Company Profile
Customized one-stop solution for transformers
China ZBB Group Shanghai Transformer
ZBB GROUP has been designing and manufacturing power transformers, dry-type transformers, switchgear, and unit substations since 1985.
Our 36,000 m² facility is equipped with 300+ production and testing systems, with an annual capacity of 13.78M kVA and 30+ years of manufacturing experience.
We are a transformer manufacturer with in-house engineering, a full testing lab, and built to ANSI/IEEE, DOE efficiency, and UL/CSA standards.
Why Choose Us
U.S. Standards Compliant
ANSI/IEEE C57.12 series · DOE efficiency · UL/CSA available
Emergency Lead Time as Fast as 15 Days
Strategic material reserve for critical replacements
Harsh Environment Verified
-40°C to +55°C operation · Corrosion resistance test · 10 years zero-failure experience
100% Factory Tested with Third-Party Witnessing Available
All transformers undergo comprehensive factory testing, including temperature rise, hi-pot, no-load and load loss, and short-circuit impedance. Complete test reports are provided. Third-party witnessed testing can also be arranged upon request for specific projects.
Clear Warranty
2-year warranty
Fast Response
Your inquiry is prioritized with technical staff
What We Do
| Product | Capacity | Voltage |
|---|---|---|
| Pad-Mounted Transformers | 75 – 5,000 kVA | 34.5kV class |
| Dry-Type Transformers | 30 – 5,000 kVA | 35kV class |
| Substation Transformers | 5,000 – 20,000 kVA | 69kV class |
| Unit Substation Transformers | 112.5 – 5,000 kVA | 15kV class |
| Overhead Distribution Transformers | 25 – 500 kVA | 34.5kV class |
| Step-Up / Step-Down Transformers | Custom | Custom |
Certifications & Compliance
| Standard | Status |
|---|---|
| ANSI / IEEE C57.12 Series | Compliant |
| DOE 10 CFR Part 431 | Compliant |
| UL / CSA | Available upon request |
| NFPA 70 | Applicable |
| ISO 9001 / 14001 / 45001 | Certified |
| Third-party lab testing (BV / DNV / ABS) |
Available |
Fast Facts
Need a transformer for your U.S. project?
Send your drawing or spec sheet.
[email protected]