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1、成都理工大学工程技术学院毕业论文某车间低压配电系统及车间变电所设计作者姓名:黄楷专业名称:电气工程及其自动化指导教师:雷永锋 讲师某车间低压配电系统及车间变电所设计摘要电能是工业生产的主要动力能源，工厂供电设计的任务是从电力系统取得电源，经过合理的传输、变换、分配到工厂车间中每一个用电设备上，随着工业电气自动化技术的发展，工厂用电量快速增长，对电能质量、供电可靠性以及技术经济指标等的要求也日益提高，供电设计是否完善，不仅影响工厂的基本建设投资、运行费用和有色金属消耗量，而且也反映到工厂的可靠性和工厂的安全生产上，它与企业的经济效益、设备和人身安全等是密切相关的。现在除个别大型工业联合企业有自备
2、电厂外，绝大多数工厂都是从国家电力系统取得电能的，因此，工厂工业负荷是电力系统的主要用户，工厂供电系统也是电力系统的一个组成部分，保证安全供电和经济运行，不仅关系到企业的利益，也关系到电力系统的安全和经济运行以及合理利用能源。工厂供电设计方案必须安全、可靠、优质、经济这些条件。本论文为某车间低压配电系统及车间变电所设计，该车间的主变压器容量为630kVA，各电压等级分别为10kV和0.4kV，车间的负荷均属三类负荷，本设计的主要内容包括：车间的负荷计算及无功补偿，确定车间变电所的所址和型式，车间变电所的主纬线方案，短路电流计算，主要用电设备选择和校验，车间变电所整定继电保护和防雷保护及接地装置
3、的设计等。关键词:安全供电 经济效应 合理利用AbstractElectrical energy is the main motivate part of the industrial production. Factories supply power design duty to obtain power source from the electrical power system, pass through the reasonable transmission, transformation, and assigns to the factory workshop in on eac
4、h current collector. Along with the industry electricity automation technology development, factories with the electric quantity rapid growth, to the electrical energy quality, the power supply reliability as well as the technology economic indicator and so on the request also day by day enhances. T
5、he power supply designs whether consummates, not only affects the factory the capital investment, the operating cost and the non-ferrous metal consumption, moreover also reflected to the factory power supply reliability and in the factory safety in production, it and enterprises economic efficiency,
6、 the equipment and so on is the close correlation .Now has besides the individual major industry integrated enterprise supplies for oneself the power plant, the majority factory all is obtains the electrical energy from the country electrical power system. Therefore, the factory industry load is the
7、 electrical power system main user, the factory power supply system also is an electrical power system constituent, guarantees the safe power supply and the economical movement, not only relates the enterprise the benefit, also relates the electrical power system the security and the economical move
8、ment as well as the reasonable use energy .The factory power supply design must follow nation each general and specific policies, the design proposal must conform to in the nation standard related stipulation, simultaneously must satisfy following several basic requests:Securities-in the electrical
9、energy supply, Reliable-should satisfy the electrical energy user to the power supply reliable request, High quality, low operating cost, and saves the electrical energy and the reduced non-ferrous metal consumption as far as possible .In addition, in the power supply work, should reasonably process
10、 the bureau and the overall situation, current and is long term and so on the relations，both must consider partial and the current benefit, and must have the total view, can take the entire situation into account, adaptation development. This instruction booklet repairs a vehicle the low electrical
11、power distribution systems for some mechanical factory electricity and the workshop transformer substation design explanation. This workshop main transformer capacity is 630kVA, various voltages rank respectively is 10kV and 0.4kV, the workshop load is three kinds of loads. According to designs the
12、project description the request, this design main content includes: The workshop load computation and the idle work compensate; definite workshop transformer substation institute site and pattern; Workshop transformer substation host electric coil plan; Short-circuit current computation; mainly curr
13、ent collector choice and verification; Workshop transformer substation setup UPS and anti-radar protection and grounding design and so on .Key Words: safe electricity supply，economic effect，wise use目录摘要IAbstractIII目录V前言11车间的负荷计算及无功补偿41.1车间设备明细统计表41.2 工具、机修车间设备负荷计算表61.3 装机容量、计算负荷、无功负荷、视在负荷的计算62、确定车间变
14、电所的所址和形式123、车间变电所无功补偿，主变型式、容量和台数及主结线选择方案134、短路计算与一次设备选择184.1配电系统短路计算电路图184.2计算低压380KV母线上K2点的三相短路电流和短路容量205.车间变电所高、低压进出线截面（包括母线）的选择225.1各回路容量、电流225.2确定变压器低压侧主出线截面选择225.3变压器高压侧进线电缆截面选择235.4低压出线及设备选择校验245.4.1 P1配电屏设备校验245.4.2 P2配电屏设备校验245.5负荷选择256、变电所电源进线的二次回路选择与继电保护的整定276.1测量与指示276.2继电保护277.变电所的防雷保护与接
15、地装置的设计297.1防直击雷297.2避雷器的选择(防雷电波)298.其他系统318.1 10kV 供电系统318.2 400V配电装置318.3 照明检修系统328.4 防雷接地系统328.4.1接地系统328.4.2 防雷系统338.5电缆和电缆构筑物338.5.1 10kV动力电缆338.5.2 0.4kV动力电缆338.5.3 仪用变压器电缆338.5.4 电缆连接装置338.5.5 电缆设施338.5.6电缆构筑物348.5.7电缆防火阻燃348.6 电压降34总结35致谢36参考文献37附件 电气主接线图38附件 变压器继电保护图39I前言低压配电由配电变电所（通常是将电网的输电电压降为配电电压）、高压配电线路（即1kV以上电压）、配电变压器、低压配电线路（1kV以下电压）以及相应的控制保护设备组成。1.低压断路器：低压断路器又称自动开关，它是一种既有手动开关作用，又能自动进行失压、欠压、过载、和短路保护的电器。它可用来分配电能，不频繁地启动异步电动机，对电源线路及电动机等实行保护，当它们发生严重的过载或者短路及欠压等故障时能自动切断电路，其功能相当于熔断器式开关与过欠热继电器等的组合。而且在分断故障电流后一般不需要变更零部件，因此获得了广泛的应用。2. 智能配电 :(1) 低
