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Seal pole for PT cabinet

A technology of solid-sealed poles and poles, which is applied in the direction of high-voltage air circuit breakers, electrical components, electric switches, etc., can solve the problems of increased electric shock, harsh environment, etc., so as to improve the safety of electricity use, improve the insulation performance and good extinction The effect of arc performance

Active Publication Date: 2016-01-20
ZHUHAI XJ ELECTRIC
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AI Technical Summary

Problems solved by technology

The solid-sealed pole has good insulation performance and high reliability and is widely used. However, when the solid-sealed pole is working normally, it is impossible to avoid surface electrification and the surface cannot be touched, which increases the risk of electric shock. At present, most isolation switches of PT cabinets use SF6 gas medium, the impact of SF6 single molecule on the greenhouse effect is 22,000 times that of CO2 molecule, which has a very bad impact on the environment

Method used

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  • Seal pole for PT cabinet
  • Seal pole for PT cabinet
  • Seal pole for PT cabinet

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Embodiment Construction

[0019] The present invention will be further explained below in conjunction with the drawings and preferred embodiments of the present invention:

[0020] Reference Figure 1 to Figure 4 , A solid-sealed pole of a PT cabinet, comprising three independent A, B, and C three-phase pole bodies, the pole body is solidly sealed with a vacuum interrupter 1, and one side of the vacuum interrupter 1 A copper busbar-2 is solidly sealed, and a horn-shaped cavity is provided on one side of the copper busbar-2. The copper busbar-2 is electrically connected to the vacuum interrupter 1, and the horn-shaped cavity is used to wrap the PT inlet The gap between the wire end and the copper bus 1-2 forms an equal voltage space and improves the insulation performance. This cavity and the surrounding material of the solid-sealed pole form a deep horn-shaped cavity for connecting the PT inlet. The vacuum interrupter 1 and the copper bus bar -2 are independently encapsulated in two cylinders with a cav...

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Abstract

The invention discloses a seal pole for a PT cabinet. The seal pole comprises three separate three-phase pole bodies of A, B and C. The pole bodies seal a vacuum interrupter. One side of the vacuum interrupter is sealed with a first copper busbar. One side of the first copper busbar is provided with a horn-shaped cavity. The first copper busbar is connected electrically with the vacuum interrupter. The product ensures excellent arc extinguishing performance, protects conductive parts from external impacts, can also reduce the influence on the environment, improves the insulation performance and the reliability of a switch, and improves the electrical safety of users.

Description

Technical field [0001] The invention relates to the field of power switches, in particular to a solid-sealed pole of a PT cabinet. Background technique [0002] The solid-sealed pole is to cure the vacuum interrupter and related conductive parts with epoxy resin through the APG process into an integrated pole. The solid-sealed pole has good insulation performance and high reliability, and is widely used. However, when the solid-sealed pole is working normally, it cannot be avoided that the surface is charged and the surface cannot be touched, which increases the risk of electric shock. At present, most of the isolation switches of the PT cabinet are used SF6 gas medium, the influence of SF6 single molecules on the greenhouse effect is 22,000 times that of CO2 molecules, which has a very bad impact on the environment. Summary of the invention [0003] In order to overcome the above-mentioned shortcomings of the existing equipment, the present invention provides a PT cabinet that n...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H01H33/66
CPCH01H33/6606
Inventor 黄楷涛周斌刘明清
Owner ZHUHAI XJ ELECTRIC
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