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High voltage vacuum circuit breaker with high rated current value

A vacuum circuit breaker, rated current value technology, applied in the direction of high-voltage air circuit breakers, high-voltage/high-current switches, circuits, etc., can solve the problem that the rated current parameter is not easy to increase, so as to improve the rated current performance, improve thermal conductivity, The effect of improving heat dissipation performance

Inactive Publication Date: 2007-05-16
XI AN JIAOTONG UNIV
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  • Summary
  • Abstract
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AI Technical Summary

Problems solved by technology

Vacuum circuit breakers have outstanding capabilities in breaking short-circuit currents, but it is not easy to improve rated current parameters

Method used

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  • High voltage vacuum circuit breaker with high rated current value
  • High voltage vacuum circuit breaker with high rated current value
  • High voltage vacuum circuit breaker with high rated current value

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Embodiment Construction

[0012] The pole structure of the vacuum interrupter of the high voltage vacuum circuit breaker of the present invention is shown in FIG. 1 . Including the traditional vacuum circuit breaker, the structure of the vacuum interrupter pole of the vacuum circuit breaker includes a ceramic bushing 3 as an insulating pillar, a vacuum interrupter 8 is installed in the ceramic bushing 3, and the two vacuum interrupter 8 There are static conductive rods 13 and movable conductive rods 14 at the ends respectively, and there are upper conductive rings 6 and upper flanges 4 around the static conductive rods 13, and an upper terminal 1 connected to the upper conductive ring 6 is provided outside the ceramic casing 3; There is a lower conductive ring 7 and a conductive support 10 around the movable conductive rod 14, and a lower flange 5 is arranged below the conductive support 10, and the lower terminal 2 outside the ceramic bushing is connected through the lower conductive ring 7; above the ...

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Abstract

The invention relates to a high-voltage vacuum breaker for high rated current. Wherein, the vacuum arc-extinguish chamber pole includes the ceramic sleeve for insulation to accommodate the chamber, a static conductive pole on one chamber end with an upper conductive ring and flange, a movable pose on another end with an lower conductive ring and conductive support with lower flange, two wire terminals on sleeve to connect former conductive rings; a first and second radiator near two flanges respectively; some insulation oil for heat dissipation between the sleeve and chamber and the support; and one or some holes on static pole to insert heat pipe.

Description

technical field [0001] The invention relates to a high-voltage circuit breaker, in particular to a high-voltage vacuum circuit breaker with a high rated current value. Background technique [0002] Currently in 126kV and above high voltage and extra high voltage circuit breakers SF 6 Circuit breakers are mainstream products. SF 6 Gas is a gas with the strongest greenhouse effect among the six greenhouse effect gases pointed out in the "Kyoto Protocol". Vacuum circuit breakers have the advantages of environmental protection and high product performance, and are currently the mainstream products in the medium voltage class. Replace SF with high voltage vacuum circuit breaker 6 A circuit breaker is a good option. Vacuum circuit breakers have outstanding capabilities in breaking short-circuit currents, but it is not easy to improve rated current parameters. Contents of the invention [0003] The purpose of the present invention is to provide a high-voltage vacuum circuit...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H01H33/66H01H33/664
CPCH01H2009/523
Inventor 余小玲王季梅刘志远修士新
Owner XI AN JIAOTONG UNIV
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