Product OverviewThe YB Series European-style prefabricated substation integrates high-voltage switchgear, power transformer, and low-voltage switchgear into a single, factory-built package.    Compact footprint, rapid on-site installation, and low maintenance are combined with a welded-steel framework for superior mechanical strength, weather resistance, and corrosion protection.    All primary and secondary systems are fully pre-assembled and tested before shipment.  With built-in, full-scope data acquisition and analysis, the unit supports remote monitoring and proactive O&M, delivering a reliable, efficient energy-management solution.ApplicationsIdeal for urban grids, residential districts, commercial complexes, industrial & mining enterprises, airports, stations, ports, hospitals, schools, and either temporary or permanent construction sites.    Particularly suited where space is limited, installation time is critical, and supply reliability is essential.Product DescriptionConfiguration: Integrates HV switchgear, power transformer, and LV switchgear into one complete package for indoor or outdoor use.Framework: Welded steel or modular steel panels, finished with special protective coatings for high mechanical strength, weather resistance, and corrosion protection.Thermal barrier: Insulated roof panel prevents condensation from rapid temperature changes; optional side insulation further enhances protection.Factory pre-assembly: Primary and secondary systems are fully wired, tested, and mounted inside a sealed, moisture-proof, corrosion-resistant enclosure for fast on-site installation.Smart O&M: Supports full-scope data acquisition, analytics, and proactive maintenance.  Multiple energy-management scenarios are handled efficiently and conveniently.HV & LV functions: HV side can be equipped with CT, PT, protection relays, and communication devices; LV side is fitted with smart meters supporting remote “measurement, indication, and control.”Key FeaturesComplete package: Integrates HV, transformer, and LV in one compact enclosure—small footprint, low investment, fast installation, and easy maintenance.Aesthetics: Attractive design emphasizing green and eco-friendly concepts.Robust framework: Welded-steel structure delivers high mechanical strength and superior weather resistance.Corrosion protection: Strong anti-corrosion performance; multiple colors and materials available for customization.Internal layouts: “目” and “品” footprint options; corridor or corridor-free designs adapt to different site requirements.Main SpecificationsRated voltage: 6 kV / 10 kV / 35 kVRated current: 630 A / 1 250 ARated short-circuit breaking current: 20 kA / 25 kA / 31.5 kAFrequency: 50 HzCapacity range: 50 kVA – 2 500 kVAApplicable StandardsGB/T 17467 High-voltage/low-voltage prefabricated substationsIEC 62271-202 High-voltage switchgear and controlgear – Part 202: HV/LV prefabricated substationsGB 7251 Low-voltage switchgear and controlgear assembliesGB 1094 Power transformersJB/T 10088 Sound levels for 6 kV–220 kV power transformers