Device for fault arc detection and positioning in commercial power environment and working method thereof

Abstract

The invention discloses a device for fault arc detection and positioning in a mains supply environment. Comprising a high-speed AD acquisition module, a low-speed AD acquisition module, an isolation module, a signal conditioning module, a current transformer module, a switch module, a DA output module, a screen display module, a fault arc positioning analysis module, a fault arc detection analysis module, a fusion analysis module and a fault arc generation module, the DA output module is used for receiving a detection signal and sending the detection signal to the fault arc generation module, the fault arc generation module is used for generating a fault arc and generating a reflection signal when the detection signal encounters the fault arc, and the high-speed AD acquisition module is used for acquiring the detection signal generated by the DA output module and the reflection signal generated by the fault arc generation module. The technical problem that an existing arc fault detection device can only perform fault arc detection and cannot realize fault arc detection and positioning and fault arc type detection at the same time can be solved.

Description

technical field [0001] The invention belongs to the technical field of electrical fire safety, and more specifically relates to a device for detecting and locating a fault arc in a commercial power environment and a working method thereof. Background technique [0002] With the improvement of the application level of electric energy in society, the types of household electrical equipment have gradually increased, the electricity consumption of residents has increased sharply, and electrical fire accidents have occurred frequently, so that the safety of electricity consumption in low-voltage lines has attracted much attention. Arc fault is one of the important causes of electrical fires under low-voltage lines. Detection and location of arc faults are of great significance to avoid the occurrence of electrical fires in households. [0003] However, there are some technical problems that cannot be ignored in the existing arc fault detection device: first, the existing arc faul...

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Problems solved by technology

[0004] Aiming at the above defects or improvement needs of the prior art, the present invention provides a device for detecting and locating arc faults in the mains environment and its working method. The purpose is to solve the problem that the existing arc fault detection devices can only perform fault arc detection, but cannot realize the technical problems of fault arc detection and location and fault arc type detection at the same time, and the technical problem of low accuracy rate of fault arc detection, and when the fault arc is detected, it cannot realize accurate fault arc location, thus Technical problems that lead to failure to be eliminated in time and cause great hidden dangers to household electricity safety

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