Sustainable Mining and Metallurgy

Taking the distributed photovoltaic power generation project with installed capacity of 36MWp as an example, this paper introduced the available access voltage level scheme, and according to the influence of distributed photovoltaic power supply access to the distribution network on the voltage rise of the grid connection point, 10kV voltage level was selected to connect to the grid, and a distributed power supply access system scheme was given, and the conductor cross section was verified. Finally, combined with the actual work, the primary design points of distributed photovoltaic power supply were summarized, including the main wiring design，the selection of high voltage side fuse and low voltage side circuit breaker.