Low-voltage arc fault test and analysis system

Abstract

The invention relates to a low-voltage arc fault test and analysis system. The low-voltage arc fault test and analysis system is characterized by comprising an automatic arc generation module, a sampling module, a measurement module and a feature analysis and test module, wherein the automatic arc generation module is connected with load and used for generating a corresponding arc fault; the sampling module is used for receiving an arc fault signal transmitted by the automatic arc generation module, and conditioning and collecting the arc fault signal; the measurement module is used for conveying and measuring the arc fault signal, and transmitting he arc fault signal to the feature analysis and test module; the feature analysis and test module is used for achieving visual feature transformation and analysis on the arc fault signal and achieving a test function of an arc-fault circuit-interrupter (AFCI). By adopting the low-voltage arc fault test and analysis system, automatic generation of the required arc fault signal is facilitated, and visual analysis of fault features and output test of the fault signal are achieved.

Description

technical field [0001] The invention relates to the technical field of AFCI analysis and design, in particular to a low-voltage arc fault test and analysis system. Background technique [0002] Low-voltage arc fault is an important cause of electrical fires, and its fault characteristics have become one of the hotspots in the intelligent research of low-voltage electrical appliances. Arc fault is the most frequent and most dangerous hidden danger in electrical fires, and it often forms an ignition source with large ignition energy. Traditional circuit breakers and protective devices cannot provide effective protection against arc faults. Therefore, it is of great significance to conduct comprehensive, in-depth and scientific research on low-voltage arc faults, master its typical characteristics, and find methods for diagnosing arc faults. Arc Fault Circuit Interrupter (AFCI) is a new type of electrical appliance for arc fault detection and protection. Since the type and ch...

AI Technical Summary

Problems solved by technology

In recent years, some researchers have applied wavelet transform and other signal processing methods to the extraction of arc fault characteristics, but the characteristic curve data and fault arc characteristic data of various load types need to be obtained through a large number of experiments.

At present, most researchers at home and abroad simply build an arc starting device to obtain arc fault waveform data, and then import the data into relevant software for analysis. There is no special data analysis and experimental verification platform, resulting in a lack of research on low-voltage arc faults. Systematic and versatile

With the development of science and technology, the types of loads are also diversified and have various usage characteristics. The analysis and research of arc characteristics under different load characteristics by traditional methods are limited by hardware conditions.

Images