Finished Transformer Workshop
Real completed units staged in orderly rows, ready for final project inspection, FAT witnessing, and international dispatch.
Intent Landing Page · China Manufacturer
China Transformer Manufacturer for 11kV / 33kV Oil-Immersed Supply
Factory-direct oil-immersed transformer supply from Hefei, China for buyers who are specifically searching for a Chinese manufacturer with 11kV / 33kV distribution range, export documentation, and technical quotation support.
Factory-direct quotes from $1,800 USD
2-Hour Fast CIF Quote
Export documents supported
Instant CIF Quote
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China Manufacturer
Quote Request Logged!
Reference: XH-2026.
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Factory Direct
100% FAT
11kV / 33kV
Voltage Class
50–3150kVA
Core Range
50Hz
Frequency
IEC 60076
Design Reference
Factory Facility & Verification
Real Completed Transformers & Factory Workshop
Direct visual proof of XinHuan's manufacturing capability in Hefei, China. Unedited photographs showing our finished distribution transformer workshop, marked finished products area, cast resin dry-type stock, and export container loading.
Dry-Type Transformer Bay
F/H-class cast resin coils and harmonic mitigation dry-type distribution transformers in stock.
Finished Products Area
Clear production-stage segregation and routine quality verification for procurement teams prior to container packaging.
Active Assembly Floor
Precision silicon steel core stacking, copper coil winding assembly, and tank fabrication.
Vacuum Autoclave Drying
Heavy-duty vacuum autoclave drying process ensuring zero residual moisture in coil insulation.
Export Preparation & Shipping
Direct container packing and heavy-duty ocean freight loading outside our Hefei facility.
Quality & Compliance
Certified B2B Manufacturing & Laboratory Performance
Every transformer, compact substation, and switchgear unit is engineered under audited ISO quality management systems and type-tested according to IEC 60076 and ANSI C57 international standards.
IAF / CNAS Accredited
ISO 9001:2015 Quality System
Certified Quality Management System covering design, coil winding, vacuum drying, oil filling, and routine testing of 10kV–35kV distribution transformers.
Environmental System
ISO 14001:2015 Environmental
Environmental Management System certifying low-loss eco-designed core assemblies, zero PCB insulation oil, and environmentally safe production controls.
Occupational Health
ISO 45001:2018 Safety System
Occupational Health and Safety Management System ensuring safety containment in high-voltage testing bays and factory assembly protocols.
CNAS Lab Type Tests
IEC 60076 & GB Type Tests
Complete routine and type test records (temperature rise, impulse voltage withstand, short-circuit withstand) conducted at CNAS-accredited national research institutes.
SGS Audited Supplier
SGS Verified Manufacturer Audit
On-site factory audit certificate by SGS / Made-in-China, verifying manufacturing premises, export capacity, assembly lines, and legal qualification.
≥180 Units/Yr Export
International Delivery Certificate
Verified annual supply performance and delivery certificate for overseas power grid EPC and industrial infrastructure projects (Mozambique, Nigeria, Kenya, SEA).
China Manufacturer Search Intent
Factory-Direct Oil-Immersed Distribution Supply
This landing page is designed for buyers whose search intent is not just product type but source-country confidence. If someone is searching transformer manufacturer China, china transformer manufacturer, or power transformer manufacturer, they usually want proof of real factory capability, usable product range, test documentation, and export execution rather than generic country-page copy.
XinHuan focuses this page on oil-immersed distribution transformers from 50kVA to 1000kVA, especially 11kV and 33kV models that match Africa and other IEC-led export markets. The page is meant to connect manufacturer trust signals with real product cards and practical RFQ flow.
Product Specification Table
| Product | Oil-Immersed Distribution Transformer |
|---|---|
| Voltage | 11kV / 33kV |
| Capacity | 50kVA–2500kVA |
| Frequency | 50Hz |
| Phase | Three phase |
| Cooling | ONAN (Oil Natural Air Natural) |
| Insulation | Class A Mineral Oil |
| Enclosure | Hermetically Sealed Corrugated Tank |
| Standard | IEC 60076 / ANSI C57.12.00 |
| Vector group | Dyn11 / Yyn0 / customized |
| Tap changer | Off-circuit tap changer (±2×2.5%) |
| Winding | Copper / aluminum |
| LV voltage | 0.4kV / 0.415kV / customized |
| Installation | Outdoor pad-mount / pole-mount / indoor |
Choose a Starting Model
Recommended Transformer Configurations China Manufacturer
These are real XinHuan product records selected for the 11kV / 22kV / 33kV, 50kVA to 3150kVA scope for China Manufacturer projects. Open a model to compare its build, then request an exact project configuration.
Oil-Immersed Transformers · Distribution
100 kVA 33kV Three-Phase Oil-Immersed Distribution Transformer
100kVA Export Sample Range
A useful entry product for buyers who want to validate a manufacturer on build quality, export readiness, and compact 33kV scope.
