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Power & Distribution Transformer Factory | Wholesale Custom HV LV Electric Transformer Manufacturer

Power & Distribution Transformer Factory | Wholesale Custom HV LV Electric Transformer Manufacturer
Power & Distribution Transformer Factory | Wholesale Custom HV LV Electric Transformer Manufacturer
Power & Distribution Transformer Factory | Wholesale Custom HV LV Electric Transformer Manufacturer
Power & Distribution Transformer Factory | Wholesale Custom HV LV Electric Transformer Manufacturer
Power & Distribution Transformer Factory | Wholesale Custom HV LV Electric Transformer Manufacturer
Source high-quality power & distribution transformers from verified direct manufacturers. Our HV/LV transformers comply with IEC 60076, ISO, ANSI standards, including oil immersed and dry type models with ultra-low no-load loss. We offer full OEM & ODM customization, flexible voltage transformation ratios, third-party test certificates and global bulk shipping. No middlemen, competitive factory pricing for grid power transmission, industrial mining, commercial building and residential distribution projects across all countries.

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Photovoltaic Inverter Isolation Transformer with Harmonic Suppression
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Photovoltaic Inverter Isolation Transformer with Harmonic Suppression
$38,900.00 ~ $45,300.00
250kVA inverter isolation transformer for PV systems, Dyn11, Class H. Blocks DC injection, suppresses harmonics. ≥98.5% efficiency. CE, RoHS, ISO 9001.
ROCKWILL
Access Validation 18yrs 500-1000 108000+m² US$150,000,000+
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Photovoltaic Isolation Transformer for Outdoor Solar
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Photovoltaic Isolation Transformer for Outdoor Solar
$24,300.00 ~ $27,400.00
160kVA PV isolation transformer with 304 stainless steel enclosure. Outdoor rated, anti-corrosion, fireproof, moisture-proof.
ROCKWILL
Access Validation 18yrs 500-1000 108000+m² US$150,000,000+
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Solar Isolation Transformers for Photovoltaic Systems-5kVA–1000kVA
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Solar Isolation Transformers for Photovoltaic Systems-5kVA–1000kVA
$22,800.00 ~ $80,600.00
5kVA–1000kVA solar isolation transformers for PV. Grid connection, harmonic isolation, DC blocking. Dry-type, Class H. CE, RoHS, ISO 9001.
ROCKWILL
Access Validation 18yrs 500-1000 108000+m² US$150,000,000+
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245kV 275kV 400kV 330kV Three-Phase Three-Winding On-Load Tap-Changing Autotransformer
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245kV 275kV 400kV 330kV Three-Phase Three-Winding On-Load Tap-Changing Autotransformer
$800,000.00
Three-Phase On-Load Tap-Changing Autotransformer: High-reliability UHV equipment with flexible voltage regulation, stable power transmission in large-scale grids.
ROCKWILL
Access Validation 18yrs 500-1000 108000+m² US$150,000,000+
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735kV 750kV 765kV Single-phase Oil-Immersed Autotransformer with Three Windings and No Excitation
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735kV 750kV 765kV Single-phase Oil-Immersed Autotransformer with Three Windings and No Excitation
$514,000.00
750kV Single-Phase Oil-Immersed Autotransformer. Features 3-winding design with no-load voltage regulation for ultra-high voltage grid applications
ROCKWILL
Access Validation 18yrs 500-1000 108000+m² US$150,000,000+
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Single-Phase Oil-Immersed Autotransformer for UHV Transmission Grid-550kV
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Single-Phase Oil-Immersed Autotransformer for UHV Transmission Grid-550kV

$428,000.00
Rockwill ODFS-550kV 334MVA single-phase oil-immersed autotransformer, three-winding off-circuit tap-changing. IEC 60076 compliant for UHV transmission.
ROCKWILL
Access Validation 18yrs 500-1000 108000+m² US$150,000,000+
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66MVA/22kV Station Transformer(Transformer for generation)
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66MVA/22kV Station Transformer(Transformer for generation)
$274,000.00
Station Transformer: Powers substation/plant auxiliaries. Steps down high voltage to 380V/220V, reliable, compact, with robust protection. Essential for facility operations.
ROCKWILL
Access Validation 18yrs 500-1000 108000+m² US$150,000,000+
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Submerged Arc Furnace Transformer for Reduction Smelting-35kV
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Submerged Arc Furnace Transformer for Reduction Smelting-35kV
$128,000.00
KSZG series oil-immersed submerged arc furnace transformer for ferroalloy, calcium carbide & yellow phosphorus smelting.
ROCKWILL
Access Validation 18yrs 500-1000 108000+m² US$150,000,000+
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GSU Transformer for Renewable Energy-60 to 120MVA
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GSU Transformer for Renewable Energy-60 to 120MVA
$312,000.00
(GSU) Generator Step-Up Transformer for Renewable Energy: Boosts clean power from renewables, ensures grid-compatible transmission. Efficient, reliable for solar, wind projects.
ROCKWILL
Access Validation 18yrs 500-1000 108000+m² US$150,000,000+
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Auxiliary Transformer for Power Generation-110 / 220 kV
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Auxiliary Transformer for Power Generation-110 / 220 kV
$286,000.00
110kV-220kV auxiliary transformer for power plant and substation auxiliary loads, reliable, compact, and protection-enhanced.
ROCKWILL
Access Validation 18yrs 500-1000 108000+m² US$150,000,000+
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