Analysis and Diagnosis Scheme of Parallel Arc Failure in DC Power Lines

초록

The arc phenomena usually relate to the undesired ejection of two electric conductors. The emission power discharge from an arc event might wrath the electrical lines and cause a fire. Numerous studies were proposed to detect arc events and isolate them in time. The DC arc faults are sorted into two common types: series and parallel arcs. Due to corrupting contamination or insulation, a parallel arc occurs between two electrical wiring. The parallel arc currents of the system can be considerably amplified compared with the series type. In this research, the characteristic behaviors of the system in both time and frequency domains are studied during DC parallel arc failures, and arc energy was also discussed and analyzed. The unique behaviors are adopted to identify parallel arcs in different conditions. Sorting electrical arcs that are beneficial and trustworthy for the judicial procedure and deciding the protection schemes. The analyzed process is based on different domains of load current, source current, and arc voltage.

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