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Adaptable arc chute for circuit breaker

A technology of arc extinguishing chamber and equipment, which is applied in the direction of circuits, electric switches, electrical components, etc., and can solve the problem that the arc extinguishing chamber cannot be used for another rated voltage

Inactive Publication Date: 2011-06-01
SECHERON SA
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Therefore, an interrupter designed for a given rated voltage generally cannot be used for another rated voltage

Method used

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  • Adaptable arc chute for circuit breaker
  • Adaptable arc chute for circuit breaker
  • Adaptable arc chute for circuit breaker

Examples

Experimental program
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Embodiment Construction

[0009] In these figures, reference numeral 1 designates a power supply line, reference numeral 2 designates a switch composed of conventional stationary and movable contacts, and reference numeral 3 designates an arc extinguishing chamber according to the present invention. As is known, the arc chute 3 comprises several arc chute units 4 connected in series by conductive elements 5 . Each interrupter unit 4 includes several separate metal partitions 6 . In the example shown, four identical interrupter units 4 are provided.

[0010] refer to figure 1 , when the switch 2 is opened, that is, when the movable contact moves away from the stationary contact, while current flows in the power line 1, an arc is formed between said contacts. As indicated by the arrows in the figure, the arc is forced into the arc chute 3 where it is broken down into a large number of small arcs in each arc chute unit 4 and into current flowing through the conductive elements 5 .

[0011] Each arc ext...

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PUM

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Abstract

An arc chute (3) for a circuit interrupting device comprises a plurality of arc chute units (4) connected in series and is characterised by further comprising a switch (7) which is connected in parallel with part (4a) of the arc chute units (4) to bypass said part (4a) of the arc chute units (4) when in a closed position.

Description

technical field [0001] The present invention relates to an arc chute or "arc chute". Background technique [0002] Arc extinguishing chambers are used in circuit interrupting devices, such as circuit breakers or contactors, and in particular in DC (direct current) circuit interrupting devices. [0003] DC circuit interrupting devices typically include stationary and moving contacts. In a normal state, these contacts are in contact with each other, and current flows therethrough. To interrupt the circuit, the movable contact is moved away from the stationary contact by some type of electromechanical actuator, which creates an arc between the two contacts. The arc is pushed into the arc extinguishing chamber under the action of the magnetic field generated by the circuit. In this interrupter, the arc is split into a large number of small arcs which eventually interrupt the conduction between the separated contacts. [0004] The arc extinguishing chamber produces an arcing ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H01H33/04H01H9/34H01H73/18H01H33/08H01H9/30
CPCH01H9/36H01H11/0006H01H33/08
Inventor H·迪福S·马丁B·菲舍尔
Owner SECHERON SA