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《Electrical Measurement & Instrumentation》 2002-07
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The design of online-test instrument for secondary load of transformer based on DSP

Sun Guoyin 1 ,Li Qiyan 1 ,Wang Yu 2 ,Liu Jian 2 ,Gu Hongbo 2 (1.Department of Electric and Electronics Huazhong Univ.of Sci.&Tech.,Wuhan430074,China;2.Wuhan High Voltage Research Institute Huadian Electric Instrument Corpo  
A novel portable intelligent test instrument that can test the secondary load of electric power transformer on-line is presented in this paper.On this system AC elec-tric parameters are measured by the way of digital sampling measurement.The metering precision of this system is ensured by the digital filter and DSP technology.The instru-ment has made great progress in on-line testing secondary load of transformer on-the-spot,and get all electric parameters.
【CateGory Index】: TM451
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