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src="https://tyunfile.71360.com/WaterMark/UploadFile/cdjwjd/637298998956416016/8684488.png" class="vcenter" onerror="javascript:this.src='/static/new_net_01/images/nopic.jpg';"></p></div></div><div id="u7qgipr" class="smallimg"><div><p class="pic"><img src="https://tyunfile.71360.com/WaterMark/UploadFile/cdjwjd/637298998956416016/8684488.png" class="vcenter" onerror="javascript:this.src='/static/new_net_01/images/nopic.jpg';"></p></div></div></div><div id="nx7biub" 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>宜賓科華ups不間斷電源維修,ups不間斷電源</p><p><span>***更新：</span>2020-12-09 05:09:13</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="mw7xpwt" 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="3lnurov" class="page-proshow02"><p class="title">詳細(xì)說明</p><div id="dif8zo3" class="box"><p><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，宜賓科華ups不間斷電源維修，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，宜賓科華ups不間斷電源維修，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），宜賓科華ups不間斷電源維修，就索性稱為VA。UPS系統(tǒng)主要有有三種類型：后備式、互動(dòng)式、在線式。宜賓科華ups不間斷電源維修</p><div style="width:100%;text-align: center;"><img style="max-width: 640px; max-height: 320px;" alt="宜賓科華ups不間斷電源維修,ups不間斷電源" src="https://tyunfile.71360.com/WaterMark/UploadFile/cdjwjd/637298998956416016/8684488.png"></div><p> 對(duì)于UPS電源長(zhǎng)期處于市電低電壓供電或頻繁停電的用戶來說，為防止電池因長(zhǎng)期充電不足而過早損壞，應(yīng)充分利用供電高峰(如深夜時(shí)間)對(duì)電池充電以保證電池在每次放電之后有足夠的充電時(shí)間。一般電池被深度放電后，再充電至額定容量的90%至少需要10～12h左右。注意充電器的選用。 </p> <p> UPS電源用的免維護(hù)密封電池不能用可控硅式的“快速充電器”進(jìn)行充電。這是因?yàn)檫@種充電器會(huì)造成蓄電池同時(shí)處于既“瞬時(shí)過流充電”又“瞬時(shí)過壓充電的惡劣充電狀態(tài)。這種狀態(tài)會(huì)使電池可供使用容量大力下降，嚴(yán)重時(shí)會(huì)使蓄電池報(bào)廢。在采用恒壓截止型充電回路的UPS電源時(shí)，注意不要將電池電壓過低保護(hù)工作點(diǎn)調(diào)得過低，否則，在它充電初期容易產(chǎn)生過流充電。當(dāng)然，比較好選用既具有恒流，又有恒壓的充電器對(duì)其進(jìn)行充電。宜賓科華ups不間斷電源維修性能越好，保護(hù)能力也越強(qiáng)，總的來說，離線式UPS對(duì)負(fù)載的保護(hù)很差，在線互動(dòng)式略優(yōu)之。</p><div style="width:100%;text-align: center;"><img style="max-width: 640px; max-height: 320px;" alt="宜賓科華ups不間斷電源維修,ups不間斷電源" src="https://tyunfile.71360.com/WaterMark/UploadFile/cdjwjd/637298998719179687/4955661.png"></div><p> UPS作為保護(hù)性的電源設(shè)備，它的性能參數(shù)具有重要意義，應(yīng)是我們選購(gòu)時(shí)的考慮重點(diǎn)。市電電壓輸入范圍寬，則表明對(duì)市電的利用能力強(qiáng)（減少電池放電）。輸出電壓、頻率范圍小，則表明對(duì)市電調(diào)整能力強(qiáng)，輸出穩(wěn)定。