Oil-Immersed Transformer Manufacturer | Project Supply

Oil-immersed transformers

Oil-immersed and liquid-immersed distribution transformer models for reliable utility, commercial and industrial power distribution.

  • 30 kVA to 2,500 kVA model ranges — matched to your project load
  • 10 kV class models shown — 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.

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
Browse all certificates
ZBB Transformers Production workshop ZBB Transformer Production workshop Testing Center

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
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We use your information only to respond to this transformer inquiry.

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