500KV变电站电气部分设计.doc

摘要本论文主要阐述了 500KV 变电站电气部分的设计。随着我国科学技术的发展,特别是计算机技术的进步,电力系统对变电站的要求也越来越高。变电站作为电能传输与控制的枢纽必须改变传统的设计和控制模式,才能适应现代电力系统、现代化工业生产和社会生活的发展趋势。本设计为 500kV 超高压变电站,为枢纽变电所。 500kV 变电所控制系统的特点是可靠性要求更高、被控制的对象多、控制对象的距离远、控制电缆用量大,要求自动化水平高和抗干扰问题突出。本设计讨论的是 500KV 变电站电气部分的设计。其中包括负荷计算、无功补偿、变电所位置的选择及变压器的选择、主接线设计、短路计算及电气设备的选择与校验、继电保护设计,还包括防雷设计等。关键词变电站超高压 500kV Abstract This paper expatiate onthe part of500kV electrical substation design . With the development ofscience and technology inChina ,puting technology has advance d,the power system demands onsubstation more and more. Substation asahub for power transmission and control tochange the traditional design and control mode, toadapt tothe modern power system, modernization ofindustrial production and the development trend ofsocial life. The transformer substation that isdesigned this time isthe key position transformer substation of500kV. Itisthe hub ofSubstation .500 kVsubstation control system ischaracterized byhigher reliability requirements, the object ofcontrol, and control ofthe object distance and the amount ofcontrol cable, and require ahigh level ofautomation and anti-jamming problems. The design is refer tothe part of500kV electrical substation design. Whole book primarily contain , calculation of power load , reactive power expiation , location of electric station and choice transformer and design the main wiring and short-circuit calculation and choice and test of electric equipments and the design of protective relays and the design ofpreventing thunder ,etc. KEY WORD Substation EHV 500kV 目录第一章绪言............................................................................................................................. 1 第一节超高压变电站发展概况............................................................................................. 1 第二节选题目的……............................................................................................................. 2 第三节背景和意义……..............................................................................