【正文】 濟(jì)性的要求密切相關(guān)，并且對(duì)電氣設(shè)備的選擇、配電裝置布置、繼電保護(hù)和控制方式的擬定都有較大的影響。所設(shè)計(jì)的內(nèi)容力求概念清楚，層次分明。 關(guān)鍵詞 : 電氣主接線 ， 短路電流；電氣設(shè)備 ，廠用電，同期系統(tǒng) 2 ABSTRACT Hydropower is an important part of the power system,which directly affects the entire power system security and economic operation, plays a role in the production and distribution of electrical energy. The design of the electrical station once and synchronization , according to the main terminal of economical, reliable and flexible operation 220KV voltage level required to select connection mode, select the optimal flexible , the shortcircuit current calculation, according to the short circuit point were calculated for each point of impact of current steady state current and shortcircuit, and according to the voltage level of the rated voltage and maximum continuous operating current for equipment selection and verified. Then, the auxiliary power design , according to the same principle of synchronization system design of hydropower station and select the corresponding ponents. 3 Key words :the electricity mainwiring ,the shortcircuit current ,electricity 4 目錄 前 言 ...................................................................................................................... 7 第一章 電氣主接線設(shè)計(jì) .......................................................................................... 8 ................................................................................................ 8 .................................................................... 8 .................................................................... 9 ..........................................................................12 ........................................................................................13 第二章 短路電流的計(jì)算及負(fù)荷計(jì)算 .......................................................................15 ......................................................................15 ......................................................................15 ......................................................................16 ........................................................................................16 等效電路阻抗及短路電流的計(jì)算 ..............................................................18 第三章 電氣主設(shè)備的選擇與校驗(yàn) ...........................................................................25 ...............................................................25 ........................................................................................25 .....................................................26 ....................................................................................27 ....................................................................................27 ........................................................................................30 ....................................................................................30 ....................................................................................31 導(dǎo)線 ..............................................................................................32 熔斷器 ..........................................................................................33 避雷器 ..........................................................................................33 5 支柱絕緣子 ...................................................................................33 穿墻套管 .......................................................................................34 消弧線圈 .....................................................................................34 第四章 廠用電設(shè)計(jì) ................................................................................................35 廠用電系統(tǒng)設(shè)計(jì)原則 ................................................................................35 廠用電系統(tǒng)的特點(diǎn) ...................................................................................35 廠用電電壓 ...................................................................................35 廠用電計(jì)算 ..............................................................................................36 廠用電負(fù)荷計(jì)算 ............................................................................36 廠用電接線圖 ..................................................................................37 第五章 同期系統(tǒng)設(shè)計(jì) ............................................................................................38 同期原理概述 ................................................................................38 同期系統(tǒng)設(shè)計(jì)研究狀況 ..................................................................38 同期原理圖 ...............................................................................................40 系統(tǒng)硬件配置圖 .......................................................................................41 同期系統(tǒng)流程 ..........................................................................................42 導(dǎo)前時(shí)間 .......................................................................................42 準(zhǔn)同期條件 ................................................