BEHAVIOR OF LOW-FREQUENCY SPECTRA DURING ARCING FAULT AND SWITCHING EVENTS
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Distribution feeder faults modulate primary current and generate noise through arcing phenomena. The variation and behaviour of selected low frequencies during fault conditions are herein presented. These are contrasted to normal events such as feeder switching and capacitor bank operations. Recorded field data has been analyzed and is statistically presented in the paper. Specific behaviour characteristics such as arc duration, arc repetition rate, and magnitude of low frequency spectra are presented. Comparisions are made for different soil types and conditions. 1988 IEEE