Research on the Frequency Spectrum of Electric Bicycle DC Fault Arc

This paper presents a new perspective of protection for electric fire in electric bicycles, which is called DC fault arc. This protection scheme is implemented as a part of electrical fire protection device, known as electrical fire protection device. In addition to the conventional protection of short circuit in the electric bicycle, the proposed perspective extends the protection to the arc fault, which perform more important role in the source of fire in this vehicle. Since direct fault arc current is lower than the normal current value, it cannot be discovered by over-current protection. Thus we develop the new perspective of analyzing the frequency spectrum of the current, to obtain the method of detecting arc fault in electric bicycles.