Preparation method of three-layer gradient GIS/GIL supporting insulator

A technology for supporting insulators and insulators. It is used in insulators, auxiliary operations of additional layers, 3D object support structures, etc., which can solve the problems of poor controllability of lamination and centrifugal methods, long processing time of insulators, and limited molding size.
CN113284684AActive Publication Date: 2021-08-20XI AN JIAOTONG UNIV
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Patent Information

Authority / Receiving Office
CN · China
Current Assignee / Owner
XI AN JIAOTONG UNIV
Publication Date
2021-08-20

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Abstract

The invention discloses a preparation method of a three-layer gradient GIS / GIL supporting insulator, which aims at reducing the electric field intensity of an insulator along a surface or a local region as an optimization target, and solves the optimal spatial distribution of a dielectric constant in the supporting insulator by using a variable density algorithm. According to the optimization result, the dielectric constant change area is divided into a dielectric constant transition area and a high dielectric area, the combination contour of the dielectric constant transition area is extracted, and then a hollow dielectric constant transition area with a support and a resin sprue gate is generated through photocuring 3D printing; a thermocurable high-dielectric composite material is prepared by adopting a high-dielectric filler / polymer blending mode, and then the high-dielectric composite material is poured into the dielectric constant transition area and integrally put into a metal mold for fixing; and a thermocurable high-dielectric composite material is prepared in a low-dielectric filler / polymer blending mode, then the thermocurable high-dielectric composite material is poured into a metal mold, and the three-layer gradient GIS / GIL supporting insulator can be obtained after curing is completed in vacuum.
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Description

technical field

[0001] The invention belongs to the technical field of high-voltage power equipment manufacturing, and in particular relates to a preparation method of a three-layer gradient GIS / GIL support insulator. Background technique

[0002] Gas Insulated Switchgear (GIS) is widely used in EHV and UHV substations because of its small footprint and stable operating environment. Gas Insulated Transmission Line (GIL), as a new type of advanced transmission method, has the advantages of large transmission capacity, small transmission loss, and high safety. It is often used as an alternative to overhead lines and is used in special transmission environments. .

[0003] In GIS / GIL power equipment, the supporting insulator plays the role of supporting the metal guide rod, isolating the potential, and sealing the gas chamber. However, when its structural design is unreasonable or there are defects such as bubbles and metal particles on the surface, the excellent insulation p...

Claims

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