企業(yè)降壓變電所電氣初步設(shè)計【獨家課程畢業(yè)設(shè)計含4張CAD圖紙+帶任務(wù)書+開題報告+外文翻譯】
企業(yè)降壓變電所電氣初步設(shè)計
摘 要
本設(shè)計以變電站為研究對象。變電站不僅僅是電力系統(tǒng)的一個重要的組成部分，而且也是電廠和用戶之間的樞紐。主電路電氣配線的設(shè)計以及開發(fā)，要對整個變電站電氣設(shè)備做出正確的選擇，其中包括配電設(shè)備裝置，繼電保護和自動裝置等設(shè)備。
在初步了解變電站的概念后，根據(jù)任務(wù)書上的要求，查閱相關(guān)的參考文獻，進一步了解所需要做的事情。由線路和負載的相關(guān)參數(shù)，計算出相應(yīng)的負荷，進行無功功率補償。然后根據(jù)變電站的位置及出線方向來考慮，并對負荷進行數(shù)據(jù)分析，考慮安全性，經(jīng)濟性以及可靠性，確定10KV站以及電氣主布線，之后通過負載計算和供給的范圍，確定變壓器的容量和臺數(shù)以及型號，進行相關(guān)的短路電流計算。再根據(jù)設(shè)計要求選擇斷路器，隔離開關(guān)，變壓器和保護裝置的型號，最后還對相應(yīng)的繼電保護和防雷措施進行了簡單的設(shè)計。
總而言之，一定要確保供電系統(tǒng)的安全和可靠性，在此基礎(chǔ)上再考慮其經(jīng)濟性，從而完成變電所的設(shè)計。
關(guān)鍵詞：主接線；數(shù)據(jù)分析；數(shù)據(jù)計算；變壓器；可靠性
Abstract
The design of transformer substation as the research object. Substation is not only power system an important component, and is also a hub between the power plants and users. Main circuit's electrical wiring design and development, it is necessary to make the right choice of the whole substation electrical equipment, including power distribution equipment, relay protection and automation device, equipment.
After a preliminary understanding of the concept of the substation, according to the requirements of the task book, refer to the relevant reference, to further understand the things that need to be done. The corresponding load is calculated by the parameters of the line and the load, and the reactive power compensation is carried out. After according to the substation location and outlet direction to consider, and the load for data analysis, consider the safety, economy and reliability, determine the 10kV station and main electrical wiring, after through the load calculation and supply determined transformer capacity and number of units, and types, related to the short-circuit current calculation.?According to the design requirements of the circuit breaker, isolating switch, transformer and the protection of the device model, and finally to the corresponding protection and lightning protection measures for a simple design.?
In short, we must ensure the safety and reliability of the power supply system, based on the consideration of its economy, so as to complete the design of substation.
Key words: main connection; data analysis; calculation data; transformer; reliability
目 錄
摘 要 I
Abstract II
1 緒論 1
1.1 設(shè)計背景 1
1.2 變電所的總體分析 1
1.3 設(shè)計思路 1
2 負荷計算 3
2.1 負荷分級及計算過程 3
2.1.1負荷分級 3
2.1.2負荷計算過程 3
2.1.3 0.4kV側(cè)負荷的計算 4
3 無功功率補償 7
3.1 無功電源的組成及補償裝置的選擇 7
3.3 無功補償?shù)拇_定 7
4 變電所位置和主變壓器的選擇 9
4.1 變電所位置確定的一般原則 9
4.2變壓器實際容量的計算 9
4.3主變壓器臺數(shù)的確定以及型號的選擇 9
4.4主變壓器的運行方式 10
5 主接線方式的選擇 11
5.1 電氣主接線設(shè)計的基本要求 11
5.2 主接線的設(shè)計 11
6 短路電流的計算 12
6.1 確定基準值 12
6.2 計算各元件電抗標幺值 12
6.3 k-1故障點的短路電流計算 13
6.4 k-2故障點的短路電流計算 13
7 變電所一次設(shè)備的選擇與校驗 15
7.1 變電所高壓一次設(shè)備的介紹 15
7.2 一次設(shè)備的選擇與校驗的條件和項目 15
7.3 變電所10kV側(cè)一次設(shè)備的選擇 17
7.4 變電所380V低壓一次設(shè)備的選擇 19
7.6 變電所進出線的選擇 20
8 繼電保護及二次回路的選擇 23
8.1 變電所二次回路方案的選擇 23
8.2繼電保護裝置 23
8.2.1反時限過電流保護 23
8.2.2電流速斷保護 24
8.3 電力線路的繼電保護設(shè)計 25
9 防雷保護的設(shè)計 27
9.1 避雷針的配置原則 27
9.2 防雷設(shè)計 27
9.3 確定最終的防雷方案 28
結(jié)論與展望 29
致 謝 30
參考文獻 31
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企業(yè)降壓變電所電氣初步設(shè)計.doc
企業(yè)降壓變電所電氣初步設(shè)計任務(wù)書.doc
企業(yè)降壓變電所電氣初步設(shè)計開題報告.doc
外文翻譯原文.pdf
外文翻譯譯文.doc
平面布置圖.dwg
文件清單.txt
電氣主接線圖.dwg
繼電保護圖.dwg
防雷設(shè)計圖.dwg
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