The basic structure of the magnetic shield of the fuel tank. A set of shielding plates is made of silicon steel sheets and hangs as a lining on the inner wall of the tank. This is because the permeability of silicon steel plates is greater than the magnetic permeability of ordinary steel plates used for fuel tanks, so that the leakage flux flows along the silicon steel plate without entering the box wall, thereby reducing stray losses. Of course, silicon steel plates will also cause iron loss to a certain extent, but the unit loss of silicon steel plates is small. Therefore, the loss in the magnetic shield is less than the loss in the box wall. This method is often referred to as magnetic shielding. Magnetic shielding is typically used only for high-capacity, high-voltage transformers, which are typically around 10mm-40mm thick. The leakage flux of the high winding placed close to the magnetic field strength of the magnetic shield, the height exceeds the height of the winding, because the leakage flux enters the tank wall, bypassing the magnetic shield, the influence of the magnetic shield is reduced. Local overheating occurs in the magnetic shield. Tests have shown that magnetic shielding can be reduced by about 30%.

In order to ensure reliable operation of energy-efficient transformers, at present, medium and large transformers (such as power transformers and reactors of 110 kV or more) usually use non-magnetic or low-magnetic steel structural components, welded to the inner wall of the tank, and shielded with electromagnetic to reduce stray losses. It is the practice of domestic and foreign transformer manufacturers to usually shield certain parts of the box wall electrically or magnetically. Shielding effectively reduces additional losses in transformers by 20%-30%, which plays a very important role in saving energy and increasing product life.

Our company is located at No.2, Building 3, Kunhuang Jiayuan Industrial Park, Shuangfu New District, Jiangjin District, Chongqing Municipality, close to Chengdu-Chongqing High-speed Railway and Chengdu-Chongqing Expressway
The Chongqing-Guizhou Expressway Network has very convenient transportation. It is more than 30 kilometers away from the center of Chongqing. It is based on the majestic and beautiful Gele Mountain Mountains. Geography
Superior location and beautiful factory environment.
Founded in 2005, the company is a joint-stock manufacturing enterprise. The factory has a production area of ​​ 3,000 square meters, more than 40 employees, and 7 professional and technical personnel.
There are various vehicles, milling, planing, sawing metal processing equipment and stamping, hydraulic, shearing, laser welding, carbon dioxide welding, polymer diffusion welding equipment, and
Special winding, hydraulic equipment, etc., have strong processing and manufacturing strength and industry experience in related parts of transformers. The main products are: transformer oil tank
Magnetic shielding (winding, rectangular, circular), wiring terminals (cold-pressed, high-frequency soldered, T-tee) connecting copper twisted wire of transformer and copper wire, and
It can also be used to customize copper bars, terminal boards, flexible connections and copper shields for large transformers.
The company passed the certification of ISO9001:2015 standards, ISO14001:2015 standards, and ISO45001:2018 standards, and was awarded by ABB in 2020.
Honorary title of the top ten outstanding suppliers.
The company's main existing customers are as follows:
Chongqing ABB Transformer Co., Ltd., Zhongshan ABB Transformer Co., Ltd., Shandong Electric Power Equipment Co., Ltd., Zhejiang Sanbian Technology Co., Ltd.
Chongqing Nanrui Borui Transformer Co., Ltd., Shandong Transmission and Transformation Equipment Co., Ltd., Wujiang Transformer Co., Ltd., Sichuan Double Star Transformer Co., Ltd.
Chongqing Yuantong Transformer Co., Ltd., Changzhou Toshiba Transformer Co., Ltd., Chongqing Wangbian Electric (Group) Co., Ltd.
With the rapid development of the market, the company will continue to follow new concepts, improve management, and keep pace with the market. On this basis, it will focus its development on a wider range of fields
Adhere to the sincere cooperation with friends from all walks of life, seek common development, and create glory together!

Xu Gang

hjjx106@163.com

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