文档介绍：110/35/10kV变电站设计
摘要
随着工业时代的不断发展,人们对电力供应的要求越来越高,特别是供电的稳固性、可靠性和持续性。然而电网的稳固性、可靠性和持续性往往取决于变电站的合理设计和配置。一个典型的变电站要求变电设备运行可靠、操作灵活、经济合理、扩建方便。出于这几方面的考虑,本论文设计了一个降压变电站,此变电站有三个电压等级:高压侧电压为110kV,有二回线路;中压侧电压为35kV,有八回出线;低压侧电压为10kV,有十回出线。同时对于变电站内的主设备进行合理的选型。本设计选择选择两台SFSZ10-63000/110主变压器,其他设备如站用变,断路器,隔离开关,电流互感器,高压熔断器,电压互感器,无功补偿装置和继电保护装置等等也按照具体要求进行选型、设计和配置,力求做到运行可靠,操作简单、方便,经济合理,具有扩建的可能性和改变运行方式时的灵活性。使其更加贴合实际,更具现实意义。
关键字:变电站, 设计, 变压器
AbSTRACT
As the continuous development of Industrial Era, people’s demand of power supply increases rapidly, particularly on the stability, reliability and sustainability of power supply. However, those characters of the grid often depend on the rational design and configuration of transformer substation. The equipment of a typical transformer substation is required to satisfy the need of reliable and flexible operation as well as economical and convenient expansion. Take all the factors into considerations, this paper designed a step-down substation, the substation has three voltage levels: high side voltage of 110kV, two back lines; the pressure side of the voltage of 35kV, and eight back outlet; low side voltage to 10kV, with 10 returned to qualify. At the same time the main equipment for the substation reasonable selection. The design choices selected two SFSZ10-63000/110 main transformer and other equipment such as station Transformer, circuit breaker, disconnecting switch, current transformers, high voltage fuses, voltage transformers, reactive pensation devices and protection equipment, etc. also in accordance with the specific requirements of selection, design and configuration, tried to be reliable, simple, convenient, economical, with possibility of extension of time and changing the operating mode flexibility. Make it more fitting real, more practical significance.
KEY WORDS:Substation , design , transformer
第1章前言
随着现代化进程的快速推进,电力工业发展水平和电气化程度是国家国民经济发展的重要标志。我国的电力工业已经进入了大机组、大电厂、大电网、超高压、自动化、信息化发展的新时期。随着人们对电能的需求量日益增加,电能由发电厂发出要经过变压器变压供给用户,