1、 I 摘摘 要要 随着科技的不断发展和社会的全面进步，人民生活水平不断提高，电力能 源已深入到了人们的日常生活和工作中去，对电力工业的发展极其相关问题的 研究层出不穷。 基于目前我国电力工业飞速发展的现状，结合新型工厂发展的实际要求， 倡导“安全、高效、节能”的方针，集变电、配电、照明、自动控制与调节、 建筑防雷与保护、电脑设备管理于一体的现代化工厂供用电系统。本设计在充 分调查工厂符合设备的情况下，采用需要系数法计算全厂电力负荷，据此与电 业部门签订协议，确定供电等级。按照工厂的实际要求进行系统的无功补偿， 确定视在计算负荷，将全厂电力负荷按其工作要求的不同分为不同负荷类别， 根据工厂发展和
2、规划要求，选择两台厂用主变压器，互为备用的方式相接，保 证供电的可靠性。绘制系统主接线图，优选厂区电气设备，根据发热和稳定性 要求进行校验，最后确定防雷保护和接地措施，保证提高用电可靠性和经济运 行。 关键词：关键词：供电系统，负荷计算，短路计算，变压器，防雷设计 II AbstractAbstract With constant development of science and technology and the progressing in an all-round way of the society, the living standards of the people are
3、improving constantly, the electric energy has already got deeply to our daily life and work, the study on extremely relevant problems of development of power industry emerges in an endless stream . It is on the basis of the current situation that the power industry of our country develops at full sp
4、eed at present to originally design, combine the actual demand for development of new-type factory, advocate the policy of “ safe , high-efficient , energy-conservation “, collect the switchyard , distribution , illumination , automatically control and regulate , the building defend thunder , protection , computer equipment control and offer the power consuming system in the integrative modern chemical plant. Originally design in case of fully
