電源變壓器檢測結(jié)果創(chuàng)新服務(wù) 展榮新精密電子供應(yīng)-b2b網(wǎng)站_b2b電子商務(wù)平臺【買產(chǎn)品】-上?？谄蚴称酚邢薰?/title><meta name="description" content="通過短路阻抗和負(fù)載損耗的測量，可以驗(yàn)證這兩項(xiàng)指標(biāo)是否在國家標(biāo)準(zhǔn)及用戶要求范圍內(nèi)，同時還可以通過試驗(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，電源變壓器檢測結(jié)果。1、短路阻抗及負(fù)載損耗的測量，應(yīng)當(dāng)在試品的一個繞組的線端施加額定頻率，且近似正弦"><meta name="keywords" content="電源變壓器檢測結(jié)果,變壓器"><link rel="canonical" href="http://www.cdcfah.com/"/><meta name="applicable-device" content="pc"><link rel="shortcut icon" href="/static/new_net_01/images/favicon.ico"><link rel="stylesheet" href="/static/new_net_01/css/slick.css" /><link rel="stylesheet" href="/static/new_net_01/css/addnew.css"><link rel="stylesheet" href="/static/new_net_01/css/sidenav.css"><link rel="stylesheet" href="/static/new_net_01/css/style.css" /><link rel="stylesheet" href="/static/new_net_01/css/tab.css"><link rel="stylesheet" href="/static/new_net_01/css/404.css"> <meta name="baidu-site-verification" 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class="content"><p><span>需求數(shù)量：</span>0</p><p><span>價(jià)格要求：</span>面議</p><p><span>所在地：</span>廣東省</p><p><span>包裝要求：</span><span style="color: #f30;"></span></p><p><span>產(chǎn)品關(guān)鍵詞：</span>電源變壓器檢測結(jié)果,變壓器</p><p><span>***更新：</span>2021-01-02 07:09:16</p><p><span id="click" >瀏覽次數(shù)：0次</span></p><a rel="nofollow" class="button">聯(lián)系我們</a></div></div><div id="cijvqh7" class="rightbox"><h3>公司基本資料信息</h3><p style="border:0;"><a rel="nofollow">深圳市展榮新精密電子有限公司</a></p><p><span>聯(lián)系人：</span>喻孟峨</p><p><span>郵箱: </span>113527410@qq.com</p><p><span>電話: </span>15012892536</p><p><span>傳真: </span>0755_</p><p><span>網(wǎng)址: </span></p><p><span>手機(jī): </span>0755-27923475</p><p><span>地址: </span>航城街道黃田社區(qū)崗貝工業(yè)區(qū)綜合樓10棟401</p><p>[當(dāng)前離線] <a rel="nofollow"> [加為商友] </a><a rel="nofollow"> [發(fā)送信件] </a></p></div></div><div id="l34agxo" class="page-proshow02"><p class="title">詳細(xì)說明</p><div id="ceam8xz" class="box"><p><p style="text-indent:25px">通過短路阻抗和負(fù)載損耗的測量，可以驗(yàn)證這兩項(xiàng)指標(biāo)是否在國家標(biāo)準(zhǔn)及用戶要求范圍內(nèi)，同時還可以通過試驗(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，電源變壓器檢測結(jié)果。 