500 kVA Power Transformer
- Cooling TypeONAN
- Primary Voltage34.5 kV
- Secondary Voltage0.48 kV
- Frequency60 Hz
Power Transformer Manufacturer | Global Project Supply
Power Transformer
Power transformer models for utility, substation and industrial projects, with project-specific voltage, capacity and accessories reviewed by ZBB engineers.
- 500 kVA to 200 MVA model ranges — matched to your project load
- Medium and high-voltage classes by model — confirmed against your grid system
- ANSI / IEEE standards, factory test reports included
Custom configurationVoltage, capacity and accessories
Factory test reportsDocumentation for project approval
Global project supportExport coordination from Shanghai
Fast engineering responseDrawings and quotations reviewed quickly
Find the right fit
Available configurations for your project
If your voltage, capacity or installation condition is different, send the requirement directly — our engineering team will confirm a suitable design.
1 MVA Power Transformer
- Cooling TypeONAN
- Primary Voltage34.5 kV
- Secondary Voltage0.48 kV
- Frequency60 Hz
2.5 MVA Power Transformer
- Cooling TypeONAN
- Primary Voltage34.5 kV
- Secondary Voltage12.47 kV
- Frequency60 Hz
5 MVA Power Transformer
- Cooling TypeONAN
- Primary Voltage69 kV
- Secondary Voltage12.47 kV
- Frequency60 Hz
10 MVA Power Transformer
- Cooling TypeONAN / ONAF
- Primary Voltage69 kV
- Secondary Voltage13.8 kV
- Frequency60 Hz
20 MVA Power Transformer
- Cooling TypeONAF
- Primary Voltage115 kV
- Secondary Voltage34.5 kV
- Frequency60 Hz
50 MVA Power Transformer
- Cooling TypeONAF
- Primary Voltage115 kV
- Secondary Voltage34.5 kV
- Frequency60 Hz
100 MVA Power Transformer
- Cooling TypeOFAF
- Primary Voltage230 kV
- Secondary Voltage115 kV
- Frequency60 Hz
200 MVA Power Transformer
- Cooling TypeOFAF
- Primary Voltage230 kV
- Secondary Voltage115 kV
- Frequency60 Hz
Why utilities and EPCs choose ZBB
Certificates, factory and projects — verified
- Certified quality system — CE, UL and type-test documents available for project review
- One factory, full process — winding, assembly, testing and treatment coordinated in-house
- Reference projects — review selected transformer projects delivered worldwide
Before you send an inquiry
Questions before you request a quote
Are your transformers ANSI/IEEE compliant?
Yes. All U.S.-bound transformers are designed per ANSI/IEEE C57.12 series. UL listing available upon request.
What is your warranty?
2 years (extendable upon negotiation).
Can you provide third-party test reports?
Yes. We provide complete factory test reports. Third-party witnessed testing can be discussed on a per-project basis.
What is the minimum lead time for emergency orders?
As fast as 15 days for emergency replacements (strategic material reserve).
Do you have a U.S. warehouse or local support?
Main shipping from Shanghai. Remote technical support and on-site service coordination available.
Next step
Get a transformer configuration for your project
- Reply from the technical team
- Product recommendation and quotation
- Factory test and export documentation support