Power system fault indicator circuit based on Internet of Things

The utility model relates to the technical field of the Internet of Things, and discloses a power system fault indicator circuit based on the Internet of Things, so as to ensure the intelligence, stability and convenience of a turnover reset mechanism. The circuit provided by the utility model comprises a sampling circuit provided with a current transformer; the single-chip microcomputer is used for monitoring the real-time state of line operation and instructing the card turning reset circuit to perform card turning processing after a fault is judged; and performing reset processing accordingto the corresponding instruction after the card turning processing. Tile flipping reset circuit, two NPN triodes Q4 and Q8 and two PNP triodes Q5 and Q7 form an H bridge type control circuit. And thetriodes Q4 and Q7 are positioned at one end of the card turning reset coil, and the triodes Q5 and Q8 are positioned at the other end of the card turning reset coil, so that when the triodes Q5 and Q4 are conducted, the curre