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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.
PV Isolation Transformer for Solar Inverter Systems
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PV Isolation Transformer for Solar Inverter Systems
$33,200.00 ~ $36,400.00
220kVA grid-connected PV isolation transformer, 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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Three-Phase Dry-Type Isolation Transformer for Industrial Equipment
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Three-Phase Dry-Type Isolation Transformer for Industrial Equipment
$42,400.00 ~ $118,600.00
SG series three-phase dry-type isolation transformer, 1250kVA. Custom input/output voltages ≤3000V. Class H insulation. VPI impregnated. CE, RoHS.
ROCKWILL
Access Validation 18yrs 500-1000 108000+m² US$150,000,000+
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Dry-Type Photovoltaic Isolation Transformer for Solar PV Systems
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Dry-Type Photovoltaic Isolation Transformer for Solar PV Systems
$34,800.00 ~ $132,600.00
SG series dry-type photovoltaic isolation transformer 1kVA–3000kVA with third harmonic blocking, customizable for solar PV systems.
ROCKWILL
Access Validation 18yrs 500-1000 108000+m² US$150,000,000+
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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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