2016 IEEE IAS Electrical Safety Workshop (ESW) 2016
DOI: 10.1109/esw.2016.7499709
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Medium-voltage ARC flash in switchgear and live-front transformers

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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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“…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%
“…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%