High-voltage current-limiting fusing protection device

A protection device and current-limiting technology, applied in emergency protection devices, electrical components, circuits, etc., can solve problems such as slow fusing, load damage, and long fuse fusing time, so as to quickly cut off the circuit, avoid load damage, and shorten Effect of fusing time

Pending Publication Date: 2020-09-01
ANHUI HUIDIAN SCI & TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

In the prior art, the fusing time of the fuse is long and

Method used

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  • High-voltage current-limiting fusing protection device
  • High-voltage current-limiting fusing protection device
  • High-voltage current-limiting fusing protection device

Examples

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Embodiment Construction

[0020] The present invention will be further described in detail below in conjunction with the accompanying drawings and specific embodiments. The embodiments of the present invention have been presented for purposes of illustration and description, but are not intended to be exhaustive or to limit the invention to the form disclosed. Many modifications and changes will be apparent to those of ordinary skill in the art. The embodiment was chosen and described in order to better explain the principles of the invention and the practical application, and to enable others of ordinary skill in the art to understand the invention and design various embodiments with various modifications as are suited to the particular use.

[0021] Such as figure 1 As shown, the technical solution of the present invention is a high-voltage current-limiting fuse protection device, which includes a fuse FU and a zinc oxide nonlinear element FR arranged in parallel with the fuse, and also includes a h...

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PUM

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Abstract

The invention discloses a high-voltage current-limiting fusing protection device. The device comprises a fuse and a zinc oxide nonlinear element connected with the fuse in parallel, and further comprises a high-voltage isolation switch and a vacuum circuit breaker which are connected to the two ends of the fuse respectively in series, wherein the fuse comprises a plurality of fuse pieces which arestacked and connected in parallel, a plurality of fuse holes are evenly distributed in the fuse pieces, and the fuse holes are in a semi-elliptical arc shape and are symmetrically formed in the two sides of the fuse pieces. According to the high-voltage current-limiting fusing protection device, the fusing time is short, and the load is prevented from being damaged.

Description

technical field [0001] The invention belongs to the field of circuit protection, and more specifically relates to a high-voltage current-limiting fusing protection device. Background technique [0002] A fuse is a kind of electrical appliance that uses a metal conductor as a melt in series in the circuit. When an overload or short-circuit current passes through the melt, it will fuse due to its own heating, thereby breaking the circuit. Fuses are simple in structure and easy to use, and are widely used as protection devices in power systems, various electrical equipment and household appliances. In the prior art, the fusing time of the fuse is long and the fusing is slow, which causes serious damage to the load. Contents of the invention [0003] The purpose of the present invention is to provide a high-voltage current-limiting fuse protection device, which has a short fusing time and prevents the load from being damaged. [0004] The technical solution of the present in...

Claims

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Application Information

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IPC IPC(8): H01H85/02H01H85/042H01H85/06H01H85/08H01H85/12H01H85/30
CPCH01H85/0241H01H85/042H01H85/06H01H85/08H01H85/12H01H85/30
Inventor 宋安超张国勇卫平春李富强
Owner ANHUI HUIDIAN SCI & TECH
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