Air insulated isolation switch device

A disconnector and gas-insulated technology, which is applied to air switch components, emergency protection devices, switches with movable electrical contacts, etc., can solve the problem that the connecting parts cannot realize direct connection and three-phase linkage, disassembly, complicated installation, etc. Reliable performance, stable operation, and uniform electric field distribution can be achieved without problems such as a large number of parts

Active Publication Date: 2008-12-10
CHINA XD ELECTRIC CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0002] In the traditional gas insulated switchgear (GIS) manufactured by the applicant, among the existing isolating switch, earthing switch and fast earthing switch, the transmission mode generally adopts connecting rod and crank arm transmission, and the connecting part cannot realize direct connection and three-phase Linkage, so there are relatively large number of parts, disassembly, complicated installation, and inconvenient transportation
On the other hand, with the rapid deve

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Example Embodiment

[0021] Example 1

[0022] like figure 1 As shown in the figure, a linear isolation switch device, the isolation switch is linear, adopts gear and rack drive, including 6 Housing 12 of insulating gas, an isolating switch and a grounding switch, the moving end of the isolating switch includes shielding conductor 3, moving end shielding cover 4, moving contact shielding cover 10, moving contact base 5, shielding cover conductor 6, vertical Insulation rod 7, operating shaft 8, pinion 24, isolating switch moving contact 21 and rack 25 and other parts; the static end part includes static contact shield 13, shield conductor 14, static end shield 15, static contact Seat 16 , conductor shield 17 , conductor 18 , contact finger 19 and static contact 20 . The grounding switch static terminal 23 is installed on the shielding cover conductor 6 of the moving end part, and the grounding switch moving terminal 22 is fixed on the lower small support cylinder in the housing 12 .

[0023] The...

Example Embodiment

[0025] Example 2

[0026] like figure 2 Shown, is another linear isolation switch device, the isolation switch moving end and figure 1 It is the same, but another arrangement is adopted for the static end part according to the different wiring methods, that is, the insulating pot 27 of the static end part of the disconnect switch and the insulating pot 1 of the moving end are in the same horizontal direction, and are fixed at both ends of the housing 12, The static contact 20 is fixed on the static contact base 16, and is connected to the shield conductor 14 and fixed to the static end portion. In this arrangement, a shield conductor 34 is added to the shield conductor 14 of the static end. According to the different wiring methods, the shield conductor 34 can be used as the static end part of the quick grounding switch. The moving contact part of the quick earthing switch and the quick earthing switch operating mechanism can be installed on the support cylinder.

Example Embodiment

[0027] Example 3

[0028] like image 3 As shown, it is a right-angle isolating switch device, which adopts gear and screw drive mechanism, including housing 12, isolating switch, grounding switch dynamic and static end parts, isolating switch dynamic end includes operating shaft 8, flanges 30, 31 , 32, insulating rod 7, lead screw 33, conductor 36, moving contact seat 6 and moving contact 21, etc., and the static end part is figure 2 Same. The moving end part of the disconnector is fixed on the casing 12 through the insulating pot 29 , and the operating transmission mechanism is fixed on the casing 12 through the cap flange 32 . The operating mechanism of the isolating switch drives the operating shaft 8 to rotate, the operating shaft 8 is connected to the horizontal insulating pull rod 33 through the left end connecting piece 28, the horizontal insulating pull rod 33 is connected to a nut through the right end connecting piece 28, the nut is threadedly connected with the ...

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PUM

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Abstract

The invention discloses a gas insulation isolating switch device, comprising a shell, an isolating switch and at least a ground switch; the isolating switch comprises a moving end part and a fixed end part; the moving end part comprises a moving end shielding case, a moving contact seat, a moving contact and a moving contact shielding case; the moving end shielding case is provided with a ground switch fixed contact; the fixed end part comprises a fixed end shielding case, a fixed contact seat, a fixed contact and a fixed contact shielding case; the moving contact and the fixed contact are horizontally arranged; the opening direction is coherent with the axes of the shell; the moving end part is connected with an operating transmission mechanism; the device is characterized in that: the operating transmission mechanism is transmission mechanism meshed by gear and rack, or mechanism of lead screw transmission; the rack or lead screw is directly connected with the moving contact conductor or the moving contact. The invention is able to realize the direct connection and three-phase joint, and has flexible arrangement according to different connection modes, and is suitable for GL type isolating switch and GR type isolating switch, and has good commonality and high standardization degree.

Description

technical field [0001] The invention relates to a high-voltage electrical switchgear, in particular to a gas-insulated isolating switchgear with a grounding switch. Background technique [0002] In the traditional gas insulated switchgear (GIS) manufactured by the applicant, among the existing isolating switch, earthing switch and fast earthing switch, the transmission mode generally adopts connecting rod and crank arm transmission, and the connecting part cannot realize direct connection and three-phase Linkage, so there is a relatively large number of parts, disassembly, complicated installation, and inconvenient transportation. On the other hand, with the rapid development of the power market, power users have higher and higher requirements for product appearance and structure in addition to product technical performance requirements. Therefore, the traditional grounding switch can no longer meet the increasingly higher requirements of users. , so it is necessary to impr...

Claims

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Application Information

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IPC IPC(8): H01H31/02H01H31/32H01H3/40H01H89/00
Inventor 王建西杨夙峰阮艳丽张震锋尹茂华汪勇
Owner CHINA XD ELECTRIC CO LTD
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