Solid insulated switchgear, plugs and installation methods for plugs
A technology of solid insulation switch and installation method, which is applied in switchgear, switchgear setting, electrical components, etc., can solve the problems such as the inability of air to effectively discharge insulation test and failure, and achieve the effect of optimizing the electric field structure of the product
Active Publication Date: 2019-07-05
PINGGAO GRP +2
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- Abstract
- Description
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AI Technical Summary
Problems solved by technology
[0005] The purpose of the present invention is to provide a plug to solve the problem in the prior art that the air between the two sub-packages of the main circuit cannot be effectively discharged, resulting in the failure of the insulation test; the purpose is also to provide a plug using the plug Solid insulated switchgear; also aimed at providing a method for installing plugs
Method used
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specific Embodiment 7
[0058] The seventh specific embodiment of the solid insulated switchgear of the present invention: the installation method of the plug in this embodiment is different from the above specific embodiment in that the insulator is directly inserted into the supporting cast part by pressing. The liquid guide grooves in the embodiment are arranged in a spiral shape along the circumference of the insulator.
specific Embodiment 8
[0059] The eighth specific embodiment of the solid insulated switchgear of the present invention: the installation method of the plug in this embodiment is different from the above specific embodiment in that the insulating liquid is a high-temperature vulcanized silicone rubber liquid.
specific Embodiment 9
[0060] Ninth specific embodiment of the solid insulated switchgear of the present invention: the installation method of the plug in this embodiment is different from the above specific embodiment in that the elastic gasket is epoxy resin.
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The invention relates to a solid insulated switchgear, a plug and an installation method thereof. The plug includes an insulator and a sealing element. A sealing insert is embedded onto the insulator. Liquid guide slots used for draining insulating liquid are arranged on the outer periphery of the insulator. The insulator is provided with liquid guide holes communicated with the liquid guide slots. The sealing insert is provided with a sealing element installation slot communicated with the liquid guide holes and used for discharging the insulating liquid in the liquid guide holes. After the insulating liquid is discharged, the sealing element is assembled in the sealing element installation slot in a sealing manner to seal the liquid guide holes. By discharging liquid through the liquid guide slots and the liquid guide holes, excess bubbles between two main circuit sub-packaging members can be discharged. Therefore, the electric field structure of products is optimized.
Description
technical field [0001] The invention relates to a solid insulation switchgear, a plug and a method for installing the plug. Background technique [0002] The insulation performance and volume of medium-voltage switchgear are two main factors restricting the development of medium-voltage switchgear. Around the above two factors, the development of medium-voltage switchgear technology has gone through the stages of external air insulation-composite insulation-gas insulation-solid insulation . In the existing switchgear products, most of the insulation schemes adopt air insulation and SF6 gas insulation. The two objects that need to be insulated from each other are insulated with air medium. According to the breakdown distance of air under the high voltage of the transmission network, the net distance between phases and relative ground should not be less than 125mm, which will lead to a relatively large volume of the switchgear and occupy The space is larger; and SF6 gas is u...
Claims
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IPC IPC(8): H02B13/00H02B3/00
CPCH02B3/00H02B13/00
Inventor 张洪铁卢健王海燕费翔孙琼朱志豪耿晓璐
Owner PINGGAO GRP