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Air circuit breaker with arc extinguishing apparatus

A technology of air circuit breaker and extinguishing device, which is applied in the direction of high voltage air circuit breaker, circuit breaker parts, circuits, etc.

Inactive Publication Date: 2008-07-02
LSIS CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Therefore, part of the fragments produced when the high-temperature arc melts a grid 21 area may be excessively discharged out of the arc extinguishing device through the through holes 32 and 42 and the communication hole 52 without filtering.

Method used

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  • Air circuit breaker with arc extinguishing apparatus
  • Air circuit breaker with arc extinguishing apparatus
  • Air circuit breaker with arc extinguishing apparatus

Examples

Experimental program
Comparison scheme
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Embodiment Construction

[0034] Reference will now be made in detail to the preferred embodiments of the invention, examples of which are illustrated in the accompanying drawings.

[0035] Hereinafter, an air circuit breaker having an arc extinguishing device will be described in detail according to an embodiment of the present invention.

[0036] As shown in Figure 2, an air circuit breaker with an arc extinguishing device may include: a frame 110, which has a receiving space 112; a fixed contact 120, which is placed inside the frame 110; 120 to contact or separate; and the extinguishing device 150, which may include: a chamber member 151 placed in the frame 110 and having an outlet 153 formed on one side thereof; a plurality of grids 171 placed inside the chamber member 151 to mutually spacing; and a filter cloth member 180, which is made of fabric and placed between the outlet 153 and the grid 171 to prevent the scattering of debris generated when the arc melts the grid 171 .

[0037] The frame 11...

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PUM

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Abstract

An air circuit breaker with an arc extinguishing apparatus comprising: a frame having a receiving space therein; a fixed contact disposed inside the frame; a movable contact disposed to be in contact with or separated from the fixed contact; and an extinguishing apparatus which includes a chamber member disposed in the frame and having an outlet formed at one side thereof, a plurality of grids disposed in the chamber member to be spaced apart from one another, and a cloth filter member formed of fabric and disposed between the outlet and the grids to prevent fragments which are generated by arcs from being scattered, whereby the air circuit breaker can be fabricated with low cost, and also fragments generated due to arcs can be prevented from being excessively scattered to the exterior.

Description

technical field [0001] The present invention relates to an air circuit breaker with an arc extinguishing device, more particularly, relates to an air circuit breaker with an arc extinguishing device, which can prevent the fragments generated during the arc extinguishing process from spreading to the external. Background technique [0002] A so-called circuit breaker means an electrical protection device installed between a power source and a load device in order to protect the load device and lines against abnormal currents (short circuit, overcurrent due to ground fault, etc.) that may occur in the circuit. [0003] Circuit breakers can be classified into oil circuit breakers (OCB), air circuit breakers (ACB), vacuum circuit breakers (VCB), or gas circuit breakers (GCB) according to the arc extinguishing medium. [0004] Typically, an air circuit breaker may include: a fixed contact and a moving contact, which are installed to contact or separate from each other; an openin...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H01H73/18H01H33/72H01H9/30
CPCH01H9/342H01H2009/347H01H33/04H01H33/08
Inventor 延永明
Owner LSIS CO LTD