Compact integrated design, factory pre-assembled & pre-tested
Short on-site installation period, quick commissioning
Small footprint, flexible layout, easy relocation
Fully enclosed structure, strong protection against dust, rain and corrosion
Low noise, safe and reliable operation, less maintenance
Modular configuration, customizable capacity and functions
Built-in fire protection, monitoring and interlock protection system
Adapt to various harsh environments, wide application scenarios
Reduce civil construction cost, save project investment
1. Product Overview
The prefabricated cabin-type substation is an integrated, modular, and fully factory-assembled power distribution solution tailored for modern power grid construction and industrial power supply needs. Different from traditional on-site built substations that require long-term construction, complex wiring and on-site debugging, this product integrates medium and high voltage switchgear, distribution transformer, low voltage power distribution cabinet, intelligent control and protection system, as well as supporting fire protection, ventilation, heat dissipation, monitoring and lighting systems into a standardized steel cabin structure.
All internal equipment completes assembly, wiring, insulation testing, system debugging and performance verification in the factory. After being transported to the project site as a whole, it only needs foundation fixing, cable connection and simple commissioning to be put into formal operation. With compact structure, strong environmental adaptability and short project cycle, it effectively solves the problems of large floor area, long construction period and unstable on-site construction quality of traditional substations, and is widely recognized as a mature and efficient power distribution equipment for fixed and temporary power supply scenarios.
2. Core Product Parameters
The parameters of prefabricated cabin-type substations can be flexibly customized according to user project requirements and grid standards. The mainstream universal technical parameters are listed in the table below, covering conventional voltage levels, capacity ranges and environmental adaptation indicators.
Parameter Item | Technical Specification |
Rated Medium/High Voltage Level | 10kV / 24kV / 35kV (customizable) |
Rated Low Voltage Output | 0.4kV |
Power Frequency | 50Hz / 60Hz optional |
Transformer Capacity Range | 50kVA - 2500kVA (custom expansion available) |
Cabin Protection Grade | IP33 - IP54 (IP54 standard for outdoor heavy-duty type) |
Operating Ambient Temperature | -25℃ to +40℃ |
Altitude Adaptation | ≤2000m (high altitude customized version optional) |
Transformer Cooling Mode | ONAN oil-immersed cooling / dry-type natural air cooling |
Voltage Regulation Range | ±2×2.5% / ±5% adjustable |
Overall Dimension | Standard 20ft/40ft container size or customized non-standard size |
Overall Weight | 12000kg - 35000kg (varies with configuration) |
3. Product Core Features
3.1 Factory Pre-assembly & Fast On-site Deployment
The whole machine is fully assembled and debugged in the factory, with complete internal wiring and system matching. On-site construction eliminates a large number of complex processes such as equipment hoisting, secondary wiring and system debugging. The on-site installation and commissioning cycle can be shortened to 1-3 days, which greatly accelerates the overall progress of power supply projects, especially suitable for projects with tight construction schedules.
3.2 Compact Structure & Space Saving
The modular integrated design optimizes the layout of high voltage, low voltage, transformer and control functional areas without redundant structural space. Compared with traditional brick-concrete substations of the same capacity, the floor area is reduced by more than 60%. It can adapt to narrow installation spaces such as urban core areas, industrial plant intervals and roadside green belts, effectively solving the problem of difficult site selection for urban power distribution facilities.
3.3 Strong Environmental Adaptability & High Durability
The cabin body adopts high-strength galvanized steel structure with anti-corrosion, anti-rust and UV-resistant coating. The standard outdoor model reaches IP54 protection grade, which can effectively block dust, rainwater and floating debris. Equipped with automatic ventilation, heat dissipation and dehumidification devices, it can stably operate in high temperature, low temperature, humid and dusty environments. For coastal salt fog, desert dry and other extreme working conditions, C5-grade anti-corrosion customized treatment can be carried out to extend the service life.
