The YB口-40.5/1.14-10000 series high-voltage pre-installed substation (integrated photovoltaic special box-type transformer) is a new type of compact pre-assembled complete distribution equipment that combines a DC distribution cabinet, inverter, 35kV transformer, high-voltage switchgear, and integrated protection screen into one box. It is configured according to a specific wiring scheme. This substation is used in three-phase AC systems with a rated voltage of 40.5/2X0.315 (or other voltage levels) and a transformer rated capacity of 50kVA or higher. The pre-installed substation is suitable for new construction or renovation of photovoltaic power generation and other renewable energy projects for voltage boosting.