Compact Prefabricated Power Station
Zhejiang Tianrun Electric Co., Ltd. is one of the leading manufacturers and suppliers of compact prefabricated power station in China. We are committed to providing high quality customized products with competitive price. We warmly welcome you to buy bulk advanced compact prefabricated power station from our factory. Also, quotation is available.
Product Overview
As application scenarios diversify, traditional box-type substations fall short on footprint, volume, transportation, and cooling. The YBM-12 compact prefabricated power station as a Compact Energy-Saving Substation solves each issue through structural innovation: natural "chimney-effect" ventilation eliminates cooling fans, saving over 450 kWh per unit annually; intelligent condensation dehumidification ensures reliable outdoor operation; and the compact "eye-shaped" layout cuts footprint by approximately 40%.
Fully compliant with the international standard IEC 62271-202 "High-voltage switchgear and controlgear – Part 202: Pre-fabricated/companion substations", it is ideally suited for land-scarce commercial districts, high-end residential communities, and urban lighting projects.
Product Features
Heat Dissipation - Zero Energy, Maintenance-Free
Natural "chimney-effect" ventilation eliminates traditional cooling fans and temperature controls, verified by third-party temperature-rise tests. At 2 fans × 70W × 10h/day, each unit saves 450+ kWh annually, while removing fan maintenance and failure risks.
Transformer - Optimized, Fully Sealed, Touch-Safe
Low-loss S13 series oil-immersed transformer with an optimized body saves space. Touchable plug-in HV cable connectors + enclosed LV bus duct fully seal all live parts, enabling safe contact while energized.
Dehumidification - Condensation Type, Intelligent Integration
A dedicated dehumidifier creates local condensation to turn moist air into water discharged directly outside, rapidly reducing humidity with no temperature-rise impact. Features adjustable thresholds, fully automatic operation, and remote monitoring - ideal for humid outdoor environments.
LV Side - Integrated, Compact, External Operation
An integrated LV switchgear combines metering, incoming, outgoing, and capacitor functions. Draw-out intelligent frame main breaker + plug-in intelligent MCCB outgoing switches with obvious disconnection points. Panel-type operation eliminates shock and arc-flash risks; components are front-maintained.
Enclosure - Small, Light, Aesthetic
Compact technology significantly reduces volume and weight versus conventional substations. Enclosure options: stainless steel, aluminum alloy, cold-rolled steel, color-steel composite - all aging-resistant, flame-retardant, anti-corrosion, waterproof, dustproof. Aluminum wood-grain trim with customizable colors suits scenic spots, residential areas, and municipal projects.
Type Designation
Main Technical Parameters
|
Item |
Unit |
HV Apparatus |
Transformer |
LV Apparatus |
|
Rated Voltage |
kV |
6~10 |
6/0.4 10/0.4 |
0.4 |
|
Rated Capacity |
kVA |
30~1600 |
||
|
Rated Current |
A |
200, 400, 630 |
100~3200 |
|
|
Rated Short-Circuit Breaking Current |
kA |
Load switch 400~630 |
15~80 |
|
|
kA |
Combination switch depends on fuse |
|||
|
Rated Short-Time Withstand Current |
kA/s |
Vacuum Short-Circuit Breaking 31.5/4 |
30/1-80/1 |
|
|
Load-Circuit Breaking 20/3 |
||||
|
Rated Peak Withstand Current |
kA |
Vacuum Short-Circuit Breaking 50/63/80 |
||
|
kA |
Load-Circuit Breaking 50 |
|||
|
Power Frequency Withstand Voltage (1 min) |
kV |
Phase-to-earth & phase-to-phase 42 |
35 (oil-immersed) |
≤0.3, 2 |
|
kV |
Isolation break 48 |
35 (dry-type) |
>0.3, 2.5 |
|
|
Lightning Impulse Withstand Voltage (peak) |
kV |
Phase-to-earth & phase-to-phase 75 |
60/75 |
|
|
Isolation break 85 |
||||
|
Enclosure Protection Degree |
HV cabinet IP40 Substation enclosure IP33D LV cabinet IP30 |
|||
|
Noise Level |
dB |
52~73 (varies with transformer capacity) |
||
|
Execution Standard |
GB/T 17467-1998 "HV/LV Prefabricated Substation" |
|||
Note: The technical parameters of our transformers are for reference only. Customized solutions are available, with specifications adjustable according to project‑specific requirements.
