Oil-Immersed Distribution Transformer
Hermetically sealed or conservator type with corrugated tank. Low-loss design for utilities, commercial buildings and industrial feeders.
IEC 60076 · ISO 9001 · Exported to 60+ Countries
TRANSFORMING POWER. WORLDWIDE.
Factory-direct oil-immersed, dry-type and amorphous alloy transformers — engineered for grids that never sleep, from 10kVA distribution units to 63MVA power transformers.
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28yrs
Manufacturing experience
60+
Export countries
2,400
Units shipped per year
99.2%
On-time delivery rate
Interactive 3D — Exploded View
See what makes a VOLTEDGE transformer different
Drag to rotate. Hit “Explode” to open the tank and inspect the core, windings and cooling system — every engineering advantage, annotated.
Drag to orbit · Scroll to zoom · Click a marker for details
01 Step-Lap CRGO Core
02 Cast-Resin Windings
03 HV Cross-Link Busbars
04 HV Post Terminals
05 LV Tin-Plated Busbars
06 AF Cooling Fans
07 Clamping Frame & Skid
Product Range
Built to IEC. Adapted to your grid.
From pole-top distribution units to 132kV power transformers — standard platforms, custom-engineered to your specification.
Medium Power Transformer
Three-phase two-winding units with off-circuit or on-load tap changers for transmission substations, IPPs and heavy industry.
Cast-Resin Dry-Type Transformer
Fire-safe, maintenance-free resin-cast windings for indoor installations: tunnels, airports, data centers and high-rise buildings.
Why VOLTEDGE
Six engineering advantages, zero compromises
Step-Lap Amorphous Core
Laser-cut amorphous alloy laminations stacked in a 45° step-lap pattern reduce no-load losses by up to 70% and cut magnetostriction noise below 45 dB.
99.99% Oxygen-Free Copper
Continuously transposed conductors from C10100 copper keep load losses low and hot-spot temperature rise under 55K — certified by SGS material assay.
ONAF Corrugated Cooling
Fully corrugated tank walls plus optional forced-air stages deliver 30% more radiating surface than flat-tube designs, extending insulation life.
Vacuum Oil Processing
Double-stage vacuum drying and degassing to IEC 60296 pushes breakdown voltage above 70kV/2.5mm and moisture below 10ppm before filling.
Smart DGA Monitoring
Optional online dissolved-gas analysis with 4G/Modbus telemetry flags incipient faults months before failure — predictive maintenance as standard.
C5-M Marine Coating
Shot-blasted Sa 2.5 surface, epoxy-zinc primer and polyurethane topcoat qualified to ISO 12944 C5-M — built for coastal and desert duty.
Global Trade
From our test bay to your substation
Incoterms, certifications, seaworthy packaging and after-sales — export handled end to end.
RFQ & technical clarification
Send kVA, voltage ratio, vector group, standard. Quotation + outline drawing within 24 hours.
Contract & advance payment
Proforma invoice, 30% T/T advance or irrevocable L/C at sight. Production slot reserved.
Manufacturing & routine test
25–45 days typical lead time. Witnessed routine tests and SGS/BV/TÜV inspection available.
Send your specification. Get a quote in 24 hours.
Share your kVA rating, voltage ratio and standard — our engineers reply with price, drawings and lead time.