Tanaka Electric
Explore our industry-leading high-voltage instrument transformers, current/voltage sensors, and energy-saving distribution systems engineered for global smart grids.

Epoxy Resin Outdoor Instrument Transformer Monitoring Sensor Split Core Current Transformer
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Dgg 11kv 35kv CT/PT Indoor Single Phase Instrument Current/Voltage/ Potential Transformer
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100kVA to 3000kVA Step Down Hv 20kv 15kv 10kv to 0.4kv 3 Phase Electrical Resin-Cast Dry Type Power Transformer with IP20 Enclosure
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Cnkeeya Jdzx10-10, 10kv Indoor Voltage Transformer Voltage Measuring Instrument PT 10√ 3/0.1√ 3/0.1/3 0.5/6p, 0.2/3p
View ProductComprehensive insights into Oil Natural Air Natural (ONAN) transformer systems, driving efficiency across industrial and commercial power grids worldwide.
ONAN (Oil Natural Air Natural) transformers rely on natural convection of mineral oil and ambient air cooling. Our advanced hermetically sealed designs prevent moisture ingress and oxidation, guaranteeing decades of reliable field operation in extreme outdoor environments.
Equipped with CNC automatic winding machines, CNC static vacuum casting systems, and microcomputer-controlled gradient curing furnaces, we maintain absolute structural integrity and minimal core loss across all distribution lines.
Adhering strictly to ISO9001, ISO14001, CE, and CCC international certifications, our products meet rigorous regional electrical grid codes across North America, Europe, Southeast Asia, and the Middle East.
A high-tech powerhouse specialized in research, development, production, and distribution of high-performance transformers and power equipment.
Zhejiang Tanaka Electric Co., Ltd. is a high-tech enterprise specializing in the production, research and development, and sales of transformers and related products. The company's registered capital amounts to 110 million RMB. It has a strong technical team with 15 senior engineers, over 30 intermediate technicians, and 17 senior technicians. The powerful technical strength provides a solid guarantee for the research and production of products. As of now, the company has obtained 18 patents, demonstrating its remarkable achievements in technological innovation.
In addition, to better meet the diverse needs of customers, the company can also assist in purchasing other products on behalf of customers, striving to provide customers with more comprehensive and convenient services. In recent years, the company has continuously increased investment in technical strength and modern equipment, currently operating over 120 sets of specialized equipment including CNC automatic winding machines, CNC static vacuum casting, automatic foil winding machines, and microcomputer-controlled gradient curing furnaces.
We have formulated strict and perfect quality management standards. From raw material procurement and incoming inspection, production, finished product inspection and warehousing, finished product delivery to installation and other links, all implement strict monitoring processes. We ensure that each process passes layer by layer, eliminate the outflow of unqualified products, and incorporate the pursuit of "zero defects" into every detail.
The company always follows the business philosophy of "technology-oriented, service-first, integrity-based", adhere to taking customer interests as its own responsibility, pay attention to product R&D investment, and strictly operate in accordance with the ISO9001 quality management system standard. Pragmatic, innovative and progressive, we provide customers from all walks of life with high-quality products that meet the characteristics of each region and perfect solutions for transformers. Over the years, the group has undertaken hundreds of key power projects, casting one high-quality project after another with professionalism and ingenuity.
Key operational metrics and credentials of Zhejiang Tanaka Electric Co., Ltd.
| Business Type: | Manufacturer |
|---|---|
| Product Range: | Transformers , Power Distribution Equipment |
| Products/Service: | Power Transformer , Dry-type Transformer , Transformer Substation , Transfomer Accessories , Oil-immersed Transformers , Distribution Box |
| Total Employees: | 201~500 |
| Capital (Million US $): | 110 million RMB |
| Year Established: | 2005 |
| Certificate: | ISO9001 , ISO14001 , CE , CCC |
Discover our complete portfolio of high-efficiency oil-immersed distribution transformers, rectifier units, and specialized dry-type solutions.

Efficient 10kVA-2500kVA/10kv Fully Sealed Oil Immersed Distribution Transformer for Power Supply
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Indoor PT Instrument Transformer 11/√ 3: 0.11/√ 3: 0.11/3kv, 0.2/3 (6) P, 0.5/3 (6) P, Potential Transformer
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On Sale 100kv 200kv 250kVA Power Transformer 10kv Oil Immersed Distribution Transformer Energy-Saving Transformerthree Phase 400V Output Voltage 50kVA Rated 6kv
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6kv-35kv Customizable High Voltage Power Distribution Dry Type Transformer Epoxy Cast Resin Amorphous Alloy Resin Insulated
View ProductExpert answers regarding ONAN transformers, manufacturing standards, and global procurement.