GeneralRequirementsToConstructionOfSubstation变电站建设的一般要求大学毕业论文外.doc

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GeneralRequirementsToConstructionOfSubstation变电站建设的一般要求大学毕业论文外.doc

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　　毕业设计（论文）　　外文文献翻译文献、资料中文题目：变电站建设的一般要求文献、资料英文题目： General Requirements toConstruction of Substation 文献、资料来源：文献、资料发表（出版）日期：院（部）：专业：班级：姓名：学号：指导教师：翻译日期： 2017. 02. 14 毕业设计（论文）外文资料翻译外文出处 International journal of　electrical power and energy systems General Requirements to Construction of Substation Carpentier J; Optimal Power Flows 　　《International journal of electrical power and energy systems》 , EISCI 2011 　　Feb 　　Substations are a vital element in a power supply system of industrialenterprises． They serve to receive ， convert and distribute electric energy .Dependingon power and purpose ,the substations are divided into central distribution substationsfor a voltage of 110-500kV;main step-down substations for110-220/6-10-35kV;deepentrance substations for 110-330/6-10kV;distribution substations for 6-10kV;shoptransformer substations for 6-10/0.38-0.66kV.At the main step-down substations, theenergy received from the power source is transformed from 110-220kV usually to6-10kV(sometimes 35kV) which is distributed among substations of the enterpriseand is fed to high-voltage services. 　　Central distribution substations receive energy from power systems anddistribute it (without or with partial transformation) via aerial and cable lines of deepentrances at a voltage of 110-220kV over the enterprise territory .Central distributionsubstation differs from the main distribution substation in a higher power and in thatbulk of its power is at a voltage of 110-220kV;it features simplified switching circuitsat primary voltage; it is fed from the power to an individual object or region .Low-andmedium-power shop substations transform energy from 6-10kV to a secondaryvoltage of 380/220 or 660/380. 　　Step-up transformer substations are used at power plants for transformation ofenergy produced by the generators to a higher voltage which decreases losses at along-distance transmission .Converter substations are intended to convert AC to DC(sometimes v