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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>江蘇實(shí)驗(yàn)用變壓器選擇,變壓器</p><p><span>***更新：</span>2020-10-22 14:24:12</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="feq3qnc" 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="hroqiug" class="page-proshow02"><p class="title">詳細(xì)說明</p><div id="n7nprya" class="box"><p><p> LearnEngineering制作的動畫，視頻中我們可以很直觀的學(xué)習(xí)變壓器的工作原理，變壓器是利用電磁感應(yīng)的原理來改變交流電壓的裝置，主要構(gòu)件是初級線圈、次級線圈和鐵芯（磁芯）。主要功能有：電壓變換、電流變換、阻抗變換、隔離、穩(wěn)壓（磁飽和變壓器）等。變壓器由鐵芯（或磁芯）和線圈組成，線圈有兩個或兩個以上的繞組，其中接電源的繞組叫初級線圈，其余的繞組叫次級線圈，江蘇實(shí)驗(yàn)用變壓器選擇。首先選擇變壓器的額定電壓。高壓側(cè)電壓與所接入電網(wǎng)電壓相等，低壓側(cè)電壓比低壓側(cè)電網(wǎng)的電壓高10%或5%（取決變壓器電壓等級和阻抗電壓大?。?；額定容量選擇。計(jì)算變壓器所帶負(fù)荷的大?。ㄒ蠼y(tǒng)計(jì)比較大綜合負(fù)荷，將有功負(fù)荷kW值換算成視在功率kVA），如果是兩臺變壓器，江蘇實(shí)驗(yàn)用變壓器選擇，那么每臺變壓器的容量可按照比較大綜合負(fù)荷的70%選擇，一臺變壓器要按總負(fù)荷考慮，并留有適當(dāng)?shù)脑６取Ｆ渌餍菂?shù)可結(jié)合變壓器產(chǎn)品適當(dāng)考慮。例如：選擇35/10kV變壓器。假定比較大負(fù)荷為3500kW，功率因數(shù)為，選兩臺變壓器，容量S=×3500/，可選擇3150kVA的變壓器，電壓比為35kV/。再從產(chǎn)品目錄中選擇型號，江蘇實(shí)驗(yàn)用變壓器選擇。對于特高電壓等級的輸變電設(shè)備，沖擊耐壓試驗(yàn)是非常重要的例行試驗(yàn)。江蘇實(shí)驗(yàn)用變壓器選擇</p><div style="width:100%;text-align: center;"><img style="max-width: 640px; max-height: 320px;" alt="江蘇實(shí)驗(yàn)用變壓器選擇,變壓器" src="https://tyunfile.71360.com/UploadFile/ZRX888/637284368292333984/8679976.png"></div><p style="text-indent:25px">對于三角形聯(lián)結(jié)的繞組進(jìn)行三相試驗(yàn)時，如果低壓側(cè)為星形聯(lián)結(jié)，可采用測量低壓電流的方法；對于三角形聯(lián)結(jié)的繞組進(jìn)行單相試驗(yàn)時，單相電壓應(yīng)施加在三角形的兩個角上，試驗(yàn)時的電壓應(yīng)與三相試驗(yàn)時的相間電壓相同；對于星形聯(lián)結(jié)繞組，如果電源容量不足以進(jìn)行上述單相試驗(yàn)，而中性點(diǎn)可以利用且能承受相關(guān)的電流時，經(jīng)協(xié)商單相電源可施加于線端與中性點(diǎn)之間。短路試驗(yàn)可以采用預(yù)先短路、選相合閘，也可以采用預(yù)先送電、選相短路的方法。對于單同心式繞組的變壓器采用預(yù)先短路時，為了避免zui初幾個周波中由于鐵心飽和產(chǎn)生的勵磁電流疊加在短路電流上，施加電壓的繞組應(yīng)該選距鐵心較遠(yuǎn)的那個繞組。對于雙同心式繞組（高/低/高）和交疊式繞組的變壓器采用預(yù)先短路的方法試驗(yàn)時，制造單位需與用戶協(xié)商。深圳變壓器感應(yīng)耐壓測試日常在使用變壓器的時候要注意使用規(guī)范。</p><div style="width:100%;text-align: center;"><img style="max-width: 640px; max-height: 320px;" alt="江蘇實(shí)驗(yàn)用變壓器選擇,變壓器" src="https://tyunfile.71360.com/UploadFile/ZRX888/637284368770742188/2167683.png"></div><p style="text-indent:25px">在進(jìn)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(shí)值差甚遠(yuǎn)，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(dá)到幾乎不在變化,得到真實(shí)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(shí)值。出現(xiàn)忽大忽小,長時間飄忽不定,或很長時間數(shù)據(jù)保持不變或變化甚小且距真實(shí)值相差甚遠(yuǎn)則應(yīng)檢查接線是否有誤。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(shí)值區(qū)然后回升到真實(shí)值。</p><p style="text-indent:25px">高壓變壓器容量測試儀一體機(jī)包含中國四大基本功能，相當(dāng)于4種設(shè)備：有源變壓器容量測試儀、變壓器損耗模型參數(shù)測試儀、諧波分析儀、示波器。