Description
YB-PRE Compact Prefabricated Substation
YB-PRE Compact Prefabricated Substation, also known as a European-style compact substation or package substation, integrates high-voltage switchgear, transformer, low-voltage distribution, metering, compensation, control and protection in one enclosed outdoor unit. It is designed for fast installation, small footprint and reliable power distribution up to 35kV.
The product is suitable for small and medium unattended substations, urban industrial power distribution, 10kV distribution systems, rural 35kV substations, commercial facilities, charging stations and infrastructure projects where compact layout and short construction time are important.
Key Features
- Prefabricated and factory-assembled design reduces on-site construction work.
- Integrated high-voltage, transformer and low-voltage functional units in one compact enclosure.
- Supports power transformation, distribution, transmission, metering, compensation, control, protection and communication functions.
- Fully enclosed enclosure design helps improve moisture resistance, corrosion resistance and outdoor reliability.
- Small footprint and movable structure make it easy to coordinate with urban, industrial and infrastructure environments.
- Capacity, voltage level, cabinet arrangement, enclosure material and protection configuration can be customized.
HV Unit Technical Data
| Rated Frequency | Hz | 50 |
|---|---|---|
| Rated Voltage | kV | 6, 10, 35 |
| Max Working Voltage | kV | 6.9, 11.5, 40.5 |
| Industrial Frequency Voltage Withstand | kV | 32/36, 42/48, 95/118 |
| Thunder and Lightning Impulse Withstand | kV | 60/70, 75/85, 185/215 |
| Rated Current | A | 400, 630 |
| Rated Short-Time Withstand Current | kA | 12.5(2s), 16(2s), 20(2s) |
| Rated Peak Withstand Current | kA | 32.5, 40, 50 |
LV Unit Technical Data
| Rated Voltage | V | 380, 220 |
|---|---|---|
| Main Circuit Rated Current | A | 100-3200 |
| Rated Short-Time Withstand Current | kA | 15, 30, 50 |
| Rated Peak Withstand Current | kA | 30, 63, 110 |
| Branch Circuit Current | A | 10-800 |
| Quantity of Branch Circuits | Circuits | 1-12 |
| Compensation Circuit | kVAR | 0-360 |
Transformer Unit Technical Data
| Rated Capacity | kVA | 50-2000 |
|---|---|---|
| Short-Circuit Impedance | % | 4, 6 |
| Tap Range | – | +/-2 x 2.5%, +/-5% |
| Vector Group | – | Yyn0, Dyn11 |
Application Scope
- Urban and industrial distribution substations
- 10kV distribution network projects
- Rural 35kV substations and grid upgrades
- Commercial buildings, industrial parks and residential communities
- EV charging station power distribution projects
- Temporary or fast-deployment power supply systems
Available Custom Options
- Rated capacity from 50kVA to 2000kVA
- 6kV, 10kV or 35kV high-voltage configuration
- Oil-immersed or dry-type transformer selection
- Low-voltage outgoing branch quantity and current rating
- Reactive power compensation, metering and protection devices
- Outdoor enclosure size, color, ventilation and anti-corrosion treatment
FAQ
What is a YB-PRE compact prefabricated substation?
It is an integrated package substation that combines high-voltage equipment, transformer and low-voltage distribution equipment in one enclosed unit for outdoor or project-based power distribution.
What voltage level can this compact substation support?
The standard technical data covers rated voltage levels of 6kV, 10kV and 35kV, with maximum working voltage up to 40.5kV for 35kV systems.
What transformer capacity range is available?
The reference capacity range is 50kVA to 2000kVA. Capacity can be selected according to load demand, installation conditions and future expansion reserve.
Can the compact substation be customized for EV charging stations?
Yes. It can be configured with suitable transformer capacity, low-voltage outgoing circuits, metering, compensation and protection devices for EV charging station power distribution.