Centralized control device for control and protective switching devices

A centralized control device for control and protective switching devices belongs to the technical field of automatic motor control. The centralized control device comprises a main control circuit module, a signal sampling module, a keyboard operation module, a state indication module, and an output control module. The signal sampling module inputs feedback signals of a plurality of control and protective switching devices to the main control circuit module, the signals processed by the main control circuit module drive the control and protective switching devices through the output control module, and the working states of all the control and protective switching devices can be set through the keyboard operation module and displayed by the state indication module, thereby realizing centralized control and management on the control and protective switching devices. The main control circuit module includes a main control chip module and an auxiliary chip module, and the auxiliary chip module can be extended to extend the number of controlled control and protective switching devices and realize control and management on a plurality of control and protective switching devices through one centralized control device.