Introduction Shenzhen Hills Castle Series C6K (S) ~ 3C20KS pure-line double conversion architecture, is the most effective solution to the problem of all power architecture design, the grid appears: power outages, mains voltage is too high or too low, the voltage transient Drop or decrease shock, high-voltage pulse, voltage fluctuations, surges, harmonic distortion, clutter, frequency fluctuations and other conditions can provide a good solution for the user load to provide safe and reliable power protection. Technical parameters