變電站外文翻譯外文文獻(xiàn)英文文獻(xiàn)變電站的綜合概述-預(yù)覽頁
【正文】 ll automatically reclosing devices and the gateway to restore power quickly. This is to protect the lower the load is very favorable. This will not only protect the safety of the load equipment is in favor of extending the service life and reduce equipment investment, and improved reliability of electricity supply, which is to improve the efficiency of industrial and agricultural production is very have been equipped with various protection devices, these devices are based on lower shortcircuit load to a maximum load conditions, such as configuration settings and, therefore, in the event of the failure was similar to the specific circumstances under to judge by the system should automatically trip protection, and now the protection of the whole trip has been a very short time, the lifting of the fault, the system will automatically reclosing devices and the gateway to restore power quickly. This is to protect the lower the load is very favorable. This will not only protect the safety of the load equipment is in favor of extending the service life and reduce equipment investment, and improved reliability of electricity supply, which is to improve the efficiency of industrial and agricultural production is very in the efficiency of industrial products means lower product costs, increase market petitiveness, which will enable enterprises to increase for the national economy and make a greater contribution to development. Electricity supply reliability and other fields, can improve people39。s economic development an important indicator of the level. As the power in the industry and the importance of the national economy, electricity transmission and distribution of electric energy used in these areas is an indispensable ponent.。設(shè)計(jì)是否合理，不僅直接影響基建投資、運(yùn)行費(fèi)用和有色金屬的消耗量，也會(huì)反映在供電的可靠性和安全生產(chǎn)方面，它和企業(yè)的經(jīng)濟(jì)效益、設(shè)備人身安全密切相關(guān)。變電所是使電廠或上級(jí)電站經(jīng)過調(diào)整后的電能書送給下級(jí)負(fù)荷，是電能輸送的重要部分。因此，變電所在整個(gè)電力系統(tǒng)中對(duì)于保護(hù)供電的可靠性、靈敏性等指標(biāo)十分重要。根據(jù)電壓等級(jí)還可分為中壓變電所（60千伏及以下）、高壓變電所（110～220千伏）、超高壓變電所（330～765千伏）和 特高壓變電所（1000千伏及以上）。升壓變電所通常是發(fā)電廠升壓站部分，緊靠發(fā)電廠。變電所內(nèi)都裝設(shè)有各種保護(hù)裝置，這些保護(hù)裝置是根據(jù)下級(jí)負(fù)荷地短路、最大負(fù)荷等情況來整定配置的，因此，在發(fā)生類似故障是可根據(jù)具體情況由系統(tǒng)自動(dòng)做出判斷應(yīng)跳閘保護(hù)，并且，現(xiàn)在的跳閘保護(hù)整定時(shí)間已經(jīng)很短，在故障解除后，系統(tǒng)內(nèi)的自動(dòng)重合閘裝置會(huì)迅速和閘恢復(fù)供電。生活用電等領(lǐng)域的供電可靠性，可以提高人民生活質(zhì)量，改善生活條件等。該地區(qū)變電所所涉及方面多，考慮問題多，分析變電所擔(dān)負(fù)的任務(wù)及用戶負(fù)荷等情況，選擇所址，利用用戶數(shù)據(jù)進(jìn)行負(fù)荷計(jì)算，確定用戶無功功率補(bǔ)償裝置。隨著電力技術(shù)高新化、復(fù)雜化的迅速發(fā)展，電力系統(tǒng)在從發(fā)電到供電的所有領(lǐng)域中，通過新技術(shù)的使用，都在不斷的發(fā)生變化。從負(fù)荷增長方面闡明了建站的必要性，然后通過對(duì)擬建變電站的概括以及出線方向來考慮，并通過對(duì)負(fù)荷資料的分析，安全，經(jīng)濟(jì)及可靠性方面考慮，確定了10kV以及站用電的主接線，然后又通過負(fù)荷計(jì)算及供電范圍確定了主變壓器臺(tái)數(shù)，容量及型號(hào)，同時(shí)也確定了站用變壓器的容量及型號(hào)，最后，根據(jù)最大持續(xù)工作電流及短路計(jì)算的計(jì)算結(jié)果，做出線路保護(hù)，變壓器保護(hù)，母線保護(hù)，防雷保護(hù)。設(shè)計(jì)變電站的原則和目的以及變電站的基本情況。第四章是短流計(jì)算，首先確定短路點(diǎn)， 計(jì)算各元件的電抗，然后對(duì)各短路點(diǎn)分別進(jìn)行計(jì)算，得出各短路點(diǎn)的短路電流。[關(guān)鍵詞] 變電站、負(fù)荷、輸電系統(tǒng)、配電系統(tǒng)、高壓網(wǎng)絡(luò)、補(bǔ)償裝置6
黨政相關(guān)相關(guān)推薦
鄂ICP備17016276號(hào)-1