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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.
22kV 30kV 33kV 66kV Three phase Oil Immersed Grounding /Earthing Transformer Manufacturer
Whole life care manager

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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Customization Three - phase 11kV 20kV 22kV 30kV grounding/earthing transformers Original Manufacturer
Whole life care manager

Customization Three - phase 11kV 20kV 22kV 30kV grounding/earthing transformers Original Manufacturer
Negotiable
Customization Three-phase 11kV 20kV 22kV 30kV grounding transformers for power systems, reliable earthing solutions, high-quality electrical equipment.
ROCKWILL
18yrs 500-1000 employees 108000m²+m² US$+
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Customization 15kV 30kV 33kV 34.5kV 36kV Three Phase Neutral Grounding/earthing Transformer direct supply
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Customization 15kV 30kV 33kV 34.5kV 36kV Three Phase Neutral Grounding/earthing Transformer direct supply
Negotiable
Neutral Earthing Transformer（NET）High short-circuit withstand capacity Oil-immersed Grounding Transformer 3.3kV 6kV 11kV 15kV 20kV 22kV 30kV 33kV 34.5kV 36kV 44kV direct supply Manufacturing Industry
ROCKWILL
18yrs 500-1000 employees 108000m²+m² US$+
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High-voltage Permanent Magnet Mechanism Vacuum Switch for Mining Flameproof Mobile Substations
Whole life care manager

High-voltage Permanent Magnet Mechanism Vacuum Switch for Mining Flameproof Mobile Substations
Negotiable
High-voltage Permanent Magnet Mechanism Vacuum Switch: For mining flameproof mobile substations. Explosion-safe, reliable. Ensures stable power, ideal for hazardous mining environments.
ROCKWILL
18yrs 500-1000 employees 108000m²+m² US$+
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Customization 220kV 225kV 230kV 245kV Class oil-immersed three-phase Power transformer
Whole life care manager

Customization 220kV 225kV 230kV 245kV Class oil-immersed three-phase Power transformer
Negotiable
Customization 220kV 225kV 230kV 245kV Class oil-immersed three-phase Power transformer; oil-immersed transformer
ROCKWILL
18yrs 500-1000 employees 108000m²+m² US$+
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230kV 245kV 275kV 330kV Class Core-type oil-immersed power transformer Original Manufacturer
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230kV 245kV 275kV 330kV Class Core-type oil-immersed power transformer Original Manufacturer
Negotiable
230kV 245kV 275kV 330kV Class Core-type oil-immersed power transformer Original Manufacturer; oil-immersed transformer
ROCKWILL
18yrs 500-1000 employees 108000m²+m² US$+
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Customization 363kV 345kV 400kV 550kV Class High Voltage oil-immersed Power transformer
Whole life care manager

Customization 363kV 345kV 400kV 550kV Class High Voltage oil-immersed Power transformer
Negotiable
Customization 363kV 345kV 400kV 550kV Class High Voltage oil-immersed Power transformer, oil-immersed transformer
ROCKWILL
18yrs 500-1000 employees 108000m²+m² US$+
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TCR Shunt Reactors for SVC
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TCR Shunt Reactors for SVC
Negotiable
TCR Shunt Reactors for SVC: Enhance power quality, stabilize voltage. Ideal for dynamic reactive power compensation in industrial grids. High - performance, reliable solutions.
ROCKWILL
18yrs 500-1000 employees 108000m²+m² US$+
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45-12000 kVA Three-phase pad-mounted transformers
Whole life care manager

45-12000 kVA Three-phase pad-mounted transformers
Negotiable
Explore 45 - 12000 kVA three-phase pad-mounted transformers. Reliable, efficient, and ideal for various power distribution needs
Vziman
15yrs 100-500 10000+m² US$+
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15kV Three-phase Oil-immersed Power Distribution Transformer
Whole life care manager

15kV Three-phase Oil-immersed Power Distribution Transformer
Negotiable
15kV Three-phase Oil-immersed Power Distribution Transformer
Vziman
15yrs 100-500 10000+m² US$+
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