Fixed-sealing pole column for gas charging cabinet and manufacturing method thereof

A technology of solid-sealing poles and manufacturing methods, applied in electrical components, high-voltage air circuit breakers, electrical switches, etc., can solve the problems of partial discharge and withstand voltage flashover, uneven distribution of electric field, unfavorable product heat dissipation, etc. Insulation level, objective economic benefit, effect of reducing interphase distance requirements

Pending Publication Date: 2018-12-18
麦克奥迪(厦门)智能电气有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0008] At present, the conductor and vacuum interrupter and other related components in the solid-sealed pole are integrally cast in the insulating material, which is not conducive to the heat dissipation of the product, and the discharge problem caused by the uneven distribution of the electric field between the phases and the ground in the gas-filled cabinet
At the same time, the uneven distribution of the electric field at the three junctions between the outlet end of the pole and the insulating material and insulating gas may easily lead to high local field strength, partial discharge and withstand voltage flashover.

Method used

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  • Fixed-sealing pole column for gas charging cabinet and manufacturing method thereof
  • Fixed-sealing pole column for gas charging cabinet and manufacturing method thereof
  • Fixed-sealing pole column for gas charging cabinet and manufacturing method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0039] Such as figure 1 , figure 2 , image 3 , Figure 4 As shown, the solid-sealed pole for the inflatable cabinet includes an insulating shell 1, an upper outgoing line terminal 2 arranged at the upper end of the insulating shell 1, and a lower outgoing line end 3 arranged at the lower end of the insulating shell 1, and the inner cavity of the insulating shell 1 is set There is a vacuum interrupter 4, and the upper outlet end 2 is a coaxial cylindrical structure.

[0040] There is no insulating partition on the top of the upper outlet terminal 2 (not shown in the figure).

[0041] The lower outlet end 3 is a coaxial cylindrical structure capable of slidable conductive connection. The lower outlet end 3 is provided with a sliding contact 9 , and the upper end of the lower outlet end 3 extends into the interior of the insulating housing 1 .

[0042] The insulating shell 1 adopts epoxy resin material layer, of course, it should be pointed out that the insulating shell 1 c...

Embodiment 2

[0046] Such as figure 1 , figure 2 , image 3 , Figure 4 As shown, the solid-sealed pole for the inflatable cabinet includes an insulating shell 1, an upper outgoing line terminal 2 arranged at the upper end of the insulating shell 1, and a lower outgoing line end 3 arranged at the lower end of the insulating shell 1, and the inner cavity of the insulating shell 1 is set There is a vacuum interrupter 4, and the upper outlet end 2 is a coaxial cylindrical structure.

[0047] There is no insulating partition on the top of the upper outlet terminal 2 (not shown in the figure).

[0048]The lower outlet end 3 is a coaxial cylindrical structure capable of slidable conductive connection. The lower outlet end 3 is provided with a sliding contact 9 , and the upper end of the lower outlet end 3 extends into the interior of the insulating housing 1 .

[0049] The insulating shell 1 adopts epoxy resin material layer, of course, it should be pointed out that the insulating shell 1 ca...

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Abstract

The invention discloses a fixing sealing pole used for a gas charging cabinet, which relates to a medium-high voltage switch device, and is used for solving the problems of temperature rise and insulation of the product under the requirement of miniaturization of a product by a user, especially partial discharge under a rated voltage, which is caused by a plurality of fixing sealing pole with a large amount of overall material at present. The insulating shell comprises an insulating shell, an upper outlet end arranged at the upper end of the insulating shell, and a lower outlet end arranged atthe lower end of the insulating shell. The inner cavity of the insulating shell is provided with a vacuum arc extinguishing chamber, and the upper outlet end is of a coaxial cylindrical structure. Byoptimizing the design scheme, the electric field distribution in the switchgear cabinet is more uniform, so as to improve the withstand voltage level to the ground and between the phases, reduce thesize of the product, enhance the strength of the product, and improve the heat dissipation performance.

Description

technical field [0001] The invention relates to medium and high voltage switchgear, in particular to a solid-sealed pole for an inflatable cabinet and a manufacturing method thereof. Background technique [0002] The existing solid-sealed pole generally consists of a vacuum interrupter, an upper outlet terminal, a lower outlet terminal, a flexible connection, a tie rod, and an epoxy resin shell. At present, most of the solid-sealed poles are generally larger and have more materials. In view of the user's requirements for product miniaturization, there are certain problems in the temperature rise and insulation of the product, especially the problem of partial discharge under the rated voltage. . [0003] Document CN 201510877190.X discloses an inflatable cabinet and its solid-sealed pole. The solid-sealed pole has a vacuum interrupter, an upper outgoing line terminal, and a lower outgoing line busbar, and is integrally sealed with epoxy resin through the APG process. One. ...

Claims

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Application Information

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IPC IPC(8): H01H33/66H01H33/662H01H11/00
CPCH01H11/00H01H33/6606H01H33/66207
Inventor王振良张建宏陈榆秀张东斌韦俊杰陈雪如林熹涛
Owner麦克奥迪(厦门)智能电气有限公司