摘 要该设计是关于工程机械制造厂供电系统及变电所的设计。设计的思路是依据国家规范要求以及该厂二类负荷对供电可靠性的要求， 制定设计方案及供电措施。该企业的供电系统由一条35KV 高压进线和一条10KV 高压进线电源提供，为确保负荷供电的可靠性，在高压侧又设有“单母线分段制”的电源供电方式，该设计中采用并联电容器的方法来补偿无功功率，以减少供电系统的电能损耗和电压损失，同时提高了供电电压的质量。设计中体现了安全、可靠、灵活、经济的原则。确定高压变配电所的位置、形式、数量及主变台数与容量等；确定二次继电保护方案，选用先进的自动保护装置；确定变电所防雷过压保护与接地保护方案；根据设计要求，绘制全厂供配电系统图，二次继电保护电路图及高压变配电所平、剖图等。关键字： 供电系统， 安全可靠， 主接线SummaryThe design is the design of the power supply systems and substation construction machinery manufacturer. The design idea is based on the requirements of the national regulatory requirements as well as the plant two types of load on the powersupply reliability to develop the design and supply measures.The power supply system of the enterprise, to ensure the reliability of the load powered by a 35KV high voltage into the line and a of 10KV high pressure into the line supply in the high-pressure side and a single busbar system power supply mode, The design embodies the principle of a safe, reliable, flexible and economic. Determine the position of the high-voltage substation, form, quantity and main transformer station number and capacity; determine the secondary relay program, selection of state-of-the-art automatic protection devices; determine substation lightning overvoltage protection and grounding protection program; according to design requirements, to draw the whole plant to the power supply and distribution system diagram, the secondary protection circuit diagram and high-voltage substation level, cross-sectional...
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