化工廠總變配電所供電系統(tǒng)初步設計模板

1、化工廠總變酉己電所供電系統(tǒng)初步設計鹿域JL等隗畢業(yè)設計說明書某化工廠總變配電所供電系統(tǒng)初步設計專 業(yè) 電氣工程及其自動化學生姓名班級學號指導教師完成日期摘要該設計是關于工程機械制造廠供電系統(tǒng)及變電所的設計。設計的 思路是依據(jù)國家規(guī)范要求以及該廠二類負荷對供電可靠性的要求， 制定設計方案及供電措施。在該設計中，依據(jù)給定的設計范圍和基礎 資料，建立起適合自身生產(chǎn)和發(fā)展需要的供電系統(tǒng)。該企業(yè)的供電系 統(tǒng)由一條10KV高壓進線電源提供，為確保負荷供電的可靠性，在高 壓側(cè)又設有“單母線分段制的電源供電方式，另外在兩個車間變電所 的低壓側(cè)設有聯(lián)絡線，從而使整個供電系統(tǒng)更具有其可靠性和靈活 性。為適應機械類

2、企業(yè)，用電負荷變化大、自然功率因數(shù)低的特點， 該設計中采用并聯(lián)電容器的方法來補償無功功率，以減少供電系統(tǒng)的 電能損耗和電壓損失，同時提高了供電電壓的質(zhì)量。設計中體現(xiàn)了安 全、可靠、靈活、經(jīng)濟的原則。確定高壓變配電所的位置、形式、數(shù) 量及主變臺數(shù)與容量等；確定二次繼電保護方案，選用先進的自動保 護裝置；確定變電所防雷過壓保護與接地保護方案；根據(jù)設計要求， 繪制全廠供配電系統(tǒng)圖、二次繼電保護電路圖及高壓變配電所平、剖 面圖等關鍵詞：供電系統(tǒng)；安全可靠；主接線；設計The total change in a chemical plant distribution of the preliminary

3、design of the power supply systemAbstract： In this design, based on the scope and basis for the design of information, and set up a production and development suited to their own needs electricity system. The enterprise distribution system by a 35KV high voltage line and into the high pressure into

4、a 10KV power line to provide, in order to ensure the reliability of electricity load in a high- pressure side and the single-bus bar above system power supply, another workshop in two adjacent low voltage transformer substation with the line of contact, so that the entire power supply system more re

5、liability and flexibility. To meet the mechanical type enterprises, large electricity load change, natural features low power factor, the design of a parallel connection capacitor approach to compensation without merit power, the electricity supply system to reduce wear and voltage loss, while enhan

6、cing the quality of power supply voltage. Design reflects a safe, reliable, flexible and economic principle. Determine the locationchange distribution, form, quantity and the change in the number and capacity of numbers; Identify two relay programmes choice advanced automatic protection devices; identify substations mine over pressure protection and grounded protection programme. According to the design requirements for the distribution chart mapping the entire plant, and two relay circuit diagra