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Electrified railway solid insulated high-current double-break isolation switch

A technology of electrified railways and solid insulation, applied in the direction of electric switches, air switch parts, electrical components, etc., to achieve the effect of preventing the increase of resistance, reducing the size and compact structure of the switch

Inactive Publication Date: 2019-09-24
SICHUAN HUIYOU ELECTRICAL CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0002] The main feature of the isolating switch is that it has no arc extinguishing ability, and it can only open and close the circuit under the condition of no load current.

Method used

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  • Electrified railway solid insulated high-current double-break isolation switch
  • Electrified railway solid insulated high-current double-break isolation switch

Examples

Experimental program
Comparison scheme
Effect test

Embodiment

[0028] A preferred embodiment of the present invention provides a solid-insulated high-current double-break isolating switch for electrified railways, which includes a propulsion mechanism 2 and a base 1 fixedly connected to a building. A U-shaped insulating pipe bus 3 is fixedly arranged on the plane of the front end of the mechanism 2, and movable contacts are fixedly arranged on the two arms of the U-shaped insulating pipe bus 3;

[0029] It also includes an insulator 9 fixedly connected to the building, the front end of the insulator 9 is connected to a contact box 6, and a bus bar 8 and a static contact 7 are fixedly arranged in the contact box 6.

[0030] When the isolating switch needs to be closed, the propulsion mechanism 2 is operated to move the propulsion mechanism 2 in the guide groove of the base 1, and the propulsion mechanism 2 pushes the U-shaped insulating tube bus bar 3, the vulcanized contact arm 4 and the plum blossom contact 5 to move forward , until the ...

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PUM

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Abstract

The invention relates to an electrified railway solid insulated high-current double-break isolation switch comprising a propulsion mechanism and a base which is fixedly connected with a building. The base is provided with a guide groove cooperating with the propulsion mechanism. A U-shape insulating tube bus is fixedly arranged on the plane of the front end of the propulsion mechanism. The two arm of the U-shaped insulating tube bus are fixedly provided with moving contacts. The electrified railway solid insulated high-current double-break isolation switch further comprises an insulator which is fixedly connected with the building. A contact box is connected on the front end of the insulator. A bus and a static contact are fixedly arranged in the contact box. The switch ensures the precise alignment of the center of the moving contacts and the static contacts while realizing a more compact switch structure.

Description

technical field [0001] The invention belongs to the technical field of isolating switches, in particular to a solid-insulated high-current double-break isolating switch for electrified railways. Background technique [0002] The main feature of the isolating switch is that it has no arc extinguishing ability, and can only open and close the circuit under the condition of no load current. The isolating switch is used in lines and power supply facilities of various voltage levels. By changing the circuit connection, the line or equipment is isolated or connected to the power supply. It is characterized in that the isolating switch can form a visible fracture when it is isolated, ensuring the reliable disconnection of the line or equipment. Ensure the personal safety of maintenance personnel. [0003] Isolating switches are widely used in 27.5kV electrified railway power supply systems. The isolation performance is related to the safety of locomotives and the personal safety o...

Claims

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Application Information

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IPC IPC(8): H01H31/02
CPCH01H31/02H01H31/023H01H31/026
Inventor 黄彦全张忠林谭开兵邓国平代雪峰王铭亮
Owner SICHUAN HUIYOU ELECTRICAL CO LTD