SET for photovoltaic power Power stations with input to direct current, high-frequency interference filter, sinusoidal filter, choke and mains high-frequency interference filter. In the case of synchronous operation of the inverters, it is possible to supply a three-phase sine filter consisting of three single-phase chokes. Sinusoidal filter resistant to PWM sinus voltage converter. Choke has the task of reducing the hardness and maintaining stability between the LV networks and the solar power plant. The high-frequency interference filter limits the amount of high-frequency interference to the grid supply system from the inverter.