【正文】 某220kV變電所電氣一次初步設(shè)計畢業(yè)論文目錄設(shè)計任務(wù)書 ......................................................................................................................................I摘 要 ...........................................................................................................................................III第一部分 設(shè)計說明書 .................................................................................................................6第一章 電氣主接線設(shè)計 .............................................................................................................6 主接線的設(shè)計原則和要求 ...................................................................................................6 電氣主接線的設(shè)計原則 ..............................................................................................6 設(shè)計主接線的基本要求 ..............................................................................................8 主接線的設(shè)計步驟 ...............................................................................................................9 本變電所電氣主接線設(shè)計 ...................................................................................................9 220kV 電壓側(cè)接線 .....................................................................................................9 110kV 電壓側(cè)接線 ...................................................................................................10 10kV 電壓側(cè)接線 .....................................................................................................11第二章 變壓器選擇 ...................................................................................................................13 主變器的選擇 .....................................................................................................................13第三章 短路電流計算 ...............................................................................................................14 短路故障產(chǎn)生的原因 .........................................................................................................14 短路故障的危害 .................................................................................................................14 短路電流計算的目的 .........................................................................................................15 短路電流計算的內(nèi)容 .........................................................................................................16 短路電流計算方法 .............................................................................................................16 短路電流計算結(jié)果 .............................................................................................................16第四章 電氣設(shè)備的選擇 ...........................................................................................................18 電器選擇的一般條件 .........................................................................................................18 高壓斷路器的選擇 .............................................................................................................20 高壓隔離開關(guān)的選擇 .........................................................................................................21 電流互感器的選擇 .............................................................................................................22第五章 配電裝置設(shè)計 ...............................................................................................................23 配電裝置的基本要求 .........................................................................................................23 配電裝置的類型及特點 .....................................................................................................23 配電裝置的設(shè)計原則 .........................................................................................................24 配電裝置設(shè)計的基本步驟 .................................................................................................25 配電裝置的選用 .................................................................................................................25 電氣總平面布置 .................................................................................................................26第二部分 設(shè)計計算書 ...............................................................................................................28第一章 短路電流計算 ...............................................................................................................28 三相短路電流計算 .............................................................................................................28第二章 電氣設(shè)備選擇及校驗計算 ...........................................................................................32 斷路器選擇及校驗 .............................................................................................................32 隔離開關(guān)選擇及校驗 .........................................................................................................34 電流互感器選擇及校驗 .....................................................................................................35 母線選擇及校驗 .................................................................................................................36 220kV 母線的選擇 ....................................................................................................36 110kV 母線的選擇 ..............