【正文】 綿陽(yáng)師范學(xué)院本科生畢業(yè)設(shè)計(jì)（論文）題 目 綿師院磨家供配電系統(tǒng)優(yōu)化改造設(shè)計(jì)專(zhuān) 業(yè) 電氣工程及其自動(dòng)化 院 部 物理與電子工程學(xué)院 學(xué) 號(hào) 0909040148 姓 名 張 歡 指 導(dǎo) 教 師 歐 劍 答 辯 時(shí) 間 二0一三年五月 工作時(shí)間： 2012年7月 至 2013年5月綿陽(yáng)師范學(xué)院2013屆本科畢業(yè)設(shè)計(jì)(論文)綿師院磨家供配電系統(tǒng)優(yōu)化改造設(shè)計(jì) 學(xué) 生:張歡指導(dǎo)老師:歐劍摘 要: 本次設(shè)計(jì)的內(nèi)容是磨家?guī)熢汗┡潆娤到y(tǒng)優(yōu)化改造設(shè)計(jì)，這次是為師院供配電主變壓器的優(yōu)化，給學(xué)校供給電能。且大學(xué)對(duì)供電要求較高。所以，必須采用可靠性較高的優(yōu)化方案。原始材料的負(fù)荷計(jì)算、短路電流計(jì)算及變壓器的選擇及優(yōu)化、主接線圖的選擇。其中，主接線代表了變配電所主體結(jié)構(gòu)，它對(duì)電氣設(shè)備的選擇、配電裝置的選擇、繼電保護(hù)等都有關(guān)系，且將長(zhǎng)期影響系統(tǒng)運(yùn)行的可靠性、安全性、經(jīng)濟(jì)性。我參考了供配電系統(tǒng)設(shè)計(jì)、變配電所設(shè)計(jì)、工廠供電等許多的書(shū)籍，最后對(duì)該校供配電系統(tǒng)進(jìn)行了初步優(yōu)化改造設(shè)計(jì)。這次設(shè)計(jì)為畢業(yè)設(shè)計(jì)，我通過(guò)設(shè)計(jì)改造實(shí)踐，綜合運(yùn)用所學(xué)的知識(shí)，培養(yǎng)了獨(dú)立分析和解決問(wèn)題的能力，為以后的工作奠定了基礎(chǔ)。關(guān)鍵詞: 變壓器。電氣主接線。電氣設(shè)備。繼電保護(hù) 綿陽(yáng)師范學(xué)院2013屆本科畢業(yè)設(shè)計(jì)(論文)Optimization of School Power SupplyUndergraduate: zhanghuanSupervisor: oujianAbstract: This design topic is the power supply and distribution system for a experimental high school of A city, this system is connected with the public line of 10kV through stepdown transformers, and distribute electrical power to experimental high school of A city. The experimental high school of A city electrical charge is big ,and the school’ demand of reliability of power supply is high, using the high reliable wiring form.The charge putation, shortcircuit current putation, electrical main wiring design, electrical equipment choice and verification (including main voltage transformer choice, circuit breaker and disconnecting switch with checkup, conductor choice with checkup, current transformer choice with checkup, voltage transformer choice with checkup and lightning protector choice and so on),the disposal and configuration of the transformer substation design. Between them, the electrical main wiring has represented the main bodies structure of the substation, it has the decisive relations about the electrical equipment choice, the power distribution equipment arrangement, the relay protection, the decision of automatic device and the control mode ,and it has longterm influence about the reliability，security，flexibility and efficiency of the electrical power system movement. In order to finish the design, I referring to the power supply and distribution design standard, the transformer substation design standard，the electrical design standard of architecture and so on, carry on the preliminary design to this power system. This design is a graduation design .The purpose of this design is to give us a chance of synthetical usage of the knowledge we have learned. Besides, it can train our ability to analyze and solve practical problems in Construct electricity in dependently so that the theory is connected with practice and a solid base is made in favor of future work.Key words: transformer。 electrical main wiring。 electrical equipment。 relay protection 目 錄1 緒論 1 供配電設(shè)計(jì)的意義和要求 1 供配電設(shè)計(jì)步驟 12 負(fù)荷及無(wú)功功率補(bǔ)償?shù)挠?jì)算 2 負(fù)荷計(jì)算的內(nèi)容和目的 2 負(fù)荷計(jì)算的結(jié)果 2 無(wú)功補(bǔ)償?shù)哪康?4 無(wú)功功率補(bǔ)償?shù)挠?jì)算 43 磨家?guī)熢鹤兣潆娝O(shè)計(jì)改造 5 變配電所位置選擇 5 變配電所主接線設(shè)計(jì)要求 5 主接線概述 6 變電所主變壓器選擇的優(yōu)化 64 短路電流計(jì)算 7 標(biāo)么值法計(jì)算短路電流 7 短路電流的計(jì)算結(jié)果 85 主要電氣設(shè)備的選擇與校驗(yàn) 9 電氣設(shè)備選擇的一般原則 9 電氣設(shè)備選擇的技術(shù)條件 9 10kV側(cè)進(jìn)線斷路器、隔離開(kāi)關(guān)的選擇 10 380V側(cè)斷路器的選擇 12 互感器的選擇 12 熔斷器的選擇 13 開(kāi)關(guān)柜的選擇 146 變電所二次回路方案選擇及繼電保護(hù)的整定 14 二次回路方案選擇 14 繼電保護(hù)的整定 15參考文獻(xiàn) 18致 謝 19附錄 20附錄1 磨家?guī)熢浩矫鎴D 20附錄2 配電室平面布置示意圖 21附錄3 主接線圖 22附錄4 變壓器繼電保護(hù)原理圖 23附錄5 10kV側(cè)繼電保護(hù)圖 24綿陽(yáng)師范學(xué)院2013屆本科畢業(yè)設(shè)計(jì)(論文)251 緒論 供配電設(shè)計(jì)的意義和要求 供配電技術(shù)，就是研究電力的供應(yīng)和分配問(wèn)題。電力，是現(xiàn)代工業(yè)生產(chǎn)的主要能源和動(dòng)力，是現(xiàn)代文明的物質(zhì)技術(shù)基礎(chǔ)。沒(méi)有電力，就沒(méi)有工業(yè)現(xiàn)代化，就沒(méi)有整個(gè)國(guó)民經(jīng)濟(jì)的現(xiàn)代化。現(xiàn)代社會(huì)的信息化和網(wǎng)絡(luò)化，都是建立在電氣化的基礎(chǔ)之上的。工業(yè)生產(chǎn)只有電氣化以后，才能大大增加產(chǎn)量，提高產(chǎn)品質(zhì)量，提高勞動(dòng)生產(chǎn)率，降低生產(chǎn)成本，