【正文】 in design elements include : 35/6kV main transformer substation choice Electrical Substation main wiring design Shortcircuit current calculation。配電裝置采用成套配電裝置。短路電流的計算包括短路點的選擇及其具體數(shù)值計算，而電氣設(shè)備選擇采用了按額定電流選擇，按短路電流計算的結(jié)果進行校驗的方法。根據(jù)電氣主線設(shè)計應(yīng)滿足可靠性、靈活性、經(jīng)濟性的要求，本變電所電氣主接線的高壓側(cè)采用單母線接線，低壓側(cè)采用單母線分段的電氣主接線形式；對低壓側(cè)負荷的統(tǒng)計計算采用需要系數(shù)法。摘 要本設(shè)計為35KV油田變電所電氣部分的設(shè)計。設(shè)計的主要內(nèi)容包括：35/6kV變電所主變壓器選擇、變電所電氣主接線設(shè)計、短路電流計算、負荷計算、無功功率補償、電氣設(shè)備選擇（母線、高壓斷路器、隔離開關(guān)、電流互感器、電壓互感器、避雷器等）、繼電保護規(guī)劃設(shè)計、防雷保護設(shè)計等。為減少無功損耗，提高電能的利用率， 本設(shè)計進行了無功功率補償設(shè)計。繼電保護設(shè)計主要是對變壓器進行電流速斷保護和過電流保護的設(shè)計計算。本變電所采用避雷針防直擊雷保護。 Load Calculation Reactive power pensation Electrical Equipment (bus HV circuit breakers, isolation switches and voltage transformer, and pensation capacitor MOA), relay Planning and Design。 the lowpressure side load calculated using the statistical needs coefficient. To reduce the reactive power loss, increased energy utilization, The design of reactive power pensation design, power factor from to . shortcircuit current calculations include shortcircuit point for the selection and specific numerical calculation, and electrical equipment chosen by the choice of rated current, shortcircuit current calculation by the results of the calibration methods. relay design of the main transformer Current Protection and overcurrent protection design. distribution installations plete set of power distribution equipment. The substation using direct lightning stroke prevention lightning protection. Key words：35kV Substation design Main electrical wiring Relay protection目 錄摘 要 IAbstract II目 錄 I第1章 緒論 1 課題的目的及意義 1 35kV變電所設(shè)計模式的研究與發(fā)展 1 3第2章 變壓器的選擇與負荷預(yù)測 4 變壓器的選擇 4 變壓器的容量及臺數(shù)的確定 4 負荷預(yù)測 5 周邊地區(qū)油田產(chǎn)能負荷 6 地區(qū)負荷 6 無功功率補償 7 并聯(lián)電力電容器補償 7 無功補償容量的計算 8第3章 電氣主接線 10 對電氣主接線的基本要求和原則 10 電氣主接線的基本要求 10 電氣主接線的基本原則 11 主接線設(shè)計 11 單母線接線 12 單母線分段接線 12 主接線的選擇 13 35kV側(cè)主接線方案的確定 13 6kV側(cè)主接線的確定 15第4章 短路計算 17 短路概述 17 短路的成因 17 短路的危害 18 短路的計算 19 計算步驟 19 計算方法 19 短路電流計算的計算過程 19第5章 電氣設(shè)備的選擇 25 電氣設(shè)備及分類 25 電氣設(shè)備選擇的原則 26 高壓斷路器選擇 27 選擇的思路 28 斷路器的選擇與校驗 29 母線的選擇 31 導(dǎo)體截面的選擇與校驗 31 35kV側(cè)母線的選擇及校驗 32 6kV側(cè)母線的選擇及校驗 34 隔離開關(guān)的選擇 36 35kV側(cè)隔離開關(guān)的選擇及校驗 36 6kV側(cè)隔離開關(guān)的選擇及校驗 37 電流互感器的選擇 38 6kV電流互感器選擇的分類 38 35kV側(cè)電流互感器選擇 40 6kV側(cè)電流互感器選擇 40 電壓互感器的選擇 41 35kV側(cè)電壓互感器選擇 41 6kV側(cè)電壓互感器選擇 42第6章 繼電保護 43 繼電保護 43 繼電保護原理 44 繼電保護的配置 45 變壓器的保護 45 母線的保護 45 線路的保護 46 電容器的保護 47 過電流與速斷保護整定 47 過電流整定值計算 47 速斷保護整定值計算 51 交流所用電及直流系統(tǒng) 52 52 直流系統(tǒng) 52第7章 配電裝置 54 配電裝置的類型和要求 54 戶內(nèi)配電裝置設(shè)備 54 戶外配電裝置設(shè)備 56 配電裝置的應(yīng)用 56 本所電氣布置規(guī)劃方案 57第8章 防雷 58 雷電過電壓 58 雷電的危害 58 避雷器的選擇 59 防雷保護計算 59經(jīng)濟與社會效益分析 61總結(jié) 62致謝 63參考文獻 64 CONTNTSChinese abstract IEnglish abstract IIChapter 1 Introduction 1 The purpose and meaning of topic 1 The 35 kV substation designs the research and development 1 Design contentses 3Chapter 2 Choice of