本文介绍了采用高性能16位单片机实现的新型备用电源自动投入和系统自动恢复方案，该方案软件自动跟踪和判断系统的运行方式，具有自适应功能。不仅可实现常规备用电源自动投入的功能，还可实现系统的自动恢复。两种通讯口（RS232和RS485）既可与PC机连接．又可方便联网实现遥测、遥信、遥控等三遥功能。另外，有压无压采用新型带电显示装置接点判断。为变电部向小型化、无油化和实现综合自动化及真正实现无人值班创造了条件。 This paper introduces a new high-performance 16-bit microcomputer to achieve a new standby power automatic input and system recovery program, the program automatically tracks and determine the system software operation mode, with adaptive functions. Not only can realize the function that the regular standby power inputs automatically, but also can realize the automatic recovery of the system. Two communication ports (RS232 and RS485) can be connected with the PC. But also easy networking to achieve telemetry, remote communications, remote control and other three remote functions. In addition, the pressure without pressure using the new charged display device contact judgment. For the substation to miniaturization, non-oil and to achieve comprehensive automation and truly create unmanned conditions.