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onerror="javascript:this.src='/static/new_net_01/images/nopic.jpg';"></p></div></div><div id="7p2lv8e" class="smallimg"><div><p class="pic"><img src="https://tyunfile.71360.com/UploadFile/ZRX888/637284368205908203/8826371.png" class="vcenter" onerror="javascript:this.src='/static/new_net_01/images/nopic.jpg';"></p></div></div></div><div id="zdsur8g" class="content"><p><span>需求數(shù)量：</span>0</p><p><span>價格要求：</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>電子變壓器測試臺,變壓器</p><p><span>***更新：</span>2021-02-03 12:11:42</p><p><span id="click" >瀏覽次數(shù)：2次</span></p><a rel="nofollow" class="button">聯(lián)系我們</a></div></div><div id="2rqcp7x" 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: </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="y2og2ct" class="page-proshow02"><p class="title">詳細說明</p><div id="3gnfugn" class="box"><p><p style="text-indent:25px">在進行大型變壓器低壓側(cè)直阻測量時,***個顯示出的數(shù)據(jù)與真實值差甚遠，且保持一段時間的穩(wěn)定,然后逐漸開始變化,變大或變化，變化的速度逐漸加快，然后逐漸變慢zui后達到幾乎不在變化,得到真實阻值。這種變化一般是朝一個方向變化，比如一直變小到真實值。出現(xiàn)忽大忽小，電子變壓器測試臺,長時間飄忽不定，電子變壓器測試臺,或很長時間數(shù)據(jù)保持不變或變化甚小且距真實值相差甚遠則應(yīng)檢查接線是否有誤，電子變壓器測試臺。但對于超大型變壓器如370MVA或400MVA變壓器在助磁測量時有一個過沖，在變小過程中有一個低于真實值區(qū)然后回升到真實值。繞組變形測試應(yīng)在解開變壓器所有引線的前提下進行。電子變壓器測試臺</p><div style="width:100%;text-align: center;"><img style="max-width: 640px; max-height: 320px;" alt="電子變壓器測試臺,變壓器" src="https://tyunfile.71360.com/UploadFile/ZRX888/637284368205908203/8826371.png"></div><p style="text-indent:25px">變壓器直流電阻測試儀的測量方法：測量直流電阻是變壓器試驗中的一個重要項目。通過測量，可以檢查出設(shè)備的導電回路有無接觸不良、焊接不良、線圈故障及接線錯誤等缺陷。在中、小型變壓器的實際測量中，大多采用直流電橋法，當被試線圈的電阻值在1歐以上的一般用單臂電橋測量，1歐以下的則用雙臂電橋測量。在使用雙臂電橋接線時，電橋的電位樁頭要靠近被測電阻，電流樁頭要接在電位樁頭的上面。測量前，應(yīng)先估計被測線圈的電阻值，將電橋倍率選鈕置于適當位置，將非被測線圈短路并接地，然后打開電源開關(guān)充電，待充足電后按下檢流計開關(guān)，迅速調(diào)節(jié)測量臂，使檢流計指針向檢流計刻度中間的零位線方向移動，進行微調(diào)，待指針平穩(wěn)停在零位上時記錄電阻值，此時，被測線圈電阻值＝倍率數(shù)×測量臂電阻值。測量完畢，先開放檢流計按鈕，再放開電源開關(guān)。山東高壓變壓器檢測及時消除故障和補充油，確保油位保持在油標1/4-3/4處對于變壓器保持穩(wěn)定是非常有必要的。</p><div style="width:100%;text-align: center;"><img style="max-width: 640px; max-height: 320px;" alt="電子變壓器測試臺,變壓器" src="https://tyunfile.71360.com/UploadFile/ZRX888/637284368225537109/2074462.png"></div><p style="text-indent:25px">現(xiàn)場操作要點：1.