transformer and load forecasting 4 The choice of transformer 4 The capacity of the transformer and the assurance of the set number 4 Carry an estimate 5 Carry an estimate 6 The region carries 6 Reactive power pensation 7 Merge an electric power capacitor to pensate 7 The calculation that pensates capacity without the achievement 8Chapter 3 Main electrical connection scheme 10 Basic request and principle of main electrical connection scheme 10 Basic request of main electrical connection scheme 10 The basic principle of main electrical connection scheme 11 Main electrical scheme design 11 The single bus line wiring 12 The single bus line wiring of the single bus line wiring 12 The lord connects a linear choice 13 The 35 kV side lord connects the assurance of line project 13 The 6 kV side lord connects a linear assurance 15Chapter 4 Short circuit putes 17 The short circuit outlines 17 Cause formation of short circuit 17 The harm of short circuits 18 The calculation of short circuit 19 Calculation steps 19 Calculation methods 19 The calculation process that shortcircuit electric currents pute 19Chapter 5 The choice of electricity equipments 25 Electricity equipments and classification 25 The electricity equipments chooses 26 The chooses of high voltage circuit breaker 27 The way of thinking of choices 28 The choices and check of high voltsge circuit breaker 29 The choices of bus line 31 The choices and check of conductors cut 31 35 kV side bus line of choice and check 32 6 kV side bus line of choice and check 33 The choices of disconnector 35 The 35 kV side disconnector choice and check 35 The 6 kV side disconnector choice and check 36 The choices of current transformer 37 Classification of 6kV current transformer choices 37 The choices of 35kV current transformer choices 39 The choices of 6kV current transformer choices 39 The choices of current transformer 40 The choices of 35KV current transformer 40 The choices of 6kV current transformer 40Chapter 6 Relay protection 41 Relay protection 41 Protect of relay protection 42 Configuration of relay protection 43 The protection of transformer 43 The protection of bus line 43 The protection of circuit 44 The protection of circuit 45 Overcurrent and instantaneous overcurrent protection 45 Conduct electricity to flow whole settle value calculation 45 Instantaneous overcurrent protection settle value calculation 48 Exchanges of electricity and DC systems 52 The exchange of power system and low voltage distribution 52 DC system 52Chapter 7 Power distribution unit 54 Type and request of power distribution unit 54 Power distribution unit indoor 54 Power distribution unit outdoor 56 The application of power distribution unit 56 This electricity decoration programs a project 57Chapter 8 Defends thunder 58 The thunder and lightning leads electric voltage 58 The harm of the thunder and lightning 58 The choice of lightning arrester 58 Defend a thunder protection calculat