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class="vcenter" onerror="javascript:this.src='/static/new_net_01/images/nopic.jpg';"></p></div></div></div><div id="vlznbt3" 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>四川省</p><p><span>包裝要求：</span><span style="color: #f30;"></span></p><p><span>產(chǎn)品關(guān)鍵詞：</span>雅安愛(ài)克賽ups不間斷電源,ups不間斷電源</p><p><span>***更新：</span>2020-07-27 10:13:27</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="rl3n5nb" class="rightbox"><h3>公司基本資料信息</h3><p style="border:0;"><a rel="nofollow">成都駿為巨達(dá)科技有限公司</a></p><p><span>聯(lián)系人：</span>金鐘</p><p><span>郵箱: </span>1153683998@qq.com</p><p><span>電話: </span>13350099229</p><p><span>傳真: </span>0286_</p><p><span>網(wǎng)址: </span></p><p><span>手機(jī): </span>0286-61602525</p><p><span>地址: </span>成都市成華區(qū)羊子山路88號(hào)4棟2單元8樓16號(hào)</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="vxz3fd5" class="page-proshow02"><p class="title">詳細(xì)說(shuō)明</p><div id="dhz53nr" class="box"><p><p> 高低電壓保護(hù)作用 </p> <p> 當(dāng)市電電壓時(shí)高時(shí)低，UP電源內(nèi)的穩(wěn)壓器(AVR)使市電電壓保持在可使用的安全范圍，確保設(shè)備可以正常運(yùn)行。當(dāng)高低電壓超過(guò)可使用的范時(shí)，UPS電源系統(tǒng)則將啟動(dòng)蓄電池供電，保障設(shè)備的持續(xù)運(yùn)行。 </p> <p> 諧波失真保護(hù)作用 </p> <p> 電力經(jīng)由輸配電線路傳送至使用端時(shí)，電壓波形失真，基波電流發(fā)生變化產(chǎn)生諧波。諧波會(huì)影響設(shè)備的使用，通過(guò)UPS電源則能為設(shè)備提供穩(wěn)定***的電源，有效提高設(shè)備的運(yùn)行效率和壽命。 </p> <p> <span style="display:none;"></span>穩(wěn)定頻率作用 </p> <p> 頻率就是市電每一秒變動(dòng)的周期，雅安愛(ài)克賽ups不間斷電源，雅安愛(ài)克賽ups不間斷電源，50Hz就是每秒50周次。市電發(fā)電機(jī)運(yùn)轉(zhuǎn)時(shí)受到用戶端用電量的突然變化而造成轉(zhuǎn)速的變動(dòng)將使轉(zhuǎn)換出來(lái)的電力頻率不定，通過(guò)UPS電源轉(zhuǎn)換的電力可提供穩(wěn)定的頻率，確保儀器設(shè)備的正常工作，雅安愛(ài)克賽ups不間斷電源。<span style="display:none;"></span> 一般UPS逆變器輸出端并聯(lián)的電容器一方面起濾波作用，另一方面是抵消負(fù)載中的電感分量。雅安愛(ài)克賽ups不間斷電源</p><div style="width:100%;text-align: center;"><img style="max-width: 640px; max-height: 320px;" alt="雅安愛(ài)克賽ups不間斷電源,ups不間斷電源" src="https://tyunfile.71360.com/WaterMark/UploadFile/cdjwjd/637298998744462891/8621344.png"></div><p>一般3KVA以上的IT設(shè)備都選用在線式UPS，在IT設(shè)備場(chǎng)合無(wú)論如何是不能用EPS的。</p><p>工頻機(jī)和高頻機(jī)比較各有什么優(yōu)缺點(diǎn)？高頻機(jī)能否取代工頻機(jī)？