毕业设计说明书---110kV变电站的设计

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1、 I 摘摘 要要 本文首先根据任务书上所给系统与线路及所有负荷的参数， 分析负荷 发展趋势。从负荷增长方面阐明了建站的必要性，然后通过对拟建变电站 的概括以及出线方向来考虑，并通过对负荷资料的分析，安全，经济及可 靠性方面考虑，确定了 110kV，35kV，10kV 以及站用电的主接线，然后又 通过负荷计算及供电范围确定了主变压器台数，容量及型号，同时也确定 了站用变压器的容量及型号，最后，根据最大持续工作电流及短路计算的 计算结果，对高压熔断器，隔离开关，母线，绝缘子和穿墙套管，电压互 感器，电流互感器进行了选型以及防雷的设计。在设计过程中，初步体现 了工程设计的精髓内容，如根据规程选择方案

2、、用对比的方法对方案评价 等。从而完成了 110kV 变电站的设计 通过本次设计，深化了我们在工程中运用所学的专业知识，使自己将 书本上的知识融入到工程设计的实际运用之中，拉近了理论与实际的距 离，同时也为今后走向工作岗位奠定了夯实的基础。 关键字：变电站设计；负荷分析；短路电流计算；无功补偿； 变压器保护整定 II Abstract Abstract In this paper, on the basis of the mandate given by the system and the load line and all the parameters, load analysis of

3、trends. Load growth from the establishment of the need to clarify, and then through the proposed substation on the broad direction and the Chuxian to consider and, through the load data analysis, security, economic and reliability considerations, identified 110 kV, 35kV, 10kV And the main electricit

4、y station wiring, and then through the load calculation and determine the scope of the main electricity transformer Number, capacity and models, but also identify the station transformer capacity and models, finally, in accordance with maximum sustained work of current and short-circuit the calculat

5、ion The results of the high-voltage fuse, isolating switch, bus, and through walls insulator casing, voltage transformers, current transformers for the selection and design of the mine. In the design process, preliminary engineering design embodies the essence of content, such as options based on a

6、point of order, compared with the method of evaluation of the programme. Thus completing the 110 kV Substation Design Through this design, we have deepened the project by the use of the expertise, so that their books will be on the integration of knowledge to the practical application of engineering design , Narrowing the gap between theory and practice, but also for the future to strengthen the work laid the foundation KeywordKeywords s: : substation design; load an