The EU Standard Outdoor 11kV 800kVA 11/0.4kV Compact Transformer Substation, also referred to as a pre-installed substation, is designed to comply with European standards and is part of the YB series. This cutting-edge, space-efficient power solution integrates high-voltage switchgear, transformers, and low-voltage distribution equipment into a single, sealed, compact enclosure. It is ideal for various medium-voltage power distribution applications in settings such as residential areas, commercial centers, industrial zones, infrastructure projects, and remote locations.
EU Standard Outdoor 11kV 800kVA 11/0.4kV Compact Transformer Substation
These compact substations are engineered for rapid deployment, enhanced safety, minimal maintenance, and space-saving efficiency. Their all-in-one design ensures easy integration into power systems with support for voltage levels ranging from 6kV to 35kV and transformer capacities from 30kVA to 2500kVA.
Product Features
Space-Efficient Design: Modular pre-installed configuration minimizes floor area while simplifying installation.
Compliant with European Standards: Built in accordance with IEC and EU energy distribution regulations.
Fully Enclosed Structure: Features IP33 protection, ensuring reliable operation in outdoor environments.
Safety and Reliability: Designed to withstand short circuits, overloading, and harsh operational conditions.
Customizable Voltage and Capacity: Available in various voltage combinations, tap ranges, and connection options.
Flexible Installation Options: Suitable for urban, industrial, and remote locations.
Eco-Friendly Performance: Low noise emissions, minimal temperature rise, and reduced maintenance.
Detailed Technical Specifications
High Voltage Chamber
Description
Unit
Value
Rated Frequency
Hz
50
Nominal Voltage
kV
6 / 10 / 35
Maximum Operating Voltage
kV
6.9 / 12 / 40.5
Rated Current
A
400, 630, 1250
Transfer Current
A
1200 – 2000
Rated Short-Time Current
kA
12.5 (2s/4s), 16 (2s/4s), 20 (2s/4s)
Rated Peak Withstand Current
kA
31.5 / 40 / 50
Power Frequency Withstand Voltage
kV
32/36, 42/48, 95/118
Lightning Impulse Withstand Voltage
kV
60/70, 75/85, 185/215
Rated Short-Circuit Breaking Current (Fuse)
kA
31.5
Switch Off No-Load Transformer Capacity
kVA
2500
Transformer
Description
Unit
Value
Rated Capacity
kVA
30 – 2500
Tap Range
%
±2×2.5%, ±5%
Vector Group
–
Yyn0 / Dyn11
Impedance Voltage
%
4 / 4.5 / 6 / 8
Nominal Voltage
V
220 / 380 / 690 / 800
Low Voltage Chamber
Description
Unit
Value
Rated Current of Main Loop
A
50 – 4000
Branch Current
A
5 – 800
Rated Short-Time Withstand Current
kA
15 / 30 / 50 / 65 (1s)
Rated Peak Withstand Current
kA
30 / 63 / 110
Enclosure
Description
Unit
Value
Protection Class
–
IP33 (standard)
Noise Level
dB
≤50
Enclosure Temperature Rise
–
≤10K
Working Conditions
Condition
Specification
Altitude
≤2000m
Ambient Temperature
Max: +40°C, Min: -45°C
High Monthly Average Temperature
+30°C
High Annual Average Temperature
+20°C
Installation Environment
No explosive gas, dust, or corrosive substances; stable ground
Submersion
Allowed temporarily under water
Earthquake Resistance
Horizontal ≤3m/s², Vertical ≤1.5m/s²
Voltage Waveform
Approximate sine wave
Power Supply Balance
Suitable for symmetric three-phase supply
Application Scenarios
The EU Standard Compact Substation is designed for various power distribution environments:
Urban Power Grids: Perfect for densely populated areas requiring efficient and quiet power systems.
Industrial Parks: Supports heavy machinery and ensures uninterrupted power supply.
Commercial Buildings: Ideal for malls, office towers, and hospitality venues.
Remote and Harsh Environments: Performs reliably in remote towns, offshore sites, and high-altitude regions.
Renewable Energy Systems: Integrated with solar and wind power solutions for efficient grid injection.
Advantages
Rapid Deployment: Delivered pre-assembled, reducing field installation time.
Compact Footprint: The compact design minimizes space usage and project costs.
Ease of Maintenance: Modular construction with accessible compartments simplifies servicing.
Enhanced Safety: Separate compartments for HV, LV, and transformer rooms reduce risks such as arc flash.
Customization Options: Tailored for different capacities, voltages, and climate resistance.
Why Choose Our 11kV 800kVA Compact Substation?
Compliance: Fully compliant with both international and European standards.
Versatility: Capable of scalable capacities from 30kVA to 2500kVA.
Proven Reliability: Known for stable performance and efficiency in a variety of environments.
Comprehensive Support: From initial planning and installation to commissioning and after-sales service.
