变压器缩尺模型声功率测量方法比较  

Comparative Research of Sound Power Measurement Method on Transformer Scale Model

作　　者：胡俊杰[1] 冯涛[1] 王晶[1] 臧富瑶[1] 

机构地区：[1]北京工商大学材料与机械工程学院,北京100048

出　　处：《中国电力》2015年第11期71-75,共5页Electric Power

摘　　要：建立一个变压器缩尺模型,在半消声室环境下,以PULSE声振采集系统为测量分析平台,输出并采集各工况下测点的噪声数据。通过比较GB/T 1094.10—2003《电力变压器第10部分:声级测定》与GB6882—86《声学噪声源声功率级的测定:消声室和半消声室精密法》2种标准测量计算的变压器辐射声功率,验证了工程测量标准GB/T 1094.10—2003的准确性和稳定性,研究了不同声学边界条件对声功率测量结果的影响。实验结果表明:防火墙对变压器辐射声功率有一定影响;不同声学边界条件下,2种测试标准声功率测量结果非常接近,且差值都在1 d B以内,表明工程测量标准GB/T 1094.10—2003的准确性和稳定性很高。On-site partial discharge test of Ultra High Voltage （UHV） converter transformer requires good anti-jamming measurement and response capability due to high test voltage, specific requirement and complex field environment. Under symmetrical voltage applying mode, there is large potential difference at transformer winding terminal. It is also inconvenient to adjust reactor compensation and measure voltage and current. The equivalent method of capacitance network of Ultra High Voltage converter transformer is studied. Based on on-site test results, the simulation is performed and compensation reactor parameters are obtained,

关 键 词：变压器 缩尺模型 声功率 噪声 防火墙 低频噪声 声压 

分 类 号：TM41[电气工程—电器]