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clearfix"><section class="container clearfix tcPro"><section class="home-main container clearfix"><div id="8b3ihoq" class="twoCol"><div id="anpwnzw" class="page-proshow clearfix"><p class="current"> 當(dāng)前位置:<a href="http://www.cdcfah.com/">首頁(yè)?<a href="http://www.cdcfah.com/cp/">產(chǎn)品供應(yīng)</a>?<a href="http://www.cdcfah.com/cp/first-_dgdq/">電工電氣</a>?<a href="http://www.cdcfah.com/cp/second-dgdq_dianyuan/">電源</a>?<a href="http://www.cdcfah.com/cp/third-dianyuan_wydy/">穩(wěn)壓電源</a>?云南直流電源串聯(lián) 歡迎來(lái)電深圳市茂迪機(jī)電設(shè)備供應(yīng)</p><div id="k7hiaco" class="leftbox clearfix"><h1>云南直流電源串聯(lián) 歡迎來(lái)電深圳市茂迪機(jī)電設(shè)備供應(yīng)</h1><div id="qph88nj" class="proBig"><div id="cvnkhol" class="bigimg"><div><p class="pic"><img src="https://tyunfile.71360.com/UploadFile/szmdjd/637393089681674399/8070519.png" class="vcenter" onerror="javascript:this.src='/static/new_net_01/images/nopic.jpg';"></p></div></div><div id="pdv8tvn" class="smallimg"><div><p class="pic"><img src="https://tyunfile.71360.com/UploadFile/szmdjd/637393089681674399/8070519.png" class="vcenter" onerror="javascript:this.src='/static/new_net_01/images/nopic.jpg';"></p></div></div></div><div id="k3mewov" 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>云南直流電源串聯(lián),直流電源</p><p><span>***更新：</span>2020-12-19 03:12:26</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="rg78oli" class="rightbox"><h3>公司基本資料信息</h3><p style="border:0;"><a rel="nofollow">深圳市茂迪機(jī)電設(shè)備有限公司</a></p><p><span>聯(lián)系人：</span>黃富強(qiáng)</p><p><span>郵箱: </span>fuqiang.huang@maodi.net</p><p><span>電話: </span>13509625980</p><p><span>傳真: </span>0755_</p><p><span>網(wǎng)址: </span>http://www.maodi.net</p><p><span>手機(jī): </span>0755-83280136</p><p><span>地址: </span>深南大道6006號(hào)華豐大廈2803、2804</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="o3q2heg" class="page-proshow02"><p class="title">詳細(xì)說明</p><div id="znce8e2" class="box"><p><p> 電源的特征量表現(xiàn)電源本身的一個(gè)重要特征量是電源的電動(dòng)勢(shì)，它等于單位正電荷從負(fù)極通過電源內(nèi)部移到正極時(shí)非靜電力所作的功。當(dāng)電源給電路提供能量時(shí)，云南直流電源串聯(lián)，所供給的功率P等于電源的電動(dòng)勢(shì)E與電流I兩者的乘積，P=E I。 </p> <p> <br /> </p> <p> 電源的另一個(gè)特征量是它的內(nèi)電阻(簡(jiǎn)稱內(nèi)阻)R0，當(dāng)通過電源的電流為I時(shí),電源內(nèi)部損耗的熱功率(即單位時(shí)間內(nèi)產(chǎn)生的焦耳熱)等于R0I。 </p> <p> 當(dāng)電源的正、負(fù)兩極沒有連通時(shí),電源處于斷路(開路)狀態(tài)，這時(shí)電源兩電極之間的電位差在量值上即等于電源的電動(dòng)勢(shì)。在斷路狀態(tài)下，不發(fā)生非電能與電能的相互轉(zhuǎn)換。當(dāng)把負(fù)載電阻接到電源的兩極上以構(gòu)成閉合回路時(shí)，通過電源內(nèi)部的電流從負(fù)極流到正極，云南直流電源串聯(lián)，云南直流電源串聯(lián)，這時(shí)，電源所提供的功率E I等于輸送到外電路的功率U I(U是電源正極與負(fù)極之間的電位差)與內(nèi)電阻中損耗的熱功率R0I之和，E I=U IR0I。于是，當(dāng)電源向負(fù)載電阻提供功率時(shí)，電源兩極間的電位差U=E-R0I。 </p> <p> <br /> 高頻開關(guān)直流電源哪家好？云南直流電源串聯(lián)</p><div style="width:100%;text-align: center;"><img style="max-width: 640px; max-height: 320px;" alt="云南直流電源串聯(lián),直流電源" src="https://tyunfile.71360.com/UploadFile/szmdjd/637393089681674399/8070519.png"></div><p style="text-indent:25px">240V高壓直流供電系統(tǒng)的優(yōu)勢(shì)240V高壓直流供電系統(tǒng)有著技術(shù)成熟、可靠性高、維護(hù)操作簡(jiǎn)易、轉(zhuǎn)換效率高、在線擴(kuò)容簡(jiǎn)單等優(yōu)點(diǎn)，通信業(yè)界一直在探討采用高壓直流系統(tǒng)來(lái)代替UPS系統(tǒng)。