【正文】 ........................................ 2 電氣主接線設(shè)計(jì)的基本要求與選擇原則 ................................................................... 2 電氣主接線設(shè)計(jì)方案 ............................................................................................... 4 2 短路電流的計(jì)算 ........................................................................................................................... 6 短路的類型 ........................................................................................................................ 6 短路計(jì)算的目的 ................................................................................................................. 6 短路計(jì)算的步驟 ................................................................................................................. 7 短路計(jì)算結(jié)果 .................................................................................................................... 7 3 導(dǎo)體與電氣設(shè)備的選擇 ................................................................................................................. 8 電氣設(shè)備選擇的一般條件 ................................................................................................... 8 按正常工作條件選擇電氣設(shè)備 ................................................................................. 8 按短路狀態(tài)校驗(yàn)設(shè)備 ............................................................................................... 8 設(shè)備的選擇與校驗(yàn) ............................................................................................................. 9 斷路器 .................................................................................................................... 9 隔離開關(guān) ................................................................................................................11 母線 ...................................................................................................................... 12 絕緣子 .................................................................................................................. 14 穿墻套管 ............................................................................................................... 15 電流 互感器 ........................................................................................................... 15 電壓互感器 ........................................................................................................... 16 熔斷器 .................................................................................................................. 17 避雷器 .................................................................................................................. 18 4 高壓配電裝置規(guī)劃設(shè)計(jì) ............................................................................................................... 19 配電裝置基本要求與設(shè)計(jì)原則 .......................................................................................... 19 配電裝置基本要求 ................................................................................................. 19 配電裝置設(shè)計(jì)原則 ................................................................................................. 19 配電裝置分類及布置特點(diǎn) ................................................................................................. 19 配電裝置的選型 ............................................................................................................... 20 22OkV、 110kV高壓配電裝置 .................................................................................. 20 10kV高壓配電裝置 ................................................................................................ 20 第二部分 設(shè)計(jì)計(jì)算書 .................................................................................................................... 21 1 短路電流計(jì)算 ............................................................................................................................... 21 參數(shù)的計(jì)算 ...................................................................................................................... 21 短路點(diǎn)的選定和計(jì)算 ........................................................................................................ 22 華北水利水電學(xué)院畢業(yè)設(shè)計(jì) 第 II 頁(yè) 220kV側(cè) 1K 點(diǎn)短路 ................................................................................................ 22 110kV側(cè) 2K 點(diǎn)短路 ................................................................................................ 26 10kV側(cè) 3K 點(diǎn)短路 ................................................................................................. 29 短路電流計(jì)算結(jié)果 ........................................................................................................... 33 2 導(dǎo)體與電氣設(shè)備的選擇 ............................................................................................................... 33 斷路器 ............................................................................................................................. 33 220kV側(cè)斷路器 ..................................................................................................... 33 110kV側(cè)斷路器 ..................................................................................................... 34 10kV側(cè)母線斷路器 ................................................................................................ 35 10kV側(cè)負(fù)荷出線斷路器 ......................................................................................... 36 隔離開關(guān) ......................................................................................................................... 37 220kV側(cè)隔離開關(guān) .................................................................................................. 37 110kV側(cè)隔離開關(guān) .................................................................................................. 38 10kV側(cè)母線隔離開關(guān) ............................................................................................ 39 10kV側(cè)負(fù)荷出線隔離開關(guān) ...............................