Open ventilated 3D wound core dry-type transformer (SGB dry-type transformer) once again solves the problem of residents' noise complaints

Recently, the residents of Baiyun Yayuan Community in Baiyun District, Guangzhou, who were troubled by the loud noise of the transformer room, finally ushered in "quietness". One SCB type 630kVA laminated iron core resin pouring dry changer operating in the power distribution room of #10 building #3 in Baiyun Yayuan Community made a lot of noise for a long time. After the field test, the noise was as high as 66.5dB, although the power room was in Residential buildings are on the first floor, but residents from the second floor to the seventh floor can hear the noise from the transformer in the electric room. This problem has not been effectively resolved. A few days ago, Guangzhou Baiyun Power Supply Bureau investigated the latest technology products of low-noise dry conversion in the market and made replacement arrangements. The room noise has dropped by more than 20 decibels, the transformer noise test is only 42.7 dB, and the ambient noise outside the electric room is 47.9 dB, which shows that the noise of the open three-dimensional wound core dry-type transformer after replacement is lower than the surrounding environmental noise, and the low noise is truly realized. Noise status completely solves the problem of noise troubles for residents. For details, please refer to the attached "Application Proof of Haihong SGB Type Open Three-Dimensional Wound Core Dry-type Transformer". Prior to this, Haihong Electric's open three-dimensional wound core dry-type transformer also helped solve: the power distribution room of Shiji Town People's Hospital of Guangzhou Panyu Power Supply Bureau, the Ming'an Garden Power Distribution Room of Shenzhen Guangming Power Supply Bureau, and the Shenzhen Longgang Power Supply Bureau Several incidents of noise nuisance, such as the power distribution room of Peninsula Garden, have been highly praised by the power supply bureau and residents.

Haihong Electric has been established for more than 22 years since its establishment in 1998. It has always adhered to the principle of "rather going bankrupt than fraudulent" and insisted on the technological research and development of energy-saving and environmentally friendly three-dimensional wound core transformers. It has successively obtained more than 200 domestic and foreign authorized patents, including the invention More than 40 patents. The open-type three-dimensional wound core dry-type transformer that solves the problem of residents’ noise complaints combines the three-dimensional wound core structure with the NOMEXThe combination of insulation system makes the product have the advantages of green environmental protection, three-phase magnetic circuit balance, low loss, low noise, small surrounding electric field and magnetic field strength (small radiation), fire and explosion protection, strong overload capacity, strong short-circuit resistance, and small footprint. , is a real ultra-quiet urban green distribution transformer. Haihong Electric's open three-dimensional wound core dry-type transformer has won the second prize of the Green Manufacturing Science and Technology Progress Award, and it is the only electromechanical equipment manufacturer that has won this honor. At the same time, Haihong Electric is still constantly reinforcing the open three-dimensional wound core dry-type transformer, such as using stainless steel clamps, which not only solves the problems of anti-rust and anti-corrosion, but also reduces the weight of the dry transformer while ensuring the strength, which is more suitable It is used in super high-rise buildings, and the stainless steel clamp has non-magnetic properties, which reduces the stray loss caused by the alternating magnetic field during the operation of the transformer, making the product more green and energy-saving. The casing adopts an integrated protective casing, which effectively avoids the damage of the transformer caused by man-made during the installation of the dry transformer, prevents foreign objects from falling into the transformer, simplifies the on-site installation process, and improves the on-site installation efficiency of the transformer.