CEMarked CEMarked Maximum Unit Capacity
Reactor Current Envelope
Integrated Production Plant
European Standard Certified
Designed to comply with rigorous EN/IEC standards, our engineered equipment delivers low total harmonic distortion (THD), maximum thermal endurance, and unparalleled galvanic isolation for European OEMs.
As industrial automation, electrolytic processing, and large-scale renewable microgrids accelerate across the Hellenic Republic, the demand for specialized, low-loss power conversion apparatus has reached an unprecedented scale. Standard step-down distribution transformers are inherently incapable of sustaining the non-linear loads, high current harmonics, and heavy DC magnetization produced by 6-pulse, 12-pulse, 24-pulse, and active front end (AFE) rectifiers. Operating an ordinary transformer in an aggressive power electronics environment leads to catastrophic eddy-current overheating, severe core saturation, premature winding dielectric breakdown, and grid instability penalties enforced by Greek transmission system operators such as IPTO (ADMIE) and HEDNO (DEDDIE).
Our company engineers and manufactures world-class OEM/ODM Rectifier Transformers specifically tailored to solve these challenges. Drawing on more than 25 years of advanced magnetic manufacturing expertise from an integrated 5,500 m² modern plant, we build units rated from 50VA up to 5,000kVA with line/load reactors up to 2,500A. Every unit manufactured for our partners in Greece is designed in rigorous adherence to IEC 61378-1 (Convertor Transformers for Industrial Applications) and IEC 60076, ensuring CE conformity and guaranteed compliance with IEEE 519 harmonic suppression thresholds.
Whether configuring high-amperage chlor-alkali electrolysis cells, Greek mining machinery, or electric traction corridors for urban transit, our engineering department formulates the magnetic circuit around your exact rectifying configuration. By coupling primary windings with multiple galvanically decoupled secondary windings, we ensure balanced commutating reactance (Xcc). This prevents inter-bridge circulating currents, limits DC output voltage droop under stepped loading, and shields upstream high-voltage distribution networks from destructive commutating notches.
| System Configuration | Phase Displacement | Dominant Harmonics Filtered | Typical Industrial Footprint | Efficiency Class |
|---|---|---|---|---|
| 6-Pulse Industrial Rectifier | 0° (Dyn11 / Yyn0) | Base system (requires input choke/filter) | Small-scale plating, DC drives, EV chargers | 97.5% - 98.2% |
| 12-Pulse Bridge System | 30° (Extended Delta / Double Star) | 5th, 7th canceled internally | Marine shore power, light metallurgy, VFDs | 98.5% - 99.1% |
| 24-Pulse Low-THD Bridge | 15° / 7.5° Multi-Winding Shifts | 5th, 7th, 11th, 13th, 17th, 19th neutralized | Green hydrogen electrolyzers, arc furnaces | 99.2% - 99.4% |
| Active Front End (AFE) Decoupled | Configurable Auto / Isolation | Broadband high-frequency suppression | Regenerative cranes, port container terminals | 98.8% - 99.3% |
From the harsh maritime salt mist of Mediterranean ports to the demanding thermal profiles of inland processing plants, our equipment is built to survive local environmental stressors.
In the bustling ports of Piraeus, Heraklion, and Elefsina, green port directives require cruise ships and container carriers to shut down auxiliary diesel generators while docked. Our rectifier transformers feed shore-side static frequency converters (50Hz to 60Hz DC-link conversion), engineered with C5-M marine-grade anti-corrosive coatings, stainless steel fasteners, and IP55 enclosures resilient against aggressive Mediterranean saline environments.
Greece’s National Energy and Climate Plan (NECP) targets massive renewable hydrogen adoption in Western Macedonia and Corinth. Electrolyzer stacks (PEM and Alkaline) operate at extraordinarily low voltages but demand continuous DC currents exceeding thousands of amperes. Our custom transformers integrate high-conductivity oxygen-free copper busbars, low core induction, and integrated tertiary harmonic stabilizing windings to minimize ripple-induced stack deterioration.
From the alumina plants of Aspra Spitia to heavy industrial steel works in Volos and Thessaloniki, electrical infrastructure is subjected to continuous short-circuit forces and rapid cyclic thermal shocks. We supply reinforced cast resin dry-type (Class H/F insulation) and mineral oil-immersed transformers equipped with high mechanical short-circuit clamping structures to prevent radial and axial coil deformations.
