YB Series European-Type Prefabricated Substation – 12kV Outdoor Compact Transformer Box Substation for Residential and Industrial Power Distribution
The YB series is a high-performance European-type prefabricated substation designed for 12kV (10kV) three-phase AC power systems. This compact, outdoor solution integrates high-voltage switchgear, a power transformer, and low-voltage distribution devices into a single, weather-resistant enclosure. Featuring independent compartments for each functional unit, the substation is equipped with a sloped roof for rain protection and built-in ventilation louvers for efficient thermal management. With its small footprint, aesthetic green finish, and prominent high-voltage safety warnings, the YB series is the premier choice for urban utility grids, residential neighborhoods, and industrial parks seeking a secure, pre-installed power conversion solution.
YB Series European-Type Prefabricated Substation (12kV Compact Box Transformer)
Product Overview
The YB series is a high-performance European-type prefabricated substation designed for 12kV (10kV) three-phase AC power systems. This compact, outdoor solution integrates high-voltage switchgear, a power transformer, and low-voltage distribution devices into a single, factory-assembled, weather-resistant enclosure. It is engineered to provide a safe, reliable, and space-saving power conversion solution for modern urban and industrial infrastructure.
Core Features & Technical Advantages
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Integrated 3-Compartment Design: Features independent, factory-separated compartments for the High-Voltage Room, Transformer Room (Transformer Compartment), and Low-Voltage Room to ensure operational safety.
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All-Weather Outdoor Protection: Built with a durable, anti-corrosive industrial green shell and a sloped roof design to effectively prevent rain accumulation and environmental wear.
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Efficient Thermal Management: Equipped with multiple built-in ventilation louvers on the access doors to facilitate natural air convection, maintaining optimal temperatures for the internal transformer.
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Enhanced Public Safety: Each functional compartment is fitted with prominent yellow triangular “High Voltage Danger” (High Voltage Danger) warning signs to prevent unauthorized access.
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Space-Saving Aesthetic: The compact “box-type” structure requires significantly less land than traditional substations and is designed to blend seamlessly into residential green belts and urban landscapes.
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Standardized 12kV Reliability: Optimized for stable power conversion from 10kV or 12kV utility grids to standard user-level voltages (380V/220V).
Technical Specifications
| Item | Description |
| Model | YB Series (European Type) |
| Rated Voltage | 12kV / 10kV |
| Secondary Voltage | 0.4kV (400V) / 230V |
| Structure Type | Prefabricated Outdoor Box Substation |
| Cooling Method | Natural Air Ventilation (Louvers) |
| Application | Urban Utility, Residential Areas, and Industrial Parks |
Selection details for YB Series European-Type Prefabricated Substation
To confirm the required outdoor distribution equipment configuration for your project, include:
- System voltage, continuous current, switching/protection function and fault level
- Mounting arrangement, control/protection requirements and site layout
- Outdoor operating conditions, available space, quantities and destination country
Drawings and quotation requirements
Send the model reference, application, quantity and destination country together with the relevant drawing or existing equipment information. Confirm the selected configuration against a model-specific drawing and ratings sheet before ordering; request the applicable test documentation for your project requirements.
Request model confirmation and a technical quotation · Compare related Outdoor High-Voltage Switchgear.
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