【正文】 了傳統(tǒng)變電站的二次設備，同時也簡化了傳統(tǒng)變電站的二次接線。 關鍵詞 ：變電站；設備選型； 繼電保護 ； 遠動技術 畢業(yè)設計 說明書（畢業(yè) 論文 ） II Protection and monitoring system for 110kV smart substation Abstract Substation is a important node in the work, it shoulders the transformation of voltage, current’s collection, distribution of electricity, control of power flow and adjust voltage. Smart substation aims to operate reliablly and establish a new mode of microelectronics technology, information technology and puter technology. With the development of electronic transformer, the space of intelligent highvoltage electrical appliances and high speed work munication technology,could provide smart substation system require higher level of reliability, efficiency and stablity. The smart substation rely protection function relate to equipment selection, configuration and the munication system. Selection of main ratings and calibration, the main functions of internal and external protection of transformer short circuit, overcurrent and various kinds of abnormal protection is mainly for transformer protection introducing the main transformer protection and reserve protection. Application of munication part mainly introduces the RS485 serial standards and telecontrol technology, all these need remote munication protocol of intelligent substation, converted into the corresponding information, can be data acquisition system identification. Key words： substation； equipment selection； relay protection； remote control technology 畢業(yè)設計 說明書（畢業(yè) 論文 ） III 目 錄 摘 要 ......................................................................................................................................... I Abstract .......................................................................................................................................II 第一章 引 言 ............................................................................................................................ 1 智能變電站的概念 ..................................................................................................... 1 智能變電站建立的 背景和意義 .................................................................................. 1 智能變電站 相關技術 的發(fā)展 ...................................................................................... 1 智能變電站的主要作用與功能 .................................................................................. 2 智能變電站的一些基本概念 ...................................................................................... 3 智能變電站的體系構架 ............................................................................................. 3 第二章 智能變電站主要設備選型 ........................................................................................... 4 變壓器的選擇 ............................................................................................................. 4 高壓斷路器和隔 離開關的選擇 .................................................................................. 4 110kV 斷路器選擇及校驗 ................................................................................ 5 35kV 斷路器選擇及校驗 .................................................................................. 6 10kV 斷路 器選擇及校驗 .................................................................................. 7 互感器的選擇 ............................................................................................................. 9 110kV 電流互感器的選擇 ................................................................................ 9 35kV 電流互感器的選擇 ................................................................................ 10 10kV 電流互感器的選擇 ................................................................................ 10 電壓互感器的選擇 ......................................................................................... 11 第三章 變電站一次部分接線方式 ......................................................................................... 12 變電站一次部分設計基本要求 ................................................................................ 12 110kV 變電站主接線部分設計方案 ......................................................................... 13 110kV 側電氣主接線方案設計 ...................................................................... 13 35kV 側電氣主接線方案設計 ........................................................................ 14 10kV 側電氣主接線方案設計 ........................................................................ 15 第四章 110kV 智能綜 合變電站繼電保護部分 ..................................................................... 16 繼電保護部分綜述 ................................................................................................... 16 繼電保護部分基本要求 ................................................................................. 16 畢業(yè)設計 說明書（畢業(yè) 論文 ） IV 繼電保護整定計算 目的 ................................................................................. 16 繼電保護整定計算的基本任務 ..................................................................... 16 變壓器的整定 ........................................................................................................... 17 變壓器保護配置 ............................................................................................. 17 TOP9720C 系列微機變壓器保護 ................................................................... 18 短路電流計算 ........................................................................................................... 18 網絡參數計算 ................................................................................................. 18 系統(tǒng)正序網、負序網、零序網 ..................................................................... 20 變壓器保護 ............................................................................................................... 20 變壓器主保護 ................................................................................................. 21 變壓器的后備保護 ......................................................................................... 23