Line lightning arrester fault state alarm device

The utility model belongs to the technical field of power transmission and distribution on-line monitoring, and particularly relates to a line lightning arrester fault state alarm device, which comprises a current sensor, and an impact current driving circuit board, a counting dial rotating mechanism and a fault indicating dial rotating mechanism which are arranged in the same cylindrical shell, a fault indicating dial of the fault indicating dial rotating mechanism faces the outside of the cylinder; the current sensor, the impact current driving circuit board and the counting dial plate rotating mechanism are electrically connected, and the rotating angle of the fault indicating dial plate rotating mechanism is associated with the action times of the counting dial plate rotating mechanism. The device is simple in structure, can accurately display the fault state of the line lightning arrester visible to naked eyes without power failure and pole-climbing operation of an inspector, improves the line inspection