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class="page-proshow02"><p class="title">詳細(xì)說(shuō)明</p><div id="qy5kz3w" class="box"><p><p style="text-indent:25px">高壓變壓器容量測(cè)試儀一體機(jī)包含中國(guó)四大基本功能，相當(dāng)于4種設(shè)備：有源變壓器容量測(cè)試儀、變壓器損耗模型參數(shù)測(cè)試儀、諧波分析儀、示波器。高壓變壓器容量測(cè)試儀可對(duì)企業(yè)各種不同變壓器的容量、空載電流、空載損耗、短路損耗、阻抗輸入電壓等一系列工頻參數(shù)數(shù)據(jù)進(jìn)行一個(gè)精密的測(cè)量，并能根據(jù)測(cè)量空負(fù)載試驗(yàn)時(shí)的電壓、電流失真度和諧波技術(shù)含量，還可以有效進(jìn)行學(xué)習(xí)矢量問(wèn)題分析，貴州變壓器試驗(yàn)費(fèi)用。主要發(fā)展特點(diǎn)有：體積小、重量輕、測(cè)量結(jié)果準(zhǔn)確度高，貴州變壓器試驗(yàn)費(fèi)用、穩(wěn)定性好，貴州變壓器試驗(yàn)費(fèi)用、操作更加簡(jiǎn)便易學(xué)等優(yōu)點(diǎn)，完全無(wú)法取代我們以往學(xué)生利用多表法測(cè)量變壓器損耗和容量的方法，接線(xiàn)方式簡(jiǎn)單，測(cè)試、記錄管理方便，大幅增加提高了社會(huì)工作環(huán)境效率。變壓器在使用期間一定要聯(lián)系專(zhuān)業(yè)的檢測(cè)人員進(jìn)行檢測(cè)。貴州變壓器試驗(yàn)費(fèi)用</p><div style="width:100%;text-align: center;"><img style="max-width: 640px; max-height: 320px;" alt="貴州變壓器試驗(yàn)費(fèi)用,變壓器" src="https://tyunfile.71360.com/UploadFile/ZRX888/637284368098925781/9464422.png"></div><p style="text-indent:25px">通過(guò)短路阻抗和負(fù)載損耗的測(cè)量，可以驗(yàn)證這兩項(xiàng)指標(biāo)是否在國(guó)家標(biāo)準(zhǔn)及用戶(hù)要求范圍內(nèi)，同時(shí)還可以通過(guò)試驗(yàn)發(fā)現(xiàn)繞組設(shè)計(jì)與制造及載流回路和結(jié)構(gòu)的缺陷。 1、短路阻抗及負(fù)載損耗的測(cè)量，應(yīng)當(dāng)在試品的一個(gè)繞組的線(xiàn)端施加額定頻率，且近似正弦的電流，另一個(gè)繞組短路，各相處于同一個(gè)分接位置。測(cè)量應(yīng)在50%～100.0%額定電流下進(jìn)行；為避免繞組發(fā)熱對(duì)試驗(yàn)結(jié)杲產(chǎn)生明顯誤差，試驗(yàn)測(cè)量應(yīng)迅速進(jìn)行；同時(shí)準(zhǔn)確記錄試驗(yàn)時(shí)繞組溫度。 2、短路阻抗及負(fù)載損耗的測(cè)量與空載試驗(yàn)的測(cè)量線(xiàn)路相同，只是測(cè)量中無(wú)需進(jìn)行電壓波形校正。 3、短路阻抗及負(fù)載損耗的測(cè)量接線(xiàn)；對(duì)于額定電流很小的試品，儀表（電壓表及瓦特表電壓線(xiàn)圈）和電壓互感器的吸收電流在測(cè)量電流中不可忽略時(shí)，應(yīng)將電壓取于電源。 4、短路阻抗是在額定頻率和參考溫度下，一對(duì)繞組中某一繞組端子之間的等效串聯(lián)阻抗；其百分?jǐn)?shù)等于短路電壓與額定電壓之比，測(cè)量時(shí)應(yīng)以三相電流的算術(shù)平均值為準(zhǔn)。貴州變壓器試驗(yàn)費(fèi)用且另一個(gè)繞組短路時(shí)，變壓器在額定頻率及參考溫度下所吸取的有功功率。</p><div style="width:100%;text-align: center;"><img style="max-width: 640px; max-height: 320px;" alt="貴州變壓器試驗(yàn)費(fèi)用,變壓器" src="https://tyunfile.71360.com/UploadFile/ZRX888/637284368292333984/8679976.png"></div><p style="text-indent:25px">變壓器變比電橋工作原理：為標(biāo)準(zhǔn)變壓器型變壓器變比電橋工作原理圖，為標(biāo)準(zhǔn)電阻型變壓器變比電橋工作原理圖。中當(dāng)被測(cè)變壓器的初級(jí)側(cè)XA、XB端與變壓比電橋的NA、NB端共同受電時(shí)，被測(cè)變壓器的次級(jí)側(cè)Xa、XB端與變壓比電橋的Na、NB端產(chǎn)生電壓U1、U2，預(yù)置變壓比電橋比值盤(pán)的示指等于被測(cè)變壓器變壓比的標(biāo)準(zhǔn)值、調(diào)節(jié)電橋誤差盤(pán)使檢流計(jì)G指零，就得到被測(cè)變壓比的誤差值。變壓器變比電橋通常由比值盤(pán)、誤差盤(pán)、相序開(kāi)關(guān)、聯(lián)結(jié)組合開(kāi)關(guān)、輸入變壓器、放大器、內(nèi)附檢流計(jì)等部分組成。