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Special high pressure current-limiting fuse in closed cabinet

A fuse, high-voltage technology, applied in the field of high-voltage current-limiting fuses, can solve problems such as temperature rise, damage, and danger of tube bursting, and achieve the effects of extending service life, continuous power supply, and improving combined performance.

Active Publication Date: 2014-12-10
西安祥源振力电气有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0002] In closed switch cabinets, gas-filled cabinets or sealed fuse sleeves and various switchgears, the internal temperature of the fuse may rise to several hundred degrees Celsius due to overcurrent. In this case, the fuse is installed in the switchgear In a narrow space, the temperature can reach the critical value of the fuse packaging material, resulting in the aging of the fuse housing material, and even the risk of tube explosion
However, the fuses in the prior art do not have a temperature limiting function, and are easily damaged due to the above problems

Method used

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  • Special high pressure current-limiting fuse in closed cabinet

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Embodiment Construction

[0016] The special high-voltage current-limiting fuse in the closed cabinet of the present invention is improved on the basis of the prior art high-voltage current-limiting fuse, which includes a high-voltage current-limiting fuse body, a striker on the high-voltage current-limiting fuse body A set of temperature sensing element assembly capable of realizing the temperature limiting function is installed on the component. The present invention is described in further detail below in conjunction with accompanying drawing:

[0017] see figure 1 , the temperature sensing element assembly of the present invention is composed of hanging pin 3, plugging cover 4, plugging head 5, superalloy wire 8 and conductive spring hook 12; plugging head 5 is pressed into the left end hole of guide sleeve 10 of high voltage current limiting fuse body , the outer end of the plug 5 is provided with a half-arc groove, the plug 4 is positioned and pressed into the corresponding half-arc groove of th...

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Abstract

The invention relates to a special high pressure current-limiting fuse in a closed cabinet, comprising a high pressure current-limiting fuse body; a set of temperature sensing element components are retrofitted on the impactor part of the high pressure current-limiting fuse body and is capable of realizing a temperature limitation function. Due to the fact that a set of temperature sensing element components which are capable of realizing the temperature limitation function are retrofitted on the impactor part, thus, the invention is capable of ensuring that the high pressure current-limiting fuse has the temperature limitation function, therefore, the fuse per se is effectively protected and the service life of the fuse is prolonged.

Description

technical field [0001] The invention belongs to the technical field of fuses, and relates to a high-voltage current-limiting fuse, in particular to a special high-voltage current-limiting fuse in a closed cabinet. Background technique [0002] In closed switch cabinets, gas-filled cabinets or sealed fuse sleeves and various switchgears, the internal temperature of the fuse may rise to several hundred degrees Celsius due to overcurrent. In this case, the fuse is installed in the switchgear In a narrow space, the temperature can reach the critical value of the fuse packaging material, which will cause the aging of the fuse shell material and even cause the risk of tube explosion. However, the fuses in the prior art do not have a temperature limiting function, and are easily damaged due to the above problems. Contents of the invention [0003] The purpose of the present invention is to overcome the above-mentioned shortcomings of the prior art, and provide a special high-vol...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H01H85/042
Inventor 居华贾恩亮马进才
Owner 西安祥源振力电气有限公司
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