住宅小区变压器噪声分析及降噪措施探讨

Discussion on Noise Analysis and Reduction Measures of Transformer in Residential Community

住宅小区变压器噪声超标会影响居民的生活,是民众投诉热点问题之一,因此有必要对降低住宅小区变压器噪声的措施进行探讨。基于噪声实测结果开发了小区变压器噪声传递衰减计算软件,并对变压器噪声衰减规律和影响因素进行分析。结合一起小区变压器噪声超标实例,给出了招标时明确变压器噪声限值要求、设置隔(吸)声屏等几种降低噪声的措施。分析结果表明,这几种措施中,从规划和设计方面防范住宅小区变压器噪声超标的措施经济及社会效益最好。

The exceeding standard of transformer noise in residential community will ＇affect the life of residents which is one of hotissues of complaints. So it is necessary to discuss measures to reduce the transformer noise in residenti community. Noise transmissionattenuation calculation software for transformer in residential community is developed based on actual noise measurement results, andtransformer noise attenuation rules and influence factors are analyzed. Combining with an example of exceeding standard of transformernoise in a residential community, several noise reduction measures are proposed including the clear requirement of transformer noiselimit value, sound insulation （absorbing） screen and so on. Analysis results show that among these measures, those who prevent theexceeding standard of transformer noise in residential community from aspects of planning and design have the best economic and socialbenefits.