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35kV箱式变电站毕业设计

更新日期:2010-12-11 | 来源:可好网 | 热门量:297
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设计描述:
目 录

摘 要                          I                   
Abstract                       Ⅱ
第1章

绪论······························· 1
1.1 供配电技术的发展

1.2 箱式变电站的类型、结构与技术特点 ··············  1
1.2.1 箱式变电站的类型······················ 1
1.2.2 箱式变电站的结构······················ 1
1.2.3 箱式变电站的技术特点···················· 2
1.2.4 箱式变电站与常规变电站的对比分析·············· 3
1.3 箱式变电站的技术要求与设计规范················ 5
1.3.1 额定值··························· 5
1.3.2 设计和结构························· 6
1.3.3 使用条件·························· 7
1.3.4 箱体要求·························· 8
1.3.5箱式变电站内部电器设备···················  8
1.4 本课题的主要任务······················· 8
第2章 35kV箱式变电站总体结构设计················9
2.1 电气主接线的确定······················· 9
2.1.1 主接线的基本形式······················ 9
2.1.2 箱式变电站对主接线的基本要求················ 9
2.1.3 主接线的比较与选择····················· 10
2.1.4 高压接线方式························ 11
2.2 箱式变电站箱体的确定····················· 11
2.2.1 箱体的结构的确定…····················· 11
2..2.2 合理配置·························  11
2.3 变压器···························· 12
2.3.1 变压器容量、接线组别的确定················· 12
2.3.2 变压器的散热处理······················ 13
2.3.3 用负荷开关—熔断器组合电器保护变压器············ 13
2.4 箱式变电站总体布置······················ 14
第3章 35kV箱式变电站一次系统设计及设备选型·········· 15
3.1 主电路设计·························· 15
3.1.1 概述···························· 15
3.1.2 一次系统设计原则······················ 15
3.1.3 一次系统设计······················     15
3.2 设备选型··························· 16
3.2.1 箱式变电站设备选型应注意的方面··············· 16
3.2.2 设备选型的基本原理····················· 17
3.2.3 高低压电器设备选择的要求·················· 18
3.2.4 断路器的选型······················     19
3.2.5 熔断器的选型························ 19
3.2.6 互感器的选型························ 21
3.2.7 隔离开关的选型······················· 22
3.2.8 开关柜的选型························ 22
第4章 35kV箱式变电站二次系统设计··············    23
4.1 电气二次系统设计······················· 23
4.1.1 二次系统定义及分类····················   23
4.1.2 电气测量仪表························ 23
4.1.3 二次系统设计························ 23
4.2 二次系统总体方案······················· 24
4.3 断路器控制与信号回路····················· 25

4.3.1 概述···························· 25

4.3.2 控制回路设计························ 26
4.3.3 信号回路设计························ 26
4.4 电气测量与信号系统······················ 26
第5章 箱式变电站智能监控功能设计················28
5.1 箱式变电站的监控内容····················· 28
5.1.1 电量监测与保护····················       28
5.1.2 防凝露保护························· 28
5.1.3 变压器室温度保护5.1.4 参数在线数字化显示和设定······· 28
5.1.5 系统组网与集中化管理·················       29
5.2. 配电网自动功能·······················  29
5.3 箱式变电站的智能监控方案··················· 30
5.3.1 硬件设计原理························ 30
5.3.2 软件设计原理··················             30
结束语······························ 32
参考文献···························     33
致谢····························       34
附录 A 箱式变电站总体布置
附录 B 电气主接线图
附录 C 35kV线路控制回路图
附录 D 10kV线路控制回路图

 

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