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</div> </div></div> <div id="nxnzvbt5" class="inpage_right"> <div id="nxnzvbt5" class="mbx2"><a href="/">首頁</a> > <a href="/article.html">技術(shù)文章</a> > 微機(jī)繼電保護(hù)測試儀交流試驗(yàn)測試時(shí)應(yīng)注意事項(xiàng)</div> <div id="nxnzvbt5" class="inpage_content"> <div id="nxnzvbt5" class="nr_main_box"> <h1 class="inside_rnewtil">微機(jī)繼電保護(hù)測試儀交流試驗(yàn)測試時(shí)應(yīng)注意事項(xiàng)</h1> <div id="nxnzvbt5" class="inside_rnewtime">點(diǎn)擊次數(shù)：720 更新時(shí)間：2022-07-27</div> <div id="nxnzvbt5" class="inside_rnewcon"><p><strong>微機(jī)繼電保護(hù)測試儀交流試驗(yàn)測試時(shí)應(yīng)注意事項(xiàng)</strong><br/></p><p style="margin-top: 0px; margin-bottom: 0px; padding: 0px; border: 0px; font-variant-numeric: inherit; font-variant-east-asian: inherit; font-stretch: inherit; font-size: 15px; line-height: 23px; font-family: Arial, "Microsoft YaHei", 黑體, sans-serif, Tahoma; vertical-align: baseline; box-sizing: border-box; color: rgb(51, 51, 51); text-align: justify; background-color: rgb(255, 255, 255);">　<span style="margin: 0px; padding: 0px; border: 0px; font: inherit; vertical-align: baseline; box-sizing: border-box;">微機(jī)繼電保護(hù)測試儀</span>“交流試驗(yàn)"模塊是一個通用型、綜合性測試模塊，它有獨(dú)立的4相電壓和3相電流的測試單元以及按序分量輸出測試單元。微機(jī)繼電保護(hù)測試儀交流模塊試驗(yàn)特點(diǎn)做個簡單說明，通過界面上的3P等按鈕進(jìn)行相互的切換。這些獨(dú)立的單元互相調(diào)用，能充分滿足電力系統(tǒng)各種條件下的交流試驗(yàn)測試。它們的共同點(diǎn)是：通過設(shè)置相應(yīng)的電壓或電流為變量，賦予變量一定的變化步長，并且選擇合適的試驗(yàn)方式(有“手動"、“半自動"和“全自動"三種試驗(yàn)方式)，方便地測試各種電壓電流保護(hù)的動作值、返回值，以及動作時(shí)間和返回時(shí)間等，并自動計(jì)算出返回系數(shù)。</p><p style="margin-top: 18px; margin-bottom: 0px; padding: 0px; border: 0px; font-variant-numeric: inherit; font-variant-east-asian: inherit; font-stretch: inherit; font-size: 15px; line-height: 23px; font-family: Arial, "Microsoft YaHei", 黑體, sans-serif, Tahoma; vertical-align: baseline; box-sizing: border-box; color: rgb(51, 51, 51); text-align: justify; background-color: rgb(255, 255, 255);"><br/></p><p style="margin-top: 18px; margin-bottom: 0px; padding: 0px; border: 0px; font-variant-numeric: inherit; font-variant-east-asian: inherit; font-stretch: inherit; font-size: 15px; line-height: 23px; font-family: Arial, "Microsoft YaHei", 黑體, sans-serif, Tahoma; vertical-align: baseline; box-sizing: border-box; color: rgb(51, 51, 51); text-align: justify; background-color: rgb(255, 255, 255);">　　微機(jī)繼電保護(hù)測試儀</p><p style="margin-top: 18px; margin-bottom: 0px; padding: 0px; border: 0px; font-variant-numeric: inherit; font-variant-east-asian: inherit; font-stretch: inherit; font-size: 15px; line-height: 23px; font-family: Arial, "Microsoft YaHei", 黑體, sans-serif, Tahoma; vertical-align: baseline; box-sizing: border-box; color: rgb(51, 51, 51); text-align: justify; background-color: rgb(255, 255, 255);"><br/></p><p style="margin-top: 18px; margin-bottom: 0px; padding: 0px; border: 0px; font-variant-numeric: inherit; font-variant-east-asian: inherit; font-stretch: inherit; font-size: 15px; line-height: 23px; font-family: Arial, "Microsoft YaHei", 黑體, sans-serif, Tahoma; vertical-align: baseline; box-sizing: border-box; color: rgb(51, 51, 51); text-align: justify; background-color: rgb(255, 255, 255);">　　