Transformer substation (referred to as box type substation) is a compact complete set of distribution equipment that combines high-voltage switchgear distribution transformers, low-voltage switchgear, energy metering equipment, and reactive power compensation devices in one or several boxes according to a certain wiring scheme.
Due to their different structures and uses, box type substations are further divided into YB Prefabricated Substation, ZGS Combination Substation, and landscape type buried box substations. They are commonly used in municipal road light box substations, factory distribution box substations, temporary power box substations and charging stations on construction sites, and new energy box substations in photovoltaic wind power plants.