Solid insulation ring main unit

A technology of solid insulation and ring network cabinets, which is applied in high-voltage/high-current switches, switchgear settings, high-voltage air circuit breakers, etc., and can solve problems such as prone to misoperation

Active Publication Date: 2013-10-23
STATE GRID CORP OF CHINA +2
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] The purpose of the present invention is to provide a solid insulated ring network cabinet to solve the technical problem in the prior art that the direct drive device is used to drive the electric contact to move to different stations in a straight line, which leads to easy misoperation

Method used

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  • Solid insulation ring main unit
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Examples

Experimental program
Comparison scheme
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Embodiment Construction

[0019] Such as figure 1 As shown, an embodiment of a solid insulated ring network cabinet, the solid insulated switch in this embodiment includes a high voltage switch unit, and the high voltage switch unit includes an isolation grounding switch device and a vacuum interrupter 3.1.

[0020] The isolating grounding switchgear includes an insulating cavity 100 made of solid insulating material, where the solid insulating material is epoxy resin. The insulating cavity 100 includes an upper cavity 1 with an open lower end and is fixedly connected with the upper cavity. The lower sealing plate 2 forming a closed cavity is provided with a sealing structure between the lower sealing plate 2 and the upper cavity 1 to isolate the inner cavity of the insulating cavity from the external environment.

[0021] The upper end of the upper cavity 1 of the insulating cavity 100 is respectively provided with a vacuum interrupter socket 1.1 for assembling a vacuum interrupter and a vacuum switch...

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PUM

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Abstract

The invention discloses a solid insulation ring main unit, comprising a high-voltage switch unit; the high-voltage switch unit comprises a vacuum arc-extinguishing chamber and an isolation grounding switch device comprising an insulation cavity body; a line outlet end, a grounding end and a line inlet end electrically connected with a conductive rod are arranged on the insulation cavity body; a vacuum switch tube for grounding is fixedly arranged inside or outside the insulation cavity body; the static contact of the vacuum switch tube for grounding is electrically connected with the grounding end while the movable contact is provided with a grounding wiring part; the movable contact of the vacuum switch tube for grounding is in transmission connection with a grounding operative mechanism; an isolation disconnecting link is arranged in the insulation cavity body; one end of the isolation disconnecting link is a hinging end hinged to the line outlet end while the other end is a contact end; and a driving mechanism is connected onto the isolation disconnecting link in a transmission way. The isolation grounding switch is positioned in different work conditions by controlling the swinging of the isolation disconnecting link and the connecting / disconnecting states of the static and movable contacts in the vacuum switch tube.

Description

technical field [0001] The invention relates to a solid insulating ring network cabinet. Background technique [0002] The insulation methods of the isolation switchgear on the high-voltage switch unit in the existing ring network cabinet mainly include air insulation, gas insulation and solid insulation. Among them, the solid insulation switch is a switchgear that uses solid insulation materials as the main insulation medium. The solid insulated switch has the characteristics of small size, high dielectric strength, and environmental friendliness. It will be the main research direction of isolating switchgear in the future. [0003] A solid insulated switch is disclosed in the Chinese Invention Patent Application Publication No. CN102110956A, which includes an insulating case made of solid insulating material, the insulating case is provided with a bus terminal, and the inner cavity of the insulating case A vacuum interrupter is installed in the center, and the static cond...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H02B13/00H01H31/00H01H33/66
Inventor 吴小钊王廷华汤清双李鹏赵洪柏郑晓果师军伟张文凯
Owner STATE GRID CORP OF CHINA
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