波形畸變率用以衡量輸出電壓波形的穩(wěn)定性,而電壓穩(wěn)定度則說明當(dāng)UPS突然由零負(fù)載加到滿負(fù)載時(shí)，輸出電壓的穩(wěn)定性。 </p> <p> 還有UPS效率、功率因數(shù)、轉(zhuǎn)換時(shí)間等都是表征UPS性能的重要參數(shù)，決定了對(duì)負(fù)載的保護(hù)能力和對(duì)市電的利用率。性能越好，保護(hù)能力也越強(qiáng)，總的來說，離線式UPS對(duì)負(fù)載的保護(hù)很差，在線互動(dòng)式略優(yōu)之，在線式則幾乎可以解決所有的常見電力問題。當(dāng)然成本也隨著性能的增強(qiáng)而上升。因此用戶在選購(gòu)UPS時(shí)，應(yīng)根據(jù)負(fù)載對(duì)電力的要求程度及負(fù)載的重要性不同,而選取不同類型的UPS。 </p><p> 在線互動(dòng)式UPS電源也被稱為3端口式UPS電源，使用的是工頻變壓器。從能量傳遞的角度來考慮，其變壓器存在3個(gè)能量流動(dòng)的端口：端口1連接市電輸入；端口2通過雙向變換器與蓄電池相連；端口3輸出。 </p> <p> 市電供電時(shí)，交流電經(jīng)端口1流入變壓器，在穩(wěn)壓電路的控制下選擇合適的變壓器抽頭接入，同時(shí)在端口2的雙向變換器的作用下借助蓄電池的能量轉(zhuǎn)換共同調(diào)節(jié)端口3上的輸出電壓，以此來達(dá)到比較好的穩(wěn)壓效果；市電掉電時(shí)，蓄電池通過雙向變換器經(jīng)端口2給變壓器供電，維持端口3上的交流輸出。 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="宜賓科華ups不間斷電源維修,ups不間斷電源" src="https://tyunfile.71360.com/WaterMark/UploadFile/cdjwjd/637298998796386719/8451995.png"></div><p> 在線互動(dòng)式UPS電源在變壓器抽頭切換的過程中，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，沒有單獨(dú)的充電器，帶來的是生產(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、體積大的問題。提高UPS系統(tǒng)的可靠性，同時(shí)降低其損耗，就成為數(shù)據(jù)中心UPS系統(tǒng)架構(gòu)演變的主旋律。宜賓科華ups不間斷電源維修</p><p style="text-indent:25px">UPS在機(jī)房工程中重要設(shè)備，它能保證正常市電中斷后為弱電系統(tǒng)提供有效的電力保障。宜賓科華ups不間斷電源維修</p><p> UPS輸入輸出柜是針對(duì)UPS電源特性為UPS電源量身打造的配套產(chǎn)品，主要有UPS電源輸入（含雙電輸入）、UPS負(fù)載的輸出，UPS電源防雷、UPS手動(dòng)旁路、輸入輸出檢測(cè)儀表、分輸出指示燈可以根據(jù)用戶要求配置不同的功能。有效而直觀地反映UPS的工作狀態(tài)。 </p> <p> UPS輸入輸出配電柜是電力機(jī)房中心使用的，有功能完善，結(jié)構(gòu)緊湊，穩(wěn)定可靠等特點(diǎn)，UPS實(shí)際上就是不間斷電源，UPS輸入輸出柜是針對(duì)UPS不間斷電源特性量身打造的設(shè)備。它能夠控制配電單元，機(jī)架式配電單元以及中心配電，能夠方便管理。宜賓科華ups不間斷電源維修</p><p style="text-indent:25px">成都駿為巨達(dá)科技有限公司主要經(jīng)營(yíng)范圍是機(jī)械及行業(yè)設(shè)備，擁有一支專業(yè)技術(shù)團(tuán)隊(duì)和良好的市場(chǎng)口碑。公司自成立以來，以質(zhì)量為發(fā)展，讓匠心彌散在每個(gè)細(xì)節(jié)，公司旗下電池系列，UPS產(chǎn)品，機(jī)房精密空調(diào)深受客戶的喜愛。公司注重以質(zhì)量為中心，以服務(wù)為理念，秉持誠(chéng)信為本的理念，打造機(jī)械及行業(yè)設(shè)備良好品牌。在社會(huì)各界的鼎力支持下，持續(xù)創(chuàng)新，不斷鑄造***服務(wù)體驗(yàn)，為客戶成功提供堅(jiān)實(shí)有力的支持。</p></p><br /><p>文章來源地址: http://www.cdcfah.com/cp/2327406.html</p></div></div></div></div></div><div id="33wy8jc" class="page-right twoColRt"><div id="eolifhw" class="box01 margin10 clearfix"><h3><a href="http://www.cdcfah.com/cp/">猜你喜歡</a></h3><div id="8e7zbdf" 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" 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