Abnormal Sound From Distribution Transformers

When AC power passes through the transformer winding, a normal and uniform "buzzing" sound will be generated due to the self vibration of the iron core. If there is any abnormal sound, it is necessary to investigate the cause and promptly report to the relevant department for handling. The sound of the transformer varies when it is unloaded and when it is loaded. Based on the characteristics of abnormal sounds compared to the past, the cause can be identified before putting it into operation.