YFGZ2 series DC power supply cabinets (microcomputer controlled) are widely applied to large/middle and small scale power plants and transformer substations, used as DC power supply for HV switch making/breaking, relaying, automatic control, emergency lighting and light/sound signal in normal condition or emergency state; also can be applied to fields like metallurgy, railway, mine, petrochemical, posts and telecommunications, communication, medical health, bank, hotel, high-rise, computer network, etc; the microcomputer controlled DC power supply cabinets are useful for power plants, transformer substations and other industries that require unmanned control and remote centralized monitoring. The product is in accordance with JB/T5777.4-2000 General specification and safety requirements for DC power supply equipment of power projects.