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Electric Transformer Source Factories | Wholesale Power Transformer Platform

Discover verified electric transformer source factories on our vertical platform! We gather top-tier manufacturers offering ISO/IEC/ANSI certified power transformers, custom specifications, low energy loss, OEM/ODM support, and global shipping. Skip middlemen—source directly from reliable factories for power transmission & distribution projects worldwide.
Customization 10kV 17.5kV 30kV 35kV Three phase Oil-Immersed Electric Furnace Transformers
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Customization 10kV 17.5kV 30kV 35kV Three phase Oil-Immersed Electric Furnace Transformers
Negotiable
We are a professional manufacturer of 10kV and 35kV oil-immersed electric furnace transformers, with high current, low impedance and on-load tap changing, widely used in steel, ferroalloy, etc., providing reliable power solutions.
ROCKWILL
18yrs 500-1000 employees 108000m²+m² US$+
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Submerged arc furnace transformer
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Submerged arc furnace transformer
Negotiable
Submerged arc furnace transformer: Powers ferroalloy, calcium carbide smelting. Stable, high-capacity, with precise voltage regulation.
ROCKWILL
18yrs 500-1000 employees 108000m²+m² US$+
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Customization 110kV 1200MVA/500kV transformer for power transmission
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Customization 110kV 1200MVA/500kV transformer for power transmission
Negotiable
110kV 500kV Transmission Transformer: Enables large-capacity, mid-to-long distance power transfer. Efficient, reliable, critical for regional grid interconnection and stable energy distribution.
ROCKWILL
18yrs 500-1000 employees 108000m²+m² US$+
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840MVA/500kV GSU Generator Step-Up Transformer Hydro Power Plant
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840MVA/500kV GSU Generator Step-Up Transformer Hydro Power Plant
Negotiable
GSU for Hydro P/P: Boosts power from hydroelectric plants, enables efficient grid transmission. Reliable, adapts to variable water flow, essential for hydro energy systems.
ROCKWILL
18yrs 500-1000 employees 108000m²+m² US$+
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110kV-220kV Auxiliary Transformer(Transformer for generation)
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110kV-220kV Auxiliary Transformer(Transformer for generation)
Negotiable
Aux Transformer: Powers facility auxiliaries, steps down voltage reliably. Compact, efficient, with robust protection. Essential for plants, substations, industrial operations.
ROCKWILL
18yrs 500-1000 employees 108000m²+m² US$+
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110kV 123kV 132kV 145kV Class Core-type oil-immersed High Voltage power transformer
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110kV 123kV 132kV 145kV Class Core-type oil-immersed High Voltage power transformer
Negotiable
110kV 123kV 132kV 145kV Class Core-type oil-immersed High Voltage power transformer; oil-immersed transformer
ROCKWILL
18yrs 500-1000 employees 108000m²+m² US$+
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10kVA Outdoor Three-Phase Photovoltaic Isolation Transformer
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10kVA Outdoor Three-Phase Photovoltaic Isolation Transformer
Negotiable
10kVA Outdoor Three-Phase Photovoltaic Isolation Transformer: Durable for outdoor solar setups, ensures safe power isolation & stable 800V/800V conversion.
ROCKWILL
18yrs 500-1000 employees 108000m²+m² US$+
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Long-Lasting 800V/800V Photovoltaic Transformer for Continuous Solar Energy Supply
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Long-Lasting 800V/800V Photovoltaic Transformer for Continuous Solar Energy Supply
Negotiable
Long - Lasting 800V/800V Photovoltaic Transformer ensures continuous solar energy supply. High - durability, efficient power conversion for stable PV systems.
ROCKWILL
18yrs 500-1000 employees 108000m²+m² US$+
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1kVA-3000kVA Photovoltaic Isolation Transformer
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1kVA-3000kVA Photovoltaic Isolation Transformer
Negotiable
1kVA-3000kVA Photovoltaic Isolation Transformer, ideal for PV systems. Ensures electrical isolation, stable power, high efficiency. Suitable for solar energy applications.
ROCKWILL
18yrs 500-1000 employees 108000m²+m² US$+
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Low-Loss Three-Phase Photovoltaic Isolation Transformer
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Low-Loss Three-Phase Photovoltaic Isolation Transformer
Negotiable
Low-Loss 3-Phase PV Isolation Transformer: Reduces energy loss, ensures safe grid connection. High-efficiency design for stable power conversion & harmonic suppression.
ROCKWILL
18yrs 500-1000 employees 108000m²+m² US$+
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