鑒于常用的是“四相電壓和三相電流"的單元，而其它幾個在使用方法上與此基本相同，所以下面僅以“四相電壓和三相電流"為例進(jìn)行詳細(xì)介紹微機(jī)繼電保護(hù)測試儀交流模塊試驗(yàn)特點(diǎn)：</p><p style="margin-top: 18px; margin-bottom: 0px; padding: 0px; border: 0px; font-variant-numeric: inherit; font-variant-east-asian: inherit; font-stretch: inherit; font-size: 15px; line-height: 23px; font-family: Arial, "Microsoft YaHei", 黑體, sans-serif, Tahoma; vertical-align: baseline; box-sizing: border-box; color: rgb(51, 51, 51); text-align: justify; background-color: rgb(255, 255, 255);"><br/></p><p style="margin-top: 18px; margin-bottom: 0px; padding: 0px; border: 0px; font-variant-numeric: inherit; font-variant-east-asian: inherit; font-stretch: inherit; font-size: 15px; line-height: 23px; font-family: Arial, "Microsoft YaHei", 黑體, sans-serif, Tahoma; vertical-align: baseline; box-sizing: border-box; color: rgb(51, 51, 51); text-align: justify; background-color: rgb(255, 255, 255);">　　可以靈活控制輸出4相電壓3相電流，同時(shí)輸出多種組合</p><p style="margin-top: 18px; margin-bottom: 0px; padding: 0px; border: 0px; font-variant-numeric: inherit; font-variant-east-asian: inherit; font-stretch: inherit; font-size: 15px; line-height: 23px; font-family: Arial, "Microsoft YaHei", 黑體, sans-serif, Tahoma; vertical-align: baseline; box-sizing: border-box; color: rgb(51, 51, 51); text-align: justify; background-color: rgb(255, 255, 255);"><br/></p><p style="margin-top: 18px; margin-bottom: 0px; padding: 0px; border: 0px; font-variant-numeric: inherit; font-variant-east-asian: inherit; font-stretch: inherit; font-size: 15px; line-height: 23px; font-family: Arial, "Microsoft YaHei", 黑體, sans-serif, Tahoma; vertical-align: baseline; box-sizing: border-box; color: rgb(51, 51, 51); text-align: justify; background-color: rgb(255, 255, 255);">　　具有按序分量輸出功能，直接設(shè)置序分量數(shù)值，自動組合出各相電壓、電流輸出，并按序分量進(jìn)行變化輸出</p><p style="margin-top: 18px; margin-bottom: 0px; padding: 0px; border: 0px; font-variant-numeric: inherit; font-variant-east-asian: inherit; font-stretch: inherit; font-size: 15px; line-height: 23px; font-family: Arial, "Microsoft YaHei", 黑體, sans-serif, Tahoma; vertical-align: baseline; box-sizing: border-box; color: rgb(51, 51, 51); text-align: justify; background-color: rgb(255, 255, 255);"><br/></p><p style="margin-top: 18px; margin-bottom: 0px; padding: 0px; border: 0px; font-variant-numeric: inherit; font-variant-east-asian: inherit; font-stretch: inherit; font-size: 15px; line-height: 23px; font-family: Arial, "Microsoft YaHei", 黑體, sans-serif, Tahoma; vertical-align: baseline; box-sizing: border-box; color: rgb(51, 51, 51); text-align: justify; background-color: rgb(255, 255, 255);">　　各相電壓、電流輸出均可以任意設(shè)置幅值和相位，幅值可以設(shè)置上限限制</p><p style="margin-top: 18px; margin-bottom: 0px; padding: 0px; border: 0px; font-variant-numeric: inherit; font-variant-east-asian: inherit; font-stretch: inherit; font-size: 15px; line-height: 23px; font-family: Arial, "Microsoft YaHei", 黑體, sans-serif, Tahoma; vertical-align: baseline; box-sizing: border-box; color: rgb(51, 51, 51); text-align: justify; background-color: rgb(255, 255, 255);"><br/></p><p style="margin-top: 18px; margin-bottom: 0px; padding: 0px; border: 0px; font-variant-numeric: inherit; font-variant-east-asian: inherit; font-stretch: