【正文】 .............................8 站用電接線 .................................................................................................................94 短路電流計(jì)算書 ..........................................................................................................12 計(jì)算各回路電抗 ........................................................................................................12 計(jì)算各點(diǎn)短路點(diǎn)的最大短路電流 ............................................................................13 110kv 側(cè)短路電流的計(jì)算 ................................................................................13 35Kv 側(cè)短路電流的計(jì)算 .................................................................................14 10Kv 側(cè)短路電流的計(jì)算 .................................................................................155 配電裝置及主要電氣設(shè)備的配置與選擇 ....................................................................16 高壓配電裝置的配置 ...............................................................................................16 高壓配電裝置的設(shè)計(jì)原則與要求 .....................................................................16 高壓配電裝置的配置 .........................................................................................16 高壓斷路器的選擇 ...................................................................................................17 高壓斷路器的配置與選擇 ...............................................................................17 110kv 側(cè)斷路器的選擇 ....................................................................................17 35kv 側(cè)斷路器的選擇 ......................................................................................19 10kv 側(cè)斷路器的選擇 ......................................................................................20 隔離開關(guān)的選擇 .......................................................................................................21 隔離開關(guān)的配置與選擇 ...................................................................................21 110Kv 側(cè)隔離開關(guān)的選擇 ...............................................................................21 35kv 側(cè)隔離開關(guān)的選擇 ..................................................................................22 10kv 側(cè)隔離開關(guān)的選擇 ..................................................................................22 導(dǎo)線的選擇 ...............................................................................................................22 110kv 母線的選擇與校驗(yàn) ................................................................................23 35kv 側(cè)母線的選擇與校驗(yàn) ..............................................................................23 10kv 側(cè)母線的選擇與校驗(yàn) ..............................................................................23 互感器的選擇 ...........................................................................................................24 電壓互感器的選擇 ...........................................................................................24 電流互感器的選擇 ...........................................................................................24 避雷器的選擇 ...........................................................................................................25 接地刀閘的配置 .......................................................................................................26 10KV 配電裝置 .........................................................................................................266 其他配電裝置 ................................................................................................................26 無功補(bǔ)償裝置 ...........................................................................................................26 各級(jí)電壓中性點(diǎn)接地方式 .......................................................................................26 過電壓保護(hù)及接地 ...................................................................................................27參 考 文 獻(xiàn) ........................................................................................................................28附 錄 一 ..........................................................................................................................29 ........................................................................................................29 ................................................................................................................303. 電氣裝置斷面圖 .........................................................................................................31致 謝 ..................................................................................................................................371 概 述 總的部分110kv 降壓變電站的設(shè)計(jì)是按系統(tǒng)規(guī)劃并帶有擴(kuò)建功能，為滿足地方負(fù)荷的需要而建設(shè)的終端變電站，110kv 側(cè)采用常規(guī)電氣設(shè)備戶外高型布置，35kv 采用戶內(nèi)布置架空和電纜混合出線，10kv 采用戶內(nèi)布置全部電纜出線，主變壓器本期140MVA，終期 240MVA 三相三繞組有載調(diào)壓變壓器，每臺(tái)變壓器配置二組 的 10kv 電容器。關(guān)鍵詞：變電站；主接線； 變壓器ABSTRACTWith the development of the industry times, people bring up higher requests to the electric power supply, especially to the stability、reliability and endurance .But the stability 、reliability and endurance of the electrical work often rely on the transformer substation’s rationality and disposition. One typical transformer substation requests the equipments in it work reliably, operate nimbly, being carried on reasonably and easy to be expended .Refer to these several reasons, in this article we devise a transformer substation for abasing voltage, which has three voltage rates: the high voltage ra