Large-power bidirectional enforced drainage electric power apparatus

The invention discloses a large-power bidirectional enforced drainage electric power apparatus, comprising an MCU (microprogrammed control unit) singlechip as well as a low-current output unit, a positive polarity output triggering unit, a negative polarity output triggering unit, a data collection isolation conversion module, a foreign communication interface, a keyboard and operation switch, a liquid crystal display and an acousto-optic alarming device which are connected with the MCU singlechip respectively, wherein the positive polarity output triggering unit and the negative polarity output triggering unit are respectively connected with a constant-potential current transformer of a rectifying circuit; the low-current output unit is connected with the commutation circuit of the rectifying circuit; the data collection isolation conversion module is connected with an anti-thunder direct current interference resisting unit of the rectifying circuit. The large-power bidirectional enforced drainage electric power apparatus has the beneficial effects that the power of the drainage electric power apparatus is greatly improved, and constant potential control range is greatly enlarged; the apparatus has standby monitoring and automatic triggering starting functions; the polarity of the output voltage can be automatically transformed along with the polarity of a ground potential; the apparatus has an intelligenization function and is strong in interference capability.