inherit; font-size: 15px; line-height: 23px; font-family: Arial, "Microsoft YaHei", 黑體, sans-serif, Tahoma; vertical-align: baseline; box-sizing: border-box; color: rgb(51, 51, 51); text-align: justify; background-color: rgb(255, 255, 255);">　　各量的幅值和相位、頻率均可以設(shè)置變化，變化步長均可任意設(shè)定</p><p style="margin-top: 18px; margin-bottom: 0px; padding: 0px; border: 0px; font-variant-numeric: inherit; font-variant-east-asian: inherit; font-stretch: inherit; font-size: 15px; line-height: 23px; font-family: Arial, "Microsoft YaHei", 黑體, sans-serif, Tahoma; vertical-align: baseline; box-sizing: border-box; color: rgb(51, 51, 51); text-align: justify; background-color: rgb(255, 255, 255);"><br/></p><p style="margin-top: 18px; margin-bottom: 0px; padding: 0px; border: 0px; font-variant-numeric: inherit; font-variant-east-asian: inherit; font-stretch: inherit; font-size: 15px; line-height: 23px; font-family: Arial, "Microsoft YaHei", 黑體, sans-serif, Tahoma; vertical-align: baseline; box-sizing: border-box; color: rgb(51, 51, 51); text-align: justify; background-color: rgb(255, 255, 255);">　　Ux可以設(shè)置多種輸出方式組合，也可以任意置數(shù)</p><p style="margin-top: 18px; margin-bottom: 0px; padding: 0px; border: 0px; font-variant-numeric: inherit; font-variant-east-asian: inherit; font-stretch: inherit; font-size: 15px; line-height: 23px; font-family: Arial, "Microsoft YaHei", 黑體, sans-serif, Tahoma; vertical-align: baseline; box-sizing: border-box; color: rgb(51, 51, 51); text-align: justify; background-color: rgb(255, 255, 255);"><br/></p><p style="margin-top: 18px; margin-bottom: 0px; padding: 0px; border: 0px; font-variant-numeric: inherit; font-variant-east-asian: inherit; font-stretch: inherit; font-size: 15px; line-height: 23px; font-family: Arial, "Microsoft YaHei", 黑體, sans-serif, Tahoma; vertical-align: baseline; box-sizing: border-box; color: rgb(51, 51, 51); text-align: justify; background-color: rgb(255, 255, 255);">　　可以全自動、半自動、手動變化，且在輸出時(shí)可以任意切換</p><p style="margin-top: 18px; margin-bottom: 0px; padding: 0px; border: 0px; font-variant-numeric: inherit; font-variant-east-asian: inherit; font-stretch: inherit; font-size: 15px; line-height: 23px; font-family: Arial, "Microsoft YaHei", 黑體, sans-serif, Tahoma; vertical-align: baseline; box-sizing: border-box; color: rgb(51, 51, 51); text-align: justify; background-color: rgb(255, 255, 255);"><br/></p><p style="margin-top: 18px; margin-bottom: 0px; padding: 0px; border: 0px; font-variant-numeric: inherit; font-variant-east-asian: inherit; font-stretch: inherit; font-size: 15px; line-height: 23px; font-family: Arial, "Microsoft YaHei", 黑體, sans-serif, Tahoma; vertical-align: baseline; box-sizing: border-box; color: rgb(51, 51, 51); text-align: justify; background-color: rgb(255, 255, 255);">　　在輸出狀態(tài)可以直接修改幅值、相位、步長以及變量的個數(shù)</p><p style="margin-top: 18px; margin-bottom: 0px; padding: 0px; border: 0px; font-variant-numeric: inherit; font-variant-east-asian: inherit; font-stretch: inherit; font-size: 15px; line-height: 23px; font-family: Arial, "Microsoft YaHei", 黑體, sans-serif, Tahoma; vertical-align: baseline; box-sizing: border-box; color: rgb(51, 51, 51); text-align: justify; background-color: rgb(255, 255, 