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An Atmospheric Sealed Air Insulated Switchgear

A technology of sealing air and insulating switches, which is applied in the direction of switchgear, switchgear setting, panel/switch station circuit device, etc. It can solve the problems of high heat generation, affecting normal work, and working environment, etc., and achieves good electrical conductivity and Thermal expansion and contraction performance, improved cooling effect, and improved heat dissipation efficiency

Active Publication Date: 2021-12-28
江苏金通源实业有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] When the above switchgear is in operation, due to the large heat generated by the electrical components in the cabinet, the increase in temperature will cause the mechanical and electrical properties of the electrical components to decline, thereby affecting their normal work, and even causing operational accidents, causing serious losses. However, due to the switchgear The cabinet adopts an insulating and sealed structure, it is difficult to effectively dissipate heat through mechanical air supply, and the mechanical air supply method has relatively large noise, which affects the working environment, and because there are many electrical components in the switch cabinet, the traditional water cooling method is adopted It is easy to cause the risk of short circuit, so the existing normal pressure air-insulated switchgear generally has the problem of inconvenient heat dissipation

Method used

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  • An Atmospheric Sealed Air Insulated Switchgear
  • An Atmospheric Sealed Air Insulated Switchgear
  • An Atmospheric Sealed Air Insulated Switchgear

Examples

Experimental program
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Effect test

Embodiment 1

[0027] like Figure 1-7 As shown, a normal-pressure air-insulated switchgear includes a cabinet body 1, a number of arc-shaped grooves 2 are equidistantly arranged on the side wall of the cabinet body 1, and a plurality of arc-shaped grooves 2 are provided for cooling the cabinet body 1. The heat dissipation mechanism, the heat dissipation mechanism includes a heat dissipation plate 3 arranged in the arc groove 2, the outer wall of the heat dissipation plate 3 is coated with a heat conducting coating 4, the heat dissipation plate 3 is coaxial with the arc groove 2, and the two ends of the arc groove 2 A side plate 5 is fixedly arranged on the side wall, and a rotating shaft 6 is fixed through the axis of the cooling disc 3, and the rotating shaft 6 is rotatably connected to the side plate 5, the cooling disc 3 can rotate in the arc groove 2, and the cooling disc 3 During the rotation process, its peripheral side wall contacts and slides with the surface of the arc groove 2, an...

Embodiment 2

[0040] like figure 1 and 5 As shown, the difference between this embodiment and Embodiment 1 is that a refrigeration pipe 27 is installed in the insulating oil tank 20, and two symmetrical conductive plates 28 are embedded on the inner wall of one of the liquid cylinders 9, and the two conductive plates 28 are opposite and not in contact with each other. One of the conductive plates 28 is electrically connected to the cooling tube 27, and the other conductive plate 28 is connected to the external power supply. The circuit of the tube 27 is conducted. In this embodiment, mercury is used as the thermal expansion and contraction medium, which not only expands when heated, but also has good electrical conductivity.

[0041] In this embodiment, when the temperature of the power distribution cabinet is high, the cooling plate 3 rotates, and the liquid cylinder 9 intermittently rotates into the arc-shaped groove 2, and the heat-expanding and contracting-contracting medium expands in...

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Abstract

The invention belongs to the technical field of electric power system equipment, and in particular relates to a normal-pressure sealed air-insulated switchgear, which includes a cabinet body, and a plurality of arc-shaped slots are equidistantly arranged on the side wall of the cabinet body, and each of the arc-shaped slots is A heat dissipation mechanism for cooling the cabinet body is provided, the heat dissipation mechanism includes a heat dissipation plate arranged in the arc-shaped groove, the outer wall of the heat dissipation plate is coated with a heat-conducting coating, and the heat dissipation plate and the arc-shaped groove share a shaft, the side walls at both ends of the arc-shaped groove are fixedly provided with side plates, and the shaft center of the heat dissipation disc is fixed with a rotating shaft. The present invention can rotate the cooling plate on the surface of the cabinet body through the shifting of the center of gravity, quickly dissipate the heat of the cabinet body into the air, and use the rotation of the cooling plate as the driving force to promote the flow of insulating oil in the circulating oil pipe, which is the best for the cabinet body. The electrical components in the body provide good cooling, no motor drive is required, energy saving and environmental protection, and no noise is generated during operation, which is conducive to improving the working environment.

Description

technical field [0001] The invention belongs to the technical field of power system equipment, and in particular relates to a normal-pressure sealed air-insulated switchgear. Background technique [0002] Switchgear is an important electrical equipment in the power generation and distribution system of power plants and substations. Among them, the atmospheric pressure sealed air-insulated switchgear has an air-insulated structure with self-healing ability, which eliminates the risk of leakage of sulfur hexafluoride (SF6) inflated belt pressure. , The insulated and sealed box can isolate dust, pollution and humid air in the operating environment, ensuring that the product insulation system is stable and effective within the life cycle. [0003] When the above switchgear is in operation, due to the large heat generated by the electrical components in the cabinet, the increase in temperature will cause the mechanical and electrical properties of the electrical components to dec...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H02B1/56H02B1/32H02B1/28B08B1/04H02B1/24H02B13/045
CPCH02B1/565H02B1/32H02B1/28B08B1/002B08B1/04H02B1/24H02B13/045H02B13/0356
Inventor 严铖
Owner 江苏金通源实业有限公司