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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.
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$+
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6kV 6.3kV 6.6kV 10kV 10.5kV 11kV Neutral Grounding/earthing Transformer Dry Type Power Transformer direct supply
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6kV 6.3kV 6.6kV 10kV 10.5kV 11kV Neutral Grounding/earthing Transformer Dry Type Power Transformer direct supply
Negotiable
6kV 6.3kV 6.6kV 10kV 10.5kV 11kV Neutral Grounding/earthing Transformer Dry Type Power Transformer direct supply with epoxy resin casting, establishing neutral points for grid grounding protection systems.
ROCKWILL
18yrs 500-1000 employees 108000m²+m² US$+
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34.5kV 35KV 88kV 110kV Three Phase Zig-Zag Type Oil-Immersed Earthing Transformer source manufacturer
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34.5kV 35KV 88kV 110kV Three Phase Zig-Zag Type Oil-Immersed Earthing Transformer source manufacturer
Negotiable
34.5kV 35KV 88kV 110kV Three Phase Zig-Zag Type Oil-Immersed Earthing Transformer source manufacturer featuring a zig-zag connection to provide a stable neutral point and enhance ground fault protection.
ROCKWILL
18yrs 500-1000 employees 108000m²+m² US$+
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22kV 30kV 33kV 66kV Three phase Oil Immersed Grounding /Earthing Transformer Manufacturer
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22kV 30kV 33kV 66kV Three phase Oil Immersed Grounding /Earthing Transformer Manufacturer
Negotiable
Rockwill’s 22kV 30kV 33kV 66kV Three phase Oil Immersed Grounding /Earthing Transformer ensures a stable neutral point and limits overvoltages in MV systems, using a zig-zag winding for reliable fault protection.
ROCKWILL
18yrs 500-1000 employees 108000m²+m² US$+
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6kV 6.35kV 7.62kV 13.2kV 13.8kV 14.4 kV Overhead Line Single Phase Automatic Step Voltage Regulator
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6kV 6.35kV 7.62kV 13.2kV 13.8kV 14.4 kV Overhead Line Single Phase Automatic Step Voltage Regulator
Negotiable
The RVR-1 is a 6kV 6.35kV 7.62kV 13.2kV 13.8kV 14.4 kV single-phase oil-immersed regulator that automatically adjusts voltage in steps based on real-time load conditions.
ROCKWILL
18yrs 500-1000 employees 108000m²+m² US$+
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11kV 15kV 22kV 33kV Fully automated, maintenance-free 32 step voltage regulator for distribution lines
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11kV 15kV 22kV 33kV Fully automated, maintenance-free 32 step voltage regulator for distribution lines
Negotiable
Discover fully automated, maintenance-free 32-step voltage regulators for distribution lines. Ensures stable voltage, boosts efficiency, and suits 60/50Hz systems with 11-33kV ratings
ROCKWILL
18yrs 500-1000 employees 108000m²+m² US$+
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Single Phase Automatic Voltage Regulator – 7.62 kV 13.8 kV 14.4 kV 19.92 kV 34.5 kV IEC 60076 compliant for Power Industry
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Single Phase Automatic Voltage Regulator – 7.62 kV 13.8 kV 14.4 kV 19.92 kV 34.5 kV IEC 60076 compliant for Power Industry
Negotiable
Automatic Step Voltage Regulatorautomatic step voltage regulator 6kV 7.62 kV 13.8 kV 14.4 kV 19.92 kV 34.5 kV single phase – IEC 60076 for Power Industry
ROCKWILL
18yrs 500-1000 employees 108000m²+m² US$+
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35kV single-phase pad-mounted transformer
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35kV single-phase pad-mounted transformer
Negotiable
35kV Single - Phase Pad - Mounted Transformer: Ideal for underground resi & comm distribution. Ensures safety, reliability. Multiple voltage options, with CSP for protection.
Vziman
14yrs 100-500 10000+m² US$+
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