Current monitoring device of electric coal mining machine for coal mine

A current monitoring device of an electric coal mining machine for a coal mine comprises a power supply module, a current transformer, a single-chip microcomputer module, a GPRS module, an over-current detection circuit, a low-current detection circuit, a rectification circuit and a control circuit. The power supply module, the current transformer, the single-chip microcomputer module, the GPRS module, the over-current detection circuit, the low-current detection circuit, the rectification circuit and the control circuit are installed in the electric cabinet and are electrically connected. According to the utility model, whether the working current of the motor of the coal mining machine is too high or too low can be detected in real time, after the far-end management end receives classification data, subsequent workers can conveniently and clearly classify the classification data for statistical query, the working efficiency is improved, convenience is brought to the workers, and the working efficiency is im