In utility-scale solar farms, converting low-voltage inverter output to high-voltage grid transmission requires specialized magnetic design and compact outdoor integration. Engineered specifically for solar step-up applications, the 13.8kV to 0.8kV 3600kVA S13 solar PV American style pad-mounted substation delivers low losses, robust harmonic tolerance, and reliable ONAN cooling for 60Hz renewable power grids.
Basic Info.
Solar photovoltaic systems subject transformers to continuous thermal peaks, cyclic loading, and inverter-generated harmonic stress. Operating at 60Hz with a hermetically sealed design, this unit bridges the gap between 800V AC solar central/string inverters and 13.8kV high-voltage collector lines.
The 13.8kV to 0.8kV 3600kVA S13 solar PV American style pad-mounted substation is engineered to comply with S13 energy-efficiency standards, reducing baseline core losses and maintaining high operational stability for utility-scale solar installations and commercial energy storage integration.
Inverter-based power generation presents unique operational challenges that standard distribution transformers cannot handle. Here is how our design addresses field requirements:
Inverter Voltage Matching (0.8kV Output): Modern solar central and string inverters operate at 800V AC to reduce DC-side cabling losses. This transformer provides a direct 0.8kV to 13.8kV step-up interface.
Hermetically Sealed Tank: The corrugated steel oil tank is completely sealed from atmospheric exposure, preventing moisture ingress and insulating oil oxidation to ensure a long maintenance-free service life.
60Hz Grid Compatibility: Optimized for 60Hz utility grids across the Americas, Philippines, and specialized international industrial parks.
Performance parameters for reference
| Parameter | Technical Specification | Application Advantage |
| Voltage Ratio | 13.8 kV / 0.8 kV | Direct step-up conversion matching 800V solar inverters |
| Rated Capacity | 3600 kVA | High-capacity block rating optimized for solar inverter stations |
| Efficiency Standard | S13 Series | Low no-load and load losses for maximum energy conservation |
| Vector Group | YNy0 | Star-Star neutral grounding topology for grid connection |
| Rated Frequency | 60 Hz | Native design for 60Hz utility grids |
| Cooling Method | ONAN (Oil Natural Air Natural) | Passive, zero-power cooling for remote solar farms |
| Short-Circuit Impedance | 6.0% | Balances short-circuit current suppression and voltage regulation |
| Voltage Regulation | 2 × 2.5% Off-Circuit Taps | Manual primary winding adjustment for grid voltage swings |
We strictly adhere to international manufacturing standards to guarantee that every unit delivered to your site meets precise performance thresholds.
International Certifications: Our facility and products operate under ISO9001 Quality Management, ISO14001 Environmental Management, CE, and international IEEE/IEC standards.
100% Factory Routine & Type Testing:Every unit undergoes rigorous routine testing before dispatch, including Partial Discharge (PD) measurement (≤5pC), Induced Overvoltage Withstand Test, Temperature Rise Testing, and Insulation Resistance verification.
Dispatch & Packaging Integrity: Enclosures feature heavy-duty anti-corrosion outdoor coatings and oil-level protection locks, anchored inside reinforced shipping frames for ocean transit.
Second, the core advantages and characteristics of the product
Application scenarios
Utility-Scale Solar Farms
Commercial Energy Storage Systems (BESS)
Hybrid Solar-Microgrids
Why Choose Us for Solar Power Projects?
Specialized Solar Transformer Engineering: We customize internal winding insulation and magnetic shielding to counteract harmonic heating caused by modern solar inverters.
Located in China’s Electrical Capital: Our plant is situated in Yueqing , China's premier electrical industrial hub. This grants us direct access to top-tier silicon steel, high-purity copper mills, and specialized high-voltage components, allowing us to deliver premium quality with competitive pricing.
Full OEM/ODM & Custom Winding: We offer complete customization according to your Single Line Diagram (SLD). Whether your project requires non-standard voltage ratios, dual low-voltage input windings, or special tap changers, our engineers tailor every detail.
Frequently Asked Questions (FAQ)
1. What is the typical lead time and shipping process?
A: Manufacturing lead time is 25–35 days. We arrange ocean FCL container shipping directly to major worldwide ports, providing complete commercial invoices, packing lists, and origin certificates.
2. Can this transformer be customized for 50Hz or dual low-voltage input windings? A: Yes. We offer full OEM customization, including 50Hz/60Hz frequency options, special vector connections (e.g., Dyn11, YNd11), and split-phase low-voltage windings for dual-inverter connections.
3. What documentation is provided for customs clearance?
A: Commercial invoice, packing list, bill of lading, certificate of origin, factory routine test reports, and fumigation certificates for sea transport packaging.
4. Request Technical Datasheets & Factory Quotation
Looking for detailed outline dimension drawings, schematic diagrams, or a factory-direct quote for your 13.8kV to 0.8kV 3600kVA S13 solar PV American style pad-mounted substation
Contact Us Today: Email your project specifications or Single Line Diagram (SLD) to taili.livia.com or click the inquiry button to receive full technical documentation within 24 hours.
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