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Three-phase common box isolating switch and high-voltage switchgear

A technology of isolating switch and three-phase common box, which is applied in the direction of electric switch, air switch parts, high-voltage air circuit breaker, etc., can solve the problem of three-phase opening and closing at different times, achieve long service life, and is conducive to rainproof , The effect of simplifying the transmission link

Active Publication Date: 2022-03-08
PINGGAO GRP +3
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] The purpose of the present invention is to provide a three-phase common tank isolating switch, which can solve the problem of different phases of the three-phase opening and closing of the isolating switch in the prior art; another purpose of the present invention is to provide a three-phase common tank isolating switch High-voltage switchgear with high transmission precision and good stability

Method used

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  • Three-phase common box isolating switch and high-voltage switchgear
  • Three-phase common box isolating switch and high-voltage switchgear
  • Three-phase common box isolating switch and high-voltage switchgear

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Embodiment Construction

[0046] The specific implementation manners of the three-phase common tank isolating switch and the high-voltage switchgear in the present invention will now be described in conjunction with the accompanying drawings.

[0047] An embodiment of the three-phase common box isolating switch in the present invention: figure 1It is a structural schematic diagram of the three-phase common-tank isolating switch in this embodiment. The three-phase common-tank isolating switch includes a housing 10 and a contact mechanism located in the housing 10, and disc insulators are arranged at the openings at both ends of the housing 10. 11, used to form a closed air chamber. The moving contact support conductor 20 and the static contact 30 in the contact mechanism are arranged relative to each other by connecting with the metal insert on the disc insulator 11. There are three moving contact support conductors 20 and three static contacts 30, so as to be connected with the three corresponding to ...

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Abstract

The invention provides a three-phase tank-common isolating switch and a high-voltage switchgear, which can solve the problem in the prior art that the three-phase opening and closing periods of the isolating switch are different. The three-phase common box isolating switch includes a housing and three sets of contact mechanisms; each set of contact mechanisms includes a moving contact, a static contact, and a moving contact supporting conductor, and the moving contact is installed in the moving contact supporting conductor; The moving contact support conductor is also provided with a transmission shaft, the transmission shaft is a gear shaft or a gear is installed on it, and is integrally formed with the follow-up contact or is engaged with a rack mounted on the moving contact; There is a transmission part that realizes the linkage between the two transmission shafts; the transmission shaft corresponding to the three-phase bus bar is integrally formed or equipped with a driven bevel gear, the housing is equipped with a drive shaft, and the drive shaft is integrally formed or equipped with The driving bevel gear meshes with the driven bevel gear; the end of the drive shaft away from the driving bevel gear is located outside the housing.

Description

technical field [0001] The invention relates to the technical field of electrical switches, in particular to a three-phase common-box isolating switch and high-voltage switchgear. Background technique [0002] The isolating switch is an important component of the high-voltage switch system. It is mainly used in circuits with a rated voltage above 1kV. Because of its relatively simple working principle and structure, it has been widely used in high-voltage switching appliances. Due to the large amount of use, it has a great impact on the design, establishment and safe operation of substations and power plants, so the requirements for the reliability of the isolation switch are relatively high. [0003] In the prior art, most of the isolating switches in GIS above 252kV adopt a three-phase sub-box structure, which is similar to the isolating switch disclosed in the patent application document with the application publication number CN108010788A and the application publication ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H01H31/10H01H31/02
CPCH01H31/10H01H31/02H01H31/023H01H31/026
Inventor 李忠富闫亚刚孙鹏王大伟杨卫国刘恒杨涛何东亮朱润东李中旗张娟张自华王伟伟张猛超李俊峰
Owner PINGGAO GRP
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