户内配电变压器结构噪声污染分析及控制措施

为调查户内配电变压器噪声对居民生活的影响，对某受到噪声污染投诉的户内变压器进行噪声污染检测，结果显示室内房间的LAeq值和倍频带声压级均超出了国标规定的限值。对测试结果进行系统分析，发现其噪声污染源主要来自于室内变压器的低频结构噪声。在此基础上提出隔振设计的治理措施和方案，取得良好的效果，治理后该住宅户内的噪声检测数据全部满足国标规定的限值要求，该研究结果可为城市户内配电房设计和噪声污染控制提供重要的参考依据。

Analysis and Control of Structural Noise Pollution of Indoor Distribution Transformers

In order to investigate the effect of residents' life which caused by distribution transformer's noise, the noise of indoor distribution transformer were measured. The results show that the LAeq and 1/1 octave spectrum exceed the national emission standard, and the noise was more influenced by the structural noise of indoor transformer. And on this basis a vibration isolation scheme was put forward, and the achieved results were proven to be well and meet the relevant standards after the treatments. This study provided a reference for noise controlling during the designing and constructing process of indoor distribution transformer.