[Applications] mainly used in the manufacture or export traders to export electricity to detect electrical products, debugging and precision instruments for power supply. Widely used in home appliances manufacturing, electrical, electronics manufacturing, IT industry, computer equipment, laboratories; electrical, electronics manufacturers such as: switching power supplies, transformers, electronic ballast, AC fan, uninterruptible power systems, chargers, relays, compressors, motors, passive components and other products of the test power; aviation / institutions such as: airport ground facilities, shipbuilding, aerospace, research institutes, such as the test power. [Features] power inverter SPWM sinusoidal pulse width modulation design, with imported Mitsubishi, Siemens or Infineon 1GBT, independent self-drive circuit to promote the development of stable and reliable performance, long life; with the flow, short circuit , overvoltage, undervoltage, overload protection and alarm fault display function, to ensure the safety of electrical equipment and in product power inverter; three-phase power can be adapted to any unbalanced load: main circuit and control circuit according to three independent single-phase power supply design, using LCI structure, three single-phase inverter circuit output difference between each 120 °, three-phase unbalanced voltage does not exceed 1V, independent of each other in the transformer primary electrical output connected into a star, can any one phase Use as a stand-alone single-phase power supply, and can adapt to any unbalanced load; high stability, due to the structure of the double-loop feedback circuit transfer aviation power products development, to ensure that non-linear load inner current waveform distortion. ★ rated power: 3 --- 6400KW single-phase output voltage: 0 --- 300V, three-phase: 0 ☆ --- 520V continuously adjustable output frequency: 50/60/100/200 / 40--70HZ frequency stability : fixed-frequency ± 0.01%, ± 0.1% FM