255);"><br/></p><p style="margin-top: 18px; margin-bottom: 0px; padding: 0px; border: 0px; font-variant-numeric: inherit; font-variant-east-asian: inherit; font-stretch: inherit; font-size: 15px; line-height: 23px; font-family: Arial, "Microsoft YaHei", 黑體, sans-serif, Tahoma; vertical-align: baseline; box-sizing: border-box; color: rgb(51, 51, 51); text-align: justify; background-color: rgb(255, 255, 255);">　　可以直接顯示功率數(shù)值，用于校驗(yàn)功率計(jì)量儀表</p><p style="margin-top: 18px; margin-bottom: 0px; padding: 0px; border: 0px; font-variant-numeric: inherit; font-variant-east-asian: inherit; font-stretch: inherit; font-size: 15px; line-height: 23px; font-family: Arial, "Microsoft YaHei", 黑體, sans-serif, Tahoma; vertical-align: baseline; box-sizing: border-box; color: rgb(51, 51, 51); text-align: justify; background-color: rgb(255, 255, 255);"><br/></p><p style="margin-top: 18px; margin-bottom: 0px; padding: 0px; border: 0px; font-variant-numeric: inherit; font-variant-east-asian: inherit; font-stretch: inherit; font-size: 15px; line-height: 23px; font-family: Arial, "Microsoft YaHei", 黑體, sans-serif, Tahoma; vertical-align: baseline; box-sizing: border-box; color: rgb(51, 51, 51); text-align: justify; background-color: rgb(255, 255, 255);">　　可測量動作值、返回值、動作時(shí)間、返回時(shí)間</p><p style="margin-top: 18px; margin-bottom: 0px; padding: 0px; border: 0px; font-variant-numeric: inherit; font-variant-east-asian: inherit; font-stretch: inherit; font-size: 15px; line-height: 23px; font-family: Arial, "Microsoft YaHei", 黑體, sans-serif, Tahoma; vertical-align: baseline; box-sizing: border-box; color: rgb(51, 51, 51); text-align: justify; background-color: rgb(255, 255, 255);"><br/></p><p style="margin-top: 18px; margin-bottom: 0px; padding: 0px; border: 0px; font-variant-numeric: inherit; font-variant-east-asian: inherit; font-stretch: inherit; font-size: 15px; line-height: 23px; font-family: Arial, "Microsoft YaHei", 黑體, sans-serif, Tahoma; vertical-align: baseline; box-sizing: border-box; color: rgb(51, 51, 51); text-align: justify; background-color: rgb(255, 255, 255);">　　微機(jī)繼電保護(hù)測試儀交流試驗(yàn)測試時(shí)應(yīng)注意事項(xiàng)</p><p style="margin-top: 18px; margin-bottom: 0px; padding: 0px; border: 0px; font-variant-numeric: inherit; font-variant-east-asian: inherit; font-stretch: inherit; font-size: 15px; line-height: 23px; font-family: Arial, "Microsoft YaHei", 黑體, sans-serif, Tahoma; vertical-align: baseline; box-sizing: border-box; color: rgb(51, 51, 51); text-align: justify; background-color: rgb(255, 255, 255);"><br/></p><p style="margin-top: 18px; margin-bottom: 0px; padding: 0px; border: 0px; font-variant-numeric: inherit; font-variant-east-asian: inherit; font-stretch: inherit; font-size: 15px; line-height: 23px; font-family: Arial, "Microsoft YaHei", 黑體, sans-serif, Tahoma; vertical-align: baseline; box-sizing: border-box; color: rgb(51, 51, 51); text-align: justify; background-color: rgb(255, 255, 255);">　　在測試常規(guī)繼電器時(shí)，“開關(guān)抖動延時(shí)"應(yīng)設(shè)置得大一點(diǎn)，比如20ms 左右;若測試的返回值誤差過大，可能是由于繼電器接點(diǎn)抖動過大，這時(shí)可以選擇“手動"方式來完成;在測試?yán)^電器的動作時(shí)間時(shí)，微機(jī)繼電保護(hù)測試儀輸出的交流量應(yīng)大于保護(hù)的啟動值，以保證保護(hù)可靠動作。