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轉(zhuǎn)換比率:金額 X 10=金幣數(shù)量, 例100元=1000金幣 | 論文字?jǐn)?shù):18651 | ![]() | |
折扣與優(yōu)惠:團(tuán)購(gòu)最低可5折優(yōu)惠 - 了解詳情 | 論文格式:Word格式(*.doc) | ![]() |
摘要:電力系統(tǒng)的快速發(fā)展對(duì)繼電保護(hù)不斷提出新的要求,特別是在高壓且復(fù)雜的電網(wǎng)中,各種保護(hù)都具有其重要性。距離保護(hù)作為一種性能較完善的保護(hù)裝置,它可以應(yīng)用在任何結(jié)構(gòu)復(fù)雜、運(yùn)行方式多變的電力系統(tǒng)中,能較快的切除相間故障。根據(jù)繼電保護(hù)裝置在電力系統(tǒng)中的應(yīng)用,本論文通過(guò)三章內(nèi)容,詳細(xì)介紹了10kv電網(wǎng)中距離保護(hù)的整定配置。首先,本文闡述了課題的研究背景、意義以及距離保護(hù)的研究現(xiàn)狀,并說(shuō)明了論文的主要工作。其次,本文主要闡述了距離保護(hù)的概述、原理以及距離保護(hù)整定計(jì)算的原則,論文第二章主要敘述了距離保護(hù)的一些原理。最后,本文主要闡述了具體的距離保護(hù)整定實(shí)驗(yàn),其中包括方向阻抗繼電器的原理,相間距離保護(hù)的整定調(diào)試方法,實(shí)驗(yàn)接線(xiàn)圖,DKB整定參數(shù)表,距離保護(hù)的整定計(jì)算,實(shí)驗(yàn)步驟,以及實(shí)驗(yàn)結(jié)果分析。實(shí)驗(yàn)結(jié)果分析中主要說(shuō)明了實(shí)驗(yàn)現(xiàn)象、不足以及實(shí)驗(yàn)中遇到的問(wèn)題。 關(guān)鍵詞: 距離保護(hù);整定計(jì)算;整定阻抗
Abstract:The rapid development of power system has been made new requests to relay protection, especially in a complex high-voltage power grid, in which all kinds of protections are important. As a protection device with perfect performance, distance protection can be applied to any complicated power systems with changeful methods of operation. Distance protection can remove faults from phases rapidly. According to the application of protection devices in power system, the passage which is divided into three chapters introduces the adjustment and configuration of distance protection in 10 kV power grid. First, this paper describes the research background, the significance of the research and the research status of distance protection as well as the main tasks.Secondly, the paper explains the summarize of distance protection, the theory and the principle of setting calculation. Chapter II focuses on the theory. Finally, the paper describes the setting experiment of distance protection in reality, including the theory of direction impedance relay, the adjustment method of distance protection between phases, the wiring diagram, DKB setting parameter table, the setting calculation of distance protection, experimental procedure and the analysis of experimental results. The analysis mainly explains the phenomenon and the problems encountered during experiment. Keyword: distance protection; setting calculation; setting impedance
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