某220kv變電所電氣一次初步設計畢業論文(已修改)

　

【正文】 某220kV變電所電氣一次初步設計畢業論文目錄設計任務書 ......................................................................................................................................I摘 要 ...........................................................................................................................................III第一部分 設計說明書 .................................................................................................................6第一章 電氣主接線設計 .............................................................................................................6 主接線的設計原則和要求 ...................................................................................................6 電氣主接線的設計原則 ..............................................................................................6 設計主接線的基本要求 ..............................................................................................8 主接線的設計步驟 ...............................................................................................................9 本變電所電氣主接線設計 ...................................................................................................9 220kV 電壓側接線 .....................................................................................................9 110kV 電壓側接線 ...................................................................................................10 10kV 電壓側接線 .....................................................................................................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 短路電流計算的內容 .........................................................................................................16 短路電流計算方法 .............................................................................................................16 短路電流計算結果 .............................................................................................................16第四章 電氣設備的選擇 ...........................................................................................................18 電器選擇的一般條件 .........................................................................................................18 高壓斷路器的選擇 .............................................................................................................20 高壓隔離開關的選擇 .........................................................................................................21 電流互感器的選擇 .............................................................................................................22第五章 配電裝置設計 ...............................................................................................................23 配電裝置的基本要求 .........................................................................................................23 配電裝置的類型及特點 .....................................................................................................23 配電裝置的設計原則 .........................................................................................................24 配電裝置設計的基本步驟 .................................................................................................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 電氣設備選擇及校驗計算 ...........................................................................................32 斷路器選擇及校驗 .............................................................................................................32 隔離開關選擇及校驗 .........................................................................................................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 ..............