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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.
Photovoltaic grid-connected isolation transformer
Whole life care manager

Photovoltaic grid-connected isolation transformer
Negotiable
Photovoltaic grid-connected isolation transformer: Ensures safe grid integration, isolates harmonics. High-efficiency, low-loss design for stable PV power conversion & reliable system protection.
ROCKWILL
18yrs 500-1000 employees 108000m²+m² US$+
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Photovoltaic power generation inverter isolation transformer
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Photovoltaic power generation inverter isolation transformer
Negotiable
Photovoltaic power generation inverter isolation transformer, for PV systems. Ensures electrical isolation, stabilizes power, suits diverse voltages. High - efficiency, reliable for safe grid - connection.
ROCKWILL
18yrs 500-1000 employees 108000m²+m² US$+
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304 stainless steel photovoltaic isolation transformer
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304 stainless steel photovoltaic isolation transformer
Negotiable
304 stainless steel photovoltaic isolation transformer, with 304 stainless steel shell, offers stable isolation, anti - corrosion. Ideal for PV systems, ensures power safety & efficiency.
ROCKWILL
18yrs 500-1000 employees 108000m²+m² US$+
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5kVA-1000kVA Solar isolation transformers
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5kVA-1000kVA Solar isolation transformers
Negotiable
5kVA-1000kVA Solar isolation transformers: Ensure safe grid connection, isolate harmonics. High-efficiency, low-loss designs for PV systems, reliable power conversion & protection.
ROCKWILL
18yrs 500-1000 employees 108000m²+m² US$+
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Photovoltaic inverter grid-connected transformers
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Photovoltaic inverter grid-connected transformers
Negotiable
Photovoltaic inverter grid-connected transformers: Convert DC to AC, ensure grid compatibility. High-quality for stable transmission, safety, and optimal PV performance.
ROCKWILL
18yrs 500-1000 employees 108000m²+m² US$+
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6kV 6.3kV 6.6kV 10kV 10.5kV 11kV Neutral Grounding/earthing Transformer Dry Type Power Transformer direct supply
Whole life care manager

6kV 6.3kV 6.6kV 10kV 10.5kV 11kV Neutral Grounding/earthing Transformer Dry Type Power Transformer direct supply
Negotiable
6kV 6.3kV 6.6kV 10kV 10.5kV 11kV Neutral Grounding/earthing Transformer Dry Type Power Transformer direct supply with epoxy resin casting, establishing neutral points for grid grounding protection systems.
ROCKWILL
18yrs 500-1000 employees 108000m²+m² US$+
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35kV 36kV 44kV 66kV Three Phase Cast Resin Dry Type Zigzag (Z-Type) Grounding Transformer
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35kV 36kV 44kV 66kV Three Phase Cast Resin Dry Type Zigzag (Z-Type) Grounding Transformer
Negotiable
Rockwill 35kV 36kV 44kV 66kV Three Phase Cast Resin Dry Type Zigzag (Z-Type) Grounding Transformer Dry-type neutral grounding solution with full arc suppression coil capacity.
ROCKWILL
18yrs 500-1000 employees 108000m²+m² US$+
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15kV 20kV 22kV 30kV 33kV 35kV oil-immersed neutral grounding resistance to transformer (earthing transfoemer)
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15kV 20kV 22kV 30kV 33kV 35kV oil-immersed neutral grounding resistance to transformer (earthing transfoemer)
Negotiable
15kV 20kV 22kV 30kV 33kV 35kV oil-immersed neutral grounding resistance to transformer (earthing transfoemer) for medium-voltage grids, ensuring system stability and effective ground fault protection via oil cooling and neutral grounding.
ROCKWILL
18yrs 500-1000 employees 108000m²+m² US$+
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Customization 66kV 88kV 110kV 132kV Three Phase Z-type winding Oil-Immersed Earthing Transformer source manufacturer
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Customization 66kV 88kV 110kV 132kV Three Phase Z-type winding Oil-Immersed Earthing Transformer source manufacturer
Negotiable
Rockwill Customization 66kV 88kV 110kV 132kV Three Phase Z-type winding Oil-Immersed Earthing Transformer source manufacturer provides neutral grounding for power systems compliance with IEC standards.
ROCKWILL
18yrs 500-1000 employees 108000m²+m² US$+
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20kV 44kV 145kV 150kV Three Phase Oil-Immersed Neutral Earthing Transformer Custom Factory
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20kV 44kV 145kV 150kV Three Phase Oil-Immersed Neutral Earthing Transformer Custom Factory
Negotiable
Rockwill 20kV 44kV 145kV 150kV Three Phase Oil-Immersed Neutral Earthing Transformer Custom Factory Three-phase zigzag winding design with low zero-sequence impedance
ROCKWILL
18yrs 500-1000 employees 108000m²+m² US$+
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