Product Comparison
Figure 1 shows a compact energy-saving European-style substation, configured with 3 high-voltage gas-insulated cabinets (incoming line, ring outgoing, transformer outgoing), 1 low-voltage integrated cabinet (including metering, incoming line, outgoing line, capacitor), and a 630kVA transformer.
Dimensions: 2700mm (L) × 2300mm (W) × 2618mm (H); Footprint: 2.7m × 2.3m = 6.21m²
Figure 2 shows a standard ordinary substation, configured with 3 high-voltage ring main units, 1 low-voltage incoming cabinet, 1 outgoing cabinet, 1 capacitor compensation cabinet, and a 630kVA transformer.
Dimensions: 4300mm (L) × 2400mm (W) × 2700mm (H); Footprint: 4.3m × 2.4m = 10.32m²
Comparison of footprint between ordinary and compact substations: 10.32m² - 6.21m² = 4.11m². Converting one 630kVA substation to a compact type saves 4.11 m² of land. The low-voltage switchgear structure has been researched and optimized, achieving a volume reduction of approximately 50%, a more appearance suitable for residential environments, 40% savings in cold-rolled steel, and approximately 25% savings in copper materials.
Environment
- Altitude: ≤1000m; Ambient temperature: -25°C to +40°C
- Temperature: Maximum monthly average temperature +30°C, maximum annual average temperature +20°C
- Relative humidity: Daily average ≤95%, monthly average ≤90%
- Seismic level: Horizontal acceleration 0.4m/s², vertical acceleration 0.15m/s²
Installation site shall be free from severe shock, serious pollution and chemical corrosion, conductive dust, and explosion hazards. If normal operating conditions cannot be met, please consult our company for a solution.
Application
Central Business & Commercial Districts
Land-scarce CBDs, commercial complexes, and office towers demand compact footprints and aesthetic appeal. With ~40% less footprint than conventional substations, aluminum wood-grain trim, and customizable colors, it blends seamlessly with surrounding architecture. Fanless natural ventilation ensures noise-free operation - ideal for high-end commercial environments.
High-End Residential Communities
Urban luxury residences, townhouses, and villa communities require reliable power, low noise, and landscape harmony. Eliminated cooling fans achieve zero-noise operation; intelligent dehumidification ensures safe power in humid seasons; fully sealed touch-safe design enhances intrinsic safety; and the exterior can be coordinated with community landscaping.
Municipal Engineering & Urban Lighting
Urban road lighting, landscape illumination, and underground facility projects often face limited installation space and harsh outdoor conditions. The enclosure is aging-resistant, flame-retardant, anti-corrosion, waterproof, and dustproof for long-term outdoor use. Multiple wiring schemes (terminal/ring/dual-power) flexibly adapt to municipal power networks.
Tourist Scenic Areas & Landscape Sites
Scenic spots, parks, and cultural tourism projects require power facilities that integrate with the landscape. Compact size, elegant appearance, and customizable color styles allow concealed or accent installation - avoiding the visual disruption of conventional substations.
Humid Southern & Coastal Regions
In humid southern and coastal climates, outdoor switchgear is prone to condensation and insulation degradation. The intelligent condensation dehumidifier operates automatically with remote monitoring and no temperature-rise impact, significantly improving reliability in humid environments.
Space-Limited Renovation & Expansion Projects
Old-city renovation, plant expansion, and temporary power supply scenarios with constrained sites. The compact "eye-shaped" layout greatly reduces volume and weight for easy transport and quick deployment in limited space - saving civil engineering investment.
FAQ
Q: What cooling method does it use? Are fans still required?
A: It adopts "chimney-effect" natural ventilation - cool air drawn in from the bottom and hot air exhausted from the top - completely eliminating traditional axial fans and temperature controls. Zero energy consumption, maintenance-free, and verified by third-party temperature-rise tests.
Q: What are the protection ratings and noise level?
A: HV compartment: IP4X; transformer compartment: IP2X; LV compartment: IP3X. Noise level: 52~73 dB, varying with transformer capacity.
Q: Is natural ventilation cooling sufficient in extreme summer heat?
A: The product adopts an overall natural ventilation structure using the "chimney effect" for air circulation cooling, verified by third-party temperature-rise tests. Under standard operating conditions (max ambient temperature +40°C), normal operation of the transformer and HV/LV equipment is guaranteed. If the project ambient temperature exceeds the standard range, a customized solution can be negotiated with the manufacturer.
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