Research on Short Time Withstand Current Electrodynamic Analysis and Inspection Technology of Mine High Voltage Distribution Device

In this paper, combined with the situation of coal mine safety production in China, the use environment and mechanical interlocking function of mining high-voltage distribution equipment are introduced in detail, the short-circuit fault hazards and the working principle of short-circuit protection are analyzed, and the technical requirements for short-time withstand current capability test are put forward in combination with industry standards. The short-time withstand current capability test system of mining high-voltage distribution equipment is designed, and the working principle of Roche coil current transformer is studied.