其中，比值盤(pán)、誤差盤(pán)、相序連接、連接組合和內(nèi)附檢流計(jì)的靈敏度是需要進(jìn)行常規(guī)檢定的。</p><p style="text-indent:25px">故障分析解決方案：焊接處滲漏油主要是焊接質(zhì)量不良，存在虛焊，脫焊，焊縫中存在小孔，砂眼等缺陷，變壓器出廠(chǎng)時(shí)因有焊藥和油漆覆蓋，運(yùn)行后隱患便暴露出來(lái)，另外由于電磁振動(dòng)會(huì)使焊接振裂，造成滲漏。對(duì)于已經(jīng)出現(xiàn)滲漏現(xiàn)象的，首先找出滲漏點(diǎn)，不可遺漏。針對(duì)滲漏嚴(yán)重部位可采用扁鏟或尖沖子等金屬工具將滲漏點(diǎn)鉚死，控制滲漏量后將治理表面清理干凈，目前多采用高分子復(fù)合材料進(jìn)行固化，固化后即可達(dá)到長(zhǎng)期治理滲漏的目的。密封不良原因，通常箱沿與箱蓋的密封是采用耐油橡膠棒或橡膠墊密封的，如果其接頭處處理不好會(huì)造成滲漏油故障，有的是用塑料帶綁扎，有的直接將兩個(gè)端頭壓在一起，由于安裝時(shí)滾動(dòng)，接口不能被壓牢，起不到密封作用，仍是滲漏油?？捎酶Ｊ浪{(lán)材料進(jìn)行粘接，使接頭形成整體，滲漏油現(xiàn)象得到很大的控制；若操作方便，也可以同時(shí)將金屬殼體進(jìn)行粘接，達(dá)到滲漏治理目的。尤其適用于特種變壓器的變比及相位差測(cè)試。</p><div style="width:100%;text-align: center;"><img style="max-width: 640px; max-height: 320px;" alt="貴州變壓器試驗(yàn)費(fèi)用,變壓器" src="https://tyunfile.71360.com/UploadFile/ZRX888/637284368711884766/5770221.png"></div><p style="text-indent:25px">試驗(yàn)步驟：(1)斷開(kāi)變壓器有載分接開(kāi)關(guān)、風(fēng)冷電源，退出變壓器本體保護(hù)等，將變壓器各繞組接地充分放電，拆除或斷開(kāi)對(duì)外的一-切連線(xiàn)。(2)在筆記本電腦中建立本次測(cè)試數(shù)據(jù)存檔路徑并錄人各種測(cè)量信息。1)建立測(cè)量數(shù)據(jù)的存放路徑應(yīng)能夠清晰反映被試變壓器的安裝位置、運(yùn)行編號(hào)、測(cè)試日期等信息，以便于查找，防止數(shù)據(jù)丟失。2)建立測(cè)試數(shù)據(jù)庫(kù)，錄人實(shí)驗(yàn)性質(zhì)、變壓器擋位、銘牌信息、環(huán)境溫濕度、試驗(yàn)日期、試驗(yàn)人員等基本信息。(3)對(duì)變壓器的不同繞組，按表進(jìn)行測(cè)量，按測(cè)試儀器要求搭接試驗(yàn)接線(xiàn)，對(duì)變壓器每一相繞組進(jìn)行測(cè)量。準(zhǔn)確獲得變比，判斷變壓器是否可以并聯(lián)運(yùn)行。東莞電子測(cè)試變壓器</p><p style="text-indent:25px">變壓器按用途可以分為：配電變壓器、組合式變壓器、干式變壓器、單相變壓器、整流變壓器、抗干擾變壓器等。貴州變壓器試驗(yàn)費(fèi)用</p><p style="text-indent:25px">變壓器變比測(cè)試儀常見(jiàn)故障：變比測(cè)試的目的及意義：（1）檢查變比是否與銘牌相符，以保證對(duì)電壓的正確變換。（2）檢查分接開(kāi)關(guān)的位置是否正確。（3）在變壓器發(fā)生故障后，通過(guò)測(cè)量變比來(lái)檢查繞組匝間是否存在匝間短路，開(kāi)路（交接和大修）。（4）測(cè)出三相變壓器本身變比的不平衡程度，確定零序分量的大小。（5）準(zhǔn)確獲得變比，判斷變壓器是否可以并聯(lián)運(yùn)行。當(dāng)兩臺(tái)并列運(yùn)行的變壓器二次側(cè)空載電壓相差為額定電壓的1%時(shí)，兩臺(tái)變壓器繞組中環(huán)流將達(dá)到額定電流的10%左右時(shí)，會(huì)增加變壓器的損耗，占據(jù)變壓器的容量。因此變比的差值應(yīng)限制在一定范圍之內(nèi)目前常見(jiàn)的變比測(cè)試儀（需要輸入一些銘牌上的數(shù)據(jù)，一般輸入額定電壓，額定分接比，檔位數(shù)），一般電源需要供給220V市電。較新的智能變比測(cè)試儀器（盲測(cè)無(wú)需輸入任何參數(shù)即可測(cè)試），采用新的單片機(jī)，內(nèi)部有鋰電池供電，支持?jǐn)?shù)據(jù)存儲(chǔ)及U盤(pán)轉(zhuǎn)存，實(shí)現(xiàn)打印等微機(jī)處理。貴州變壓器試驗(yàn)費(fèi)用</p></p><br /><p>文章來(lái)源地址: http://www.cdcfah.com/cp/3071067.html</p></div></div></div></div></div><div id="ianh8zw" class="page-right twoColRt"><div id="bxzhqnl" class="box01 margin10 clearfix"><h3><a href="http://www.cdcfah.com/cp/">猜你喜歡</a></h3><div id="8isp0ey" class="recomPic likePro"><a 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