High-voltage fuse

Abstract

The invention discloses a high-voltage fuse. The high-voltage fuse comprises a support post, a fuse wire, a shell, a left cover plate, end caps and a right cover plate, wherein the fuse wire wraps thesupport post, the shell wraps the fuse wire, two ends of the fuse wire are respectively connected with the left cover plate and the right cover plate, the end caps are respectively arranged at two ends of the fuse wire, and the high-voltage fuse is characterized in that the material of the shell is transparent plastic or transparent glass. The material of the shell is the transparent plastic or the transparent glass, thus, the high-voltage fuse can be used for intuitively observing and determining whether the internal fuse wire is fused or not by an eye, the risk that the fused high-voltage fuse cannot be timely found out is prevented, and replacement of the high-voltage fuse is facilitated.

Description

technical field [0001] The invention relates to the technical field of electrical protection, in particular to a high-voltage fuse. Background technique [0002] The transformer is equipped with a high-voltage fuse. When the transformer fails and the current rises to a certain value, the high-voltage fuse will blow to cut off the current, thereby protecting the safe operation of the transformer. However, most of the existing high-voltage fuse casings are made of ceramics. After the fuse is blown, it cannot be found intuitively, and it cannot directly reflect the fusing state of the high-voltage fuse during the operation of the transformer. When the phase-to-phase voltage is abnormal, it will affect the operator's correct judgment of the phase failure on the high-voltage side, which will cause danger to the normal operation of the transformer; the high-voltage fuse that needs to be measured can be found to be blown, and cannot be repaired and replaced in time. Contents of t...

AI Technical Summary

Problems solved by technology

However, most of the existing high-voltage fuse casings are made of ceramics. After the fuse is blown, it cannot be found intuitively, and it cannot directly reflect the fusing state of the high-voltage fuse during the operation of the transformer. When the phase-to-phase voltage is abnormal, it will affect the operator's correct judgment of the phase failure on the high-voltage side, which will cause danger to the normal operation of the transformer; the high-voltage fuse that needs to be measured can be found to be blown, and it cannot be repaired and replaced in time

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