Alarm device of insulation on-line monitoring system

The utility model discloses an alarm device of an insulation on-line monitoring system, which comprises an outer shell, heat dissipation nets are respectively embedded on two sides of the outer shell, an opening and closing door is rotatably arranged on the front end face of the outer shell through a hinge, a sliding groove is fixed on the lower end face of the inner wall of the outer shell, a sliding strip is sleeved and inserted in an inner cavity of the sliding groove, and a mounting seat is fixed on the upper end face of the sliding strip. Supporting plates are fixed to the two sides of the mounting base respectively, compression springs are fixed to the inner walls of the supporting plates, and clamping plates are fixed to the extension ends of the compression springs. According to the utility model, when the insulation monitoring module monitors an accident, the insulation monitoring module can send information to the central control board, so that the central control board controls the telescopic end o