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11KV 33KV YB Series Compact Outdoor Electrical Substation
The YB Series Compact Outdoor Electrical Substation is an all-in-one intelligent integrated power distribution solution tailored for outdoor power supply projects, covering 11KV and 33KV voltage grades. It supports diversified core transformer configurations, including low-loss, fully-sealed oil-immersed transformers of S9, S10, and S11 series. For eco-friendly and high-safety application scenarios, customers can also opt for premium resin-insulated dry-type transformers or NOMEX paper insulation dry-type transformers. Featuring compact integration, strong environmental adaptability and intelligent operation, this outdoor substation is a reliable and cost-effective choice for various outdoor power distribution systems.
Product Details
The YB Series compact outdoor electrical substation is a high-performance, fully integrated solution engineered to optimize any modern electrical power distribution system. By combining transformation, power distribution, protection, and monitoring into one compact unit, it eliminates the challenges of large footprints, scattered equipment, and complex installations associated with traditional outdoor facilities. With exceptional operational efficiency and ultra-reliable performance, it meets the demanding power supply needs of industrial, municipal, and renewable energy sectors.
Designed with a highly compact structure, this unit offers a flexible layout that enables quick and convenient installation in space-restricted environments. It perfectly adapts to narrow sites, significantly shortening project construction cycles. Furthermore, the entire station features a robust, industrial-grade enclosure built to withstand extreme weather. Whether facing heavy rain, strong winds, extreme temperatures, or dust erosion, it ensures stable and continuous operation, setting a high standard of durability for modern electrical substations.
The YB series boasts exceptional configuration flexibility and customizable performance parameters. Covering mainstream voltage levels, including the highly demanded 33KV Electrical Substation models, it can be precisely tailored to match the scale and load demands of your specific electrical power distribution system. Diversified transformer options further enhance its versatility. Users can select cost-effective S9/S10/S11 low-loss, fully sealed oil-immersed transformers for conventional projects, or opt for eco-friendly, fire-proof resin/NOMEX paper insulation dry-type transformers for high-standard, pollution-free environments.
Safety is paramount in high-voltage applications. This equipment builds a full-dimensional safety barrier, integrating core protection functions such as overcurrent, earth fault, and overvoltage protection. It automatically monitors abnormal conditions in real time, rapidly isolating faulty circuits to prevent equipment damage and power outages, thereby ensuring the overall stability of the entire electrical power distribution system.
Equipped with an intelligent real-time monitoring and precise control system, the unit continuously collects key operating data—including load parameters, voltage, and current values. This supports remote data viewing, early anomaly warnings, and remote troubleshooting. Such smart capabilities help operators quickly locate potential faults, drastically improving maintenance efficiency and reducing daily operational costs compared to traditional electrical substations.
In summary, the YB Series 11KV and 33KV Electrical Substation stands out for its integrated design, heavy-duty durability, flexible configuration, and intelligent monitoring capabilities. It is a high-efficiency, low-consumption solution widely applicable to municipal grids, solar and wind power plants, industrial parks, and rural grid upgrades. By delivering unparalleled reliability, it has earned the trust of global engineering customers seeking top-tier electrical substations.
Technical parameters
| Altitude | Not more than 1000m |
| Ambient temperature | -35℃ ~+40℃ |
| Relative humidity | The daily average is not more than 95%, the monthly average is not more than 90% |
| Transformer | Intelligent integrated substation selection of low loss, oil-immersed, fully sealed S9, S10, S11 series transformer, can also choose resin insulation or NOMEX paper insulation environmental protection type dry transformer |
| Name | Unit | Technical Parameter |
| Rated Voltage | KV | 10/0.4(High Pressure/Low Pressure) |
| Maximum Operating Voltage | KV | 12(High-Pressure Side) |
| Rated Frequency | HZ | Fifty |
| Rated Capacity | KVA | 50-1600 |
| 1min Power Frequency And Pressure Resistance | KV | Thirty-Five |
| Lightning Impact Voltage | KV | Seventy-Five |
| Cooling-Down Method | Immersed Natural Cooling | |
| High Voltage Backup Fuse Open Current | KA | Fifty |
| Add-In Fuse Plug-Off Current | KA | Two Point Five |
| Ambient Temperature | ℃ | -75 |
| The Coil Allows A Temperature Rise | ℃ | Sixty-Five |
| No Load Pressure Regulation | ±5% Or ±2*2.5% | |
| Noise Grade | db | Fifty |
| Levels Of Protection | IP43 |
Should I use a dry-type or oil-filled transformer inside a package substation?
