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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 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 improve the traditional isolating switch device to make it simpler in structure, more reliable in performance, more beautiful in appearance, and further realize standardized design

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0022] Such as figure 1 As shown, a linear isolating switch device, the isolating switch is linear, using gear, rack drive, including filled with SF 6 Housing 12 of insulating gas, a isolating switch and a grounding switch, the moving end of isolating switch includes shielding conductor 3, moving end shielding cover 4, moving contact shielding cover 10, moving contact seat 5, shielding cover conductor 6, vertical Insulation rod 7, operating shaft 8, pinion shaft 24, moving contact 21 of isolating switch and rack 25, etc.; 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 end 23 is housed on the moving end portion shielding cover conductor 6, and the grounding switch moving end 22 is fixed on the lower small support tube in the housing 12.

[0023] The movable end part of the isolator is fixed on the housin...

Embodiment 2

[0026] Such as figure 2 As shown, it is another linear isolating switch device, the moving terminal of the isolating switch and figure 1 The same, but another arrangement for the static end part according to the different wiring methods, that is, the insulating basin 27 of the static end part of the disconnector and the insulating basin 1 of the moving end are in the same horizontal direction and fixed at both ends of the housing 12. The static contact 20 is fixed on the static contact seat 16, and is connected with the shield conductor 14 and fixed to the static end part. In this arrangement, there is an additional shielding conductor 34 on the shield conductor 14 at the static end. According to different wiring methods, the shielding conductor 34 can be used as the static end part of the quick grounding switch, and the corresponding small size of the housing 12 The moving contact part of the quick earthing switch and the operating mechanism of the quick earthing switch can...

Embodiment 3

[0028] Such as image 3 As shown, it is a right-angle isolating switch device, which adopts a gear and lead screw transmission mechanism, including a housing 12, an isolating switch, and a moving and static end part of an earthing switch. The moving end of the isolating switch includes an operating shaft 8, flanges 30, 31 , 32, insulating pull rod 7, lead screw 33, conductor 36, moving contact seat 6 and moving contact 21, etc., the static end part and figure 2 Same. The moving end part of the isolator is fixed on the housing 12 through an insulating basin 29 , and the operating transmission mechanism is fixed on the housing 12 through a hat-shaped 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, and the horizontal insulating pulling rod 33 is connected to a nut through the right end connecting piece 28. The ...

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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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