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Motion insulator, preparation method thereof and switch comprising motion insulator

An insulator and motion technology, applied in the field of electrical devices, can solve the problems of huge electric power and impact force of the arm, partial discharge failure, etc., and achieve the effect of good toughness, ensuring partial discharge requirements, and high strength

Pending Publication Date: 2022-06-03
SOUTHERN POWER GRID PEAK LOAD & FREQUENCY REGULATION GENERATING CO LTD +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] The purpose of the present invention is to provide a moving insulator and its preparation method, and a switch containing it, which solves the problem of huge electromotive force and impact force and partial discharge unqualified generated during the rotation of the crank arm

Method used

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  • Motion insulator, preparation method thereof and switch comprising motion insulator
  • Motion insulator, preparation method thereof and switch comprising motion insulator
  • Motion insulator, preparation method thereof and switch comprising motion insulator

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Embodiment Construction

[0039] The present invention will be further described in detail below in conjunction with specific embodiments, which are to explain rather than limit the present invention.

[0040] figure 1 It is a large-capacity switch, including a support 1, a rotating shaft 2, a moving insulator 3, a U-shaped support 4, a connecting plate 5, a moving contact 6, a static contact and a conductor 7, a moving side contact and a conductor 8, and a rotating shaft 2 , the moving insulator 3 and the U-shaped support 4 are assembled into a turning arm 11, and the rotating shaft 2 is installed on the support 1; They are connected by the second pin 12; the high voltage side of the moving insulator 3 is connected to the U-shaped support 4, and the ground potential side of the moving insulator 3 is connected to the rotating shaft 2; a first insulating support 9 is provided on the side of the moving contact 6 , a second insulating support 10 is provided on one side of the static contact, and the firs...

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Abstract

The invention belongs to the technical field of electric devices, and discloses a preparation method of a motion insulator, which comprises the following steps: preparing an insert, and processing a runner on the insert; immersing glass cloth in epoxy resin glue to obtain epoxy glass cloth, and winding the epoxy glass cloth into a cylindrical solid rod to form an insulator main body; corresponding pits are processed at the two ends of the insulator main body; in a sealed vacuum environment, the upper insert is installed on the high voltage side of the insulator main body, and the lower insert is installed on the ground potential side of the insulator main body. Then glue is filled into gaps between the upper insert and the insulator main body and between the lower insert and the insulator main body through the flow channel to obtain a connecting body; and processing the outer circular surface of the connecting body into an umbrella-shaped structure to obtain the motion insulator. The vacuum impregnated glass cloth is wound and then processed into an umbrella shape, so that the requirement on the creepage distance of the insulating part is met; the runner is arranged on the insert to ensure that no air gap is formed in the gap between the insert and the insulator main body during glue injection, so that the partial discharge requirement of the insulator is ensured.

Description

technical field [0001] The invention belongs to the technical field of electrical devices, and particularly relates to a moving insulator, a preparation method thereof, and a switch comprising the same. Background technique [0002] In the design process of the start switch, the insulating part of the moving arm should not only realize the electrical isolation of the main circuit and the ground potential, but also ensure the strength of the moving insulating part. It is usually cast with epoxy resin material, which is brittle and cannot meet the In the process of rotating movement, the crank arm is required to withstand large impact force, and at the same time, its ability to withstand large electric power is limited; Air gaps are generated, and partial discharge failure occurs during the electrical performance test of the insulating parts. SUMMARY OF THE INVENTION [0003] The purpose of the present invention is to provide a moving insulator, a preparation method thereof...

Claims

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Application Information

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IPC IPC(8): H01B19/02H01B19/00H01B17/38H01H9/00
CPCH01B19/02H01B19/00H01B17/38H01H9/00Y02E40/60
Inventor 曾广移吕军玲黄小凤马冲贺儒飞常治国徐浩黄炜
Owner SOUTHERN POWER GRID PEAK LOAD & FREQUENCY REGULATION GENERATING CO LTD
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