wmz-41a型微機(jī)保護(hù)原理及應(yīng)用畢業(yè)論(已修改)
2025-06-19 04:20 本頁面
【正文】 ?？粕厴I(yè)設(shè)計(jì)（論文） 題 目： WMZ41A 型微機(jī)保護(hù)原理及應(yīng)用 學(xué)生姓名： 系 別： 電氣信息工程系 專業(yè)年級： 指導(dǎo)教師： 年 月 日 1 摘要 微機(jī)繼電保護(hù)指的是以數(shù)字式計(jì)算機(jī)（包括微型機(jī)）為基礎(chǔ)而構(gòu)成的繼電保護(hù) 。 母線保護(hù)是保證電網(wǎng)安全穩(wěn)定運(yùn)行的重要系統(tǒng)設(shè)備，它的安全性、可靠性、靈敏性和快速性對保證整個區(qū)域電網(wǎng)的安全具有決定性的意義。在電網(wǎng)中廣泛應(yīng)用過的母聯(lián)電流比相式差動保護(hù)、電流相位比較式差動保護(hù)、比率制動式差動保護(hù)，而就適應(yīng)母線運(yùn)行方式、故障類型 、過渡電阻等方面而言，無疑是按分相電流差動原理構(gòu)成的比率制動式母差保護(hù)效果最佳。 WXH802 由綜合距離方向元件和零序方向元件構(gòu)成全線速動主保護(hù)，由三段式相間距離和接地距離以及六段零序電流方向保護(hù)構(gòu)成后備保護(hù)；并配有綜合重合閘。 [關(guān)鍵詞 ]：微機(jī)保護(hù) 電壓互感器 母差保護(hù) 2 Abstract What the microputer relay protection refers to is take the digital puter (including miniature machine) as the relay protection which the foundation constitutes. The bus protection is guaranteed that the electrical work safe steady operation the important system equipment, its security, the reliability, the sensitivity and the rapidity to guaranteed the entire region electrical work39。s security has the decisive significance. Widely applies the mother in the electrical work to unite the current ratio type differential motion protection, the current phase parisonlike differential motion protection, the ratio brake type differential motion protection, but speaking of adaptation bus bar aspects and so on movement way, breakdown type, transition resistance, without doubt is misses the protection effect according to the phase splitting electric current differential motion principle constitution ratio brake type mother to be best. WXH802 constitutes the entire line by the synthesis from the directional element and zero foreword directional element to speed the main protection, is away from and the touchdown distance as well as by the triadic interaction the zero foreword direction of current protection constitution reserve protection。 And has the synthesis to switch on again. Key words: The microputer protection, the voltage transformer, the mother misses the protection 3 目錄 前言 ??????????????????????????????? 4
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