论文部分内容阅读
一、前言随着工农业生产的迅速发展,我国的电网不断扩大,目前,北京地区35kV以上的大型变电所已有144座。大型变压器有260多台,由此而带来了许多变电所内由变压器产生的噪音干扰问题。经实测,其噪声值高达60～90dB(A),大大地超过了城市区域环境噪声标准。该噪声属低频宽带噪声,对人体健康影响很大。国外许多国家在变压器制造时就采取了很多消除噪声的措施,但我国制造厂家还没有解决这个问题.为此,北京供电局和北京市劳动保护科学研究所以会城门110kV变电所为例,对其噪声进行了分析、测试和研究。提出了控制噪声的具体方案,为改进现有变电所的
I. Introduction With the rapid development of industrial and agricultural production, China’s power grid has been expanding. Currently, there are 144 large-scale substations above 35kV in Beijing. Large transformers have more than 260 units, which has led to many substations by the noise generated by the transformer interference. After measured, the noise value of up to 60 ~ 90dB (A), greatly exceeded the urban area of environmental noise standards. The noise is low-frequency broadband noise, a great impact on human health. Many foreign countries take a lot of measures to eliminate noise when manufacturing the transformer, but the manufacturer of our country has not solved this problem yet.To this end, Beijing Power Supply Bureau and Beijing Institute of Labor Protection, Huicheng 110kV substation, for example, The noise was analyzed, tested and studied. Proposed a specific program to control noise, to improve the existing substation