1、短路阻抗及負(fù)載損耗的測量，應(yīng)當(dāng)在試品的一個繞組的線端施加額定頻率，且近似正弦的電流，另一個繞組短路，各相處于同一個分接位置。測量應(yīng)在50%～100.0%額定電流下進(jìn)行；為避免繞組發(fā)熱對試驗(yàn)結(jié)杲產(chǎn)生明顯誤差，試驗(yàn)測量應(yīng)迅速進(jìn)行；同時準(zhǔn)確記錄試驗(yàn)時繞組溫度。 2、短路阻抗及負(fù)載損耗的測量與空載試驗(yàn)的測量線路相同，只是測量中無需進(jìn)行電壓波形校正。 3、短路阻抗及負(fù)載損耗的測量接線；對于額定電流很小的試品，電源變壓器檢測結(jié)果，儀表（電壓表及瓦特表電壓線圈）和電壓互感器的吸收電流在測量電流中不可忽略時，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，電源變壓器檢測結(jié)果，一對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，測量時應(yīng)以三相電流的算術(shù)平均值為準(zhǔn)。盡量減少試驗(yàn)回路中的導(dǎo)線接觸電阻，運(yùn)行中的變壓器分接頭常受油膜等污物的影響使其接觸不良。電源變壓器檢測結(jié)果</p><div style="width:100%;text-align: center;"><img style="max-width: 640px; max-height: 320px;" alt="電源變壓器檢測結(jié)果,變壓器" src="https://tyunfile.71360.com/UploadFile/ZRX888/637284368500371094/6122012.png"></div><p style="text-indent:25px">對于Ⅰ類和Ⅱ類的單相變壓器，試驗(yàn)次數(shù)為三次；如無另行規(guī)定，帶有分接的變壓器的試驗(yàn)應(yīng)分別在zui大、額定和zui小分接位置上各進(jìn)行一次；三相變壓器試驗(yàn)次數(shù)為九次，在不同分接位置上進(jìn)行，即在旁柱的zui大分接、中柱的額定分接和另一旁柱的zui小分接位置上分別進(jìn)行三次。對于Ⅲ類變壓器，其試驗(yàn)程序和分接位置通常由制造單位和用戶協(xié)商確定，一般與Ⅰ類和Ⅱ類變壓器相同。每次試驗(yàn)除用示波器記錄電流波形外，還應(yīng)派專人監(jiān)視試品；每次試驗(yàn)過后，應(yīng)對電流波形、氣體繼電器進(jìn)行觀察，并測量該分接的電抗值。短路試驗(yàn)后應(yīng)重復(fù)全部例行試驗(yàn)，包括在100.0%規(guī)定試驗(yàn)電壓下的絕緣試驗(yàn)；如果規(guī)定了雷電沖擊試驗(yàn)，也應(yīng)在此階段中進(jìn)行；低對于Ⅰ類變壓器，除絕緣試驗(yàn)外的其他試驗(yàn)項(xiàng)目，可以不做。山東電子變壓器耐壓試驗(yàn)設(shè)備介電強(qiáng)度測試儀電源輸入端與機(jī)殼間應(yīng)能承受1500V、50Hz正弦波電壓。</p><div style="width:100%;text-align: center;"><img style="max-width: 640px; max-height: 320px;" alt="電源變壓器檢測結(jié)果,變壓器" src="https://tyunfile.71360.com/UploadFile/ZRX888/637284368711884766/5770221.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)被測變壓器的初級側(cè)XA、XB端與變壓比電橋的NA、NB端共同受電時，被測變壓器的次級側(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的示指等于被測變壓器變壓比的標(biāo)準(zhǔn)值、調(diào)節(jié)電橋誤差盤使檢流計(jì)G指零，就得到被測變壓比的誤差值。變壓器變比電橋通常由比值盤、誤差盤、相序開關(guān)、聯(lián)結(jié)組合開關(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、誤差盤、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">巧用變壓器：有些地區(qū)的電壓常低于220V；而有些地區(qū)的電壓則高于220V；那么用現(xiàn)有的雙繞組變壓器接成自耦變壓器來升高或降低電源電壓；即能使額定電壓為220V的用電器正常工作；如圖33所示。當(dāng)開關(guān)S打在“升壓”位置時；變壓器相當(dāng)于一個自耦變壓器；將電源電壓升高6．3V；如將開關(guān)S打在“正?！蔽恢脮r；負(fù)載是直接接到電源上；輸出電壓仍為電源電壓。圖中的黑圓點(diǎn)表示繞組的同名端。如果將初、次級的連接線改為同名端相連；則輸出電壓將降低6．