Product Overview
The outdoor compact substation, also known as the European-style package substation or prefabricated substation, is a fully integrated power distribution solution that combines high-voltage switchgear, power transformer, and low-voltage switchgear within a single, weatherproof enclosure. This modular design is pre-assembled, factory-tested, and ready for rapid deployment in outdoor environments.
Originating from European design standards, this substation type features a three-compartment layout with separate enclosures for the high-voltage section, transformer section, and low-voltage section, all housed within a common outer shell. The compact footprint and aesthetically pleasing appearance make it an ideal choice for urban power distribution, residential communities, commercial complexes, and industrial facilities where space is limited and fast installation is required.

Key Features
1. Integrated Three-Compartment Design
The substation consists of three independent functional compartments: high-voltage switchgear room, transformer room, and low-voltage switchgear room. Each compartment is separated by metal partitions with proper ventilation and access for safe operation and maintenance. The modular layout ensures clear separation of functions and simplifies fault isolation.
2. Compact Footprint & Aesthetic Appearance
The integrated design significantly reduces overall dimensions compared to traditional substation buildings. The enclosure features a modern, streamlined appearance with customizable colors and finishes to blend with surrounding urban environments. This makes it particularly suitable for city centers, residential districts, and tourist areas where visual impact is a concern.
3. Weatherproof & Corrosion-Resistant Enclosure
The outer shell is constructed from high-quality steel plates with advanced anti-corrosion treatment, providing excellent protection against rain, dust, UV radiation, and extreme temperatures. The enclosure meets IP54 or higher ingress protection standards, ensuring reliable operation in harsh outdoor conditions. Thermal insulation materials are applied to maintain stable internal temperatures.
4. High Safety & Reliability
The high-voltage compartment is equipped with load-break switches, fuse-switch combinations, or vacuum circuit breakers with comprehensive interlocking mechanisms to prevent operational errors. The transformer room is fitted with temperature monitoring and forced air cooling systems for overload protection. Low-voltage compartments include main circuit breakers, distribution feeders, and automatic transfer switches for standby power integration.
5. Low Loss & Energy-Efficient Transformer
The built-in power transformer is available in oil-immersed (ONAN) or dry-type (AN/AF) designs, with core materials ranging from cold-rolled silicon steel to amorphous alloy for optimal energy efficiency. The transformer meets national Energy Efficiency Grade 1, 2, or 3 standards, significantly reducing operational losses and carbon footprint.
6. Flexible Metering & Smart Monitoring
The substation supports various metering configurations including high-voltage metering, low-voltage metering, or combined metering solutions. Optional smart monitoring systems provide real-time data acquisition of voltage, current, power factor, and energy consumption. Remote communication capabilities enable integration with SCADA systems for centralized control and fault diagnostics.
7. Fast Installation & Easy Relocation
The factory-assembled and pre-tested design eliminates the need for on-site construction of individual components. Only foundation work and cable connections are required on-site, reducing installation time to days rather than weeks. The modular structure allows for future relocation if site conditions change.

Technical Specifications
Rated Power: 100kVA to 2,500kVA (customizable)
HV Voltage: 6kV, 10kV, 10.5kV, 11kV, 20kV, 35kV
LV Voltage: 0.4kV, 0.415kV, 0.433kV, 0.69kV
Transformer Type: Oil-immersed or dry-type (customizable)
Vector Group: Dyn11, Yyn0 (customizable)
Tapping Range: ±5% or ±2×2.5% (customizable)
Short-Circuit Impedance: 4% to 6% (depending on capacity)
Frequency: 50Hz or 60Hz
Enclosure Protection Rating: IP54 or higher
Enclosure Material: High-strength steel plate with anti-corrosion coating
High-Voltage Switchgear: Load-break switch, fuse-switch combination, or vacuum circuit breaker
Low-Voltage Switchgear: Main circuit breaker, distribution feeders, metering system
Cooling Method: ONAN (oil-immersed) or AN/AF (dry-type)
Noise Level: Below international and national standards

Applications
Urban power distribution for city centers, commercial districts, and residential communities. Infrastructure projects including airports, railway stations, ports, and highways. Industrial facilities such as manufacturing plants, mining sites, and construction projects. Public utilities including schools, hospitals, municipal buildings, and street lighting systems. Renewable energy applications including solar farms, wind power plants, and energy storage systems. Temporary power supply for construction sites and emergency response scenarios.
Compliance Standards
IEC 62271 Series for high-voltage switchgear, IEC 60076 Series for power transformers, GB 1094 Power Transformers, GB/T 17467 Prefabricated Substations, GB 20052-2020 Energy Efficiency Limits and Energy Efficiency Grades for Power Transformers, and DL/T 537 Design Specifications for Outdoor Package Substations.

Why Choose Us
Years of manufacturing experience and technical expertise in compact substation production ensure reliable quality and performance. Full-process quality control with rigorous factory testing including dielectric tests, mechanical operation tests, and protection relay calibration. Flexible customization options for capacity, voltage levels, switchgear configurations, and metering schemes. Cost-effective solutions without compromising quality through optimized design and efficient production processes. Professional technical support for site survey, foundation design, and installation guidance. Comprehensive after-sales service including commissioning assistance, spare parts supply, and long-term maintenance support. Quick delivery and prompt response to customer inquiries.