高壓變壓器容量測試儀可對企業(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)行一個精密的測量，并能根據(jù)測量空負(fù)載試驗(yàn)時的電壓、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)矢量問題分析。主要發(fā)展特點(diǎn)有：體積小、重量輕、測量結(jié)果準(zhǔn)確度高、穩(wěn)定性好、操作更加簡便易學(xué)等優(yōu)點(diǎn)，完全無法取代我們以往學(xué)生利用多表法測量變壓器損耗和容量的方法，接線方式簡單，測試、記錄管理方便，大幅增加提高了社會工作環(huán)境效率。一般在住宅樓中大家可能覺得變壓器好像不是很常見，但其實(shí)它可能都是隱藏在電箱背后的，只不過大家看不見。</p><div style="width:100%;text-align: center;"><img style="max-width: 640px; max-height: 320px;" alt="江蘇實(shí)驗(yàn)用變壓器選擇,變壓器" src="https://tyunfile.71360.com/UploadFile/ZRX888/637284368205908203/8826371.png"></div><p style="text-indent:25px">當(dāng)變壓器的初級繞組通電后，線圈所產(chǎn)生的磁通在鐵心流動，因?yàn)殍F心本身也是導(dǎo)體，在垂直于磁力線的平面上就會感應(yīng)電勢，這個電勢在鐵心的斷面上形成閉合回路并產(chǎn)生電流，好象一個旋渦所以稱為“渦流”。這個“渦流”使變壓器的損耗增加，并且使變壓器的鐵心發(fā)熱變壓器的溫升增加。由“渦流”所產(chǎn)生的損耗我們稱為“鐵損”。另外要繞制變壓器需要用大量的銅線，這些銅導(dǎo)線存在著電阻，電流流過時這電阻會消耗一定的功率，這部分損耗往往變成熱量而消耗，我們稱這種損耗為“銅損”。所以變壓器的溫升主要由鐵損和銅損產(chǎn)生的。變壓器耐壓試驗(yàn)控制臺是由接觸式調(diào)壓器及其控制、保護(hù)、測量、信號電路組成。河南電子變壓器檢測設(shè)備</p><p style="text-indent:25px">變壓器的檢測中涉及到很多專業(yè)的項(xiàng)目以及參數(shù)，這個時候一定要尋求專業(yè)人士進(jìn)行解答。江蘇實(shí)驗(yàn)用變壓器選擇</p><p> 變壓器是應(yīng)用，常見的電力設(shè)備之一。我們都知道變壓器是一種能將某一種電壓、電流、相數(shù)的交流電能轉(zhuǎn)變成另一種電壓、電流、相數(shù)的交流電能的電器。在生產(chǎn)和生活中，經(jīng)常會用到各種高低不同的電壓，比如工廠中常用的三相異步電動機(jī)的額定電壓是380V或220V；照明電路中要用220V；機(jī)床照明、行燈等只需要36V、24V，甚至更低的電壓。這就需要使用變壓器把同一交流電壓變換成頻率相同的不同等級的電壓，來滿足不同的使用要求。變壓器不僅能用于改變電壓，還可以用來改變電流（如變流器、大電流發(fā)生器等）、改變相位（如改變線圈的連接方法來改變變壓器的極性或組別）、變換阻抗（電子線路中的輸入、輸出變壓器）等。單相變壓器工作原理變壓器的基本工作原理是電磁感應(yīng)原理。上圖所示為一個簡單的單相變壓器，其基本結(jié)構(gòu)是在閉合的鐵芯上繞有兩個匝數(shù)不等的繞組（又稱線圈），繞組之間、鐵芯和繞組之間均相互絕緣，鐵芯由硅鋼片疊成?，F(xiàn)將匝數(shù)為W1的繞組與電源相連，稱該繞組為原繞組或初級繞組，匝數(shù)為W2的繞組通過開關(guān)K與負(fù)載相連，稱為副繞組或次級繞組。當(dāng)接通電源，把交流電壓U1加到原繞組上后，交流電流l1流入該繞組，然后產(chǎn)生勵磁作用。江蘇實(shí)驗(yàn)用變壓器選擇</p><p style="text-indent:25px">深圳市展榮新精密電子有限公司是一家一般經(jīng)營項(xiàng)目是：經(jīng)營電子商務(wù)，國內(nèi)貿(mào)易，經(jīng)營進(jìn)出口業(yè)務(wù)（以上法律、行政法規(guī)決定規(guī)定在登記前須經(jīng)批準(zhǔn)的項(xiàng)目除外，限制的項(xiàng)目須取得許可后方可經(jīng)營）。許可經(jīng)營項(xiàng)目是：變壓器檢測儀表的開發(fā)及生產(chǎn)、變壓器綜合測試儀的開發(fā)及生產(chǎn)、線材測試儀的開發(fā)及生產(chǎn)、儀器儀表的開發(fā)及生產(chǎn)、銷售。的公司，是一家集研發(fā)、設(shè)計(jì)、生產(chǎn)和銷售為一體的專業(yè)化公司。展榮新精密電子擁有一支經(jīng)驗(yàn)豐富、技術(shù)創(chuàng)新的專業(yè)研發(fā)團(tuán)隊(duì)，以高度的專注和執(zhí)著為客戶提供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。展榮新精密電子繼續(xù)堅(jiān)定不移地走高質(zhì)量發(fā)展道路，既要實(shí)現(xiàn)基本面穩(wěn)定增長，又要聚焦關(guān)鍵領(lǐng)域，實(shí)現(xiàn)轉(zhuǎn)型再突破。展榮新精密電子創(chuàng)始人喻孟峨，始終關(guān)注客戶，創(chuàng)新科技，竭誠為客戶提供良好的服務(wù)。</p></p><br /><p>文章來源地址: http://www.cdcfah.com/cp/1662696.html</p></div></div></div></div></div><div id="pubtf2x" class="page-right twoColRt"><div id="ot7b8mz" class="box01 margin10 clearfix"><h3><a href="http://www.cdcfah.com/cp/">猜你喜歡</a></h3><div id="b3wovce" class="recomPic likePro"><a 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