本科毕业设计(论文)_110Kv变电站电气一次部分设计_.doc

本科毕业设计（论文） 摘要 PAGE PAGE 68 摘要 本文首先根据任务书上所给系统与线路及相关负荷的参数，通过对负荷资料的分析进行了负荷计算，根据负荷计算结果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，并从安全，经济及可靠性等方面考虑，确定了110kV，35kV，10kV以及站用电的主接线方案。然后，进行了短路电流计算，根据最大持续工作电流及短路计算的计算结果，对高压断路器、隔离开关、电流互感器、电压互感器、母线等主要电气设备进行了选择和校验。之后对变电站的配电装置进行了选择以及电气平面布置设计。最后做了主变压器的保护和变电站的防雷保护，从而完成了110kV变电站电气部分的设计。 关键词：变电站，变压器，主接线，短路电流计算 xxxxxxxx学院本科毕业设计（论文） Abstract Abstract In this article, on the basis of the system the line and the related load parameters given by the mandate, through the analysis of the load data , we have a load calculation, according to the load calculation results ,we ascentuined the quality capacity and models of the main transformer, but also identified the station transform’s capacity and models, considering the security, reliability and economic we identified 110kv, 35kv, 10kv electricity stations and the main cable programmer. Then, made a short-circuit current calculation. In accordance with maximum sustained work current and the short-circuit current calculation results, the high-voltage circuitbreakers, isolation switches, current transformers, voltage transformers, bus and other major electrical equipment had been selected validated .And then made a choice about the devices of the power distribution, substation and did a plane electrical design . Finally we did a main transformer substation protection and a lightning protection, thus the 110 kV electrical substation part of the design had been completed. Key words: substations, transformers , main wiring, short-circuit current calculation xxxxxxxx学院本科毕业设计（论文） 目录 目录 TOC \o 1-3 \h \z \u 第一部分 设计说明书 h 1 1 引言 h 1 2 原始资料 h 2 3 电气主接线的选择 h 4 3.1 电气主接线的基础知识 h 4 3.2 电气主接线的分类 h 5 3.3 电气主接线设计的原则 h 6 3.4 主接线方案的选择 h 7 3.5 站用电接线选择 h 9 4 负荷的计算及主变压器的选择 h 10 4.1 负荷的计算 h 10 4.2 主变压器的选择 h 12 4