Relay combination interface parameter monitoring device

The utility model provides a relay combination interface parameter monitoring device, which comprises four acquisition modules and a master control module, the four acquisition modules are respectively a first voltage acquisition module, a second voltage acquisition module, a current acquisition module and a switching value acquisition module, the acquisition modules are used for acquiring parameter data of an alternating current five-wire system relay combination circuit, and the master control module is used for monitoring the parameter data of the alternating current five-wire system relay combination circuit. And the main control module drives the four acquisition modules to synchronously perform respective acquisition work on parameter data through sampling clock signals. Therefore, the four acquisition modules are integrated into one master control module, and sampling control is performed by one sampling clock signal, so that the problem of insufficient installation space of the acquisition module for