110kv GIS变电站设计.docVIP

PAGE 54 PAGE 55 摘 要 随着市场经济的推进和城市建设的发展，城市电网建设已经成为当前电力建设的重要内容。传统的110kV变电站大部分都采用户外构架布置方式，考虑到城市规划、环保、节约土地资源、减少日常维护工作量等各方面因素，原来的户外构架型式布置的变电站已经不能满足要求，放置于户外的变压器所产生的噪声及户外设备与城市景观的不协调也成为比较突出和亟待解决的问题。相对于常规变电站，SF6气体绝缘全封闭组合电器GIS（Gas Insulation Switchgear）装置技术属国内领先，并且具有占地少、建设快、结构紧凑、环境适应能力强、检修周期长、运行安全可靠等诸多优点。因此，全户内GIS变电站设计模式将逐步成为变电站设计的首选。 本文以某110kV GIS变电站工程设计为课题，详细描述了全户内GIS设计模式下变电站的电气主接线设计、短路计算、设备选择、继电保护、配电装置、站用电设计等方面的内容。通过综合分析表明，在当前的发展形势下，采用全户内GIS布置的变电站已成为未来电网建设的趋势。 关键词：GIS，电气主接线，开关柜，继电保护 ABSTRACT With the market economy promotion and the development of urban construction, urban power grid construction has become an important aspect of power construction. Oita traditional use 110kV outdoor substation layout framework, taking into account the urban planning, environmental protection, conservation of land resources and reduce the workload of day-to-day maintenance and other factors, the original layout of the outdoor substation type frame can no longer meet the requirements placed on the outdoor noise generated by transformers and outdoor equipment and lack of co-ordination of the urban landscape has become more prominent and urgent problems. Compared to conventional substations, SF6 gas-insulated GIS （Gas Insulation Switchgear） is a national leader in device technology, and has an area of small, fast construction, compact structure, strong ability to adapt to the environment, maintenance cycle length, such as safe and reliable operation advantages. Therefore, all indoor GIS substation design pattern will gradually become the preferred substation design. In this paper, a 110kV GIS substation engineering design for the subject, a detailed description of the entire indoor GIS substation design mode, the main electrical wiring design, short circuit calculation, equipment selection, relay protection, power distribution devices, power stations and other aspects of the design through comprehensive analysis of development in the current circumstances, the use of GIS within the plenar