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A design method for gis insulators with two-dimensional permittivity∧-type gradient distribution

A technology of dielectric constant and gradient distribution, which is applied in the field of modified polymer materials and its preparation, can solve the problems of complex influencing factors, poor technical controllability, difficulty in mass-manufacturing epoxy insulators, etc., and achieve the effect of improving operation stability

Active Publication Date: 2020-06-09
TIANJIN UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, this technology has poor controllability and complex influencing factors, making it difficult to mass-produce epoxy insulators

Method used

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  • A design method for gis insulators with two-dimensional permittivity∧-type gradient distribution

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0033] 1) Put the epoxy resin base, curing agent and alumina into the mixing tank according to the ratio of 100:38:330, and the temperature is 130°C; turn on the motor for stirring, vacuum degassing; push the preheated mold into the pouring tank, Carry out evacuation treatment; pour the mixed epoxy resin mixture into the mold through the pouring equipment.

[0034] 2) Epoxy resin is processed by step curing method. The curing process is divided into two steps: first put the vacuum-treated mold into the oven for primary curing, and then demould; put it into the oven again for secondary curing, and get the ring after cooling. Oxygen resin pot insulators.

[0035] 3) Gradient design is carried out on the epoxy resin pot insulator, that is, its surface is divided into five closely connected rings from the inside to the outside, so that the relative permittivity of the ring increases first and then decreases:

[0036] Place the epoxy resin pot insulator in the magnetron sputtering...

Embodiment 2

[0039] 1) Put the epoxy resin base, curing agent and alumina into the mixing tank according to the ratio of 100:38:330, and the temperature is 130°C; turn on the motor for stirring, vacuum degassing; push the preheated mold into the pouring tank, Carry out evacuation treatment; pour the mixed epoxy resin mixture into the mold through the pouring equipment.

[0040] 2) Epoxy resin is processed by step curing method. The curing process is divided into two steps. First, put the mold after vacuum treatment into the oven for primary curing, and then demould; put it into the oven again for secondary curing, and get the ring after cooling. Oxygen resin pot insulators.

[0041] 3) Gradient design is carried out on the epoxy resin pot insulator, that is, its surface is divided into five closely connected rings from the inside to the outside, so that the relative permittivity of the ring increases first and then decreases:

[0042] Place the epoxy resin pot insulator in the magnetron s...

Embodiment 3

[0045] 1) Put the epoxy resin base, curing agent and alumina into the mixing tank according to the ratio of 100:38:330, the temperature is 130°C, turn on the motor to stir, vacuum degassing; push the preheated mold into the pouring tank, Carry out evacuation treatment; pour the mixed epoxy resin mixture into the mold through the pouring equipment.

[0046] 2) Epoxy resin is processed by step curing method. The curing process is divided into two steps: first put the mold after vacuum treatment into the oven for primary curing, then demould, put it into the oven again for secondary curing, and get the product after cooling Epoxy resin pot insulators.

[0047] 3) Gradient design is carried out on the epoxy resin pot insulator, that is, its surface is divided into five closely connected rings from the inside to the outside, so that the relative permittivity of the ring increases first and then decreases:

[0048] Place the epoxy resin pot insulator in the magnetron sputtering equip...

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Abstract

The invention discloses a GIS insulator design method with two-dimensional dielectric constant inverted-V-shaped type gradient distribution. The method comprises steps that firstly, an epoxy resin material is prepared; secondly, the step solidification method is utilized for treatment, and the solidification process is divided into two steps; and lastly, gradient design of an epoxy resin basin insulator is carried out; (1), the surface of the epoxy resin insulator is divided into five closely-connected rings from the inside to the outside, and relative dielectric constants of the rings are made to increase and then decrease; and (2), the epoxy resin basin insulator is arranged in a magnetron sputtering device, sputtering different times at different locations is carried out according to the inverted-V-shaped type distribution gradient, the time range is 0-60min, and the two-dimensional gradient distribution basin insulators is obtained.

Description

technical field [0001] The invention belongs to the field of modified polymeric materials and their preparation in the manufacture of high-voltage equipment, and relates to a GIS insulator design method with a two-dimensional dielectric constant ∧-type gradient distribution, in particular to a two-dimensional dielectric constant ∧-type gradient distribution The GIS epoxy resin insulator design method. Background technique [0002] In recent years, with the development of high-voltage and large-capacity power transmission in power systems, gas-insulated metal-enclosed switchgear (GIS) and gas-insulated metal-enclosed transmission lines (GIL) have advantages, has been widely concerned and applied. Among them, the pot insulator not only plays the role of mechanical support, but also acts as an electrical insulator, which plays a decisive key role in the safe and stable operation of the entire GIS and GIL. However, even in the demanding 1000kV AC UHV project, epoxy cast insula...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H01B19/00H01B19/02H01B19/04
CPCH01B19/00H01B19/02H01B19/04
Inventor 李进杜伯学王泽华冉昭玉梁虎成
Owner TIANJIN UNIV