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21世纪,人类面临着越来越严重的能源危机,节约能源是我国乃至全世界持续发展的必然手段。电力工业既是重要的能源生产部门,同时又是耗能大户,电力系统在发、供、用电过程中,其自身电能损耗是相当巨大的,我国的综合电能损耗总量每年高达3000~3700亿千瓦时。挖掘节电潜力,降低电力系统的损耗,提高供电的经济效益,具有重要的现实意义。
In the 21st century, mankind is facing an increasingly serious energy crisis. Energy conservation is an inevitable means of sustained development in our country and even in the world. The power industry is not only an important energy production sector, but also a large energy consumer. The power loss of the power system is quite huge in the process of sending, supplying and consuming electricity. The total amount of integrated power loss in our country is as high as 3000 to 370 billion KWh It is of great practical significance to tap the potential of electric power saving, reduce the power system loss and improve the economic benefits of power supply.