35KV无人值守变电站设计本科毕业论文内涵主接线图.doc

河南城建学院本科毕业设计（论文） 摘要 摘 要 随着我国工业的发展，各行业对电力系统的供电可靠性和稳定性的要求日益提高。变电站是连接电力系统的中间环节，用以汇集电源、升降电压和分配电能。变电站的安全运行对电力系统至关重要。 35kV变电所综合自动化系统主要为无人值班形式，其设计应服从电网调度自动化的总体设计，其配置、功能包括设备的布置应满足电网安全、优质、经济运行以及信息分层传输、资源共享的原则。因此,本次设计我们将以此作为设计指导原则展开设计工作。 整个设计过程包括变电站电气主接线的设计和选择、短路电流的计算、主变压器和电器设备的选择。其中电器设备的选择主要包括：断路器、隔离开关、电流互感器、电压互感器、母线导体、避雷器、高压熔断器等。本设计简单介绍了采用综合自动化设备实现变电站无人值班。 关键词： 降压变电站， 电气部分设计， 无人值班， 综合自动化 I 河南城建学院本科毕业设计（论文） Abstract Abstract With the development of our industry, all industries increasing demand for power system reliability and stability. The substation is connected to the intermediate links of the power system to bring together the power, lift voltage and distribution of electric energy. The safe operation of the substation power system is critical. In this paper, the design of the step-down substation 35KV/10KV unattended. The 35kV substation integrated automation system for unattended, its design should be subject to the overall design of the power grid dispatch automation, configuration, features include layout of the equipment shall meet the power grid safety, quality, economy of operation and information layered transmission, sharing of resources principle. Therefore, the design we will use this as the design guidelines to expand the design work. The entire design process including the choice of design and selection of the main wiring of the electrical substation, short-circuit current calculation, the main transformer and electrical equipment. Which the choice of the electrical equipment including: circuit breakers, isolating switches, current transformers, voltage transformers, bus conductors, surge arresters, high voltage fuses, etc.. The simple design of integrated automation equipment unattended substation. Keywords: step-down substations，electrical part of the design，unattended，integrated automation II 河南城建学院本科毕业设计（论文） 目