Search results for "arc faults detection"

showing 6 items of 6 documents

A set of indicators for arc faults detection based on low frequency harmonic analysis

2016

In this paper a novel set of indicators is presented for arc faults detection in electrical circuits. The indicators are defined starting from an experimental characterization of the arc fault phenomenon and the study of the arcing current in several test conditions, which were chosen in accordance with the UL 1699 Standard requirements. The proposed parameters are measured by means of a high resolution low frequency spectral analysis of the arcing current, which allows to achieve a good spectral resolution even with short observation windows.

Engineering020209 energyArc-fault circuit interrupter02 engineering and technologyUL 1699Low frequencylaw.inventionArc (geometry)Harmonic analysisElectric arcarc fault circuit interrupter (AFCI)power system measurements power system harmonics fault diagnosis arc discharges interrupters arc faults detection home protection electrical safety series arcs arc fault circuit interrupter (AFCI) UL 1699lawhome protection0202 electrical engineering electronic engineering information engineeringElectronic engineeringSpectral resolutionpower system harmonicsinterruptersbusiness.industry020208 electrical & electronic engineeringarc faults detectionfault diagnosispower system measurementsFault indicatorElectrical networkarc dischargeselectrical safetybusinessSettore ING-INF/07 - Misure Elettriche E Elettroniche2016 IEEE International Instrumentation and Measurement Technology Conference Proceedings
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Experimental characterization of series arc faults in AC and DC electrical circuits

2014

This paper presents an experimental characterization of the arc fault phenomenon, for both AC and DC systems, focusing the attention on series arcs. The aim of the study is to find some current characteristics, which can be significant for the purpose of arc detection. The arcing current signal is analyzed in both time and frequency domain. For the AC analysis, the test conditions are chosen in accordance with the “unwanted tripping tests” and the “operation inhibition tests” reported in the Standard UL 1699. The DC study is carried out on the currents waveforms acquired during some on-field tests on a PV plant. Starting from the study herein presented, the authors have found that is it pos…

Engineeringbusiness.industryarc faults detection home protection photovoltaic systems electrical safety series arcs arc fault circuit interrupter (AFCI) UL 1699Electrical engineeringArc-fault circuit interrupterlaw.inventionArc (geometry)Electric arclawFrequency domainElectrical networkElectronic engineeringHarmonicArc flashWaveformbusinessSettore ING-INF/07 - Misure Elettriche E Elettroniche
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ARC FAULT DETECTION EQUIPMENT AND METHOD USING LOW FREQUENCY HARMONIC CURRENT ANALYSIS

2012

An arc fault detection circuit includes a current sensing circuit coupled to a line conductor carrying a current. The current sensing circuit operates to sense current and output data indicative of the sensed current. A processing circuit implements a frequency transform algorithm to transform the output data to frequency data in a low frequency range and with a high spectral resolution where a minimum short time observation window is concerned. The processing circuit identifies an arc fault condition on the line conductor by identifying differences in said frequency data between at least two subsequent observation windows and identifying characteristics which exceed thresholds.

Settore ING-INF/07 - Misure Elettriche E Elettronichearc faults detection home protection photovoltaic systems electrical safety series arcs arc fault circuit interrupter (AFCI) harmonic analysis chirp-z transform (CZT)
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Series arc faults in AC and DC electrical circuits. Characterization and detection methods

2013

This paper analyzes the problem of the arc faults in both AC and DC low voltage electrical circuits. The state-of-the-art of the arc fault detection methods is analyzed together with the UL 1699 and UL 1699B Standard requirements for protection devices against arc faults (AFCIs). An experimental characterization is carried out of the arc fault phenomenon, for both AC and DC systems, focusing the attention on series arcs. The experimental measurements are carried out on a proper test bench, which has been developed in order to reproduce significant arcing conditions, in accordance with the UL 1699 Standard requirements.

arc faults detection home protection photovoltaic systems electrical safety series arcs arc fault circuit interrupter (AFCI) UL 1699
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Caratterizzazione e metodi di riconoscimento degli arc faults per applicazioni in sistemi di bassa tensione

2013

arc faults detection home protection photovoltaic systems electrical safety series arcs arc fault circuit interrupter (AFCI) UL 1699Settore ING-INF/07 - Misure Elettriche E Elettroniche
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Time domain symmetry parameters analysis for series arc fault detection

2022

This paper presents a feasibility study of exploiting the symmetry of some parameters for series arc fault detection in electrical circuits. The considered parameters are defined in the time domain and they are based on the current signal derivative and the evaluation of cross-correlation between subsequent observation windows. The analysis is carried out for AC systems, starting from an experimental characterization, which has been carried out in accordance with the Standard UL 1699 requirements for "unwanted tripping tests"and "operation inhibition tests"of arc fault circuit interrupters (AFCIs). The results obtained in different load conditions show that the proposed parameters can be us…

series arcsarc faults detectionelectrical safetyUL 1699power system measurementsSettore ING-INF/07 - Misure Elettriche E ElettronicheArc fault circuit interrupter (AFCI)2022 IEEE 12th International Workshop on Applied Measurements for Power Systems (AMPS)
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