Low-voltage universal vacuum circuit breaker

A vacuum circuit breaker, a universal technology, used in high-voltage air circuit breakers, circuits, high-voltage/high-current switches, etc., can solve problems such as the danger of electric spark explosion, and achieve the effect of ensuring no possibility of explosion and combustion

Inactive Publication Date: 2011-05-04
HONGXIU ELECTRIC
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0002] At present, in low-voltage (380V) distribution lines, universal air circuit breakers are generally used as control and protection equipment in the lines. Since the contact parts of this circuit breaker are exposed, during th

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  • Low-voltage universal vacuum circuit breaker
  • Low-voltage universal vacuum circuit breaker

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Embodiment Construction

[0014] In order to make the technical means, creative features, goals and effects achieved by the present invention easy to understand, the present invention will be further described below in conjunction with specific illustrations.

[0015] Such as figure 1 As shown, a low-voltage universal vacuum circuit breaker includes an insulating case 1, a vacuum interrupter 7, a conductive circuit, an operating mechanism 15, a transmission mechanism, and an intelligent controller (the operating mechanism 15 and the intelligent controller are not detailed in the figure). shown), wherein the vacuum interrupter 7, the conductive circuit, and the transmission mechanism are installed inside the insulating shell 1, and the operating mechanism 15 and the intelligent controller are installed outside the insulating shell 1; Circuit connection, the upper bus bar 6 and the lower bus bar 8 pass through the insulating shell 1 and are fastened by bolts, the lower bus bar 8 is connected to the condu...

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Abstract

The invention provides a low-voltage universal vacuum circuit breaker, and relates to the technical field of low-voltage switches, comprising an insulating shell as well as an operation mechanism and an intelligent controller which are arranged outside the insulating shell. The vacuum circuit breaker is characterized in that: a vacuum arc extinguish chamber, a conductive loop and a transmission mechanism are arranged inside the insulating shell; the vacuum arc extinguish chamber is connected with a push rod and the transmission mechanism, and the push rod is driven to move up and down by the transmission mechanism to switch the switching state of the vacuum circuit breaker; the upper end of the vacuum arc extinguish chamber is connected with an upper bus by a soft connection mode, and the lower end of the vacuum arc extinguish chamber is provided with a conductive board, and is connected with a lower bus through a conductive board; and the conductive loop is formed among the upper bus, the soft connection, the vacuum arc extinguish chamber, the conductive board and the lower bus by the connection of the conductive board and the lower bus. Compared with the conventional air breaker, by adopting the vacuum arc extinguish chamber instead of an original contact system, electrical spark generated in an on-off process of a switch, is closed in the vacuum arc extinguish chamber, and is completely isolated from the external environment, so that contact of the electrical spark and external air is insulated, and the possibility of explosion and burning is prevented.

Description

technical field [0001] The invention relates to the technical field of low-voltage switches, in particular to a low-voltage universal vacuum circuit breaker. Background technique [0002] At present, in low-voltage (380V) distribution lines, universal air circuit breakers are generally used as control and protection equipment in the lines. Since the contact parts of this circuit breaker are exposed, during the opening and closing process, the contact The electric sparks generated by the head are exposed to the air. If the air contains combustible gas, once it comes into contact with this electric spark, there may be an explosion hazard. Therefore, this kind of air circuit breaker cannot be used in chemical companies, mines and some other companies that may generate flammable gases. Based on this situation, a low-voltage switch with fully sealed contact parts is required. Contents of the invention [0003] The technical problem solved by the present invention is to provid...

Claims

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Application Information

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IPC IPC(8): H01H33/66
Inventor 郑逸扬周东云
Owner HONGXIU ELECTRIC
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