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Three-station vacuum arc extinguishing chamber

A vacuum interrupter and three-station technology, applied in the field of arc interrupter, can solve the problems of high cost and complex structure, and achieve the effects of low cost, simplified driving device and strong flow capacity

Active Publication Date: 2015-02-25
XIAN HIGH VOLTAGE APP RES INST CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0002] If the existing isolating switch and grounding switch for solid insulation can realize the three functions of connecting, isolating and grounding in three positions, two vacuum interrupters must be used to realize the structure, which is complicated in structure and high in cost.

Method used

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  • Three-station vacuum arc extinguishing chamber

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Embodiment Construction

[0019] The technical scheme of the present invention will be described in detail below in conjunction with the accompanying drawings.

[0020] see figure 1 As shown, a three-station vacuum interrupter 12 of the present invention includes a main contact 1, a conductive rod 2, an isolation contact 3, a ground contact 4, a bellows 5, a guide sleeve 6, a magnetic ring 7 and an insulating shell . The insulating case includes a lower insulating case 8 , a middle insulating case 9 and an upper insulating case 10 . The main contact 1, the isolation contact 3, and the ground contact 4 are respectively fixed and sealed with the upper insulating shell 10, the middle insulating shell 9 and the lower insulating shell 8, and the magnetic ring 7 is sealed and fixed at the lower part of the lower insulating shell 8, and the magnetic ring 7 is provided with There is a guide sleeve 6, the upper end of the bellows 5 is welded on the conductive rod 2, and the lower end is welded to the magnetic...

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Abstract

The invention discloses a three-station vacuum arc extinguishing chamber, which is characterized by comprising a main contact, a conducting rod, an isolating contact, a grounding contact, a corrugated pipe, a guide sleeve, a magnetic ring and an insulated shell, wherein the main contact, the isolating contact and the grounding contact are arranged on the insulated shell from top to bottom; the magnetic ring is fixed on the lower part of the insulated shell; and the upper end of the corrugated pipe is welded to the conducting rod, and the lower end of the corrugated pipe is welded to the magnetic ring. Three functions of three station switch-on, isolation and grounding can be realized by only one vacuum arc extinguishing chamber instead of two arc extinguishing chambers in the prior art, and the three-station vacuum arc extinguishing chamber is an advanced vacuum isolating and grounding arc extinguishing chamber, simple in structure and low in cost. The inner walls of the contacts are provided with embedded watchband contact fingers, and the contacts have the characteristics of reliable contact and high through-current capacity; and at a switch-on working position and a grounding working position, extra holding power is not required, and a driving device for isolating and grounding switches is simplified.

Description

technical field [0001] The invention relates to the technical field of high-voltage switches, in particular to an arc extinguishing chamber for realizing three-station vacuum isolation and grounding functions. Background technique [0002] If the existing isolating switch and grounding switch for solid insulation can realize the three functions of connecting, isolating and grounding, two vacuum interrupters must be used to realize the structure, which is complicated in structure and high in cost. Contents of the invention [0003] The object of the present invention is a three-station vacuum interrupter to solve the above technical problems. [0004] In order to achieve the above object, the present invention adopts the following technical solutions: [0005] A three-station vacuum interrupter is characterized in that it includes main contacts, conductive rods, isolation contacts, grounding contacts, bellows, guide sleeves, magnetic rings and insulating shells; the main c...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H01H33/664
Inventor 胡良蓉骆虎王帅魏泉
Owner XIAN HIGH VOLTAGE APP RES INST CO LTD
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