With the continuous development of technology, the traditional power supply system has been unable to meet the growing needs of the technical level.The traditional means of power supply will cause waste of electricity, and can not protect the operating circuit of the system.The DC power supply technology can improve the efficiency of the current electricity and reduce the damage of the power line.On the basis of ensuring the stability of power supply, the technology improves the efficiency of economic operation, improves the utilization of resources in our country, to prevent excessive waste.%随着技术手段的不断进步,我国传统的供电系统已经不能满足日益增长的技术水平需要.传统的供电手段会造成用电浪费,并且不能合理保护系统的运行电路.而直流供电技术能够合理提高用电效率,减轻用电线路的损害,在保证供电稳定基础上,提高经济运行的效率,提高我国的资源使用程度,防止过度浪费.
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