Novel transient recording fault indicator

Abstract

The invention provides a novel transient recording fault indicator, and relates to the field of circuit fault detection tools. A transparent cover is connected on the surface of the bottom part of theincluded body of the novel transient recording fault indicator. A decoration plate is arranged on the connecting position of the transparent cover and the body. The body is internally provided with aclosing magnet placing device. A magnetic core protective sleeve is arranged on the upper part of the body. The connecting position of the body and the transparent cover is provided with a screwed buckling sealing device. An induction piece is arranged on the upper part of the body and arranged on the same surface with the magnetic core protective sleeve. A test terminal is arranged on the position of the decoration plate on the body. With application of the technical scheme, the beneficial effects are that the novel transient recording fault indicator has great waterproof and dustproof functions, the movable plate magnetic catch can be conveniently detached, the possibility of assembling misoperation can be reduced, the induction piece is made of rubber material and later signal processing is facilitated, the power taking capacity of the permalloy can be protected, blind detection operation can be conveniently performed for blind detection of the production, the current detection accuracy can be guaranteed and the fault section can be rapidly located.

Description

technical field [0001] The invention relates to the field of circuit fault detection tools, in particular to a novel transient wave recording type fault indicator. Background technique [0002] Transient wave recording type fault indicator can accurately detect line fault type and quickly locate the fault section through accurate measurement of line current and high-speed wave recording. [0003] At present, the waterproof methods of the transient state recording type fault indicators currently available on the market are mainly screw-tight seals and screw-tight seals, which are complex in structure and difficult to lock the sealing device, and the waterproof effect is poor. The transient recording type fault indicator is glued and fixed in the main body, and the magnetic attraction of the moving plate is assembled and fixed in the moving plate assembly. This treatment method may easily lead to misoperation during the assembly operation of workers. The suction surface of th...

AI Technical Summary

Problems solved by technology

[0003] At present, the waterproof methods of the transient state recording type fault indicators currently available on the market are mainly screw-tight seals and screw-tight seals. The structure is complex and it is difficult to lock the sealing device, and the waterproof effect is poor.

The transient recording type fault indicator is glued and fixed in the main body, and the magnetic attraction of the moving plate is assembled and fixed in the moving plate assembly. This treatment method is likely to cause misoperation during the assembly operation of workers.

The suction surface of the magnetic suction is reversed, which leads to the failure of the suction. Since the magnetic suction in the main body is glued and fixed, it is very troublesome to disassemble. The electric field sensing sheet is generally made of stainless steel. When inducing the electric field, a wire is needed to bend the electric field sensing sheet of the thin sheet into contact with the wire to induce the electric field. Since the width of the electric field sensing sheet is generally small, the sampled current is relatively weak, which is beneficial to the later stage. The signal processing is unfavorable; in the process of moving location and transportation, the permalloy magnetic core in the existing fault indicator has no external protection, which is easy to be damaged, resulting in a decrease in the power-taking capacity of the magnetic core. When detecting the current, the plug-in terminals used are inconvenient to plug and unplug, and cannot achieve the effect of rapid detection

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