33295字
摘要

本設(shè)計(jì)針對(duì)“FYJ”高層商住綜合大廈供電配電系統(tǒng)設(shè)計(jì)的要求，首先對(duì)大廈的功能設(shè)計(jì)進(jìn)行總體分析，接著對(duì)負(fù)荷，短路電流，無功功率補(bǔ)償?shù)冗M(jìn)行了計(jì)算，對(duì)主要的電氣設(shè)備進(jìn)行了保護(hù)，對(duì)變壓器進(jìn)行了瓦斯保護(hù)和電流速斷保護(hù)，對(duì)防雷接地進(jìn)行了設(shè)計(jì)，最后對(duì)電力行業(yè)的發(fā)展進(jìn)行了展望。
“FYJ”高層商住綜合大廈中住宅用電負(fù)荷—三級(jí)，群樓取照明負(fù)荷—三級(jí)，群樓一般動(dòng)力負(fù)荷—三級(jí)，客梯、扶梯、消防泵、樓梯照明，事故照明重要負(fù)荷—一級(jí)。采用標(biāo)幺制法進(jìn)行短路計(jì)算，采用10kV電壓等級(jí)作供電源，低壓配電系統(tǒng)采用380/220V電壓等級(jí)，即電壓選擇為10KV/0.38KV/0.22KV,采用一路10KV專用架空線路作為主電源，選用一臺(tái)環(huán)氧樹脂澆鑄變壓器出線,柴油發(fā)電機(jī)作為第二電源, 瓦斯保護(hù)和電流速斷保護(hù)相配合構(gòu)成完整的變壓器保護(hù)，大廈過電壓保護(hù)裝置選擇氧化鋅（ZnO）避雷器，采用TN-S接地形式，接地保護(hù)線PE與中性線（工作接地）嚴(yán)格分開，只在配電房連接并接地。這些構(gòu)成了完整的大廈供電配電系統(tǒng)設(shè)計(jì)。

關(guān)鍵詞：短路電流，輸電線路，變壓器，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 錄

摘要……………………………………………………………………………Ⅰ
緒論………………………………………………………………………………1
第1章 概述………………………………………………………………………2
1.1“FYJ” 高層商住綜合大廈簡(jiǎn)介……………………………………………2
1.2“FYJ”高層商住綜合大廈功能說明………………………………………2
1.3 建筑電氣部分的簡(jiǎn)介……………………………………………………2
第2章 負(fù)荷分級(jí)分類設(shè)計(jì)……………………………………………………3
1.1引言…………………………………………………………………………3
1.2 計(jì)算負(fù)荷統(tǒng)計(jì)分類………………………………………………………3
1.3負(fù)荷分級(jí)……………………………………………………………………5
1.4短路電流計(jì)算………………………………………………………………6
第3章 供配電系統(tǒng)……………………………………………………………11
3.1引言…………………………………………………………………………11
3.2高壓配電系統(tǒng)……………………………………………………………12
3.3低壓配電系統(tǒng)……………………………………………………………16
3.4電壓選擇和電能質(zhì)量……………………………………………………18
第4章 電氣設(shè)備的選擇………………………………………………………20
4.1引言………………………………………………………………………20
4.2 配電變壓器選擇…………………………………………………………20
4.3 自備應(yīng)急電源的選擇……………………………………………………22
4.4高壓開關(guān)柜的選擇………………………………………………………24
4.5低壓配電屏的選擇………………………………………………………24
第5章 無功功率補(bǔ)償…………………………………………………………25
5.1引言…………………………………………………………………………25
5.2 無功補(bǔ)償?shù)挠?jì)算、原則和途徑…………………………………………25
第6章 保護(hù)的設(shè)計(jì)……………………………………………………………28
6.1電力變壓器的保護(hù)………………………………………………………28
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