Product Overview
The Prefabricated Box-Type Substation (referred to as box-type substation) is a factory-prefabricated, compact power distribution device integrating high-voltage switchgear, distribution transformer, and low-voltage distribution equipment. Suitable for three-phase 50Hz, 6kV–35kV indoor/outdoor power distribution scenarios, its core functions include voltage transformation, power distribution, protection, and monitoring. It is widely used in residential communities, industrial parks, new energy power stations, urban public power distribution, and other fields.
The product features a fully enclosed steel structure enclosure with three compartments: high-voltage room, transformer room, and low-voltage room. It uses high-quality components, complies with standards such as GB/T 17467, and has passed CCC certification. Advantages include small footprint, fast installation, and reliable operation. Parameters, layout, and protection ratings can be customized to suit various power distribution scenarios.

Operating Environment
1. Ambient Temperature: Indoor: -20°C to +45°C; Outdoor: -40°C to +45°C; 24h average ≤ +35°C. Suitable for high and low temperature conditions.
2. Altitude: ≤1000m (customizable up to 3000m for special conditions), with optimized insulation and heat dissipation performance.
3. Relative Humidity: ≤95% at +25°C; enclosure equipped with anti-condensation and sealed moisture-proof devices, suitable for humid and foggy environments.
4. Installation Sites: Indoors: suitable for distribution rooms; Outdoors: suitable for open, flat areas, free from vibration, corrosive gases, and flammable/explosive materials.
5. Protection Rating: Indoor IP33–IP44; Outdoor IP54–IP65 (customizable anti-pollution and anti-corrosion types); pollution degree ≤ IV.
6. Installation Requirements: Horizontal installation on a level and solid foundation with reserved maintenance space; standardized wiring, reliable grounding, and keep away from strong electromagnetic interference.
Technical Parameters
Item | Unit | Parameters |
|---|---|---|
Rated Voltage | kV | High voltage side: 6, 10, 35 (commonly used); Low voltage side: 0.4; customizable |
Rated Capacity | kVA | 100, 200, 315, 500, 800, 1000 (full series, customizable) |
Transformer Type | --- | Oil-immersed / Dry-type (epoxy resin cast); Dyn11 connection group preferred |
Insulation Level | kV | High voltage side: lightning impulse ≥95kV, power frequency withstand ≥42kV; reliable insulation |
Enclosure Material | --- | High-quality cold-rolled steel / stainless steel; anti-corrosion coated; waterproof and dustproof |
Protection Rating | --- | Indoor IP33–IP44; Outdoor IP54–IP65 (customizable anti-pollution, anti-corrosion types) |
Product Features
1. High Integration, Extremely Small Footprint: Integrates transformation, distribution, and protection; factory prefabricated; footprint only 1/10 of traditional civil substations, saving land resources.
2. Convenient Installation, Extremely Short Cycle: Integral transport and on-site lifting; installation and commissioning in only 3–7 days, greatly shortening construction time and enabling rapid deployment.
3. Reliable Operation, Excellent Protection: High-quality components + fully enclosed enclosure; moisture-proof, dustproof, and anti-corrosion; built-in multiple protections with no safety hazards; suitable for harsh conditions.
4. Energy Efficient, Extremely Low Losses: Low-loss transformer selected; low self-consumption, high power conversion efficiency; significant energy savings over long-term operation.
5. Flexible Layout, Strong Customizability: Customizable enclosure layout, capacity, and protection rating to suit different scenarios and load requirements; supports intelligent upgrades.
6. Attractive Appearance, Simple O&M: Enclosure with spray coating, neat design; routine inspection only; low operation and maintenance costs.
7. Safe, Environmentally Friendly, Widely Adaptable: No oil leakage pollution; complies with environmental standards; suitable for residential communities, industrial parks, new energy, and many other scenarios.
Our Advantages
1. Strong customization capability: capacity, layout, protection, and intelligent functions can be customized to meet special requirements of various power distribution scenarios.
2. Standardized production with full-process quality control; each unit comes with a factory test report; strict selection of components ensures stable and reliable performance.
3. Full certification, compliant with national standards; materials and processes meet requirements; satisfies acceptance criteria for various projects.
4. Reliable delivery, support for urgent orders; includes on-site installation and commissioning guidance to ensure rapid deployment.
5. Comprehensive after-sales service with full lifecycle support; provides fault diagnosis, component replacement, and O&M guidance with fast response.
Ordering Guide
Please provide the following information to ensure the product accurately meets your requirements:
1. Specify high voltage side / low voltage side rated voltage, rated capacity, and transformer type (oil-immersed/dry-type).
2. Describe the installation environment (indoor/outdoor) and pollution degree; specify whether anti-corrosion, anti-pollution, or plateau type is required.
3. Determine enclosure layout and external dimensions; specify whether additional functions such as intelligent monitoring or remote control are needed.
4. Provide installation site conditions and foundation dimensions, and indicate whether supporting installation accessories and lifting services are required.
5. Describe the application scenario and load type; specify whether enhanced protection or special protection requirements are needed.

