【正文】 ........................................................................1 設(shè)計原始資料 .......................................................................................................................1 變電所的出線 ...............................................................................................................1 負荷情況 .......................................................................................................................2 設(shè)計內(nèi)容 ...............................................................................................................................2第二章 電氣主接線的選擇 ...........................................................................................................3 選擇原則 ...............................................................................................................................3 主接線設(shè)計的基本要求及原則 ..................................................................................3 變電所主接線設(shè)計原則 ..............................................................................................3 主接線的基本形式和特點 ...........................................................................................4 變電所各接線方案的確定 ...........................................................................................4 主接線的形式 .......................................................................................................................4 110KV 側(cè)主接線方案 ...................................................................................................4圖 21 單母線分段接線 ..................................................................................................................4 35KV 側(cè)主接線方案 .....................................................................................................5 10KV 側(cè)主接線方案 .....................................................................................................7 最優(yōu)方案的確定 ..........................................................................................................7第三章 主變壓器的選擇 ...............................................................................................................8 變電所主變壓器臺數(shù)的確定 ..............................................................................................8 主變臺數(shù)確定的要求 ..................................................................................................8 變電所主變壓器容量的確定 ......................................................................................8 變電所主變壓器型式的選擇 ......................................................................................8 站用變臺數(shù)、容量和型式的確定 ......................................................................................8 站用變臺數(shù)的確定 .......................................................................................................8 站用變?nèi)萘康拇_定 ......................................................................................................9 站用變型式的選擇 ......................................................................................................9第四章 短路電流計算 .................................................................................................................10 短路電流計算的目的及假設(shè) ............................................................................................10 短路電流計算的目的 .................................................................................................10 短路電流計算的一般規(guī)定 .........................................................................................10 短路電流計算的基本假設(shè) .........................................................................................10某市 110KV 中心變電所電氣一次部分初步設(shè)計 II 短路電流計算的步驟 ........................................................................................................10 短路電流的計算 ................................................................................................................12 短路點的計算 .............................................................................................................12 短路點的確定及其計算 ............................................................................................13 繪制短路電流計算結(jié)果 ............................................................................................16第五章 電氣設(shè)備的選擇 .............................................................................................................17 電氣設(shè)備選擇的一般原則 .................................................................................................17 電氣設(shè)備選擇的一般技術(shù)條件 .................................................................................17 按正常工作條件選擇電氣設(shè)備 .................................................................................17 按短路情況校驗 ........................................................................................................18 ...........................................................................................................................18 ...........................................................................................................................19 高壓電氣設(shè)備 ....................................................................................................................19 斷路器選擇與檢驗 ....................................................................................................20 隔離開關(guān)的選擇與校驗 ............................................................................................22 電流互感器選擇與檢驗 ............................................................................................23 電壓互感器的選擇及校驗 ........................................................................................25 母線與電纜的選擇與校驗 ........................................................................................26第六章 接地刀閘與避雷器的選擇 .............................................................................................28 接地刀閘選擇 ....................................................................................................................28 避雷器 .........................