This paper presents a circuit based on the principle of electromagnetic induction to obtain low-voltage low-power DC power supply from high voltage power supply bus. The flexible combination of power supply modules for different space high-voltage applications is a well approach to solve the design problems of space high voltage rectifier block. In normal high voltage rectifier assembly, a lot of the power is lost as it’s moved across China’s enormous terrain. The benefit of UHV lines is that they have dramatically reduced losses.Ultra high voltage multiplier lines successfully transported 172.5 TWh of renewable energy in 2016, or 3.2% of national power consumption. However, 93% of that power came from five lines used for hydropower only.