MTT series on-line intelligent digital UPS congregates the essence of Baykee technology and entirely broke the bottleneck technology in traditional simulation circuit era. It adopts the digital control technology, of which the core is high-speed MCU and CPLD and takes the sixth generation low-exhaust and big-power IGBT and static switch as power components. Guided by these most advanced technologies in the world, it is really the first class product MTT series UPS also adopt 4 layer PCB and larger power. The capacity can be from 10~400KVA, widely applied in the telecommunication, bank, stock exchange center, transportation, electricity, industry etc.