3V。采用這種接法；負(fù)載電流不得大于初、次級的額定電流。網(wǎng)路電壓如經(jīng)常比220V低(或高)30~40V；可選220V/36V的變壓器連接?？蓽y量變壓器的空載電流、空載損耗、短路電壓、短路（負(fù)載）損耗。</p><div style="width:100%;text-align: center;"><img style="max-width: 640px; max-height: 320px;" alt="電源變壓器檢測結(jié)果,變壓器" src="https://tyunfile.71360.com/UploadFile/ZRX888/637284368672089844/7803755.png"></div><p style="text-indent:25px">繞制材料：要繞制一個變壓器我們必須對與變壓器有關(guān)的材料要有一定的認(rèn)識，為此這里我就介紹一下這方面的知識。1、鐵芯材料變壓器使用的鐵芯材料是鐵片中加入硅能降低鋼片的導(dǎo)電性，增加電阻率，它可減少渦流，使其損耗減少。我們通常稱為加了硅的鋼片為硅鋼片，變壓器的質(zhì)量所用的硅鋼片的質(zhì)量有很大的關(guān)系，硅鋼片的質(zhì)量通常用磁通密度B來表示，一般黑鐵片的B值為6000-8000、低硅片為9000-11000，高硅片為12000-16000。2、繞制變壓器通常用的材料漆包線，紗包線，絲包線紙包線，較常用的漆包線。對于導(dǎo)線的要求，是導(dǎo)電性能好，絕緣漆層有足夠耐熱性能，并且要有一定的耐腐蝕能力。一般情況下較好用QZ型號的較強(qiáng)度的聚脂漆包線。在檢查變壓器的時候需要注意對套管進(jìn)行定期檢查。珠海電子變壓器綜合測試器</p><p style="text-indent:25px">采用典型的四線制測量法，以提高測量電阻(尤其是低阻)的準(zhǔn)確度。電源變壓器檢測結(jié)果</p><p style="text-indent:25px">短路承受能力試驗(yàn)是投擬運(yùn)行中極為嚴(yán)酷的短路故障，即網(wǎng)絡(luò)容量足夠大、負(fù)載阻抗為零，而且在電壓過零時獲得zui人的非對稱電流。變壓器繞組、分接開關(guān)、套管、引線及各機(jī)械緊固部件將承受來自短路電流所產(chǎn)生的巨大的動穩(wěn)定效應(yīng)與熱效應(yīng)的考核。從而驗(yàn)證結(jié)構(gòu)的合理性與運(yùn)行的可靠性。變壓器承受熱穩(wěn)定的能力，通常按照產(chǎn)品在運(yùn)行溫度下發(fā)生短路，對稱短路電流產(chǎn)生的熱效應(yīng)全部用來提高繞組溫度；GB 1094.5規(guī)定變壓器承受熱穩(wěn)定能力可通過計(jì)算來驗(yàn)證。承受短路的動穩(wěn)定能力應(yīng)通過試驗(yàn)或計(jì)算和設(shè)計(jì)驗(yàn)證其結(jié)構(gòu)、工藝和制造的討靠性；試驗(yàn)通常在強(qiáng)電流試驗(yàn)站進(jìn)行；試驗(yàn)電源可以是網(wǎng)絡(luò)，也可以是沖擊發(fā)電機(jī)組，一般均需配置合適的短路試驗(yàn)變壓器和電抗器。電源變壓器檢測結(jié)果</p><p style="text-indent:25px">深圳市展榮新精密電子有限公司主要經(jīng)營范圍是儀器儀表，擁有一支專業(yè)技術(shù)團(tuán)隊(duì)和良好的市場口碑。展榮新精密電子致力于為客戶提供良好的變壓器電感平衡測試儀，變壓器綜合測試儀，高壓測試儀19053，展榮新（臺儀達(dá)）系列產(chǎn)品，一切以用戶需求為中心，深受廣大客戶的歡迎。公司秉持誠信為本的經(jīng)營理念，在儀器儀表深耕多年，以技術(shù)為先導(dǎo)，以自主產(chǎn)品為重點(diǎn)，發(fā)揮人才優(yōu)勢，打造儀器儀表良好品牌。展榮新精密電子秉承“客戶為尊、服務(wù)為榮、創(chuàng)意為先、技術(shù)為實(shí)”的經(jīng)營理念，全力打造公司的重點(diǎn)競爭力。</p></p><br /><p>文章來源地址: http://www.cdcfah.com/cp/2670462.html</p></div></div></div></div></div><div id="yawyuam" class="page-right twoColRt"><div id="f89pgxo" class="box01 margin10 clearfix"><h3><a href="http://www.cdcfah.com/cp/">猜你喜歡</a></h3><div id="lovw77u" class="recomPic likePro"><a href="http://www.cdcfah.com/cp/814588.html"><div><img 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