</p><p style="margin-top: 18px; margin-bottom: 0px; padding: 0px; border: 0px; font-variant-numeric: inherit; font-variant-east-asian: inherit; font-stretch: inherit; font-size: 15px; line-height: 23px; font-family: Arial, "Microsoft YaHei", 黑體, sans-serif, Tahoma; vertical-align: baseline; box-sizing: border-box; color: rgb(51, 51, 51); text-align: justify; background-color: rgb(255, 255, 255);"><br/></p><p style="margin-top: 18px; margin-bottom: 0px; padding: 0px; border: 0px; font-variant-numeric: inherit; font-variant-east-asian: inherit; font-stretch: inherit; font-size: 15px; line-height: 23px; font-family: Arial, "Microsoft YaHei", 黑體, sans-serif, Tahoma; vertical-align: baseline; box-sizing: border-box; color: rgb(51, 51, 51); text-align: justify; background-color: rgb(255, 255, 255);">　　在測試多段式過流保護(hù)時(shí)，一般是一段一段地分別進(jìn)行試驗(yàn)。也就是說，做Ⅰ段定值的時(shí)候，把Ⅱ段、II段都退出，然后逐步升電流直到保護(hù)動作。在這種方式下測出的動作時(shí)間往往是不準(zhǔn)確的。測動作時(shí)間時(shí)，可直接由微機(jī)繼電保護(hù)測試儀輸出1.2倍及以上的整定動作值(低電壓保護(hù)為0.8倍及以下)，保證保護(hù)能夠啟動動作，這樣測出來的動作時(shí)間就比較準(zhǔn)確。</p><p style="margin-top: 18px; margin-bottom: 0px; padding: 0px; border: 0px; font-variant-numeric: inherit; font-variant-east-asian: inherit; font-stretch: inherit; font-size: 15px; line-height: 23px; font-family: Arial, "Microsoft YaHei", 黑體, sans-serif, Tahoma; vertical-align: baseline; box-sizing: border-box; color: rgb(51, 51, 51); text-align: justify; background-color: rgb(255, 255, 255);"><br/></p><p style="margin-top: 18px; margin-bottom: 0px; padding: 0px; border: 0px; font-variant-numeric: inherit; font-variant-east-asian: inherit; font-stretch: inherit; font-size: 15px; line-height: 23px; font-family: Arial, "Microsoft YaHei", 黑體, sans-serif, Tahoma; vertical-align: baseline; box-sizing: border-box; color: rgb(51, 51, 51); text-align: justify; background-color: rgb(255, 255, 255);">　　測試距離保護(hù)時(shí)，短路阻抗在小于整定定值的時(shí)候保護(hù)才會出口，所以一般取定值的0.95倍來做試驗(yàn)，可保證保護(hù)能夠可靠出口;在模擬接地距離故障的時(shí)候，零序補(bǔ)償系數(shù)一定要設(shè)置正確;校驗(yàn)零序電流定值時(shí)，要注意區(qū)分定值單里給出的是3I的定值，還是Ⅰ的定值。如果是Ⅰ的定值，在測試模塊的左下角會有顯示，如果是3Ⅰ的定值，則將左下角顯示的Ⅰ的值乘3，看是不是和定值一樣。對于距離和零序保護(hù)定值的校驗(yàn)，后面有專門的校驗(yàn)?zāi)K，測試會更方便。</p><p style="margin-top: 18px; margin-bottom: 0px; padding: 0px; border: 0px; font-variant-numeric: inherit; font-variant-east-asian: inherit; font-stretch: inherit; font-size: 15px; line-height: 23px; font-family: Arial, "Microsoft YaHei", 黑體, sans-serif, Tahoma; vertical-align: baseline; box-sizing: border-box; color: rgb(51, 51, 51); text-align: justify; background-color: rgb(255, 255, 255);"><br/></p><p style="margin-top: 18px; margin-bottom: 0px; padding: 0px; border: 0px; font-variant-numeric: inherit; font-variant-east-asian: inherit; font-stretch: inherit; font-size: 15px; line-height: 23px; font-family: Arial, "Microsoft YaHei", 黑體, sans-serif, Tahoma; vertical-align: baseline; box-sizing: border-box; color: rgb(51, 51, 51); text-align: justify; background-color: rgb(255, 255, 255);">　　測試低周保護(hù)時(shí)，選擇頻率可變。頻率變化的步長根據(jù)精度的要求來設(shè)置，推薦選擇“自動"的方式來完成，因?yàn)榈椭苡?df/dt 的閉鎖值，用手動方式的話不好控制。頻率從50開始下降一直降到保護(hù)動作為止，需要注意的是，間隔時(shí)間應(yīng)該大于保護(hù)的動作時(shí)間。</p><div><br/></div></div> <div id="nxnzvbt5" class="inside_newsthree"> <p 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