Outdoor Prefabricated Substation (European Style)

• Altitude: Not exceeding 1000m.

• Ambient temperature: -25°C to +40°C.

• Relative humidity: Daily average ≤ 95%, monthly average ≤ 90%.

• Installation site: Free from fire/explosion hazards, conductive dust, chemically corrosive gases, and severe vibration. For conditions beyond the above, consult the manufacturer.

•Integrated design combining high-voltage switchgear, transformer, and low-voltage switchgear for complete functionality.

•Comprehensive high/low-voltage protection ensures safe/reliable operation with simple maintenance.

•Compact footprint, cost-effectiveness, short production lead time, and easy relocation.

•Flexible and diverse wiring schemes.

•Unique structure: Double-layer (composite panel) honeycomb shell provides robust insulation, ventilation, heat dissipation, aesthetics, and high protection rating. Optional shell materials: stainless steel, titanium alloy, aluminum alloy, cold-rolled steel, color-coated plate.

•Multiple configurations: General-purpose, villa-type, compact, etc.

•Ring Main Unit (RMU) can be equipped with Feeder Terminal Unit (FTU) for reliable short-circuit/single-phase ground fault detection, supporting "four-remote" functions for distribution automation.

Transformer

•Utilizes low-loss, oil-immersed, fully sealed S9/S10/S11 series transformers or eco-friendly dry-type transformers (resin-insulated/NOMEX paper-insulated). Optional under-carriage allows easy transformer movement.

High-Voltage Side

•Protected by load switch-fuse combinations. Three-phase tripping upon single-phase fuse operation. Load switch options: pneumatic, vacuum, SF6. Motorized operation enables automation. Current-limiting fuses with strikers ensure reliable high-breaking-capacity protection. For transformers >800kVA, vacuum circuit breakers (e.g., OCE4/OCE2/OCE1) are available.

Low-Voltage Side

•Main switch: Conventional or smart circuit breaker with selective protection.

•Outgoing switches: Compact molded-case circuit breakers (up to 30 circuits) with short arcing distance.

•Automatic reactive power compensation: Contact or contactless switching options.

Substation Structure Diagram

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