Oil-Immersed Transformers · Distribution
31500 kVA 35kV Three-Phase Oil-Immersed Power Transformer
This 31500 kVA oil-immersed power transformer is designed for medium- to high-capacity transmission and distribution applications in utility,...
Product Catalog
Six core equipment pillars — oil-immersed transformers, dry-type transformers, compact substations, switchgear, isolation transformers, and instrument transformers.
Total Products
491
Oil-Immersed Transformers · Distribution
This 31500 kVA oil-immersed power transformer is designed for medium- to high-capacity transmission and distribution applications in utility,...
Oil-Immersed Transformers · Distribution
This 25000 kVA oil-immersed power transformer is designed for medium- to high-capacity transmission and distribution applications in utility,...
Oil-Immersed Transformers · Distribution
This 20000 kVA oil-immersed power transformer is designed for medium- to high-capacity transmission and distribution applications in utility,...
Oil-Immersed Transformers · Distribution
This 16000 kVA oil-immersed power transformer is designed for medium- to high-capacity transmission and distribution applications in utility,...
Oil-Immersed Transformers · Distribution
This 12500 kVA oil-immersed power transformer is designed for medium- to high-capacity transmission and distribution applications in utility,...
Oil-Immersed Transformers · Distribution
This 10000 kVA oil-immersed power transformer is designed for medium- to high-capacity transmission and distribution applications in utility,...
Oil-Immersed Transformers · Distribution
This 8000 kVA oil-immersed power transformer is designed for medium- to high-capacity transmission and distribution applications in utility,...
Oil-Immersed Transformers · Distribution
This 6300 kVA oil-immersed power transformer is designed for medium- to high-capacity transmission and distribution applications in utility,...
Oil-Immersed Transformers · Distribution
This 5000 kVA oil-immersed power transformer is designed for medium- to high-capacity transmission and distribution applications in utility,...
Oil-Immersed Transformers · Distribution
This 4000 kVA oil-immersed power transformer is designed for medium- to high-capacity transmission and distribution applications in utility,...
Oil-Immersed Transformers · Distribution
This 3150 kVA oil-immersed power transformer is designed for medium- to high-capacity transmission and distribution applications in utility,...
Oil-Immersed Transformers · Distribution
This 2500 kVA oil-immersed distribution transformer is designed for dependable power distribution in utility, industrial, and commercial networks....
Factory Facility & Verification
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.
Real completed units staged in orderly rows, ready for final project inspection, FAT witnessing, and international dispatch.
F/H-class cast resin coils and harmonic mitigation dry-type distribution transformers in stock.
Clear production-stage segregation and routine quality verification for procurement teams prior to container packaging.
Precision silicon steel core stacking, copper coil winding assembly, and tank fabrication.
Heavy-duty vacuum autoclave drying process ensuring zero residual moisture in coil insulation.
Direct container packing and heavy-duty ocean freight loading outside our Hefei facility.
Quality & Compliance
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.
Certified Quality Management System covering design, coil winding, vacuum drying, oil filling, and routine testing of 10kV–35kV distribution transformers.
Environmental Management System certifying low-loss eco-designed core assemblies, zero PCB insulation oil, and environmentally safe production controls.
Occupational Health and Safety Management System ensuring safety containment in high-voltage testing bays and factory assembly protocols.
Complete routine and type test records (temperature rise, impulse voltage withstand, short-circuit withstand) conducted at CNAS-accredited national research institutes.
On-site factory audit certificate by SGS / Made-in-China, verifying manufacturing premises, export capacity, assembly lines, and legal qualification.
Verified annual supply performance and delivery certificate for overseas power grid EPC and industrial infrastructure projects (Mozambique, Nigeria, Kenya, SEA).
Factory & Testing
Factory tours, transformer testing, and production walkthroughs straight from our Hefei manufacturing base.
Hefei manufacturing base, automated workshops, and high-voltage testing laboratory.
100% IEC 60076 voltage ratio, winding resistance, and dielectric routine testing.
Epoxy resin vacuum casting, partial discharge testing, and temperature monitoring.
Compact outdoor substation assembly with loop-feed and dead-front safety design.
Automated coil winding, precision core stacking, and vacuum drying chambers.
Vacuum circuit breakers, copper busbar routing, and relay protection cabinets.
Prefabricated kiosk substation panel wiring, RMU integration, and LV distribution.
Copper foil winding, vacuum resin casting molds, and core-coil assembly.