When specifying a compact substation, the choice of transformer is your most crucial decision.
- Oil-Filled Transformers: These are the traditional choice. Oil provides excellent cooling and insulation, making them ideal for high-capacity loads and harsh outdoor environments. However, oil poses a fire hazard and requires a containment pit to prevent environmental contamination in case of leaks.
- Dry-Type Transformers: These use air or cast resin for cooling and insulation. They are virtually maintenance-free, environmentally friendly, and pose zero fire risk. This makes them perfect for indoor use, commercial buildings, or highly populated urban areas. The downside? They are larger, more expensive, and less tolerant of extreme outdoor temperature spikes compared to oil-filled units.
Related Engineering Reading
Electrical Substation Basics · Power Substation vs Prefabricated Substation
For an engineering review, contact Shenheng Power with the approved single-line diagram, site conditions, required standards, and delivery requirements.
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Application Areas
Power distribution solutions serving industrial, commercial and infrastructure projects.
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View MoreFrequently Asked Questions
What is an electrical substation?
An electrical substation is a critical node in a power grid that connects generation, transmission, and distribution networks. It serves as an intersection where voltage levels are adjusted to ensure safe and efficient power delivery.
What do electrical substations do?
Their primary function is to step up voltage for long-distance transmission (reducing energy loss) or step down voltage for local distribution. Additionally, electrical substations isolate faults, regulate voltage fluctuations, and provide switching capabilities to reroute power during maintenance.
What is the difference between a power station and an electrical substation?
A power station (or power plant) is where electricity is generated using coal, gas, nuclear, wind, or solar energy. An electrical substation does not generate power; it merely regulates, routes, and transforms the electricity produced by the power station.
What are the four types of substations?
- Step-up Transmission Substations: Located near power plants to increase voltage for long-distance travel.
- Step-down Transmission Substations: Lower the voltage for regional distribution.
- Distribution Substations: Step the voltage down further for commercial and residential use.
- Underground/Compact Substations: Space-saving units used in urban or industrial areas.
What is the capacity of a 33kV substation?
The capacity depends on the specific transformers installed, but a typical 33KV Electrical Substation handles capacities ranging from 1 MVA up to 30 MVA or more. They are frequently used in renewable energy projects (like solar farms) and heavy manufacturing plants.
What are the components of a 33kV substation?
A standard 33KV Electrical Substation includes incoming and outgoing high-voltage switchgear (such as Vacuum Circuit Breakers or SF6 Ring Main Units), the main power transformer, low-voltage distribution panels, busbars, protection relays, and a grounding system.
What is a YB series substation?
The "YB series" is a standard designation used primarily by Chinese manufacturers for prefabricated or compact substations. It signifies a fully enclosed, factory-assembled unit that meets strict international and local standards for safety, weather resistance, and performance.
What are the three main compartments of a compact substation?
A well-designed compact substation is divided into three isolated sections to ensure safety and prevent fault propagation:
- Medium/High Voltage (MV/HV) Compartment: Houses the high-voltage switchgear.
- Transformer Compartment: Contains either the dry-type or oil-filled transformer.
- Low Voltage (LV) Compartment: Houses the LV distribution boards, metering, and control equipment.
What is the difference between a conventional substation and a compact substation?
A conventional substation is built on-site, requiring extensive civil engineering, large land footprints, and open-air equipment mounting. A compact substation (or package substation) is pre-assembled in a factory, enclosed in a weather-proof metal or concrete housing, and shipped as a single unit. It saves up to 70% of land space and reduces installation time from months to mere days.
What is an electricity distribution system?
An electrical power distribution system is the final stage in the delivery of electric power. It carries electricity from the transmission system to individual consumers. It includes distribution substations, poles, underground wiring, and distribution transformers.
How many kV is a distribution line?
Distribution lines typically operate at medium voltage levels. Depending on the country and specific grid standards, these lines usually carry voltages ranging from 4kV up to 33kV (common ratings include 11kV, 13.8kV, and 33kV) before being stepped down to low voltage (like 400V or 230V) for end-users.
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