东北农业大学学士学位论文220kV变电所电气二次设计Electrical secondary design of 220kVsubstation所在院系：所学专业：研究方向：东北农业大学中国·哈尔滨220kV变电所电气二次设计摘要我国人均生活水平不断在提高，整体国民素质也在转变，朝着更高效化的日常生活而去，所以对于安全用电以及电力系统的稳定性的研究是非常必要的。我国城乡电网普及范围越发广泛，从而以220kV为主的变电站越来越多。但不同的地区其地貌环境皆有不同，所以建立条件不齐全，那么如何去解决这样一个问题便是本次毕业设计的主要目的。变电站作为电力系统核心构成部分，变电站的运行安全与国民经济条件成正比。本次设计过程应符合任务书上的要领，取一段电路负荷情况进行计算并表明建立变电站的作用，从而确立了220kV变电站的二次部分设计，但建站的前提就是必须保证变电站的合理性、安全性、经济实惠。关键词：220kV变电站二次部分设计220kV变电所电气二次设计AbstractChina's per capita living standard is constantly improving,and the overall quality of thepeople is also changing,moving towards a more efficient daily life,so it is very necessary tostudy the safe electricity use and the stability of the power system.China's urban and ruralpower grid is becoming more and more widespread,so there are more and more substations,mainly 220kV.However,different areas of their geomorphic environment and environmentare different,so the establishment conditions are not complete,so how to solve such aproblem is the main purpose of this graduation design.As the core part of the power system,the operation safety of the substation is directly proportional to the national economicconditions.The design process should conform to the essentials of the task book,take acircuit load to calculate and show the role of the establishment of the substation,so as toestablish the secondary part of the 220kV substation design,but the premise of theconstruction of the station is to ensure the rationality,safety and economy of the substation.Key words:220kV,substation,secondary part design