Distribution networks
Step-down supply for local distribution and utility-connected projects.
S9 · S11 · S11-M
Oil-Immersed Transformers
Power and distribution transformers for dependable voltage conversion, with the specification built around your network and installation.
Engineered for the duty
Start with the network. Build around the duty.
The YUYUAN brochure covers oil-immersed distribution and power transformer families, including S9, S11 and sealed S11-M designs. The right selection depends on the incoming supply, load profile, installation environment and the requirements of the receiving utility.
Send your specificationWhat to consider
Details that shape the right solution.
- Network compatibilityDefine the primary and secondary voltage, frequency, vector group and earthing arrangement together.
- Installation planningReview cooling, connection positions, access, clearances and oil-containment requirements before finalising a layout.
- Loss evaluationCompare the guaranteed loss values for the proposed model against your operating hours and local requirements.
Application planning
Built around how power is used.
Industrial facilities
Plant power distribution where load patterns, starting duties and protection must be coordinated.
Project substations
A transformer package coordinated with the switchgear and site layout.
Your enquiry
A clearer specification. A better proposal.
Share the details you have. If a requirement is still open, include the project context so it can be reviewed.
- Rated power and number of units
- Primary / secondary voltage and frequency
- Vector group, taps and impedance requirements
- Cooling, ambient conditions and installation altitude
- Termination arrangement and applicable standards
Useful answers
Before you specify.
How do I choose between power and distribution models?
Send the network voltage, required capacity, load profile and installation details. The proposal should match the electrical duty and local network requirements, rather than a model name alone.
Can I request a sealed design?
The brochure includes sealed S11-M designs. State your enclosure, maintenance and environmental requirements so the proposed configuration can be checked.
Which efficiency values apply?
Loss values and efficiency must be confirmed for the quoted rating and design. Request the proposed technical schedule and the relevant test documentation.
Explore further
Related product families.
SC(B) · SCB11 · SG10
Dry-Type Transformers
Resin-cast and non-encapsulated dry-type designs for indoor power distribution.
Explore this family
Oil-immersed · Dry-type
Amorphous Alloy Transformers
Amorphous-core transformer options for projects evaluating no-load losses.
Explore this family
ZBW · CZB · CAB
Compact Substations
Prefabricated and combined substation families for coordinated power distribution.
Explore this familyTalk to YUYUAN
Your project starts with the right questions.
Send the voltage ratio, required capacity and site conditions. Let’s define the transformer around your application.