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Premium Power Transformer Source Factories | Wholesale High Voltage Power Transformer

Source direct from verified power transformer source factories! Our platform features ISO/IEC/ANSI certified manufacturers offering high-capacity power transformers, low-noise design, energy-efficient performance, and OEM customization. Trust factory-direct solutions for grid transmission projects worldwide.

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6.6kV 10kV 13.2kV 13.8kV Three-phase Resin-insulated Pollution-free Dry-type Power Transformer
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6.6kV 10kV 13.2kV 13.8kV Three-phase Resin-insulated Pollution-free Dry-type Power Transformer
Negotiable
Three-phase Resin-insulated Pollution-free Dry-type Power Transformer. Safe, flame-retardant, and maintenance-free for clean indoor power distribution.
ROCKWILL
Access Validation 18yrs 500-1000 108000+m² US$150,000,000+
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100kVA 135kVA 150kVA Three-phase dry-type power transformer
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100kVA 135kVA 150kVA Three-phase dry-type power transformer
Negotiable
IEC 60076 / IEC 60726 VPI dry-type transformers (SG/DG series, 1–150 kVA). Flame-retardant, low-loss, maintenance-free for industrial/commercial power.
ROCKWILL
Access Validation 18yrs 500-1000 108000+m² US$150,000,000+
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6.3kV 6.6kV 10kV 10.5kV 11kV class S13-M.RL series tridimensional wound core transformer Source manufacturer
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6.3kV 6.6kV 10kV 10.5kV 11kV class S13-M.RL series tridimensional wound core transformer Source manufacturer
Negotiable
10kV 3D wound-core distribution transformer (80–2500 kVA). Ultra-low loss, 10–20 dB noise reduction, hermetically sealed.
ROCKWILL
Access Validation 18yrs 500-1000 108000+m² US$150,000,000+
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Customization 7.2kV 10kV 15kV 15.5kVclass S13 series oil immersed fully sealed power transformer
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Customization 7.2kV 10kV 15kV 15.5kVclass S13 series oil immersed fully sealed power transformer
Negotiable
Robust 11kV S13 series fully sealed oil-immersed transformer. Offers maintenance-free operation and long service life for utility and industrial power networks.
ROCKWILL
Access Validation 18yrs 500-1000 108000+m² US$150,000,000+
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Customization 50MVA 161kV 170kV 220kV transformer for power transmission
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Customization 50MVA 161kV 170kV 220kV transformer for power transmission
Negotiable
IEC 60076 compliant 50MVA 161/170/220kV power transformer for transmission substations and grid interconnection with OLTC and smart monitoring.
ROCKWILL
Access Validation 18yrs 500-1000 108000+m² US$150,000,000+
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Power Transformer for Step-up Substation-500kV
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Power Transformer for Step-up Substation-500kV
Negotiable
Enables large-capacity, mid-to-long distance power transfer. Efficient, reliable, critical for regional grid interconnection and stable energy distribution.
ROCKWILL
Access Validation 18yrs 500-1000 108000+m² US$150,000,000+
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Oil-Immersed Power Transformer for Regional Transmission-138kV
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Oil-Immersed Power Transformer for Regional Transmission-138kV
Negotiable
110kV Transmission Transformer: Efficiently steps up/down power for mid-distance grids. Reliable ideal for regional energy distribution and substation integration.
ROCKWILL
Access Validation 18yrs 500-1000 108000+m² US$150,000,000+
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Step-Up Transformer for UHV Grid Interconnection-1000kV
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Step-Up Transformer for UHV Grid Interconnection-1000kV
Negotiable
1000kV Transmission Transformer: Enables ultra-high voltage power transfer, minimizes losses over long distances.
ROCKWILL
Access Validation 18yrs 500-1000 108000+m² US$150,000,000+
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484MVA/500kV GSU Generator Step-Up Transformer Nuclear Power Plant(Transformer for generation)
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484MVA/500kV GSU Generator Step-Up Transformer Nuclear Power Plant(Transformer for generation)
Negotiable
GSU Transformer for Nuclear Power Plant: Steps up reactor-generated power, ensures safe, reliable grid transmission. High durability, compliance with strict nuclear safety standards.
ROCKWILL
Access Validation 18yrs 500-1000 108000+m² US$150,000,000+
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60-120MVA GSU Generator Step-Up Transformer for Renewable Energy(Transformer for generation)
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60-120MVA GSU Generator Step-Up Transformer for Renewable Energy(Transformer for generation)
Negotiable
(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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