freepeople性欧美熟妇, 色戒完整版无删减158分钟hd, 无码精品国产vα在线观看DVD, 丰满少妇伦精品无码专区在线观看,艾栗栗与纹身男宾馆3p50分钟,国产AV片在线观看,黑人与美女高潮,18岁女RAPPERDISSSUBS,国产手机在机看影片

正文內(nèi)容

畢業(yè)論文—火力發(fā)電廠電氣部分的設(shè)計(jì)(已修改)

2025-01-29 00:05 本頁面
 

【正文】 河南理工大學(xué)畢業(yè)設(shè)計(jì)(論文)說明書 摘要 隨著我國經(jīng)濟(jì)的不斷發(fā)展,對(duì)電的需求也越來越大。電力工業(yè)是我國經(jīng)濟(jì)發(fā)展中最為重要的一種能源,主要是它可以方便、高效地轉(zhuǎn)換其它能源形式。電力工業(yè)作為一種先進(jìn)的生產(chǎn)力,是國民經(jīng)濟(jì)發(fā)展中最重要的基礎(chǔ)能源產(chǎn)業(yè)。而火力發(fā)電是電力工業(yè)發(fā)展中的主力軍。截止 2022 年底,火電發(fā)電量達(dá)到 48405 萬千瓦,約占總?cè)萘康?%。由此可見,火力發(fā)電在我國這個(gè)發(fā)展中國家的國民經(jīng)濟(jì)中的重要性。 本次設(shè)計(jì)是針對(duì) 2*300MW 火力發(fā)電廠電氣部分的設(shè)計(jì),電氣主接線是發(fā)電廠、變電站電氣設(shè)計(jì)的首要部分,也是構(gòu)成電力系統(tǒng)的主要環(huán)節(jié)。所以本次設(shè)計(jì)電氣部分主接線方案為一臺(tái)半斷路器接線。 該設(shè)計(jì)主要從理論上在電氣主接線設(shè)計(jì)、短路電流計(jì)算、電氣設(shè)備的選擇、配電裝置的布局、防雷設(shè)計(jì)、發(fā)電機(jī)、變壓器和母線的繼電保護(hù)等方面做詳盡的論述,同時(shí),在保證設(shè)計(jì)可靠性的前提下,還要兼顧經(jīng)濟(jì)型和靈活性,通過計(jì)算論證火電廠實(shí)際設(shè)計(jì)的合理性與經(jīng)濟(jì)型。采用軟件繪制電氣圖和查閱相關(guān)書籍,進(jìn)一步完善了設(shè)計(jì)。 關(guān)鍵詞: 電氣主接線;短路電流;配電裝置;電氣設(shè)備選擇 河南理工大學(xué)畢業(yè)設(shè)計(jì)(論文)說明書 Abstract As China39。s economic development, the demand for electricity is growing。 Electric power industry in China39。s economic development is one of the most important energy,mainly it can be easily and efficiently convert other forms of energy。 As an advanced productivity in the electrical industry, is the most important foundation in the development of energy industry of the national economy。 Thermal power is the main force in the development of the electric power industry。 By the end of 2022, thermal power generating capacity reached millionkilowatt, % per cent of total capacity。 Thus, thermal power generation in China, the importance of developing the national economy。 This design is designed for electrical parts of the 2*300MW thermal power plant, main electrical connection is the primary part of the electric design of power plant and substation, constitute the main part of power system。 Design of main electrical connection scheme for one and a half circuit breaker connection。 The design theory in the design of main electrical wiring, electrical equipment for shortcircuit current calculations, selection and distribution equipment for lightning protection design, layouts, generators, transformers and relay protection of Busbar in elaborate on these, at the same time, ensure the reliability design of premise,also consider economic and flexibility through calculations justify the actual design of thermal power plant and cheap。 Draw electrical diagrams software and check out books,further improved the design。 Key words: main electrical wiring; short circuit current; distribution equipment; electrical equipment selection 河南理工大學(xué)畢業(yè)設(shè)計(jì)(論文)說明書 目錄 1 原始資料介紹 ........................................................................................................... 1 原始資料分析 ............................................................................................. 1 本次設(shè)計(jì)主要內(nèi)容 ..................................................................................... 1 2 電氣主接線設(shè)計(jì)方案確定 ....................................................................................... 2 電氣主接線設(shè)計(jì)原則與要求 ..................................................................... 2 電氣主接線設(shè)計(jì)原則 .......................................................................... 2 電氣主接線設(shè)計(jì)基本要求 .................................................................. 2 大機(jī)組超高壓主接線的特殊要求 ...................................................... 4 500KV 電氣主接線的確定 ......................................................................... 5 主接線方案的確定 ..................................................................................... 7 主變壓器的選擇 ......................................................................................... 9 發(fā)電廠主變壓器的容量和臺(tái)數(shù)的確定 .............................................. 9 主變壓器型式的選擇 .......................................................................... 9 繞組容量和連接方式的選擇 .............................................................. 9 電氣設(shè)備的選擇 .................................................................................. 9 3 廠用電設(shè)計(jì) ............................................................................................................. 11 廠用負(fù)荷分類 ........................................................................................... 11 廠用電接線基本要求 ............................................................................... 11 廠用電的電壓等級(jí) ................................................................................... 12 廠用電系統(tǒng)中性點(diǎn)接地方式 ................................................................... 12 廠用電源及其引接 ................................................................................... 13 備用電源數(shù)量 ........................................................................................... 15 廠用變壓器的選擇 ................................................................................... 15 火電廠主要廠用電負(fù)荷 .................................................................... 16 廠用電負(fù)荷的計(jì)算方法 .................................................................... 18 廠用變壓器的選擇 ............................................................................ 20 廠備用變壓器選擇 ............................................................................ 21 廠用電接線的確定 ................................................................................... 24 4 短路電流計(jì)算 ......................................................................................................... 25 短路電流計(jì)算的目的 ............................................................................... 25 短路電流計(jì)算的一般規(guī)定 ....................................................................... 25 短路電流計(jì)算步驟 ................................................................................... 26 電路元件參數(shù)計(jì)算 ................................................................................... 27 各點(diǎn)短路電流計(jì)算 ................................................................................... 27 d1 點(diǎn)短路( 500KV) ........................................................................ 28 d2(發(fā)電機(jī)出口側(cè))短路 ................................................................ 29 河南理工大學(xué)畢業(yè)設(shè)計(jì)(論文)說明書 d3 點(diǎn)短路電流(廠用變壓器低壓側(cè))計(jì)算: ............................... 31 5 電氣設(shè)備的配置 ..................................................................................................... 35 隔離開關(guān)的配置 .......................
點(diǎn)擊復(fù)制文檔內(nèi)容
環(huán)評(píng)公示相關(guān)推薦
文庫吧 www.dybbs8.com
公安備案圖鄂ICP備17016276號(hào)-1