This 100 kVA oil-immersed distribution transformer is designed for reliable power distribution in rural utility networks, industrial feeders, and...
100 kVA
Medium Voltage
Oil-Immersed Transformers · Distribution
500 kVA 11kV S13 Three-Phase Oil-Immersed Distribution Transformer
500kVA Core Factory Range
A strong mid-range reference product for practical 11kV distribution projects and recurring export enquiries.
This 500 kVA oil-immersed distribution transformer is designed for dependable power distribution in utility, industrial, and commercial networks....
500 kVA
Medium Voltage
Oil-Immersed Transformers · Distribution
1000 kVA 33kV S11 Three-Phase Oil-Immersed Distribution Transformer
1000kVA Manufacturer Capability Proof
Suitable when buyers want to see that the factory can support higher-capacity distribution supply with real product coverage.
This 1000 kVA oil-immersed distribution transformer is designed for dependable power distribution in utility, industrial, and commercial networks....
1000 kVA
Medium Voltage
Local Market Notes
What Buyers Usually Care About in China Manufacturer
China-source buyers often decide early based on whether the manufacturer looks real, responsive, and technically clear rather than only on low initial price.
Searches with China manufacturer intent usually want product range, documentation scope, test support, and export-process signals close to the top of the page.
The fastest way to build trust is to show accurate product cards, realistic reference visuals, and a clean RFQ path tied to actual technical data.
Procurement Notes
Information That Speeds Up Approval
If you are comparing several China factories, send the same technical schedule to each supplier so quotations are truly comparable.
State whether you need transformer-only pricing or a broader package with accessories, switchgear coordination, or compact-substation scope.
If your team needs drawings, routine test references, or delivery packing details before approval, include that in the first RFQ round.
Quote Checklist
What to Send First
Voltage ratio and frequency
Required kVA range and quantity
Destination country or port
Transformer-only or package supply
Accessory and approval document needs
Any drawing, test, or inspection request
Engineering Submittal & Layout Workbench
Substation Room Fit & Multi-Equipment CAD Footprints
Select your equipment type and capacity to inspect verified GA engineering CAD line drawings, Single Line Diagrams (SLD), dimensions (L × W × H), roller gauge, and submittal clearances before procurement.
Available Ratings:
11kV / 33kV Dual Voltage
IEC 60076 / IEEE Compliant
100% Routine Factory Tested
Export Nitrogen / Seaworthy Pack
1000 kVA Technical Dimensions
IEC 60076-1International utility & industrial submittal specifications
| Overall Length (L) | 1,750 mm |
|---|---|
| Overall Width (W) | 1,120 mm |
| Overall Height (H) | 1,780 mm |
| Roller Wheel Track Gauge (D) | 820 mm |
| Total Equipment Net Weight | 3,820 kg |
| Min Substation Clearance | 1,000 mm surrounding |
| Rated Voltage / System | 11 kV / 33 kV Dual Primary |
| Applicable Standard | IEC 60076-1 / IEEE C57 |
Download Technical Data Sheet (PDF)
Request Factory Engineering Submittal Package
Full CAD DXF/DWG vector footprints, 3D STEP models, and custom project submittals provided within 2 hours upon request.
Reference Visuals
Export Photos Buyers Can Compare Against
Factory Reference
Real Product Build for China-Source Buyers
A practical visual reference for procurement teams checking whether the manufacturer presents real outdoor oil-immersed distribution equipment.
Export Comparison
Outdoor Distribution Unit for Supplier Comparison
Useful when internal sourcing teams want to compare Chinese suppliers on build form, finish, and product-range credibility.
Tender & Approval Support
Common Information Procurement Teams Ask For
Commercially agreed drawing, nameplate, and technical-document scope
Routine test references and factory inspection coordination
Packing, loading, and export-document support
Accessory and terminal confirmation before final quotation issue
Tell us about any drawing, packing, or accessory requirements in the first RFQ. Detailed design drawings and final approval documents are scoped after commercial terms and project requirements are agreed.
Applications
Typical Project Applications in China-source
Export sourcing for utility distribution projects
EPC comparison against other China manufacturers
Industrial and factory distribution procurement
Mini-grid and rural electrification sourcing
Repeat-order and private-label style discussions
Technical review before supplier shortlist approval
Delivery & Ports
Shipment Support for Factory Export Orders
We can support EXW, FOB, or CIF quotation structure for buyers sourcing directly from China, with packing, loading, and export document coordination built into the quote process.
China-source buyers usually want a faster first-pass answer on ratings, document scope, test references, and shipment practicality before they move into final commercial discussion.
Why XinHuan
Why Buyers Choose XinHuan for global sourcing
Factory-direct communication from a real transformer manufacturer in Hefei, China
11kV / 33kV oil-immersed distribution range with practical 50kVA to 1000kVA coverage
RFQ support that connects product choice, document scope, test information, and export documents in one flow
Clear product visuals and reference blocks that help buyers compare China suppliers more confidently
Project Fit
11kV / 33kV Distribution Range
Best for buyers who already know they want to source from China and need product clarity, manufacturer confidence, and export-ready quotation support.
