European-style box-type substation mainly adopts a "目" shaped structure, integrating high-voltage and low-voltage switchgear with the transformer into one outdoor enclosure. Not only is the internal layout clear, but it also integrates many components such as conventional medium-voltage switchgear, ring main unit, low-voltage cabinet and transformer. Generally, dry-type transformers (a few use oil-immersed) are adopted, featuring advanced and reliable technology, factory prefabrication, high degree of automation, and flexible combination methods.
High-voltage schemes include split-type circuit breaker, integrated circuit breaker, gas-filled components, gas-filled cabinet and other options to meet various customer needs. Generally, dry-type transformers (a few use oil-immersed) are adopted, with reasonable protective structure, dust-proof structure and low-temperature resistance, anti-exposure, anti-corrosion, anti-sand, rain-proof, and can meet the requirements of safe operation in harsh environments. Advanced and reliable technology, factory batch production, high degree of automation, flexible combination methods and other characteristics.
