東北特鋼4號變電所電氣部分設計

電氣自動化論文編號:ZD315  論文字數:17444,頁數:53  有開題報告和中期檢查

目  錄
內容摘要  2
序論  4
第一部分：設計任務書  5
第二部分：設計說明及計算書  8
一、電氣主接線的設計及論證  8
二、主變型號選擇及技術參數  14
三、短路電流的計算說明  15
四、導體及電氣設備的選擇及校驗  22
五、主要電氣設備選擇一覽表  42
第三部分：變電站的其他規劃  44
防雷保護規劃  44
參考文獻   50
結束語   -51

內容摘要
本設計共有四部分：第一部分為設計任務書；第二部分畢業設計（論文）說明及計算書；第三部分為變電站的其他規劃；第四部分為設計圖紙。
 此次設計的是一個降壓變電所，有三個電壓等級，主變容量為2X31.5MVA。110KV主接線為雙母線、35KV和10KV主接線均為單母分段 ，本次設計中進行了主接線的方案論證、短路電流計算、主要電氣設備的選擇有斷路器、隔離開關、母線、PT、CT等的選擇及校驗。
在這次設計中得到了 老師的大力幫助和支持。在此表示衷心的感謝，由于本人水平有限，本設計中難免有錯誤和不足之處，希望各位教師和同學批語指正。

Abstract
The design is made up of four parts: part one, the design specification; part two, the prospectus of the design and the calculations of the design; part three,construction of power substation; part four, the design drawing.
The design concerns a step-down substation of three voltages with the main capacity of 2X31.5MVA. Its main line of 110KV is a two-way bus, and the other two of 35KV and 10KV are both one-way bus line sections. As for the design, the thesis has verified its wiring project, calculated its short-circuit current, selected and tested its main electrical equipments like the circuit breaker, the disconnecting switch, the bus line, PT, CT, etc.
I would like to express my thanks to the supervisor, Mr. for his invaluable assistance. Since this is a tentative design, the criticism and advice of all my teachers and schoolmates are welcome for its improvement.