Tanaka Electric
Tanaka Electric
Engineered for Reliability, Built for Performance
Zigzag transformers, also known as earthing transformers, are becoming critical components in modern power grids. Globally, the shift toward renewable energy sources like wind and solar farms has increased the demand for stable grounding solutions. In ungrounded systems, Zigzag transformers provide a reliable neutral point, preventing catastrophic equipment failure during phase-to-ground faults.
The industry is moving toward "Smart Transformers" with integrated IoT monitoring. Future trends include the use of biodegradable ester oils for cooling, higher efficiency core materials (amorphous metal), and compact designs for urban substations. As data centers and EV charging networks expand, the need for harmonic mitigation—a secondary benefit of Zigzag windings—is skyrocketing.
International buyers from Europe, North America, and Southeast Asia are prioritizing compliance with IEC 60076 and IEEE standards. There is a significant surge in demand for customized K-factor rated transformers that can handle non-linear loads in modern industrial parks and high-tech manufacturing facilities.
In Mining Operations, Zigzag transformers are essential for safety, providing a path for ground fault currents in deep underground networks. In Data Centers, they help manage harmonic distortion caused by thousands of servers, ensuring "clean" power delivery.
For Renewable Energy Substations, our products serve as the backbone for solar arrays, connecting ungrounded delta systems to the utility grid securely and efficiently.
Zhejiang Tanaka Electric Co., Ltd. holds 18 patents in transformer technology. Our R&D team, featuring 15 senior engineers, continuously pushes the boundaries of zero-sequence impedance optimization and thermal management.
Equipped with over 120 sets of modern equipment, including CNC automatic winding machines and static vacuum casting systems, we ensure every Zigzag transformer meets "Zero Defect" standards.
With a registered capital of 110 million RMB, we leverage China's robust supply chain to offer premium quality at competitive global prices, without compromising on materials like high-grade copper or silicon steel.
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.
In recent years, the company has continuously increased investment in technical strength and modern equipment. Currently, it has more than 120 sets of various equipment, including CNC automatic winding machines, CNC static vacuum casting, automatic foil winding machines, and microcomputer-controlled gradient curing furnaces. We continuously optimize production processes to stay at the forefront of the industry.
We have formulated strict and perfect quality management standards. From raw material procurement and incoming inspection to production, finished product inspection, warehousing, and delivery, all implement strict monitoring processes. We ensure that each process passes layer by layer, eliminating the outflow of unqualified products. The pursuit of "zero defects" is incorporated into every detail.
The company always follows the business philosophy of "technology-oriented, service-first, integrity-based." We strictly operate in accordance with the ISO9001 quality management system standard. Over the years, the group has undertaken hundreds of key power projects, casting one high-quality project after another with professionalism and ingenuity.
| 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 |
A Zigzag transformer (or interconnected star transformer) contains two identical windings on each leg, which are cross-connected. This unique vector group (Zn0 or Zn11) allows the transformer to provide a low-impedance path for zero-sequence currents while maintaining high impedance to positive and negative sequence currents. This is crucial for:
Our engineering team utilizes advanced simulation software to model magnetic flux distribution, ensuring that our transformers operate with minimal vibration and noise, even under fault conditions. This level of expertise is why Zhejiang Tanaka Electric is recognized as a premier China Zigzag Transformer Exporter.
Complete Range of High-Voltage Distribution Equipment
