【正文】 ..........................................................................................................8第二章 工廠的主接線 ...............................................................................................8 工廠的主接線方案如下 .........................................................................................................8 主接線方案的設(shè)計原則與一般要求 ...........................................................................8. 2 主接線方案的初選擇: .................................................................................................9 主接線圖的分析 ...................................................................................................................9 A 圖分析 ....................................................................................................................9 B 圖分析 ..................................................................................................................10 主接線圖的確定 .................................................................................................................10第三章 全廠負荷計算 .............................................................................................10 關(guān)于負荷計算 .....................................................................................................................10 負荷計算的目的： .....................................................................................................10 主要計算公式有 .........................................................................................................11 工廠的負荷計算 .................................................................................................................11 金工車間的總負荷計算 .............................................................................................11 全廠有功負荷計算 .....................................................................................................11第四章 主變壓器設(shè)備的選擇 .................................................................................12 主變壓器臺數(shù)的確定 ...........................................................................................................12 主變壓器容量的確定 ..........................................................................................................13 注意事項 .....................................................................................................................13 本廠容量的確定 .........................................................................................................13 主變壓器型式的選擇 ...........................................................................................................13 聯(lián)結(jié)組別選擇 .......................................................................................................................13 變壓器型號的選擇 ..............................................................................................................14 工廠變壓器的選擇 ..............................................................................................................14第五章 全廠主設(shè)備的選擇 .....................................................................................14 電氣設(shè)備選擇的一般條件： ..............................................................................................14 高壓設(shè)備的選擇： ..............................................................................................................152 / 37 電纜的選擇： .............................................................................................................15 高壓斷路器、隔離開關(guān)的選擇 .................................................................................15 避雷器與高壓熔斷器的選擇 ....................................................................................16 電流、電壓互感器的選擇 ........................................................................................16 400V 低壓側(cè)設(shè)備選擇 .........................................................................................................17 低壓設(shè)備選擇的原則 .................................................................................................17 低壓母線、中性線選擇 .............................................................................................17 低壓斷路器的選擇 .....................................................................................................18 低壓側(cè)刀開關(guān)的選擇 ................................................................................................18 柴油發(fā)電機的選擇 .....................................................................................................19 補償電容的選擇 .........................................................................................................19 400V 低壓刀熔開關(guān)的選擇 .......................................................................................19 導(dǎo)線的選擇 .................................................................................................................20 低壓配電箱的選擇 .....................................................................................................24第六章 短路電流的計算 .......................................................................................25 短路電流計算的目的 ................................................