王贝贝论文修改11111111111111.doc

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王贝贝论文修改11111111111111

摘 要 随着人们生活水平的提高,会对电力技术提出更高的要求。我国电力工业的发展至今已有百余年的历史。但为满足人们对电力需求量的增长,电力工业仍处于高速发展中,这就促使电力技术和电力工业进一步向高电压、大机组、大电网的方向发展。由于大电网的出现,为了解决同步发电机之间并列的运行的稳定性问题,又重新采用了直流输电、远距离和大容量输电。为了能更好地合理开发一次能源,减少电力系统的总装机容量,提高供电的可靠性及电能质量,进而形成强大的联合电力系统,更好地为工农业和人民生活服务,就需要建设各种枢纽变电站和区域性供配电站。 本次设计变电站该站的建成,可以满足生产供电要求,在设计过程中考虑到该工业生产发展,并可满足5-10年的远景供电需求。负荷性质一次系统设计为满足其供电可靠性,35kV侧、10kV侧选用单母线分段两台主变压器备用的主接线方式。设计正确选择高压电气设备及导线电缆对继电保护装置进行整定设置负荷计算无功功率补偿、短路电流计算、继电保护整定计算。 变电站; 变压器; 继电保护 Abstract The abstract along with the people living standard enhancement, can set a higher request to the electric power technology. Our country electric power industry development had hundred remaining years of life histories until now. But for satisfied the people to the electric power demand growth, the electric power industry still is in the high speed development, this urged the electric power technology and the electric power industry further to the high voltage, the big unit, the big electrical network direction develops. As a result of big electrical network appearance, in order to solve between the synchronous generator the compound movement stability problem, has used the direct current transmission, the long-distance range and the large capacity electric transmission. In order to can reasonably develop one time well the energy, reduces the electrical power system the total installed capacity, enhances the power supply the reliability and the electrical energy quality, then forms the formidable union electrical power system, well serves for the industry and agriculture and the lives of the people, needs to construct each kind of key position transformer substation and the regional characteristic supplies the power distribution station. This design is always concerning steel factory 35/10 kVs in Dalian to decline the power supply design of pressing the transformer substation. This station completion, may satisfy the urban district production power supply request, considered in the design process industrial production devel

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