測試時必須正確記錄分接開關(guān)的位置。應(yīng)盡可能將被測試變壓器的分接開關(guān)放置在第1分接，特別對有載調(diào)壓變壓器，以獲取較較全的繞組信息。對無載調(diào)壓變壓器，應(yīng)保證每次測量在同一. 分接位置，便于比較。2.繞組變形測試應(yīng)在解開變壓器所有引線的前提下進行，并使這些引線盡可能地遠離變壓器套管(周圍接地體和金屬懸浮物需離開變壓器套管20cm以上)，尤其是與封閉母線連接的變壓器。3.測試儀的接地沒有連接正確前，不要開始繞組變形測試。4.繞組變形測試應(yīng)放在直流類試驗之前或交流類試驗之后。5.試驗中如變壓器三相頻響特性不一致，應(yīng)檢查設(shè)備后測試，直至同一相兩次試驗結(jié)果-致。</p><p style="text-indent:25px">鑒于環(huán)氧樹脂澆注干式配電變壓器還存在下列一些問題：(1)設(shè)計的自由度不大，每個繞組都要用模具才能撓注。(2)一旦在高溫中燃燒會產(chǎn)生大量煙霧。(3)由于環(huán)氧樹脂與導線的熱膨脹系數(shù)不盡相同，如果緩沖層設(shè)置不當，易在冷熱溫度沖擊下，澆注層開裂，局部放電量增加，部分企業(yè)的個別產(chǎn)品已有此類質(zhì)量問題在運行中暴露。(4)環(huán)保問題，一旦這種環(huán)氧樹脂澆注型干式配電變壓器預期壽命已到，或因各種故障而使變壓器繞組損壞，要銷毀澆注成型的繞組是困難的，尚無法使環(huán)氧樹脂降解。從環(huán)保角度上講，這將是日益嚴重的問題。(5)環(huán)氧樹脂澆注型干式配電變壓器多數(shù)屬于F級耐溫等級，個別企業(yè)能生產(chǎn)H級耐溫等級的澆注型干式配電變壓器。鑒于上述原因，已有部分企業(yè)在發(fā)展敞開通風干式H級配電變壓器。介電強度測試儀電源輸入端與機殼間應(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="電子變壓器測試臺,變壓器" src="https://tyunfile.71360.com/UploadFile/ZRX888/637284368063710938/7461720.png"></div><p style="text-indent:25px">儀器特點：1、可測量各種類型的變壓器的空載電流、空載損耗、阻抗電壓、負載損耗、零序阻抗。 2、可自動進行波形畸變校正，溫度校正（提供簡單的溫度校正和附加損耗分別校正兩種方式），電壓校正（非額定電壓下的空載試驗），電流校正（非額定電流條件下的短路試驗），非常適合沒有做稍大容量變壓器短路試驗條件的單位。 3、可測量三相電壓、三相電流、平均電壓、平均電流、兩相有功功率（因采用兩功率表法，在此只顯示 A、C 兩相的功率）、總功率。4、可測量各相電壓和電流的 2－42 次諧波的含量以及各個信號的總畸變率（諧波失真度）。變壓器大家可能認為在公眾場合用的比較多，但其實在住宅小區(qū)中也有變壓器的存在。電子變壓器檢測中心</p><p style="text-indent:25px">加強日常維護和定期測試能夠延長變壓器的使用壽命。電子變壓器測試臺</p><p style="text-indent:25px">變壓器測試儀：專門用來測量變壓器容量的儀器，同時也可測量變壓器的特性參數(shù)。變壓器容量（特性）現(xiàn)場測試儀是一種非常適合現(xiàn)場準確測量變壓器容量和型式的多功能儀表，可在現(xiàn)場使用儀器內(nèi)置電源準確測量油侵式、干式、特種變壓器等各種類型變壓器的容量、型式和負載損耗，使用時可任意輸入變壓器一、二次電壓值，30KVA以上的變壓器均能實現(xiàn)空載損耗、負載損耗等各種特性參數(shù)。儀器體積小、重量輕至2.5kg,接線簡單、操作方便、測量準確、穩(wěn)定性好。電子變壓器測試臺</p></p><br /><p>文章來源地址: http://www.cdcfah.com/cp/3143985.html</p></div></div></div></div></div><div id="edn87wt" class="page-right twoColRt"><div id="wlfmoax" class="box01 margin10 clearfix"><h3><a href="http://www.cdcfah.com/cp/">猜你喜歡</a></h3><div id="8xzw3if" class="recomPic likePro"><a href="http://www.cdcfah.com/cp/814588.html"><div><img 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