Standard page scope: oil-immersed distribution transformers, 11kV / 33kV, 50kVA–1000kVA, three phase, 50Hz, ONAN cooling, copper/aluminum winding options, Dyn11 / Yyn0 / customized vector group, off-circuit tap changer, and outdoor or indoor installation.
Factory & Testing
See XinHuan in Action
Factory tours, transformer testing, and production walkthroughs straight from our Hefei manufacturing base.
Company Tour
Corporate & Factory Tour
Hefei manufacturing base, automated workshops, and high-voltage testing laboratory.
Oil-Immersed
Oil Transformer Routine Testing
100% IEC 60076 voltage ratio, winding resistance, and dielectric routine testing.
Dry-Type
Cast Resin Dry-Type Quality
Epoxy resin vacuum casting, partial discharge testing, and temperature monitoring.
Pad-Mounted Substation
Pad-Mounted Substation
Compact outdoor substation assembly with loop-feed and dead-front safety design.
Production Line
Transformer Production Floor
Automated coil winding, precision core stacking, and vacuum drying chambers.
Switchgear
High-Voltage Switchgear
Vacuum circuit breakers, copper busbar routing, and relay protection cabinets.
Compact Substation
European Compact Substation
Prefabricated kiosk substation panel wiring, RMU integration, and LV distribution.
Dry-Type Assembly
Dry-Type Production Line
Copper foil winding, vacuum resin casting molds, and core-coil assembly.
Production Archives & Virtual Tours:
Watch routine testing procedures, FAT walkthroughs & workshops.
Engineering Quality Assurance
Technical Standards & Certification Compliance
All XinHuan transformers undergo 100% factory routine testing, dielectric voltage withstand tests, and partial discharge inspection before dispatch.
IEC 60076 / 60076-11
ISO 9001:2015 Certified
KEMA / CNAS Type Tested
ANSI / IEEE C57
Engineering Submittal Package
Need CAD outline packs or type test reports for consultant approval in China Manufacturer?
Request Technical CAD & Spec PackSpecialized Substation & Power
Featured Technical Engineering & Product Guides
Explore specialized XinHuan power equipment solutions for emergency substations, SF6 gas-insulated distribution, and renewable BESS energy storage.
Emergency & Rapid Deployment
Substation Spec
Up to 35kV
Mobile Transformer Substation Guide
Trailer and skid-mounted mobile substations with integrated HV/LV switchgear, protection panels, and fast-coupling terminals for emergency grid restoration and remote mining.
Compact Ring Main Unit
Switchgear Rating
12kV / 630A
YRM6-12 SF6 Gas-Insulated Switchgear
Hermetically sealed 12kV SF6 gas-insulated compact switchgear and Ring Main Unit (RMU) for urban distribution vaults, indoor substations, and harsh environments.
Renewable Energy Storage
Inverter Interface
1500V DC / Split-LV
BESS Battery Energy Storage Transformer
Specialized inverter-duty step-up transformers with K-factor harmonic isolation and split low-voltage windings for utility-scale solar PV and BESS battery storage plants.
Related Internal Links
Continue by Product or Region
Use the nearest matching page for specifications, category browsing, or quotation follow-up.
China Manufacturer RFQ CTA
Send Your Transformer Requirement
Send your target voltage, kVA range, quantity, and destination market to receive a factory-direct quotation from XinHuan.
FAQ
Frequently Asked Questions · China Manufacturer
Do you supply 11kV and 33kV transformers for buyers sourcing from China?
Yes. XinHuan supplies 11kV and 33kV oil-immersed transformers for buyers sourcing directly from China for utility, EPC, industrial, and export distribution work.
What capacity range is available?
This page focuses on 50kVA to 1000kVA distribution scope, including common 100kVA, 500kVA, and 1000kVA export enquiries.
Can the transformer be designed according to IEC 60076?
Yes. We work around IEC 60076 design reference and can align the product to project voltage ratio, vector group, accessory scope, and application needs.
Can you quote FOB or CIF for buyers sourcing from China?
Yes. We can quote EXW, FOB, or CIF depending on how the buyer wants to handle China export and destination delivery.
What information is needed for a fast quotation?
For the fastest response, send voltage ratio, kVA rating, quantity, frequency, accessory scope, and destination market or port.
Can XinHuan support EPC contractors, utilities, and industrial projects?
Yes. XinHuan supports EPC contractors, distributors, industrial buyers, utilities, and sourcing teams that specifically want a China transformer manufacturer.
Direct Contact & Instant RFQ
Get Instant Factory Quotation
Contact us directly via WhatsApp, email, or fill out the quick RFQ form below for a fast response from our engineering team.
Quote Request Received!
Reference ID:
Our engineering and export team will email or WhatsApp you detailed technical drawings and CIF pricing within 2 hours.