电路引用The effect of temperature and humidity on audible noise generated from UHV DC transmission lines.pdfVIP

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电路引用The effect of temperature and humidity on audible noise generated from UHV DC transmission lines.pdf

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2008 Annual Report Conference on Electrical Insulation Dielectric Phenomena The Effect of Temperature and Humidity on Audible Noise Generated from UHV DC Transmission Lines Wei Wang (B)*, Bing An, Chengrong Li, Bing Luo2, Xiaolin Li2, Yixu Wang, Fei Fan, Bo Yang 1. Beijing Key Laboratory of High Voltage EMC, North China Electric Power University, Deshengmenwai Zhuxinzhuang, Beijing, China, 102206 2. China southern power grid corporation technical research center, Tianhe Zhujiangxincheng, Guangzhou, China, 510623 * or ww790324@ 163.com Abstract- To research the effect of temperature and humidity on Manual environment room audible noise generated from UHV DC transmission lines, a mini Manual environment room was a 3mX 2m X 2m metal tank corona cage has been constructed and put in a manual with an AC 100kV bushing. It can supply an environment environment room, which temperature and humidity can be controlled. At the same time, an audible noise performance which temperature from -15°C to 40°C and relative humidity measuring system by using A/C weighted network audible noise from 10% to 100%. See its appearance in Fig. 2. meter and 8kHz acoustic sensor have been set up too. The audible noise generated from a copper line have been measured in a mini Manual environment room corona cage not only at different humidity from 30% to 95% but r .l Oscilloscope