【正文】 哈爾濱理工大學(xué)學(xué)士學(xué)位論文 I SSFZ990000/220/115/35 三 繞組 有 載調(diào)壓 電力變壓器電磁 計(jì)算 摘 要 變壓器理論是電機(jī)學(xué)的一個(gè)分支。盡管變壓器是一個(gè)靜止電氣設(shè)備，但由于高電壓、大容量變壓器的出現(xiàn)，變壓器理論同樣是一門(mén)復(fù)雜的學(xué)科，所涉及知識(shí)面廣，難度也很大。本文主要介紹了電力變壓器的發(fā)展歷史，并且針對(duì) SSFZ990000/220/115/35 三相 三繞組有載調(diào)壓電力變壓器進(jìn)行了簡(jiǎn)單的電磁計(jì)算和設(shè)計(jì)，其中計(jì)算部分包括：變壓器的電路計(jì)算、變壓器的磁路計(jì)算 、 變壓器短路阻抗計(jì)算、變壓器的絕緣、變壓器溫升計(jì)算、變壓器電動(dòng)力計(jì)算、變 壓器整體重量計(jì)算等。本文重點(diǎn)放在理論與實(shí)踐的溝 通，對(duì)于每一參數(shù)的選取、每一系數(shù)的取值范圍，都經(jīng)過(guò)認(rèn)真思考，并向老師詢(xún)問(wèn)，再進(jìn)行計(jì)算， 在計(jì)算中， 也盡量 結(jié)合工程實(shí)際 ，以及保證誤差在工程上允許的范圍內(nèi)。最后的運(yùn)算結(jié)果符合國(guó)家標(biāo)準(zhǔn)，完成了變壓器的電磁計(jì)算。 關(guān)鍵詞 變壓器；短路阻抗；電磁計(jì)算 哈爾濱理工大學(xué)學(xué)士學(xué)位論文 II The calculation and design of SSFZ990000/220/115/35 three winding load variation power transformer Abstract Transformer theory is also a plex subject, involving extensive knowledge, is also very difficult。 This paper describes the development of historical of power transformers, And for SSFZ990000/220/115/35 Threewinding power transformer load tap a simple electromagic calculation and design, some of which include the calculation: calculation of the transformer circuit, the transformer magic circuit calculation, transformer short circuit impedance calculation, transformer insulation, transformer temperature rise calculation, electric power transformer calculation, the overall weight of transformers and so on. This article focuses on munication theory and practice, for each parameter selection, the range of each factor, have been seriously thinking to the teacher about then calculated, in the calculation, but also try to bine engineering and ensure that errors in engineering to the extent permitted. The final calculation results to the national standard, pleted the calculation of electromagic transformer. Keywords power transformer ； short–circuit； electromagic puting 哈爾濱理工大學(xué)學(xué)士學(xué)位論文 III 目錄 摘要 .......................................................................................................................I Abstract ............................................................................................................... II 第 1 章 緒論 ........................................................................................................ 1 我國(guó)電力變壓器發(fā)展及發(fā)展趨勢(shì) ........................................................... 1 我國(guó)現(xiàn)階段企業(yè)生產(chǎn)變壓器狀況 ........................................................... 1 變壓器計(jì)算的一般程序 ........................................................................... 2 本課題的目的和意義 ............................................................................... 3 第 2 章 電力變壓器設(shè)計(jì)計(jì)算 ............................................................................ 4 技術(shù)條件 ................................................................................................... 4 額定電壓 電流計(jì) 算 ................................................................................. 4 繞組的相電壓 .................................................................................... 4 繞組的相電流 .................................................................................... 5 電磁路計(jì)算 ............................................................................................... 5 鐵心計(jì)算 ............................................................................................ 5 繞組匝數(shù)計(jì)算 .................................................................................... 6 高電壓比校核 .................................................................................... 7 繞組的選擇 ........................................................................................ 7 線(xiàn)段排列及計(jì)算 ................................................................................ 8 繞組尺寸計(jì)算 .................................................................................... 9 繞組絕緣半徑計(jì)算 .......................................................................... 11 短路阻抗的計(jì)算 ..................................................................................... 11 額定短路阻抗的計(jì)算 ...................................................................... 11 最小分接短路阻抗的計(jì)算 .............................................................. 14 最大分接短路阻抗的計(jì)算 .............................................................. 14 損耗計(jì)算 ................................................................................................. 15 空載損耗計(jì)算 .................................................................................. 15 空載電流計(jì)算 .................................................................................. 15 負(fù)載損耗計(jì)算 .................................................................................. 16 溫升計(jì)算 ................................................................................................. 20 線(xiàn)圈對(duì)油的溫升計(jì)算 ...................................................................... 20 線(xiàn)圈對(duì)油的溫升 .............................................................................. 21 短路電動(dòng)力計(jì)算 ..................................................................................... 24 變壓器重量的計(jì)算 ................................................................................. 29 哈爾濱理工大學(xué)學(xué)士學(xué)位論文 IV 總油重量的計(jì)算 .............................................................................. 29 本章小結(jié) ................................................................................................. 32 結(jié)論 .................................................................................................................... 33 致謝 .................................................................................................................... 34 參考文獻(xiàn) ............................................................................................................ 35 附錄 .................................................................................................................... 36 哈爾濱理工大學(xué)學(xué)士學(xué)位論文 1 第 1章 緒論 我國(guó)電力變壓器發(fā)展及發(fā)展趨勢(shì) 電力變壓器發(fā)明 于 十九世紀(jì)末，它為現(xiàn)代遠(yuǎn) 距離恒定電壓電流 輸 電系統(tǒng)的發(fā)展奠定了基礎(chǔ)。在十九世紀(jì)之前，公用供電的早期階段里，均采用直流發(fā)電系統(tǒng)，人們不得不把發(fā)電設(shè)備靠近負(fù)載地點(diǎn)。 于是在各種理論與實(shí) 踐的大力支持下，電力研究學(xué)者的共同努力下，電力變壓器應(yīng)運(yùn)而生了 。 我國(guó)的電力變壓器制造工業(yè)，從建國(guó)以來(lái)，隨著國(guó)民經(jīng)濟(jì)的發(fā)展，特