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High-voltage fuse

A high-voltage fuse and melt technology, applied to electrical components, circuits, emergency protection devices, etc., can solve problems such as falling from high altitudes, and achieve the effect of simple structure and convenient use

Inactive Publication Date: 2018-03-27
GUIZHOU POWER GRID CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, two people must work together to replace it. One person presses the end cover to overcome the spring force, and the other person disassembles and installs the screws. The high-voltage fuse is installed in a high-altitude and narrow place, so there is a risk of falling from a high altitude when working with two people.

Method used

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Embodiment Construction

[0014] Hereinafter, preferred embodiments of the present invention will be described in detail with reference to the accompanying drawings. It should be understood that the preferred embodiments are only for illustrating the present invention, but not for limiting the protection scope of the present invention.

[0015] Such as figure 1 As shown, the high-voltage fuse includes an insulating bushing 1, and end caps 2 are respectively arranged at both ends of the bushing. Compression springs are arranged at both ends, insulating support columns 3 are respectively arranged at the lower parts of both ends of the casing 1, the top of the insulating support column 3 is provided with a hoop A4 hugged on the casing, and the insulating support column 3 is provided with a hoop B5. The hoop B5 on the opposite side of the insulating support column 3 is provided with a telescopic plate capable of pressing the end cover.

[0016] There are two telescopic plates, which are respectively arra...

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PUM

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Abstract

The invention discloses a high-voltage fuse, and the fuse comprises an insulating bushing. Two ends of the bushing are provided with end covers, and the end covers are provided with wires. The interior of the bushing is provided with a fuse body, and two ends of the fuse body are provided with compression springs. Insulating supporting columns are disposed under the two ends of the bushing, and the tops of the insulating supporting columns are provided with hoops A holding the bushing. The insulating supporting columns are provided with hoops B, and the hoops B at the departing sides of the two insulating supporting columns are provided with telescoping plates which can press the end cover. According to the invention, the supporting columns are provided with the telescoping plates. When the telescoping plates extend to block the end parts of the end covers, the elastic forces generated by the springs can be withstood. At this moment, a person can disassemble or assemble a screw withoutpressing. After the disassembly or assembly of the screw, the telescoping plate can withdraw, so the fuse is convenient to use and is simple in structure.

Description

technical field [0001] The invention relates to a protection device for electric equipment, in particular to a high-voltage fuse. Background technique [0002] Due to its safety, reliability and economy, high-voltage fuses have been widely promoted and applied in the power industry. At present, most substation transformers and voltage transformers of 35kV and below are protected by high-voltage fuses. When the high-voltage fuse blows due to voltage fluctuation or other reasons, it must be replaced to ensure the normal operation of the system. However, two people must coordinate the work during the replacement, one person presses the end cover to overcome the spring force, and the other removes the screws, and the high-voltage fuse is installed in a high-altitude and narrow place, so there is a risk of falling from a high altitude when two people work. Contents of the invention [0003] In view of this, the purpose of the present invention is to provide a high-voltage fus...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H01H85/20H01H85/042
CPCH01H85/2045H01H85/042
Inventor 袁奔丁宇洁苏鑫尚津臣仇伟杰张霞鹏申炜罗辉田景刚
Owner GUIZHOU POWER GRID CO LTD