Solar Distribution
Solar photovoltaic (PV) power has emerged as one of the fastest-growing renewable energy sources worldwide. From small distributed rooftop systems to utility-scale solar farms, every PV plant requires reliable power conversion and grid interconnection. At Shandong Kerui Transformer Co., Ltd. , we provide high-efficiency transformers and compact substations designed specifically for the demanding needs of solar PV generation.
Why PV Systems Depend on Quality Transformers
PV panels produce direct current (DC) at low voltage, which is converted to alternating current (AC) by inverters. The output voltage from inverters is typically 0.4KV, 0.69KV, or 35KV. Transformers are essential to step up this voltage to medium or high voltage (e.g., 10KV, 35KV, 110KV, 220KV) for efficient transmission to the grid. In addition, transformers provide galvanic isolation and protection for sensitive electronic equipment.
Our Transformer Products for Solar PV Plants
Oil-Immersed Transformers (220KV, 110KV, 35KV and below)
– Ideal for large centralized PV substations.
– Excellent overload capacity and natural cooling.
– Available in high-efficiency series: S20 (Level 2) and S22 (Level 1).Dry-Type Transformers (SCB series epoxy resin cast, SGB series non-encapsulated)
– Perfect for rooftop PV or integrated PV buildings (BIPV).
– Fire-safe, maintenance-free, and moisture-resistant.
– SCB14 (Level 2) and SCB18 (Level 1) energy efficiency models.American-style & European-style Box Substations (Compact Substations)
– Pre-engineered unit combining transformer, switchgear, and protection.
– Greatly reduces civil works and installation time.
– Weatherproof and vandal-resistant enclosure for outdoor solar farms.
Key Advantages of Kerui Transformers for PV Applications
High Energy Efficiency: Our Level 1 (S22, SCB18) and Level 2 (S20, SCB14) transformers minimize no-load and load losses, directly improving solar plant ROI.
Wide Voltage Range: From low voltage (0.4KV) to 220KV, covering all PV grid-connection requirements.
Robust Outdoor Design: IP rated enclosures, anti-corrosion coating, and ability to withstand high temperatures, dust, and UV radiation – ideal for deserts, coastal areas, and open fields.
Low Noise & Maintenance-Free: Especially important for residential or commercial rooftop installations.
Global Standards: Compliant with IEC and international standards, suitable for export to Southeast Asia, West Asia, Arab regions, and beyond.
Case Example
In a 50MW solar PV project in the Middle East, our 35KV oil-immersed amorphous alloy transformers and American-style box substations have been operating flawlessly under extreme heat (50°C+), achieving 99.5% availability and reducing step-up losses by over 20%.
Conclusion
As the world shifts to solar energy, the reliability of your transformer directly impacts power generation revenue. Shandong Kerui Transformer Co., Ltd. offers proven, high-performance transformer solutions for every PV application – from residential rooftop to gigawatt-scale solar farms.
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