3.4 Intelligent Operation & High Safety
Built-in intelligent monitoring, fault protection and remote communication modules, supporting real-time monitoring of operating parameters such as voltage, current, temperature and equipment status. It can automatically realize overvoltage, overcurrent, short circuit and leakage protection, and feed back fault information remotely. The cabin is equipped with professional fire prevention, anti-theft and isolation protection measures, with reliable interlocking protection logic between functional units, which effectively avoids equipment failure and safety accidents caused by human operation errors or environmental factors.
3.5 Flexible & Scalable Configuration
The modular design supports flexible combination of functional modules. Users can adjust the voltage level, transformer capacity, protection function and monitoring system configuration according to actual power demand. In the later stage of project capacity expansion, the equipment module replacement and upgrade can be completed without overall reconstruction, which reduces the secondary investment cost of the project.
4. Application Scenarios
4.1 Urban Power Grid Construction & Renovation
It is suitable for new construction and upgrading of urban distribution networks, including residential communities, commercial plazas, office buildings and urban parks. It solves the problems of large occupied area and long construction period of traditional urban substations, and realizes efficient and stable power supply for urban civilian and commercial loads.
4.2 Industrial & Mining Enterprises
Widely used in industrial parks, manufacturing factories, mines, oil fields and docks. It can adapt to continuous high-load operation and frequent load fluctuation of industrial production, provide stable medium and low voltage power guarantee for production equipment, and meet the power supply demand of industrial production with high safety and continuity requirements.
4.3 New Energy Power Generation Projects
It is an ideal matching equipment for photovoltaic power stations, wind power stations and energy storage power stations. It is used for power collection, voltage conversion and grid connection of new energy power generation systems. Its intelligent monitoring and remote control functions are compatible with the operation requirements of new energy grid connection, and it can adapt to the intermittent and fluctuating power generation characteristics of new energy.
4.4 Infrastructure & Public Utilities
Applicable to power supply supporting of airports, railway stations, highways, tunnels and urban street lighting systems. The equipment operates stably and requires little daily maintenance, which can meet the long-term and reliable power supply demand of public infrastructure.
4.5 Temporary Power Supply Projects
Suitable for large construction sites, sports events, exhibition activities and emergency power supply scenarios. The integrated movable design supports integral hoisting and transfer, and can quickly complete temporary power supply deployment. After the project is completed, it can be transferred and reused, with high equipment utilization rate.
5. Product Maintenance & After-sales Service
5.1 Daily Maintenance Guidelines
The cabin-type substation is designed with low maintenance, and the daily maintenance work is simple and standardized, without complex professional operation. Regular visual inspection of the cabin body shell, sealing strips and door locks is recommended every 6 months to check for rust, water seepage and damage. Check the ventilation and heat dissipation filters every 3-6 months, clean or replace dust-blocking impurities to ensure smooth heat dissipation. For oil-immersed transformers, conduct oil sampling detection and insulation performance test every 1-2 years. Regularly calibrate the protection relay and monitoring system every year to ensure the accuracy of data monitoring and fault protection action.
In daily operation, keep the cabin interior dry and clean, avoid long-term overload operation, and regularly check the tightness of cable joints to prevent poor contact and heating failure. For equipment operating in extreme environments, appropriately increase the frequency of inspection and maintenance.
5.2 After-sales Service Guarantee
We provide one-stop full-cycle after-sales service for all prefabricated cabin-type substations. The whole machine enjoys a standard 2-year warranty, and key core components such as transformers and switchgears enjoy an extended 3-year warranty. During the warranty period, any equipment quality failure caused by non-human factors will be repaired and replaced free of charge.
We have a professional technical service team to provide 24-hour online technical consultation and fault response service. For on-site faults that cannot be solved remotely, arrange professional engineers to arrive at the site for maintenance within the fastest time according to the project location. At the same time, we provide free factory technical training for customer operation and maintenance personnel, including equipment operation specifications, daily maintenance skills and common fault troubleshooting methods.
In addition, we provide long-term spare parts supply service. After the warranty period, we continue to provide cost-effective equipment maintenance, component replacement and system upgrade services to ensure the long-term stable operation of the equipment and maximize the service life of the product.