文档介绍：. …. .
中国矿业大学银川学院
2012 届本科毕业设计(论文)
题目马鞍山煤矿供电系统设计
所在系机电动力与信息工程系
专业班级工业工程4班
姓名孙东
指导教师孟庆春
教务处制
马鞍山煤矿供电系统设计
Ma an shan coal power supply system design
毕业设计(论文)共 32 页
完成日期:2012年5月10日
答辩日期:2012年5月17日
摘要
随着科技的不断发展和社会的全面进步,人民生活水平提高,电力能源已深入到了人们的日常生活和工作中去,对电力工业的发展及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、保护与电脑设备管理于一体的现代化工厂供用电系统。本设计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,保证提高用电可靠性和经济运行。
关键词:供电系统;负荷计算;变压器;短路计算
Abstract
Along with the science and technology unceasing development and the overall social progress, people's living standards, electric energy has already deeply on People's Daily life and work, to the development of the electric power industry and the related problems of the research are endless.
Based on the current our country electric power industry rapid development,based on the status of the new factory development actual requirements, and promote "safety, high efficiency, energy saving" the policy, set the substation, power distribution, lighting, automatic control and adjustment, computer equipment and lightning protection management in a modern factory power supply system. This design which it calculates the power load by demanding of coefficient method, and signed an agreement on utility, sure power level. According to the actual needs of the factory system of reactive pensation, determine putational load installed, will the power load according to the job requirements of the different load into different categories, according to plant development and planning requirements, the choice of two factory with the main transformer, for each other
Keywords: power supply system; load calculation; transformer; short circuit calculation
目录
摘要 I
Abstract Ⅱ
前言 1
1 设计条件 2
2 负荷统计与变压器选择 3
负荷统计 3
变压器的选择 3
3 低压电缆的选择 5
支线电缆 5
干线电缆的选择 6
12
电缆的整定 16