Baiyun Yayuan, Baiyun District, Guangzhou

       A 630kVA laminated core resin casting dry-type transformer in the integrated power distribution room on the 10th floor of Baiyun Yayuan, Baiyun District, Guangzhou made too much noise, seriously affecting the daily rest of residents on floors 2nd-7th. Guangzhou Baiyun Power Supply Bureau selected HAIHONG's SGB11-RL-630/10 open ventilated 3D wound core dry-type transformer for replacement. After the replacement, the noise level of the power distribution room dropped from 66.5 decibels to 42.7 decibels. The open ventilated 3D wound core dry-type transformer has a firm and stable structure, which effectively solves the noise problems caused by the transformer body and vibration.