高电压论文xxx-副本讲述.doc

高电压论文 题目：220KV变电站防雷综合保护的研究与设计 班级：电气自动化本科一班 姓名：马xx 学号：xxxxxx 摘要变电所是电力系统中对电能的电压和电流进行变换、集中和分配的场所，它担负着从电力系统送电，经过变压，然后配电的任务。显然，变电所是供电系统的枢纽，在供电系统中占有重要的地位。正因为变电所在电力系统的重要性，保证变电所的安全可靠运行的工作就显得十分重要。雷电防护问题是变电所不安全因素之一，如果变电所发生雷击事故，将造成大面积的停电。给社会生产和人民生活带来不便，所以变电所成为电力系统中防雷的重要保护部位。为了保证变电所的安全运行就要求防雷措施必须十分可靠。变电所要做到达到防雷标准的合格，必须对变电所的各个部分进行防雷保护。其中包括变电所的直击雷防护、变电所对感应雷的防护、变电所的进线防雷、变压器及其他配电设备的雷电防护、变电所的整体防雷接地。只有做好各个部分的防雷措施才能保证变电所安全运行。 关键词：变电所；防雷；变压器；接地Abstract Lightning is a discharge phenomenon of a majestic and with lightning and thunder is a bit daunting. Lightning produced in convection development strong cumulonimbus clouds, so often accompanied by a strong gust of wind and rain, sometimes accompanied by hail and tornado. Substation is the power system to the electric energy of the voltage and current of the transformation, concentration and distribution of the place, it is charged from the power system to send electricity, through the transformer, and then power distribution. Obviously, the power supply system is the key of the power supply system, which plays an important role in the power supply system. Because of the importance of the power system, it is very important to ensure the safe and reliable operation of substation. Lightning protection is one of the unsafe factors in substation. If the lightning accident occurred in the substation, it will cause a large area of power failure. To the social production and peoples life brings inconvenience, so the electric power system has become an important part of lightning protection in power system. In order to ensure the safe operation of substation, lightning protection measures must be very reliable. Substation to achieve lightning protection standards, must be on all parts of the substation lightning protection. Including the transformer substation lightning protection, substation are on the induction lightning protection, substation of in lightning protection of line lightning protection, transformer and other power d