湘西新建110KV变电工程初步设计 说明书（论文）+开题报告+CAD图纸
湘西新建110KV变电工程初步设计
摘 要
本文详细阐述了湘西新建110KV变电工程的初步设计过程。文章首先分析了电气主接线方案的选择，包括设计原则、要求和原始资料，通过比较不同方案的可靠性、灵活性和经济性，确定了最优的电气主接线方案。接着，对主变压器和所用变压器的容量、台数及型号进行了选择，并详细说明了所用电源的引接方式和变压器的选择过程。文章还进行了短路电流计算，包括计算目的、一般规定和具体的计算过程。在设备选择与校验部分，文章介绍了导线、断路器、隔离开关、互感器和避雷器的选择和校验方法。此外，文章还涉及了屋内外配电装置的设计和防雷及接地系统的设计。最后，文章对变电站的总体布置进行了规划，包括总平面布置的主要内容和基本原则。本文的研究成果为湘西新建110KV变电工程的顺利实施提供了重要的理论依据和实践指导。
关键词：110KV变电工程；电气主接线；变压器选择；短路电流计算；设备选择与校验
Abstract
This paper expounds the preliminary design process of the new 110KV substation project in western Hunan. This paper first analyzes the selection of electrical main wiring scheme, including the design principles, requirements and original data. By comparing the reliability, flexibility and economy of different schemes, the optimal electrical main wiring scheme is determined. Then, the capacity, number and model of the main transformer and the transformer are selected, and the connection mode of the power supply and the selection process of the transformer are explained in detail. The paper also carries out the short-circuit current calculation, including the calculation purpose, the general provisions and the specific calculation process. In the equipment selection and verification section, the article introduces the selection and calibration methods of wire, circuit breaker, disconnector, transformer and lightning arrester. In addition, the article also involves the design of the internal and outside power distribution device and the design of the lightning protection and grounding system. Finally, the paper plans the overall layout of the substation, including the main contents and basic principles of the general layout. The research results of this paper provide an important theoretical basis and practical guidance for the smooth implementation of the new 110KV power transformation project in western Hunan.
Key words: 110KV substation project; electrical main wiring; transformer selection; short-circuit current calculation; equipment selection and calibration
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