</p><p>工頻機(jī)UPS：缺點(diǎn)是輸入功率因數(shù)低，功耗大，效率低，體積大，笨重，價(jià)格高，可靠性低；優(yōu)點(diǎn)是制造相對(duì)容易，尤其是采用手工作業(yè)影響也不大，要求一致性相對(duì)低一些。</p><p>高頻機(jī)UPS：優(yōu)點(diǎn)是輸入功率因數(shù)高，功耗小，效率高，體積小，輕便，可靠性高；但對(duì)生產(chǎn)手段要求高，要求一致性嚴(yán)格。</p><p>為什么UPS的容量用VA表示？這叫什么功率？</p><p>有功功率的單位是瓦特（W），無(wú)功功率的單位是乏（var）。一般UPS的容量都用視在功率表示，由于視在功率中既包含有功功率，也包含無(wú)功功率，既不能稱作W也不能稱var，既然是視在功率是伏特（V）與安培（A），就索性稱為VA。安順伊頓ups不間斷電源價(jià)格后備式UPS由于主要的對(duì)象是PC機(jī)之類的IT設(shè)備，所以容量很少有超過(guò)3KVA的。</p><div style="width:100%;text-align: center;"><img style="max-width: 640px; max-height: 320px;" alt="雅安愛(ài)克賽ups不間斷電源,ups不間斷電源" src="https://tyunfile.71360.com/WaterMark/UploadFile/cdjwjd/637298998820625000/3123899.png"></div><p> 什么叫有功功率，什么叫無(wú)功功率？ </p> <p> 有功功率指的是能使負(fù)載做功的功率，比如使燈泡發(fā)光，使電路工作等等。做功后又完全變成熱量散發(fā)到大氣中，一去不復(fù)返。 </p> <p> 無(wú)功功率指的是儲(chǔ)存在儲(chǔ)能裝置（器件）中的功率，它可以轉(zhuǎn)化為有功功率。 </p> <p> UPS效率的定義是什么？它表示什么？和功率因數(shù)是一回事嗎？ </p> <p> UPS效率的η的定義是：輸出有功功率P與輸入有功功率P’之比的百分?jǐn)?shù)，即：η=（P/P’）％。它是衡量UPS功耗大小的標(biāo)志。和功率因數(shù)不是一碼事。 </p><p style="text-indent:25px"><p>整流器：<p>有兩個(gè)主要功能：<p>將交流電（AC）變成直流電（DC），經(jīng)濾波后供給逆變器；<p>給蓄電池提供充電電壓，起到一個(gè)充電器的作用；<p>逆變器：<p>將直流電（DC）轉(zhuǎn)化為交流電（AC），供給負(fù)載使用；<p>蓄電池：<p>UPS用來(lái)作為儲(chǔ)存電能的裝置，使其在市電失電時(shí)，可以將直流電逆變后，為負(fù)載提供不間斷電源。其容量大小決定了其維持放電（供電）的時(shí)間；<p>靜態(tài)開(kāi)關(guān)：<p>又稱靜止開(kāi)關(guān)，是用兩個(gè)可控硅（SCR）反向并聯(lián)組成的一種交流開(kāi)關(guān)，其閉合和斷開(kāi)由邏輯控制器控制；<p>隔離變壓器、穩(wěn)壓器：<p>在輸入或輸出部分將交流與直流隔離，穩(wěn)壓器除了隔離之外還有穩(wěn)定電壓的作用；UPS中文為“不間斷電源”。是一種含儲(chǔ)能裝置，以整流器、逆變器為主要組成部分。</p><div style="width:100%;text-align: center;"><img style="max-width: 640px; max-height: 320px;" alt="雅安愛(ài)克賽ups不間斷電源,ups不間斷電源" src="https://tyunfile.71360.com/WaterMark/UploadFile/cdjwjd/637298998891835937/6912443.png"></div><p> 在線互動(dòng)式UPS電源在變壓器抽頭切換的過(guò)程中，雙向變換器作為逆變器方式工作。蓄電池供電，因此能實(shí)現(xiàn)輸出電壓的不間斷，同樣在由市電供電到電池供電的切換過(guò)程中也能做到?jīng)]有轉(zhuǎn)換時(shí)間。在線互動(dòng)式UPS電源的電路實(shí)現(xiàn)簡(jiǎn)單，沒(méi)有單獨(dú)的充電器，帶來(lái)的是生產(chǎn)成本的降低和可靠性的提高。 </p> <p> 這類產(chǎn)品在市電供電工作時(shí)也不存在AC／DC、DC／AC的轉(zhuǎn)換，使整機(jī)效率有所提高。在線互動(dòng)式UPS很好地結(jié)合了后備式UPS和在線式UPS的許多優(yōu)點(diǎn)，是一種很不錯(cuò)的變換形式。但是由于它使用的是工頻變壓器，同樣有笨重、體積大的問(wèn)題。 