发布时间 : 星期六 文章110Kv变电站电气主接线设计毕业设计论文更新完毕开始阅读00ae3a11c4da50e2524de518964bcf84b8d52d56
Abstract
110kV变电站电气主接线的初步设计
摘 要
根据设计任务书的要求，本次设计为110kV变电站电气主接线的初步设计，并绘制电气主接线图。该变电站设有两台主变压器，站内主接线分为110kV、35kV和10kV三个电压等级。110KV电压等级采用双母线接线，35KV和10KV电压等级都采用单母线分段接线。
本次设计中进行了电气主接线的设计、短路电流计算、主要电气设备选择及校验（包括断路器、隔离开关、电流互感器、电压互感器、母线、熔断器等）、各电压等级配电装置设计。
本设计以《35～110kV变电所设计规范》、《供配电系统设计规范》、《35～110kV高压配电装置设计规范》等规范规程为依据，设计的内容符合国家有关经济技术政策，所选设备全部为国家推荐的新型产品，技术先进、运行可靠、经济合理。 关键词：降压变电站；电气主接线；变压器； 设备选型； 无功补偿
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Abstract
Abstract
From the guide of engineering design assignment, we have to design primary power-system of 110kV substation and draw main electrical one-line diagram. There are two main transformer in the substation in which main electrical connection can be divided into three voltage grades: 110kV, 35kV with 10kV.It deposits sectionalized single bus bar scheme per grade.
There is also a design for main electrical connection in this engineering, the calculation for short-circuit electric current, the selection of electrical device and calibration (including circuit breaker, isolator, current transformer, potential transformer ,bus bar etc.) and the design for distribution installation per. voltage grade, direct current system and lightning protection is also included
Keywords:transformer substation; electrical main wiring; transformer; equipment type selection; reactive-load compensation
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目录
目 录
摘要 ······························ Ⅰ Abstact ····························· Ⅱ
1 变电站电气主接线设计及主变压器的选择 ············· 1.1 主接线的设计原则和要求 ················· 1.1.1 主接线的设计原则 ·················· 1.1.2 主接线设计的基本要求 ················ 1.2 主接线的设计 ······················ 1.2.1 设计步骤 ······················ 1.2.2 初步方案设计 ···················· 1.2.3 最优方案确定 ···················· 1.3 主变压器的选择 ····················· 1.3.1 主变压器台数的选择 ················· 1.3.2 主变压器型式的选择 ················· 1.3.3 主变压器容量的选择 ················· 1.3.4 主变压器型号的选择 ················· 1.4 站用变压器的选择 ····················· 1.4.1 站用变压器的选择的基本原则 ············· 1.4.3 站用变压器型号的选择 ················2 短路电流计算 ························· 2.1 短路计算的目的、规定与步骤 ··············· 2.1.1 短路电流计算的目的 ················· 2.1.2 短路计算的一般规定 ················· 2.1.3 计算步骤 ······················ 2.2 变压器的参数计算及短路点的确定 ············· 2.2.1 变压器参数的计算 ·················· 2.2.2 短路点的确定 ···················· 2.3 各短路点的短路计算 ··················· 2.3.1 短路点d-1的短路计算(110KV母线) ··········Ⅲ
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目录
2.3.2 短路点d-2的短路计算(35KV母线) ··········· 13 2.3.3 短路点d-3的短路计算(10KV母线) ··········· 13 2.3.4 短路点d-4的短路计算 ················ 14 2.4 绘制短路电流计算结果表 ················· 14 3 电气设备选择与校验 ······················ 16 3.1 电气设备选择的一般规定 ················· 3.1.1 一般原则 ······················ 3.1.2 有关的几项规定 ··················· 3.2 各回路持续工作电流的计算 ················ 3.3 高压电气设备选择 ···················· 3.3.1 断路器的选择与校验 ················· 3.3.2 隔离开关的选择及校验 ················ 3.3.3 电流互感器的选择及校验 ··············· 3.3.4 电压互感器的选择及校验 ··············· 3.3.5 熔断器的选择 ····················定义书签。
3.4 母线与电缆的选择及校验 ················· 3.4.1 材料的选择 ····················· 3.4.2 母线截面积的选择 ·················· 3.4.3 10KV出线电缆的选择 ·················4 无功补偿设计 ························· 4.1 无功补偿的原则与基本要求 ················ 4.1.1 无功补偿的原则 ··················· 4.1.2 无功补偿的基本要求 ················· 4.2 补偿装置选择及容量确定 ················· 4.2.1 补偿装置的确定 ··················· 4.2.2 补偿装置容量的选择 ·················
致谢 ······························参考文献 ····························附录 ······························
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