Arc Fault Recognition Method Based on Current Characteristics of Electrical Equipment

In order to detect arc fault in line, an arc fault identification algorithm is proposed. The current waveform of common household and office appliances in normal operation and the current waveform of arc fault and point contact arc fault in its branch are tested. The information dimension of current phase plane diagram is calculated based on fractal theory, and the arc fault identification model. Phase space reconstruction of current waveform, The Information Dimensions of Current Phase Plane Based on Fractal Theory is considered as one of the characteristics of arc fault identification, then the current zero-off time is taken as the second characteristic, the arc fault identification model based on SVM is established. The simulation result shows that: the proposed algorithm can effectively identify arc fault and provide a reference for the development of a new type of AFCI with fault location function.