UPS的各項(xiàng)參數(shù)設(shè)置信息應(yīng)全方面記錄、妥善歸檔保存并及時(shí)更新。重慶艾默生ups不間斷電源公司</p><p style="text-indent:25px">變電站內(nèi)UPS系統(tǒng)一般由電力UPS主機(jī)、旁路穩(wěn)壓柜、輸出饋線柜等三部分組成（小功率時(shí)也可三合一）。雅安愛(ài)克賽ups不間斷電源</p><p style="text-indent:25px"><p>UPS同時(shí)具備穩(wěn)壓、濾波等功能，有些UPS可以在故障或過(guò)載時(shí)改由市電旁路供電。<p>后備式的電壓輸出有較大的波動(dòng)，在170V-260V之間，采用高速繼電器實(shí)現(xiàn)市電和蓄電池之間的轉(zhuǎn)換，轉(zhuǎn)換時(shí)間小于10毫秒。在線式始終使用逆變電路工作，其電壓的穩(wěn)定性高，基本上在220V±5%范圍內(nèi)，對(duì)蓄電池基本不存在轉(zhuǎn)換時(shí)間；與市電旁路轉(zhuǎn)換采用靜態(tài)開(kāi)關(guān)，轉(zhuǎn)換時(shí)間可以達(dá)到微秒級(jí)。<p>UPS輸出精度高、轉(zhuǎn)換時(shí)間快，同時(shí)造價(jià)較高（約為EPS的兩倍），平時(shí)能耗大（在線式），主機(jī)壽命較短（8-10年）。雅安愛(ài)克賽ups不間斷電源</p><p style="text-indent:25px">成都駿為巨達(dá)科技有限公司一直專注于建立全方面***、高科技、完善的客戶服務(wù)體系是公司為客戶服務(wù)的根本。公司理念“求實(shí)、進(jìn)取”，遵奉“用戶至上、追求超越、質(zhì)量服務(wù)、”的宗旨。為用戶提供高質(zhì)量的方案，質(zhì)量的服務(wù)。為保障客戶高可靠性電力環(huán)境及機(jī)房環(huán)境而努力！，是一家機(jī)械及行業(yè)設(shè)備的企業(yè)，擁有自己**的技術(shù)體系。公司目前擁有高技術(shù)人才11~50人人，以不斷增強(qiáng)企業(yè)核心競(jìng)爭(zhēng)力，加快企業(yè)技術(shù)創(chuàng)新，實(shí)現(xiàn)穩(wěn)健生產(chǎn)經(jīng)營(yíng)。公司業(yè)務(wù)范圍主要包括：[ "電池系列", "UPS產(chǎn)品", "機(jī)房精密空調(diào)", "" ]等。公司奉行顧客至上、質(zhì)量為首、的經(jīng)營(yíng)宗旨，深受客戶好評(píng)。公司力求給客戶提供***質(zhì)量服務(wù)，我們相信誠(chéng)實(shí)正直、開(kāi)拓進(jìn)取地為公司發(fā)展做正確的事情，將為公司和個(gè)人帶來(lái)共同的利益和進(jìn)步。經(jīng)過(guò)幾年的發(fā)展，已成為[ "電池系列", "UPS產(chǎn)品", "機(jī)房精密空調(diào)", "" ]行業(yè)**企業(yè)。</p></p><br /><p>文章來(lái)源地址: http://www.cdcfah.com/cp/717096.html</p></div></div></div></div></div><div id="b575lnr" class="page-right twoColRt"><div id="xdrfvnf" class="box01 margin10 clearfix"><h3><a href="http://www.cdcfah.com/cp/">猜你喜歡</a></h3><div id="dfvx5hx" class="recomPic likePro"><a href="http://www.cdcfah.com/cp/814588.html"><div><img src="http://tyunfile.71360.com/UpLoadFile/2019/11/1/14/637082168864691056_lgpj_5374157.jpg" alt="福建ZF配件哪家強(qiáng) 信息推薦自業(yè)物資供應(yīng)" class="vcenter" onerror="javascript:this.src='/static/new_net_01/images/nopic.jpg';"></div><p>福建ZF配件哪家強(qiáng) 信息推薦自業(yè)物資供應(yīng)</p></a></div><div id="3lbprjl" class="recomPic likePro"><a href="http://www.cdcfah.com/cp/846569.html"><div><img 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