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For Purchasing Managers, Technical Directors & Operations Leaders who need a wiring solution that cuts downtime, guarantees compliance, and maximizes ROI.
Get Free Quote in 24 h| Parameter | Typical Value | Unit |
|---|---|---|
| Primary Voltage (Delta) | 380‑415 | V |
| Secondary Voltage (Wye) | 220‑240 | V |
| Power Rating | 5 kVA‑500 MVA | — |
| Frequency | 50/60 | Hz |
| Efficiency | ≥98.5 | % |
| Insulation Class | Class B | — |
| Certifications | CE, UL, ISO 9001, RoHS | — |
Industrial Plant – 10 MVA: Switched from a legacy wye‑wye configuration to our delta‑wye solution, cutting annual energy loss by 18 % and eliminating two unplanned shutdowns in the first year.
Medical Equipment Manufacturer – 250 kVA: Required strict isolation; our custom delta primary with wye secondary met IEC 60601‑1, enabling FDA clearance within 45 days.
Renewable Energy Farm – 5 MW: Integrated delta‑wye step‑up transformers for grid interconnection, achieving compliance with IEEE 1547‑2023 and reducing harmonic distortion to 0.3 %.
Delta connects the three phases in a closed loop, providing high line voltage and low neutral current. Wye (or star) connects each phase to a common neutral point, delivering a lower phase voltage and enabling a stable neutral for single‑phase loads.
Yes. Our R&D team can design any ratio from 1:1 up to 1:1000, with tolerance ±0.5 % and optional tap‑changing options.
Prototype within 14 days, mass production within 30 days after design approval. Express shipping available.
Our technical engineers can travel to your site for commissioning, testing, and training at a nominal travel fee.

All units are tested according to UL 61000‑4‑30, IEC 61850, and are accompanied by a full compliance certificate and test report.
Limited‑time offer: Free design verification report (valued $1,200) for orders placed before 30 June 2026. Stock for standard 5‑15 kVA models is limited.
Or contact us directly: +86 131 2826 5415 | grace01@xcdmagnetic.com | WhatsApp
Emily Chen, Procurement Lead – TechGear Inc. “The delta‑wye transformer arrived ahead of schedule, fully tested, and integrated without a single design change. Our ROI projection hit the target 2 months early.”
Mark Davis, Technical Director – GreenPower Solutions “Excellent technical support. The wiring diagram they supplied matched our IEC‑based control system perfectly, saving us weeks of engineering time.”
Sofia Martinez, Operations Manager – MedEquip USA “Quality certification package was complete and accepted by FDA on first review. No hidden costs – just transparent pricing.”
Trusted by Global Leaders
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Certifications & Compliance: CE, UL, FCC, GS, CB, RoHS, VDE, SAA, ISO 9001, HACCP/GMP, IPPC.