Relay verification system

The utility model discloses a relay verification system which comprises a power supply module, a three-terminal regulator, a single-chip microcomputer, an A/D converter, a digital voltage regulator, acurrent/voltage measurement module, a port module and an HMI human-computer interaction interface. The power supply module is used for being externally connected with 220V alternating current and providing a power supply for the relay calibration system. The three-terminal voltage stabilizing device is arranged between the power supply module and the port module; the single-chip microcomputer communicates with the voltage/current measurement module, the HMI human-computer interaction interface and the power supply module in a serial communication mode. The A/D converter is arranged between the voltage/current measuring module and the single-chip microcomputer. According to the embodiment of the utility model, a plurality of relay parameters can be automatically and rapidly measured, whichis convenient and rapid.