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某水電廠一次設(shè)計(jì)畢業(yè)設(shè)計(jì)論文(已修改)

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【正文】 某水電廠一次設(shè)計(jì)畢業(yè)設(shè)計(jì)論文摘 要 .........................................................................................................................................................................11 某水電站一次部分設(shè)計(jì)任務(wù)書 ............................................................................................................................22 某水電站電氣主接線的確定 ..........................................................................................................................3 電氣主接線的選擇 .........................................................................................................................................3 主接線的設(shè)計(jì) .................................................................................................................................................43 主變的選擇 ......................................................................................................................................................6 變壓器的選型 ................................................................................................................................................6 主變參數(shù)分析 ................................................................................................................................................64 短路電流計(jì)算 ..................................................................................................................................................9 目 的 ...............................................................................................................................................................9 造成短路原因 .................................................................................................................................................9 短路危害 .........................................................................................................................................................9 短路電流計(jì)算的一般規(guī)定 ..........................................................................................................................10 各系統(tǒng)短路電流的計(jì)算 ...............................................................................................................................115 選擇電氣一次設(shè)備遵循的條件 .........................................................................................................................16 電網(wǎng)開關(guān)電器的選擇 ..................................................................................................................................17 高壓熔斷器的選擇 ......................................................................................................................................17 高壓斷路器的選擇 ......................................................................................................................................176 防雷保護(hù)設(shè)計(jì) ......................................................................................................................................................18 雷電過(guò)電壓 ...................................................................................................................................................18 雷電的危害 ...................................................................................................................................................187 避雷器的選擇和校驗(yàn)規(guī)則 ..................................................................................................................................198 電氣設(shè)備的選擇 ............................................................................................................................................20 系統(tǒng)各個(gè)回路的最大工作電流 ............................................................................................................20 電氣設(shè)備的選擇 .......................
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