Medium-voltage ARC flash in switchgear and live-front transformers

Eblen, Marcia L.; Short, T.A.; Lee, Wei-Jen

doi:10.1109/esw.2016.7499709

Cited by 2 publications

(2 citation statements)

References 3 publications

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“…Switchgears can fault due to continuous degradation of certain sections, including insulators, connectors and switches [5]. In their early stages, switchgear issues such as surface discharge and corona faults produce distinguishable sonic waves in an ultrasonic frequency range (20 kHz to 100 kHz) [6]. Failures as such are visually difficult to detect, but the generated noise can be identified using related ultrasonic identification mechanisms [7].…”

Section: Introductionmentioning

confidence: 99%

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Arcing Faults Detection in Switchgear with Extreme Learning Machine

Ishak

Koh

Tan

et al. 2022

J. Phys.: Conf. Ser.

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The robustness of switchgears has critical impacts on the general efficiency of power distribution systems. Faulty switchgears lead to many unwanted complications for utility bodies, which in turn lead to even bigger issues. In this paper, a remote arcing fault sensing technique is proposed using ELM. By analysing the sonic waves emitted, the proposed method is capable to detect possible arcing faults in switchgears. Tests and experiments have been conducted to investigate the performance of the proposed algorithm in detecting these arcing faults. The obtained results are analysed in time and frequency domains. In the time domain analysis, the results show 93.75% success rate in training stage, 95.83% in validation stage, and 87.5% in testing stage. In the frequency domain analysis, the results show 93.75% success rate in training stage, 91.67% in validation stage, and 100% success rate in testing stage. It is thus concluded that the proposed algorithm is capable to identify arcing faults in switchgears.

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Section: Introductionmentioning

confidence: 99%

“…Immediate corrective action is needed upon detection of arcing fault [12] as it can cause serious damage to devices or equipment functions and attending personals. Electrical arcs can cause connectors meltdown, insulation breakdown, and even fires in certain cases [13]. Arcing faults produce a specific sonic wave pattern [14].…”

Section: Introductionmentioning

confidence: 99%