10KV變電站電氣部分設(shè)計(jì)


頁(yè)數(shù)：32 字?jǐn)?shù)：18740


目 錄

摘要…………………………………………………………………………………………1
關(guān)鍵詞…………………………………………………………………………………………1
Abstract…………………………………………………………………………………1
Key words……………………………………………………………………………………1
0 緒論…………………………………………………………………………………2
1 變電站電氣主接線設(shè)計(jì)……………………………………………………………………3
1.1 主接線的設(shè)計(jì)原則和要求 …………………………………………………………3
1.1.1 主接線的設(shè)計(jì)原則 ……………………………………………………………3
1.1.2 主接線設(shè)計(jì)的基本要求 ………………………………………………………3
1.2 主接線的設(shè)計(jì) ………………………………………………………………………3
1.2.1 設(shè)計(jì)步驟 ………………………………………………………………………3
1.2.2 初步方案設(shè)計(jì) …………………………………………………………………4
1.2.3 最優(yōu)方案確定 …………………………………………………………………4
1.3 主變壓器的選擇 ……………………………………………………………………5
1.4 導(dǎo)線的選擇與短路電流計(jì)算 ……………………………………………………… 6
1.4.1 導(dǎo)線的選擇 …………………………………………………………………………6
1.4.2 短路計(jì)算的目的、步驟……………………………………………………………7
1.5 變壓器的參數(shù)計(jì)算及短路點(diǎn)的確定………………………………………………8
2 電氣設(shè)備及變壓器選擇與校驗(yàn)………………………………………………………… 9
2.1 電氣設(shè)備選擇的一般規(guī)定…………………………………………………………10
2.1.1 一般原則………………………………………………………………………10
2.1.2 有關(guān)的幾項(xiàng)規(guī)定………………………………………………………………10
2.2 各回路持續(xù)工作電流的計(jì)算………………………………………………………10
2.3 高壓電氣設(shè)備選擇…………………………………………………………………10
2.3.1 斷路器的選擇與校驗(yàn)…………………………………………………………10
2.3.2 隔離開(kāi)關(guān)的選擇及校驗(yàn)………………………………………………………12
2.3.3 電流互感器的選擇及校驗(yàn)……………………………………………………13
2.3.4 電壓互感器的選擇……………………………………………………………14
2.3.5 熔斷器的選擇…………………………………………………………………15
2.4 無(wú)功補(bǔ)償設(shè)計(jì)……………………………………………………………………… 15
2.4.1 無(wú)功補(bǔ)償?shù)脑瓌t與基本要求……………………………………………………15
2.4.2 補(bǔ)償裝置容量的確定………………………………………………………………16



3 變電站配電裝置設(shè)計(jì)………………………………………………………………… 16
3.1 概述…………………………………………………………………………………16
3.2 高壓配電裝的選擇…………………………………………………………………17
3.3 電氣總平布置………………………………………………………………………19
3.3.1 電氣總平面布置的要求………………………………………………………19
3.3.2 電氣總平面布置………………………………………………………………19
3.4 本變電站的配電裝置………………………………………………………………19
4 防雷與接地………………………………………………………………………………20
4.1 防雷措施………………………………………………………………………………20
4.1.1 變配電所的防雷措施…………………………………………………………20
4.1.2 架空線路的防雷措施…………………………………………………………21
4.2 接地設(shè)計(jì)……………………………………………………………………………21
5 數(shù)字化變電站主要技術(shù)特征和架構(gòu)體系…………………………………………… 22
5.1 數(shù)字化變電站主要技術(shù)特征………………………………………………………22
5.2 數(shù)字化變電站的架構(gòu)體系 ………………………………………………………24
6 結(jié)論……………………………………………………………………………………25
致謝……………………………………………………………………………………25
參考文獻(xiàn)…………………………………………………………………………………25
附錄………………………………………………………………………………………26



10KV變電站電氣部分設(shè)計(jì)

摘要：本次畢業(yè)設(shè)計(jì)的題目是《10KV變電站電氣部分設(shè)計(jì)》。根據(jù)設(shè)計(jì)的要求，在設(shè)計(jì)的過(guò)程中，根據(jù)變電站的地理環(huán)境、容量和各回路數(shù)確定變電站電氣主接線和站用電接線，并選擇各變壓器的型號(hào)；進(jìn)行參數(shù)計(jì)算、畫等值網(wǎng)絡(luò)圖，并計(jì)算各電壓等級(jí)側(cè)的短路電流，列出短路電流結(jié)果表；計(jì)算回路持續(xù)工作電流、選擇各種高壓電氣設(shè)備，并根據(jù)相關(guān)技術(shù)條件和短路電流計(jì)算結(jié)果表校驗(yàn)各高壓設(shè)備。
隨著科學(xué)技術(shù)的發(fā)展，網(wǎng)絡(luò)技術(shù)的普及，數(shù)字化技術(shù)成為當(dāng)今科學(xué)技術(shù)發(fā)展的前沿，變電站數(shù)字化對(duì)進(jìn)一步提升變電站綜合自動(dòng)化水平將起到極大促進(jìn)作用，是未來(lái)變電站建設(shè)的發(fā)展方向?；谶@種發(fā)展的需求。利用數(shù)字化技術(shù)來(lái)解決目前綜合自動(dòng)化變電站存在的問(wèn)題已成為可能。通過(guò)本次設(shè)計(jì)，學(xué)習(xí)了設(shè)計(jì)的基本方法，鞏固三年以來(lái)學(xué)過(guò)的知識(shí)，培養(yǎng)獨(dú)立分析問(wèn)題的能力，而且加深對(duì)變電站的全面了解。
關(guān)鍵詞：主接線；短路電流；電氣設(shè)備；數(shù)字化變電站


The Design for Electric Part of 10kv Tansformer Station
Student majoring in Agricultural Electrification and Automation
Tutor
Abstract：This graduation project topic is: "the Design for Electric Part of 10kv Tansformer Station”. According to the design request, in the design process, according to the transformer substation geographical environment, the capacity and various return routes number determined the transformer substation electricity host wiring and the station use electricity the wiring, and chooses various transformers the model; Carries on the parameter computation, the picture equivalent network chart, and calculates various voltages rank side the short-circuit current, lists the short-circuit current result table; Calculates the return route continually operating current, chooses each kind of high pressure electrical equipment, and verifies various high pressure unit according to the correlation engineering factor and the short-circuit current computed result table.
Along with the science and technology development, the networking popularization, the digitized technology will become now the science and technology development the front, the transformer substation digitization to further promotes the transformer substation synthesis automation level to get up to the limit the big promoter action, is the future transformer substation construction development direction. Based on this kind of development demand. Through this design, has studied the design essential method, since the consolidated four years have studied the knowledge, raises the independent analysis question ability, moreover deepens to the transformer substation comprehensive understanding.
Key words: Main Wiring; Short-circuit Current; Electrical Equipment; Digital Substation