The Hellenic power sector is currently undergoing its most profound structural modernization in fifty years. Greek EPC contractors, panel builders, and procurement officers must design equipment in response to three major market transitions:
The ongoing multi-billion euro undersea cable interconnection linking Crete, the Cyclades, and the Dodecanese to the mainland Greek grid is transforming island electricity topologies. Isolated hybrid microgrids running on massive solar photovoltaic arrays and wind turbines require robust DC-bus coupling transformers. Our cast resin rectifier transformers provide self-extinguishing fire protection, Zero Halogen emission, and total immunity to moisture—essential criteria for compact underground or substations installed across Greek islands.
With major extensions underway on the Athens Metro, the commissioning of the Thessaloniki Metro, and nationwide modernization of the Hellenic Railways (OSE) network, DC traction substations require heavy-duty 750V and 1500V DC power rectification. Traction duty classes (Class VI up to 300% intermittent overload capacity per EN 50329) demand severe short-circuit testing resilience, magnetic shields to suppress stray flux, and high thermal time constants—all built standard into our OEM traction-rectifier magnetics.
European Directive Ecodesign (EU) No 548/2014 and Tier 2 amendments (effective since 2021) place rigorous caps on load losses (Pk) and no-load losses (Po). When operating with distorted load currents, harmonic factor (K-factor) derating often results in oversized, inefficient transformers. Our custom ODM services utilize low-loss high-permeability grain-oriented silicon steel (Hi-B CRGO) and specialized step-lap mitered core architectures to deliver genuine Tier 2 compliance even when exposed to severe 24/7 rectifier loading.
Rooted in over 25 years of advanced automation and magnetics engineering, our dedicated manufacturing infrastructure delivers absolute technical reliability from Gujarat to European ports.
Key architectural and logistical questions answered for Greek industrial procurement specialists, EPC engineers, and technical directors.
For port facilities like Piraeus, Patras, and shipboard applications, we primarily recommend Class F (155°C) or Class H (180°C) Epoxy Cast Resin (Dry-Type) systems. Cast resin encapsulates the coils in an impermeable solid mass under high vacuum, preventing atmospheric salt spray, high humidity, and airborne contaminants from penetrating the dielectric barriers. Alternatively, for outdoor substations requiring oil cooling, we provide hermetically sealed corrugated or radiator tanks protected with certified ISO 12944 C5-M (Marine Heavy) epoxy-polyurethane multi-coat paint systems.
Every transformer built for European export complies with relevant EN/IEC standards (IEC 60076, IEC 61378, IEC 60146). All units carry the official CE mark, supported by complete Technical Construction Files (TCF), EU Declarations of Conformity, and certified routine test certificates. Our electrical design incorporates laser-treated, high-grade CRGO silicon lamination cores cut on automated step-lap lines, minimizing no-load losses and adhering strictly to European Ecodesign Tier 2 maximum loss thresholds.
Yes. As an authentic OEM/ODM manufacturer, we design bespoke secondary output voltages tailored specifically to the bridge topologies of ABB, Siemens, Schneider Electric, Danfoss, or custom thyristor/IGBT stacks. Whether you require non-standard outputs (such as 380V, 415V, 575V, 690V, or low-voltage high-current 48V–110V for plating and electrolysis), primary tappings (±2.5%, ±5% off-circuit or on-load tap changers), and specific vector groups, our engineers optimize the winding turns ratio to ensure exact DC bus voltages under rated load.
100% of our production undergoes comprehensive computerized factory acceptance testing (FAT) prior to crating. Standard routine tests include: automated winding resistance measurement via precision milli-ohm bridge, computerized open-circuit loss and no-load current test, short-circuit impedance and load loss determination, double voltage double frequency (DVDF) induced overvoltage test, separate source AC withstand voltage dielectric test, digital insulation resistance (Megger), and digital LCR impedance testing. Full certified inspection test reports accompany every shipment.
Custom engineering drawings and approval schematics are typically submitted within 3 to 7 working days upon contract receipt. Production of standard units up to 1000 kVA averages 3 to 4 weeks, with heavy multi-winding or oil-immersed substations taking 5 to 7 weeks. Ocean freight shipments dispatch directly from Mundra / Nhava Sheva commercial ports with regular, direct container routes to Piraeus and Thessaloniki, typically arriving in 18 to 24 days. Full export seaworthy vacuum packing and moisture-barrier crating are standard.
Consult directly with our magnetics application engineering team to design custom-wound OEM/ODM rectifier transformers, reactors, and line filters that meet your precise electrical and environmental requirements in Greece.
