Low Noise Case of Guangzhou Baiyun Power Supply Bureau

       The operating noise of the open ventilated 3D wound core transformer is lower than 45dB(A), and can be lower than 38dB(A), reaching the environmental noise limit of lower than 40dB(A) at night in the class 0 acoustic environment functional area [1], almost reaching a silent state , effectively solve the NIMBY problem of noise disturbance.

       In April 2020, the bureau applied one set of three-dimensional wound core open ventilated dry transformer SGB11-RL-630/10 Dyn11 of your company to solve the problem of one set of stacking in the power distribution room of #3 comprehensive room on the 10th floor of Baiyun Yayuan, Guangzhou Baiyun Power Supply Bureau. Iron core resin casting dry transformer 630kVA noise nuisance problem. After the replacement, the noise in the power room of the transformer dropped by more than 20dB on average, which solved the problem of noise complaints from residents from the 2nd floor to the 7th floor of the residential building.

Note: [1] Refer to GB 3096-2008 "Environmental Quality Standard for Noise". [2] The case includes ambient noise.