煤礦35kv供電系統(tǒng)設(shè)計(jì)方案(doc畢設(shè)論文)-展示頁(yè)
2025-05-12 03:30本頁(yè)面
【正文】 10kV 側(cè)主接線 .....................................144 井下中央變電所及供電設(shè)計(jì) ..................................17 井下電力負(fù)荷計(jì)算 ......................................17 井下負(fù)荷的計(jì)算方法 ................................17 井下負(fù)荷的計(jì)算 ....................................19 井下中央變電所位置選擇原則 ............................20 井下中央變電所主接線 ..................................205 短路電流計(jì)算 ..............................................22 短路電流計(jì)算選擇 ......................................22 計(jì)算短路電流的目的 ....................................23 三相短路電流的計(jì)算方法 ................................23 電源為無(wú)限容量時(shí)的短路電流計(jì)算 ....................24 電源為有限容量時(shí)的短路電流計(jì)算 ....................25 短路電流計(jì)算 ..........................................266 設(shè)備選擇 ..................................................33 一般的選擇方法 ........................................33 短路動(dòng)、熱穩(wěn)定性校驗(yàn)原則 ..............................34 變壓器選擇 ............................................34 地面設(shè)備選擇舉例 ......................................35 35kV 設(shè)備的選擇 ...................................35 10kV 設(shè)備的選擇 ...................................38 井下設(shè)備選擇 ..........................................39 電纜選擇計(jì)算 ......................................39 井下開(kāi)關(guān)選擇 ......................................427 保護(hù)裝置 ..................................................43 繼電保護(hù)裝置 ..........................................43 防雷保護(hù)及接地 ........................................44 變電所防雷裝置 ....................................44 地面變電所保護(hù)接地網(wǎng) ..............................45 井下保護(hù)接地網(wǎng) ....................................458 結(jié) 論 .....................................................48致 謝 ........................................................49參考文獻(xiàn) .....................................................50摘 要本設(shè)計(jì)是在煤礦實(shí)習(xí)的基礎(chǔ)上完成的。通過(guò)對(duì)寧武大廖溝煤礦的實(shí)地考察，結(jié)合該礦現(xiàn)有生產(chǎn)水平和未來(lái)發(fā)展前景，在原有供電系統(tǒng)的基礎(chǔ)上根據(jù)煤炭生產(chǎn)行業(yè)的有關(guān)規(guī)定進(jìn)一步規(guī)范和完善。本設(shè)計(jì)主供電系統(tǒng)由來(lái)自不同地方的兩路 35kV 線路供電，經(jīng)主變壓器變?yōu)?10kV，由單母分段的接線方式分別向地面和井下供電。寧武煤礦 35kV 供電系統(tǒng)包括井上供電系統(tǒng)和井下供電系統(tǒng)兩個(gè)部分。關(guān)鍵詞：寧武煤礦 35KV 供電 設(shè)備選擇AbstractThe design is based on the pletion of the internship in the coal mine. Da Liao Gap of Ningwu Coal Mine through field visits, in conjunction with the existing level of production plant and the prospects for future development in the power supply system on the basis of the relevant provisions of the coal production industry further standardize and improve.Da Liao Gap of Ningwu Coal Mine is 30 million tons and coal mines, power system design include ： ground substations design, mine supply design, short circuit current calculations, ground and underground highlow voltage equipment selection, protection devices, ground and underground grounded. From the design of the power supply system in different parts of the two roads 35kV power line, the main 10kV transformers into the singleparent separately to the above ground and underground wiring electricity. According to the characteristics of coal supply system, the design of the main lines are the largest operation of the system means the set of lines and equipment and to
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