Services
Design review – technical support
➢ 3D stray losses and temp verification report (Steel parts, core, shunts, etc.)
➢ 2D, 3D hot spot verification report consider Q and S factor.
➢ 2D, 3D E. Static verification report for winding
➢ Transformer Explosion – Arc Resistance verification report
➢ Mechanic natural frequency search verification report for acoustic issues (Core-clamp, winding, tank, etc.)
➢ 2D and 3D advanced short-circuit verification report for power transformer winding
➢ Netted type winding design verification (Thermal and short-circuit)
➢ Arc Furnace Transformer verification reports
➢ …etc.


Cooling of Electric Equipments
➢ ONAN/ODAF/ONWF/ODWF
➢ KNAN/KFAF/KNWF/KDWF
➢ GNAN/GFAF/GNWF/GDWF
➢ AN/ANAF/AFWF/ADAF
Seismic verification
➢ Finite Element Analysis
➢ Shake-Table Testing
➢ Seismic Insulation
➢ Review Work


ester oil application
➢ Natural and Synthetic Ester Applications
➢ E. Static Check for <66kV
➢ E. Static Support for >66kV
➢ Thermal Check of Ester Based Transformer from 0.5MVA to 800MVA
➢ Hermetic Design Check for Ester Based Distribution Transformer
➢ Cold Temperature Start Condition Check (Transient)
Concept Designs
➢ Zig-zag cooled Power Transformers
➢ Compact Transformer Designs
➢ Compact Transformer Substation Designs
➢ Nacelle Transformers (Mech. Vibration Check)
➢ Mining Transformers (Thermal)
➢ Expandable radiator design
➢ Winding Test Platform
➢ Transformer Test Platform
Concept Tools
➢ Mechanic 3D Design Tool for Distribution Transformer
➢ Package 3D Design Tool for Dist. Transformer and Accessories
➢ A novelty Hermetic Calculation for Gas-Chusion Transformer
➢ A novelty Hermetic Calculation for Hermetic Transformers


3D printer technology
➢ FDM and MJF technique
➢ Prototyping with PLA+, ABS, PETG, ASA
➢ 70 °C thermal – 60 MPA Tensile, 85 MPA Flexural
➢ 105 °C thermal – 75 MPA Tensile, 95 MPA Flexural
➢ Transformer Models
F.A.Q.
Our team brings extensive academic and industrial experience, combining scientific research with practical engineering to deliver innovative and tailored solutions for the industry.
The Ra Engineering team is composed of experts at various academic levels, including a full professor, an associate professor, an assistant professor, a PhD-level, and a trafo expert. With backgrounds in mechanical, electrical, and electronics engineering, the multidisciplinary team combines scientific knowledge with industry experience to deliver innovative solutions.