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Arc Fault Detection Method Based on CZT Low-Frequency Harmonic Current Analysis

机译:基于CZT低频谐波电流分析的电弧故障检测方法

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摘要

This paper presents a method for the detection of series arc faults in electrical circuits, which has been developed starting from an experimental characterization of the arc fault phenomenon and an arcing current study in several test conditions. Starting from this, the authors have found that is it possible to suitably detect arc faults by means of a high-resolution low-frequency harmonic analysis of current signal, based on chirp zeta transform, and a proper set of indicators. The proposed method effectiveness is shown by means of experimental tests, which were carried in both arcing and nonarcing conditions and in the presence of different loads, chosen according to the UL 1699 standard requirements.
机译:本文提出了一种用于检测电路中串联电弧故障的方法,该方法的开发是基于对电弧故障现象的实验表征和在几种测试条件下的电弧电流研究。从这开始,作者发现可以通过基于线性调频zeta变换的电流信号的高分辨率低频谐波分析和一组适当的指示器来适当地检测电弧故障。通过根据UL 1699标准要求选择的电弧试验和非电弧试验条件下以及存在不同负载的情况下进行的实验测试,证明了所提出方法的有效性。

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