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電氣工程及其自動(dòng)化畢業(yè)論文設(shè)計(jì)(已修改)

2024-11-15 10:13 本頁面
 

【正文】 (論文) 摘 要 本設(shè)計(jì)的主要內(nèi)容包括: 10/;變電所電氣主接線設(shè)計(jì);短路電流計(jì)算;負(fù)荷計(jì)算;無功功率補(bǔ)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、 避雷器和補(bǔ)償電容器);配電裝置設(shè)計(jì);繼電保護(hù)規(guī)劃設(shè)計(jì);防雷保護(hù)設(shè)計(jì)等。 根據(jù)電氣主線設(shè)計(jì)應(yīng)滿足可靠性、靈活性、經(jīng)濟(jì)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(duì)低壓側(cè)負(fù)荷的統(tǒng)計(jì)計(jì)算采用需要系數(shù)法;為減少無功損耗,提高電能的利用率, 本設(shè)計(jì)進(jìn)行了無功功率補(bǔ)償設(shè)計(jì),使功率因數(shù)從 提高到 ;短路電流的計(jì)算包括短路點(diǎn)的選擇及其具體數(shù)值計(jì)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(jì)算的結(jié)果進(jìn)行校驗(yàn)的方法;繼電保護(hù)設(shè)計(jì)主要是對(duì)變壓器進(jìn)行電流速斷保護(hù)和過電 流保護(hù)的設(shè)計(jì)計(jì)算;配電裝置采用成套配電裝置;本變電所采用避雷針防直擊雷保護(hù)。 本設(shè)計(jì)十分注重運(yùn)用我國(guó)電氣設(shè)計(jì)的新技術(shù)和新的設(shè)備,實(shí)用性及強(qiáng),考慮到是實(shí)際工程的應(yīng)用,便以通俗易懂的語言進(jìn)行闡述。 關(guān)鍵詞:變電所設(shè)計(jì);電氣主接線;繼電保護(hù) I 本科生畢業(yè)設(shè)計(jì)(論文) Abstract The design on the topic of Liaoning Institute of Technology Teaching Building substation expansion preliminary design. The main design elements include : 10/ main transformer substation choice。 Electrical Substation main wiring design。 Shortcircuit current calculation。 Load Calculation。 Reactive power pensation。 Electrical Equipment (bus, HV circuit breakers, isolation switches, current transformer and voltage transformer, and pensation capacitor MOA)。 Distribution Equipment According to the main line of electrical design should meet the reliability, flexibility, economy requirements, The substation main electrical wiring High Side singlebus wiring, low voltage side of the singlebus above the main electrical wiring form。 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 distributio
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