All-insulated outdoor ejection type fuse

A catapult, fuse technology, applied in electrical components, circuits, emergency protection devices, etc., can solve problems such as hidden dangers of safe operation of power distribution systems and reduced insulation effects

Inactive Publication Date: 2012-06-20
武汉雷泰电力新技术有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Outdoor drop-out fuses are widely used in overhead insulated lines, and the existing outdoor drop-out fuses have exposed upper and lower terminals and fuse-carrying parts without any insulation protection, which greatly reduces the insulation effect of overhead insulated lines. Bring hidden dangers to the safe operation of power distribution system

Method used

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  • All-insulated outdoor ejection type fuse
  • All-insulated outdoor ejection type fuse
  • All-insulated outdoor ejection type fuse

Examples

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Embodiment Construction

[0043] Below in conjunction with accompanying drawing and embodiment the present invention is described in detail:

[0044] 1. Overall

[0045] Such as figure 1 , The present invention consists of a first core A, a second core B and auxiliary parts C.

[0046] 1. The first core A

[0047] Such as figure 2 , 3 , the first core A is composed of compression screw 1, first sliding contact 2, second sliding contact 3, spring 4, limit handle cap 5, second insulating sleeve 6, third sliding contact 7, method Composed of blue plate 8, connecting screw 9, locking handle 10, fuse 11 and pressure plate 12;

[0048] The second sliding contact 3 is inside the first sliding contact 2 and is in elastic contact with the surface;

[0049] The fuse 11 passes through the second sliding contact 3, and the front handle cap of the fuse 11 is stuck in the limit groove at the front end of the second sliding contact 3, so that the front end of the fuse 11 is fixed; the compression screw 1 and t...

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PUM

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Abstract

The invention discloses an all-insulated outdoor ejection type fuse, which relates to the fuses of overhead insulated lines. The all-insulated outdoor ejection type fuse is composed of a first core body (A), a second core body (B) and auxiliary parts (C). For the fuse, the whole fuse is externally coated by insulating materials, and the fuse is insulated from the outside, so that the overhead insulated lines can realize real all-insulated state; upper and lower wiring terminals, upper and lower contacts, a fuse carrier and the like of the fuse are all insulated from the outside, so that accidents of electric discharge to external objects, such as tree branches and the like, caused by exposure of electrical parts of the fuse are avoided; when the fuse is in over-current situation, a fuse wire fuses, one part of the fuse is obviously separated from the main body, and an obvious disconnection point for line repair is ensured; and the all-insulated outdoor ejection type fuse can be a substitution product for realizing the miniaturization and the maintenance-free property of a high-voltage drop type fuse.

Description

technical field [0001] The invention relates to a fuse for an overhead insulated line, in particular to a fully insulated outdoor ejection type fuse. Background technique [0002] At present, overhead insulated lines are generally used in urban distribution networks in my country's power system, and their usage accounts for more than 70% of the distribution network. Outdoor drop-out fuses are widely used in overhead insulated lines, and the existing outdoor drop-out fuses have exposed upper and lower terminals and fuse-carrying parts without any insulation protection, which greatly reduces the insulation effect of overhead insulated lines. It brings hidden dangers to the safe operation of the power distribution system. Contents of the invention [0003] The purpose of the present invention is to overcome the shortcomings and deficiencies of the prior art, and provide a fully insulated outdoor ejection fuse (fuse for short). [0004] The purpose of the present invention i...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H01H85/02H01H85/36
Inventor 罗彦周宪义
Owner 武汉雷泰电力新技术有限公司
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