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《Power System Technology》 2002-03
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SOME SUGGESTIONS ON HIGHEST OPERATING VOLTAGE OF NORTHWEST POWER GRID IN CHINA

ZHANG Hui qin 1, ZHENG Jian chao 2, SUN Jia ping 3 (1.Northwest Electric Power Design Institute,Xi'an 710032,Shaanxi Province,China; 2.Electric Power Research Institute China,Beijing 100085,China; 3.Information Centre,State Power Corporation of C  
In this paper the present situations of 750 kV power grid constructions in other countries are analyzed,the process of determining the highest operating voltages in domestic 330 kV and 500 kV power grids and its main bases are reviewed,hereby,through the technical economical analysis it is considered that as the highest operating voltage 800 kV can bring more economic benefits and the technologies for the manufacture of the equipment installed in 800 kV power system are also ripe,it is put forward that the 800 kV should be chosen as the highest operating voltage for Northwest Power Grid.
【CateGory Index】: TM721
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