某市“fyj”高层商住(综合)大厦10kv配电房毕业设计论文.doc

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某市“fyj”高层商住(综合)大厦10kv配电房毕业设计论文,33295字摘要本设计针对“fyj”高层商住综合大厦供电配电系统设计的要求,首先对大厦的功能设计进行总体分析,接着对负荷,短路电流,无功功率补偿等进行了计算,对主要的电气设备进行了保护,对变压器进行了瓦斯保护和电流速断保护,对防雷接地进行了设计,最后对电力行业的发展进行了展望。“fyj”高层商住综合大厦中住宅用电负荷—...
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分类: 论文>电气自动化/电力论文

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33295字
摘要

本设计针对“FYJ”高层商住综合大厦供电配电系统设计的要求,首先对大厦的功能设计进行总体分析,接着对负荷,短路电流,无功功率补偿等进行了计算,对主要的电气设备进行了保护,对变压器进行了瓦斯保护和电流速断保护,对防雷接地进行了设计,最后对电力行业的发展进行了展望。
“FYJ”高层商住综合大厦中住宅用电负荷—三级,群楼取照明负荷—三级,群楼一般动力负荷—三级,客梯、扶梯、消防泵、楼梯照明,事故照明重要负荷—一级。采用标幺制法进行短路计算,采用10kV电压等级作供电源,低压配电系统采用380/220V电压等级,即电压选择为10KV/0.38KV/0.22KV,采用一路10KV专用架空线路作为主电源,选用一台环氧树脂浇铸变压器出线,柴油发电机作为第二电源, 瓦斯保护和电流速断保护相配合构成完整的变压器保护,大厦过电压保护装置选择氧化锌(ZnO)避雷器,采用TN-S接地形式,接地保护线PE与中性线(工作接地)严格分开,只在配电房连接并接地。这些构成了完整的大厦供电配电系统设计。

关键词:短路电流,输电线路,变压器,避雷器

ABSTRACT

This design aims at "FYJ" a high company to live comprehensive the mansion power supply go together with a request that give or get an electric shock system's design, first to the function design of mansion carry on the president's analysis, immediately after to the burden, short-circuit electric current, without achievement power compensate etc. carried on a calculation, to the main electricity equipments carried on a protection, to the transformer carried on gas protection and electric current soon break a protection, connect ground to carry on a design towards defending thunder, finally to the development of electric power profession carried on an outlook.
The "FYJ" high company live comprehensive the residence in the mansion use electricity to carry-x-rated, the cluster building takes illuminate to carry-x-rated, cluster the building is general motive burden-x-rated, guest steps, hand ladder, fire fight pump, stairs illuminate, the trouble illuminate important burden-one class.The adoption mark Mao method for making carry on short circuit calculation, adopt the 10 kV electric voltage grade to make a power supply source, the low pressure goes together with electricity system to adopt the electric voltage grade of the 380/220 V, namely the electric voltage choose for the 10 KV/0.38 KV/0.22 KVand adopt all the way the 10 KV's appropriation build on stilts circuit as main power supply and choose with a set epoxy sprinkle Zhu transformer line, diesel generator conduct and actions the second power supply, gas protection and electric current soon break a protection match each other match constitute integrity of transformer protection, the mansion conducts electricity to press a protection to equip choice butter of zinc(ZnO) lightning arrester, adopt TN-S to connect a geography type and connect a ground of protection line PE and neutral line(the work connect ground) strictly separate, is go together with electricity building conjunction be alongside of ground.These mansions power supplies which constituted an integrity go together with electricity system a design.

Key Words:Short-circuit electric current, transmission line, transformer, lightning arrester


目 录

摘要……………………………………………………………………………Ⅰ
绪论………………………………………………………………………………1
第1章 概述………………………………………………………………………2
1.1“FYJ” 高层商住综合大厦简介……………………………………………2
1.2“FYJ”高层商住综合大厦功能说明………………………………………2
1.3 建筑电气部分的简介……………………………………………………2
第2章 负荷分级分类设计……………………………………………………3
1.1引言…………………………………………………………………………3
1.2 计算负荷统计分类………………………………………………………3
1.3负荷分级……………………………………………………………………5
1.4短路电流计算………………………………………………………………6
第3章 供配电系统……………………………………………………………11
3.1引言…………………………………………………………………………11
3.2高压配电系统……………………………………………………………12
3.3低压配电系统……………………………………………………………16
3.4电压选择和电能质量……………………………………………………18
第4章 电气设备的选择………………………………………………………20
4.1引言………………………………………………………………………20
4.2 配电变压器选择…………………………………………………………20
4.3 自备应急电源的选择……………………………………………………22
4.4高压开关柜的选择………………………………………………………24
4.5低压配电屏的选择………………………………………………………24
第5章 无功功率补偿…………………………………………………………25
5.1引言…………………………………………………………………………25
5.2 无功补偿的计算、原则和途径…………………………………………25
第6章 保护的设计……………………………………………………………28
6.1电力变压器的保护………………………………………………………28
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