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《Automation of Electric Power Systems》 2007-01
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Design and Application of Transformer's Neutral Line Direct Current Monitoring System

HUANG Pan1,GAO Xinhua2,XIE Shanyi2,LU Li3(1 . Guangzhou YueNeng Power Technology Development Co Ltd , Guangzhou 510600 , China)(2 . Guangdong Power Grid Corporation Power Test & Research Institute , Guangzhou 510600 , China)(3 . EHV Power Transmission Company , China Southern Power Grid Co Ltd , Guangzhou 510620 , China)  
The necessity of monitoring the transformer neutral line direct current in the hybrid AC/DC systems is elaborated .The integrated process from substation data acquisition to data issue is introduced . The design of direct current gatheringinstallationis based on Hall theory and the magnetism principle of detailed balance . The various function modules of themonitoring systemare mainly constructed based on the soft bus and the opening database connection. The effectiveness of themonitoring systemis finally explained by an example , whichis described with a curve and a group of numerals .
【CateGory Index】: TM764
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