电气工程及其自动化专业论文.docx

This manuscript was revised on November 28, 2020
电气工程及其自动化专业论文
毕业设计说明书
110kV变电站一次部分电气设计
毕业设计（论文）任务书
姓ly affects the safety and economic operation. To be designed in this paper is a step-down substation substation in the system plays the role of aggregation and distribution of electric energy, charged with the factory to the region, the important task of rural electrification. The completion of the substation will not only strengthen the local power grid network structure, but also for the local industrial and agricultural production provides enough power, so that the regional power grid so as to achieve safe, reliable and economic operation purposes.
The paper "110kv substation once part of the electrical design," the first original data through the analysis and selection based on total load of the substation main transformer, the main wiring under both economical and reliable, flexible operation requirements, select the main connection of two programs to be selected A technical comparison, out of poor program to determine the main electrical substation connection program.
Second, the short-circuit current calculation, obtained from the three-phase short circuit calculation occurs when short-circuit the voltage level of the bus, its steady-state current and the impact of short-circuit current value. According to the results and the voltage level of voltage and maximum continuous operating current of the main electrical equipment selection and validation (including circuit breaker, disconnecting switch, current transformer, voltage transformer, etc.).
Finally, the main draw of the electrical wiring diagram, electrical general layout map, lightning protection and other related design layout plan drawings.
Keywords
Electrical main wiring design; short-circuit current calculation; electrical equipment selection; design drawings
目 录
第1章 设计的内容和要求
原始资料分析
1、变电