Custom-engineered oil-immersed and cast resin dry-type transformers built for solar PV substations, industrial power distribution, and severe grid tie-in duties.
Turkey’s energy landscape is undergoing a massive transformation driven by ambitious solar power deployment goals (YEKA GES projects), aggressive rooftop solar installations in industrial zones (OSB - Organize Sanayi Bölgeleri), and utility-scale solar farms across Central Anatolia, the Aegean region, and Southeastern Turkey. Central to this infrastructure is the Solar Inverter Duty Transformer, a critical electromagnetic interface that bridges low-voltage solar inverter outputs with Turkey's 11kV, 22kV, and 33kV distribution networks operated by regional DISCOs (EDAŞ) and high-voltage transmission grids under TEİAŞ (Türkiye Elektrik İletim A.Ş.).
As a leading international factory and exporter, our engineering ecosystem designs specialized multi-winding (split-LV) inverter duty transformers that comply directly with IEC 60076-16 (Transformers for Wind Turbine and Solar PV Application), IEC 60076 series, and local TEİAŞ Grid Code Regulations. By integrating high-grade Cold Rolled Grain Oriented (CRGO) silicon steel cores, foil-winding copper/aluminum technology, and electrostatic grounded shields between primary and secondary windings, our transformers deliver maximum efficiency and longevity under intense operational stress.
Specific design choices that set solar inverter duty step-up transformers apart from standard utility distribution units.
Engineered with double, triple, or quadruple low-voltage (LV) windings on a single magnetic core. This allows multiple central or string inverters to connect to a single transformer substation, reducing balance-of-plant (BOP) costs while maintaining galvanic isolation between inverter channels.
High-conductivity copper electrostatic screens placed between the high-voltage (HV) and low-voltage (LV) windings eliminate high-frequency capacitive cross-coupling. This shields solar inverters from grid voltage surges and prevents high-frequency switching harmonics from penetrating the TEİAŞ grid.
Solar inverters generate non-sinusoidal current waveforms enriched with high-order harmonics (5th, 7th, 11th, 13th). Our transformers are custom-rated for K-Factor (K-9, K-13, up to K-20), utilizing foil winding to suppress eddy current losses and prevent internal hot-spot degradation.
Exporting electrical equipment to Turkey requires precise technical alignment with regional climatic variations and regulatory frameworks enforced by Turkish authorities, including TSE (Türk Standardları Enstitüsü) alignment and DISCO (EDAŞ) regional requirements such as Meram EDAŞ, Toroslar EDAŞ, and GDZ Elektrik.
Solar installations in regions like Konya (Karapınar solar basin), Niğde, and Kayseri experience intense summer heat combined with high altitudes (exceeding 1000m above sea level). High altitude reduces air density and thermal dissipation efficiency. Our transformers incorporate custom-engineered cooling radiators (ONAN/ONAF) and upgraded temperature rise design limits (50°C Oil / 55°C Winding) to guarantee uninterrupted output at peak solar noon.
Factories in Bursa, Kocaeli, Izmir, and Manisa are rapidly installing self-consumption rooftop PV projects. Because of space constraints and strict fire safety codes inside industrial zones, our Cast Resin Dry-Type Transformers (SCB Series up to 33kV) with F1 fire-proof rating and E2 environmental resistance offer a safe, oil-free step-up solution with zero risk of fluid leakage.
Coastal solar installations face high humidity and airborne salinity. Our oil-immersed transformers feature shot-blasted steel tanks coated with multi-layer C4-M/C5-M maritime-grade epoxy polyurethane paint systems, stainless steel hardware, and sealed conservator systems to prevent oil oxidation and external rust.
The table below highlights the crucial engineering parameters required when procuring step-up units for Turkish solar energy projects.
| Parameter / Feature | Standard Distribution Transformer | Synergy Solar Inverter Duty Transformer | TEİAŞ / IEC Requirement Benefit |
|---|---|---|---|
| Primary Application | Grid step-down for linear loads | Solar PV Inverter grid step-up | Optimized for bi-directional energy flow |
| Harmonic Capability | Standard sinusoidal (K-1) | K-Factor Rated (K-9 to K-20) | Handles THD without excessive thermal degradation |
| Winding Configuration | 2 Windings (HV/LV) | Multi-Winding Split (Dual/Triple LV) | Connects multiple central inverters into one unit |
| Inter-winding Shielding | Optional or none | Electrostatic Copper Shielding | Mitigates high-frequency noise and inverter surge |
| DC Bias Withstand | Not rated for DC components | Enhanced Core Saturation Margin | Prevents core saturation caused by inverter DC injection |
| Winding Technology | Conventional round wire | Advanced Continuous Copper/Alu Foil | Uniform short-circuit stress distribution |
| Cooling Options | Standard ONAN | ONAN / ONAF / Ester-Oil Fluid | Reliable thermal management at +45°C ambient |
Operating from our modern, ISO-certified 103,500+ sq. ft. manufacturing facility in Rajkot, Gujarat, India, Synergy Transformers Pvt. Ltd. (founded 2004) has established itself as an authoritative global partner for utility companies, renewable EPC contractors, and industrial groups worldwide.
Utilizing automated foil winding machinery, our coils eliminate axial short-circuit forces associated with conventional wire windings. This structural benefit provides exceptional mechanical integrity during sudden grid-side faults.
Every single unit undergoes rigorous routine testing to IEC 60076 standards before dispatch, including winding resistance, voltage ratio, phase displacement, no-load loss, load loss, and separate-source power frequency withstand tests.
We provide full seaworthy packaging, containerized or breakbulk shipping options directly to Turkish ports such as Ambarlı, Izmir, Mersin, and Gebze, backed by complete technical documentation dossiers, type test reports, and GA drawings.
Clear, direct answers regarding technical compliance, customs documentation, and customization for Turkish energy projects.
Contact our engineering team today with your Single Line Diagram (SLD), inverter specifications, and site requirements. We provide technical recommendations and competitive factory-direct pricing within 24 hours.
