新建边城变110千伏输变电工程设计 说明书（论文）+可行性研究报告+CAD图纸
摘 要
本文旨在探讨湖南花垣县边城镇110kV输变电工程的可行性与设计要点。随着边城镇经济的快速发展，对电力供应的需求日益增长，新建110kV变电站对于满足该地区的电力需求具有重要意义。本研究基于花垣供电公司的电网规划和边城镇电网现状，综合考虑了地形地势、负荷分布、接入条件等因素，确定了新建变电站的最佳站址。通过详细的负荷分析和变压器选择，本工程建议采用终期2台主变的规模建设，并规划了2回110kV线路工程。设计水平年选取2025年，远景水平年设定为2030年，以适应未来电力需求的增长。此外，本文还对电气主接线、短路电流计算、配电装置及电气设备的配置与选择、二次回路部分、所用电设计以及防雷保护等方面进行了全面分析。本研究为边城镇110kV输变电工程的实施提供了科学依据和技术支持。
关键词：110kV输变电工程；变电站设计；负荷分析；变压器选择；电气主接线；短路电流计算
Abstract
This paper aims to discuss the feasibility and design points of 110kV power transmission and transformation project in Bian Town, Huayuan County, Hunan Province. With the rapid economic development in Bian towns and the demand for power supply is increasing day by day, the new 110kV substation is of great significance to meet the power demand of this area. Based on the power grid planning of Huayuan Power Supply Company and the current situation of the border urban power grid, the best site of the new substation is determined. Through detailed load analysis and transformer selection, the project suggests to adopt the scale construction of two main transformers in the final period, and two 110kV line projects are planned. The design level year is selected in 2025, and the vision level year is set at 2030, to meet the future growth of power demand. In addition, this paper also makes a comprehensive analysis of the main electrical wiring, short circuit current calculation, distribution device and electrical equipment, secondary circuit, power design and lightning protection. This study provides scientific basis and technical support for the implementation of 110kV power transmission and transformation project in Bian Town.
Key words: 110kV power transmission and transformation project; substation design; load analysis; transformer selection; electrical main wiring; short-circuit current calculation
目 录
5.2.2 计算各回路电抗（取基准功率Sd = 100MVA Ud=UaV）
