摘要:水电站是电力系统的重要组成部分,它是整个电力系统的电能的来源。
本设计为2台单机容量为12MW的水力发电厂。根据设计任务书上给原始资料,分析并确定水电站的设计方案,进行主接线的设计、短路电流的计算、设备的选择、防雷设计、变压器保护,同时加以相关图纸说明。
本设计结合技术经济指标和供电可靠发展的规划前景选择了设备的容量及其型号,对电站的电气主接线形式、电气设备的选择、负荷参数整定及校验、避雷针选型和校验、变压器继电保护等进行详细的说明。最后通过CAD软件画出水电站的电气主接线图、变压器保护配置图等。
关键词:水电站;主接线;短路计算;设备选择;变压器保护;防雷
ABSTRACT:Hydropower is an important part of power system, is the source of the electric power system.
The design for the 2 stand-alone capacity of 12MW hydraulic power plant. According to the design task book for the original data, analysis and determination of hydropower station design, the main wiring design, short-circuit current calculation, equipment selection, design, lightning protection transformer protection, at the same time be related drawings.
The design of the technical and economic index and reliable power supply development foreground selection of equipment capacity and its model, the electric main wiring forms, the choice of electrical equipment, the load parameter setting and checking, lightning arrester selection and validation, transformer relay protection detail. Finally, through CAD software to draw hydroelectric power station main electrical wiring diagram, diagram of transformer protection configuration.
Keywords: Hydropower station; The Lord wiring; Short circuit calculation; Equipment choice; Transformer protection; Lightning protection
本毕业设计是在我们进行了所有相关的专业课程理论学习和生产现场参观学习之后进行的。通过毕业设计,让我们理论联系实际,系统、全面地掌握所学知识,培养我们分析问题、工程计算和独立工作的能力,让我们树立工程观点、社会主义市场经济观点,初步掌握发电厂电气部分的设计方法,并在计算、分析和解决工程实际问题等方面得到训练,为今后从事电力系统及发电厂有关设计、运行、科研等方面的工作奠定坚实的理论基础。