35kv降壓變電所開題報告-資料下載頁
2025-03-24 04:36本頁面
【正文】 不同類型的發(fā)電廠、升壓和降壓變電所、輸電線路和用戶組成。眾所周知，電能也是現(xiàn)代工業(yè)生產(chǎn)的主要能源和動力。電能既易于由其它形式的能量轉(zhuǎn)換而來，又易于轉(zhuǎn)換為其它形式的能量以供應(yīng)用；電能的輸送和分配既簡單經(jīng)濟，又便于控制、調(diào)節(jié)和測量，有利于實現(xiàn)生產(chǎn)過程自動化。原文 2The protection of the main current of the protection of the grid, the grid distance protection, differential protection of power networks, power grids of highfrequency protection, automatic reclosing, power transformer relay protection, power capacitor protection. With the development of relay protection of power systems and automation technology in the development of more than a decade, as China39。s power system to the highvoltage, large units, the development of modern large power system, protective relaying and application level access to a large improvement in the 5039。s in the 20th century, almost all mechanical ponents using electromagnetic pose. With the development of semiconductor devices, be extended to the use of rectifier ponents and separation of ponents from semiconductor devices, in the 20th century, 7039。s, the use of integrated circuit devices consisting of relay protection in power system has been widely used. 80s in the 20th century, Microputer automatic device in a safe and gradual application of relay protection devices, with the new technologies, the adoption of new technology, relay protection hardware reliability, ease of operation and maintenance do not point to raise, following the the level of power protection technology will reach a higher level. 翻譯 保護主要有電網(wǎng)的電流保護、電網(wǎng)的距離保護、電網(wǎng)的差動保護、電網(wǎng)的高頻保護、自動重合閘、電力變壓器的繼電保護、電力電容器的保護。繼電保護的發(fā)展是隨著電力系統(tǒng)和自動化技術(shù)的發(fā)展而發(fā)展的，十幾年來，隨著我國電力系統(tǒng)向高電壓、大機組、現(xiàn)代化大電網(wǎng)發(fā)展，繼電保護及其應(yīng)用水平獲得很大的提高，在20世紀50年代，差不多都是用電磁型機械元件構(gòu)成。隨著半導(dǎo)體器件的發(fā)展，陸續(xù)推廣到利用整流型元件和由半導(dǎo)體分離元件組成的裝置，在20 世紀70年代以后，利用集成電路構(gòu)成的裝置在電力系統(tǒng)繼電保護中得到廣泛的應(yīng)用。在20世紀80年代，微型機在安全自動裝置和繼電保護裝置中逐漸應(yīng)用，隨著新技術(shù)，新工藝的采用，繼電保護硬件設(shè)備的可靠性，運行維護方便性也不斷提高。繼電保護技術(shù)水平將達到更高的水平。指導(dǎo)教師審閱意見：開題報告成績： 指導(dǎo)教師（簽字）： 年 月 日備注：14
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