Weisho Electric Co., Ltd.
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YB6-12/0.4-Z Energy Storage Prefabricated Substation

🔋 All-in-One Prefabricated Substation for BESS Integration

The YB6-12/0.4-Z prefabricated substation is specifically designed for battery energy storage systems (BESS), combining high-voltage switchgear, distribution transformer, low-voltage panel, and intelligent monitoring into a weatherproof, modular container. It is engineered for fast deployment in solar+storage, wind+storage, and grid-support projects, meeting the needs of modern distributed energy solutions.


📐 Key Technical Parameters

ParameterSpecification
ModelYB6-12/0.4-Z
Rated Capacity250–2000 kVA (customizable)
High Voltage Level6kV / 10kV / 11kV / 12kV
Low Voltage Level0.4kV / 0.69kV / 1kV
Frequency50Hz or 60Hz
Cooling MethodOil-immersed / Dry-type
HV Switchgear OptionsVacuum breaker, load switch, fuse
Enclosure ProtectionIP54 (outdoor), IP33 (ventilated)
Dimensions3000x2500x2400 mm (standard)
Applicable StandardsIEC 62271-202, GB/T 17467

✅ Features That Make the Difference

  • One-Stop Solution for Energy Storage
    Integrates HV, LV, and transformer sections in a single steel-structured module with separate compartments.

  • Designed for ESS Safety
    Includes battery fault isolation, thermal sensors, and arc flash protection schemes.

  • Flexible System Integration
    Compatible with CATL, BYD, Tesla Powerpack, or containerized lithium-ion systems.

  • Fast Onsite Commissioning
    Arrives fully wired, tested, and ready for connection, cutting deployment time by 70%.

  • Remote Control & Data Access
    Built-in SCADA/EMS interface with Modbus, CAN, and optional 4G/5G modules.


🏗 Application Scenarios

  • PV + Storage Plants (USA, Germany, UAE)

  • Wind Farm Smoothing Substations

  • Commercial & Industrial BESS Hubs

  • Grid Peak-Shaving and Frequency Support Projects

  • EV Charging Parks with Battery Backup


🌍 Real Customer Testimonials

🔹 James M. – Grid Engineer, NextEra Energy (USA)
"We deployed six of these substations across our Texas BESS project—extremely reliable and delivered on time. The plug-and-play concept works well."

🔹 Laura H. – EPC Director, BayWa r.e. (UK)
"It meets G99 grid compliance and integrates seamlessly with Huawei inverters and LG Chem racks."

🔹 Carlos D. – Technical Lead, Iberdrola (Spain)
"Tested in harsh summer and winter conditions. No thermal failures. It’s a compact but durable substation option for hybrid energy facilities."


❓ FAQs – Energy Storage Substation

• What’s the advantage of prefabricated over traditional substations?
Prefabricated models cut project delivery time by 40–60% and reduce installation risks.

• Can this unit be placed near battery containers?
Yes. Its electromagnetic shielding and temperature protection make it suitable for close coupling with battery enclosures.

• Does it support multi-transformer parallel connection?
Yes. You can customize it with busbar couplings or ring main units for redundancy.

• Can the transformer type be selected?
Both oil-immersed and cast-resin types are available, based on site conditions.

• Is it compliant with European and North American standards?
Yes. Designed per IEC 62271-202 and available with UL/NEMA adaptations upon request.


📞 Contact Us for Drawings, Pricing & SLDs

Thor – Electrical Engineer, Wei Shoe Elec
📞 Phone: +86-0577-62788197
📱 WhatsApp: +86 159 5777 0984
📧 Email: [email protected]

Let’s simplify your ESS deployment. Send us your layout, and we’ll return a tailored technical proposal within 24 hours.

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