAO COUNTY ELECTRIC POWER BUREAU
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