【正文】 烏海市懿峰工貿(mào)有限 責(zé)任 公司循環(huán)產(chǎn)業(yè)鏈 2300MW煤矸石自備電廠新建工程 電氣設(shè)計(jì) 批 準(zhǔn)： 審 核： 校 核： 編 制： 目 錄 1 概 述 .........................................................................................................................1 工程概述 ..................................................................................................................1 設(shè)計(jì)依據(jù) ..................................................................................................................1 氣象條件 ..................................................................................................................2 地震基本烈度 ..........................................................................................................2 污穢等級(jí) ..................................................................................................................2 設(shè) 計(jì) 范圍 ..................................................................................................................2 2 電氣主接線 .................................................................................................................2 發(fā)電機(jī) 主變壓器回路接線 .....................................................................................3 220kV配電裝置接線 ..............................................................................................4 3 短路電流計(jì)算 .............................................................................................................5 原始數(shù)據(jù) ..................................................................................................................5 短路電流計(jì)算結(jié)果 ..................................................................................................5 4 導(dǎo)體及設(shè)備選擇 .........................................................................................................6 導(dǎo)體及電氣設(shè)備選擇原則 ......................................................................................6 導(dǎo)體和設(shè)備的選型及規(guī)范 ......................................................................................6 5 廠用電接線及布置 ...................................................................................................10 主要設(shè)計(jì)原則 ........................................................................................................10 6kV廠用電接線 ....................................................................................................10 .................................................................................................16 廠用電氣設(shè)備選擇及布置 ....................................................................................28 廠用電壓水平驗(yàn)算 ................................................................................................29 廠用電率 ................................................................................................................29 6 事故保安電源 ...........................................................................................................30 事故保安電源的接線方式 ....................................................................................30 保安負(fù)荷 ................................................................................................................31 柴油發(fā)機(jī)組的選擇 ................................................................................................31 保安電源設(shè)置 布置 ................................................................................................31 脫硫保安段設(shè)置 ....................................................................................................31 交流不停電電源系統(tǒng) ............................................................................................32 7 電氣設(shè)備布置 ...........................................................................................................33 主廠房 A 排外變壓器場(chǎng)地布置 ...........................................................................33 分相封閉母線的布置 ............................................................................................33 共箱封閉母線的布置 ............................................................................................33 220kV配電裝置布置 ............................................................................................33 8 直流電系統(tǒng) ...............................................................................................................33 單元機(jī)組直流電源系統(tǒng) ........................................................................................33 網(wǎng)控直流電源系統(tǒng) ................................................................................................40 輔助車間直流電源系統(tǒng) ........................................................................................40 交流不停電電源（ UPS）系統(tǒng) .............................................................................41 9 二次線、繼電保護(hù)及自動(dòng)裝置 ...............................................................................41 二次線 ....................................................................................................................41 繼電保護(hù) ................................................................................................................44 發(fā)電機(jī)勵(lì)磁系統(tǒng) ....................................................................................................46 10 過電壓保護(hù)及接地 .................................................................................................46 過電壓保護(hù) ..........................................................................................................46 接 地 ......................................................................................................................48 11 照明與檢修網(wǎng)絡(luò) .....................................................................................................49 照明網(wǎng)絡(luò) ..............................................................................................................49 檢修網(wǎng)絡(luò) ..............................................................................................................51 12 廠內(nèi)通信 .............................