【摘要】：井下中央變電所是礦山供配電系統(tǒng)的重要組成部分。主要保證井下掘進(jìn)、排水、通風(fēng)、監(jiān)測、照明等設(shè)備的正常用電,確保礦山主要設(shè)備的正常運(yùn)行。由于礦山用電屬于一級負(fù)荷,停電將造成很重大的經(jīng)濟(jì)損失。因此,中央電變電所必須滿足各項基本參數(shù)要求,首先滿足供電系統(tǒng)的可靠性,其次是設(shè)計的合理性與經(jīng)濟(jì)性。因此要高標(biāo)準(zhǔn)、高質(zhì)量地建設(shè)好井下中央變電所,設(shè)計顯得尤其重要。井下中央變電系整個井下的供電中心,承擔(dān)著井下各個掘進(jìn)面的配電、受電、變電任務(wù)。中央變電所由高低壓配電柜、移動變電站或防暴型干式變壓器、無功補(bǔ)償設(shè)備、漏電檢測等主要部分組成。變電所供電設(shè)計首先要了解礦區(qū)的生產(chǎn)系統(tǒng)、通風(fēng)排水系統(tǒng)、采礦方法及使用的生產(chǎn)機(jī)械設(shè)備情況,根據(jù)用電負(fù)荷、用電設(shè)備的布置,確定變電所的整體主接線系統(tǒng)。在此基礎(chǔ)上,通過公式計算確定各項額定值,再由此選擇變壓器、電纜、電器等主要設(shè)備,并詳細(xì)計算出短路電流及各種保護(hù)整定值。文章通過合理的電氣主接線方式設(shè)計、合理的選擇電氣裝置、精確計算各項保護(hù)值、合理布局混凝土地面以達(dá)到變電所供電系統(tǒng)運(yùn)行可靠性和經(jīng)濟(jì)合理性,同時具備可操作性、具有擴(kuò)建的可能性和改變運(yùn)行方式時的靈活性,使其更加符合實際需求。文章在深入了解儲備10kV中央變電所電氣設(shè)計的相關(guān)理論知識及設(shè)計經(jīng)驗基礎(chǔ)上,深入研究中央變電所供配電系統(tǒng)的日常維護(hù)與管理,獨(dú)立分析和解決了供配電系統(tǒng)問題以及對所研究的問題進(jìn)行了優(yōu)化研究。
[Abstract]:Underground central substation is an important part of mine power supply and distribution system. To ensure the normal use of underground tunneling, drainage, ventilation, monitoring, lighting and other equipment, to ensure the normal operation of the main equipment in the mine. Because the mine electric power belongs to the first class load, the blackout will cause the very big economic loss. Therefore, the central electric substation must meet the requirements of basic parameters, first of all, meet the reliability of the power supply system, secondly, the rationality and economy of the design. Therefore, the design of underground central substation is especially important to high standard and high quality. The power supply center of the whole downhole central substation system undertakes the task of distribution, receiving electricity and transforming electricity. The central substation consists of high and low voltage distribution cabinets, mobile substations or riot-proof dry transformers, reactive power compensation equipment, leakage detection and so on. In the design of substation power supply, first of all, the production system, ventilation and drainage system, mining method and production machinery and equipment used in mining area should be understood. According to the electric load and the arrangement of electric equipment, the overall main wiring system of substation should be determined. On this basis, the rated values are determined by formula calculation, and then the main equipments such as transformers, cables and electrical appliances are selected, and the short-circuit current and various protection setting values are calculated in detail. Through the rational design of the main electrical wiring mode, the reasonable selection of the electrical devices, the accurate calculation of the protection values, the reasonable distribution of concrete floor to achieve the reliability and economic rationality of the power supply system of the substation, and the maneuverability of the system. It has the possibility of expansion and the flexibility of changing the operation mode to make it more in line with the actual needs. On the basis of deep understanding of the relevant theoretical knowledge and design experience of electrical design of reserve 10kV central substation, this paper deeply studies the daily maintenance and management of power supply and distribution system of central substation. The problem of power supply and distribution system is analyzed and solved independently.
【學(xué)位授予單位】：青島理工大學(xué)
【學(xué)位級別】：碩士
【學(xué)位授予年份】：2017
【分類號】：TD611.2

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