Jiangsu Huachen Transformer Co.,Ltd.
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The SF Series New Energy Dual Split Transformer is a specialized split-type Hua-style transformer engineered for utility-scale photovoltaic (PV) and energy storage systems. Featuring a large rated capacity design, this transformer splits its low-voltage winding into two independent branches, which can support two package substations simultaneously. The two branches can operate in parallel or independently, enabling flexible switching for dynamic power distribution demands. Built with an oil-immersed self-cooled, off-circuit tap-changing fully sealed structure, the transformer consists of a core assembly, oil tank, radiator, high and low voltage insulating bushings, oil level gauge, pressure relief valve, temperature controller, gas relay, and dehydrating breather. As the core component of Hua-style package substations, this series supports a wide capacity range and a voltage rating up to 40.5kV, making it the optimal core equipment for renewable energy power projects.
With a space-saving integrated structure, the dual split transformer for renewable energy fits perfectly into standard shipping containers for seamless ocean transportation, reducing on-site installation footprint and cross-border logistics costs for global power project developers.
Adopting mature insulating materials and advanced insulation technology, the transformer delivers excellent dielectric performance and high operational stability, ensuring uninterrupted and safe operation of power distribution systems in harsh outdoor renewable energy project environments.
The transformer fully meets China’s national energy efficiency standards, minimizing power loss during transmission and conversion, which directly cuts long-term operational costs for renewable energy plant operators.
Its unique dual-split design allows one package substation to undergo maintenance or outage while the other remains fully operational, eliminating unplanned downtime and simplifying routine maintenance for project management teams.
Model Number | Rated Capacity (kVA) | Connection Group Label | High Voltage (kV) | Tap Range | Low Voltage (kV) | Core Weight (KG) | Oil Weight (KG) | Total Weight (KG) | Short Circuit Impedance (%) |
|---|---|---|---|---|---|---|---|---|---|
SF11-3200/37 | 3200 | Dy11y11 | 37 | ±2×2.5% | 0.63 | 3750 | 2270 | 9070 | 6.5 |
SFL-8800/33 | 8800 | Dy11y11 | 33 | ±2×2.5% | 0.66 | 7115 | 4260 | 16580 | 10.0 |
The SF Series split transformer for PV and energy storage is widely used in utility-scale solar photovoltaic power plants, grid-tied battery energy storage stations, containerized mobile power distribution systems, commercial and industrial renewable energy microgrids, and remote off-grid power supply projects.
We offer full customization to match unique project requirements, including adjustable rated capacity and voltage grade within 40.5kV, customized tap range and connection group label, enhanced protection components for harsh environments, container-adapted structural design for overseas shipping, and tailored intelligent monitoring accessories for remote operation management.
All SF Series dual split transformers undergo strict full-process testing and quality inspection in compliance with national and industry standards. We provide professional pre-sales consultation via dedicated hotline and email, full technical support during project design and installation, on-site maintenance guidance, and long-term spare parts supply to ensure stable operation throughout the product’s service life.
Yes. The dual-split winding design supports independent operation of each low-voltage branch, allowing flexible load switching and single-branch maintenance without affecting the operation of the other branch.
This series supports a maximum voltage grade of 40.5kV, covering the vast majority of medium-voltage renewable energy power distribution project demands.
Absolutely. Its compact integrated design is fully compatible with standard shipping containers, ensuring safe and low-cost ocean transportation for global renewable energy projects.
