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Arc energy absorber

A technology for a casing and a switch device, which is applied in the field of exhaust gas devices, can solve the problems that it is difficult to ensure good contact between the phase change material and the hot gas, and the device is difficult to manufacture.

Inactive Publication Date: 2014-08-06
EATON IND NETHERLANDS
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] Such devices are difficult to fabricate and ensure good contact between the phase change material and the hot gas

Method used

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  • Arc energy absorber
  • Arc energy absorber

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Embodiment Construction

[0025] exist figure 1 In , a device according to the invention is shown. The device 1 has a monolithic housing 2 with a plurality of parallel channels 3 extending from a first side 4 to an opposite side 5 . The device 1 is preferably made, for example, from plaster by extrusion. When hot gas G is guided through channel 3, heat is exchanged with gypsum to separate out water, thereby cooling the hot gas.

[0026] figure 2 A second embodiment 20 of the device according to the invention is shown. The device 20 has a housing 21 with a grille 22 on the front side and a grille 23 on the opposite rear side. The housing 21 is also filled with balls 24 of a hydrous mineral, preferably gypsum.

[0027] The hot gas G enters the front grill 22 and is coiled between the balls 24 so that heat is exchanged with the balls 24 and water is separated to cool the hot gas G.

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Abstract

The invention relates to a device for cooling exhaust gases caused by an electrical arc in high or medium voltage switch gear, which device comprises a housing with an inlet and an outlet for passage of the gases, wherein a hydrous mineral is arranged in the housing for cooling the gases with the water contained in the hydrous mineral.

Description

technical field [0001] The invention relates to a device for cooling exhaust gas caused by an electric arc in a high-voltage or medium-voltage switchgear, the device comprising a housing with an inlet and an outlet for the passage of the gas. Background technique [0002] In high and medium voltage switchgear, accidental internal arcing may occur. Such arcs have high energy and lead to a temperature increase and a sudden increase in pressure of the gas in the housing of the switching device. To relieve stress, a typical switchgear is usually provided with a gas pressure safety panel, which is flipped open by the high voltage of the arc. [0003] If no other parts are supplied, hot gases will be blown out of the switchgear housing. In order to avoid damage to other objects and people around the switchgear housing, arc absorbers are sometimes arranged in front of the gas pressure fuse. Such arc absorbers consist of a ceramic element with several parallel channels through wh...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H01H9/30
CPCH01H2213/00H01H9/302H01H33/76H01H9/342
Inventor A·拉莫斯
Owner EATON IND NETHERLANDS