240V高壓直流供電系統(tǒng)具有明顯技術(shù)優(yōu)勢(shì)和價(jià)格優(yōu)勢(shì)，且能在沿用現(xiàn)有的IT設(shè)備的前提下推廣使用，因此得到了各級(jí)部門的***重視和支持。1、系統(tǒng)構(gòu)成簡(jiǎn)單原理、架構(gòu)與傳統(tǒng)通信局（站）的?48V直流供電系統(tǒng)完全相同，而后者的可用性及可靠性均得到數(shù)十年運(yùn)行的檢驗(yàn)。因此，該系統(tǒng)易于維護(hù)，對(duì)廠商的依賴度降低；負(fù)載率高且易于擴(kuò)容；運(yùn)行效率高；直流母排是電池組、整流器、負(fù)載的共同匯結(jié)點(diǎn)，系統(tǒng)可靠性高。云南進(jìn)口直流電源可編程低文波可調(diào)直流電源。</p><div style="width:100%;text-align: center;"><img style="max-width: 640px; max-height: 320px;" alt="云南直流電源串聯(lián),直流電源" src="https://tyunfile.71360.com/UploadFile/szmdjd/637393089567182490/9055356.png"></div><p style="text-indent:25px">3）通信電源通信電源其實(shí)質(zhì)上就是DC/DC變換器式電源，只是它一般以直流－48V或－24V供電，并用后備電池作DC供電的備份，將DC的供電電壓變換成電路的工作電壓，一般它又分**供電、分層供電和單板供電三種，以后者可靠性比較高。（4）電臺(tái)電源電臺(tái)電源輸入AC220V/110V，輸出DC13.8V,功率由所供電臺(tái)功率而定，幾安幾百安均有產(chǎn)品。為防止AC電網(wǎng)斷電影響電臺(tái)工作，而需要有電池組作為備份，所以此類電源除輸出一個(gè)13.8V直流電壓外,還具有對(duì)電池充電自動(dòng)轉(zhuǎn)換功能。（5）模塊電源隨著科學(xué)技術(shù)飛速發(fā)展，對(duì)電源可靠性、容量/體積比要求越來(lái)越高，模塊電源越來(lái)越顯示其優(yōu)越性，它工作頻率高、體積小、可靠性高，便于安裝和組合擴(kuò)容，所以越來(lái)越被***采用。國(guó)內(nèi)雖有相應(yīng)模塊生產(chǎn)，但因生產(chǎn)工藝未能趕上國(guó)際水平，故障率較高。DC/DC模塊電源雖然成本較高，但從產(chǎn)品的漫長(zhǎng)的應(yīng)用周期的整體成本來(lái)看，特別是因系統(tǒng)故障而導(dǎo)致的高昂的維修成本及商譽(yù)損失來(lái)看，選用該電源模塊還是合算合算的，在此還值得一提的是羅氏變換器電路，它的突出優(yōu)點(diǎn)是電路結(jié)構(gòu)簡(jiǎn)單，效率高和輸出電壓、電流的紋波值接近于零。</p><p> 變壓器：每個(gè)變壓器的每個(gè)繞組都應(yīng)該是通的，一般原邊阻值約有幾十歐姆，次極幾歐姆。應(yīng)該注意：中頻電壓互感器的原邊與負(fù)載并聯(lián)，所以其電阻值為零。 </p> <p> （五）電容器：與負(fù)載并聯(lián)的電熱電容器可能被擊穿，電容器一般分組安裝在電容器架上，檢查時(shí)應(yīng)先確定被擊穿電容器所在的組。斷開每組電容器的匯流母排與主匯流排之間的連接點(diǎn)，測(cè)量每組電容器兩個(gè)匯流排間的電阻，正常時(shí)應(yīng)為無(wú)窮大。確認(rèn)壞的組后，再斷開每臺(tái)電熱電容器引至匯流排的軟銅皮，逐臺(tái)檢查即可找到擊穿的電容器。每臺(tái)電熱電容器由四個(gè)芯子組成，外殼為一極，另一極分別通過四個(gè)絕緣子引到端蓋上，一般只會(huì)有一個(gè)芯子被擊穿，跳開這個(gè)絕緣子上的引線，這臺(tái)電容器可以繼續(xù)使用，其容量是原來(lái)的3/4。電容器的另一個(gè)故障是漏油，一般不影響使用，但要注意防火。 </p> <p> 安裝電容器的角鋼與電容器架是絕緣的，如果絕緣擊穿將使主回路接地，測(cè)量電容器外殼引線和電容器架之間的電阻，可以判斷這部分的絕緣狀況。大功率可編程直流電源。</p><div style="width:100%;text-align: center;"><img style="max-width: 640px; max-height: 320px;" alt="云南直流電源串聯(lián),直流電源" src="https://tyunfile.71360.com/UploadFile/szmdjd/637393089653520064/8066766.png"></div><p style="text-indent:25px">直流穩(wěn)壓電源可以分類兩類，包括線性和開關(guān)型。線性線性穩(wěn)定電源有一個(gè)共同的特點(diǎn)就是它的功率器件調(diào)整管工作在線性區(qū)，靠調(diào)整管之間的電壓降來(lái)穩(wěn)定輸出。由于調(diào)整管靜態(tài)損耗大，需要安裝一個(gè)很大的散熱器給它散熱。而且由于變壓器工作在工頻（50Hz)上，所以重量較大。該類電源優(yōu)點(diǎn)是穩(wěn)定性高，紋波小，可靠性高，易做成多路，輸出連續(xù)可調(diào)的成品。缺點(diǎn)是體積大、較笨重、效率相對(duì)較低。這類穩(wěn)定電源又有很多種，從輸出性質(zhì)可分為穩(wěn)壓電源和穩(wěn)流電源及集穩(wěn)壓、穩(wěn)流于一身的穩(wěn)壓穩(wěn)流（雙穩(wěn)）電源。從輸出值來(lái)看可分定點(diǎn)輸出電源、波段開關(guān)調(diào)整式和電位器連續(xù)可調(diào)式幾種。從輸出指示上可分指針指示型和數(shù)字顯示式型等等。大功率可調(diào)直流電源。云南直流電源串聯(lián)</p><p style="text-indent:25px">單通道程控直流電源。云南直流電源串聯(lián)</p><p style="text-indent:25px">由于在重大工程、工業(yè)裝備和質(zhì)量保證、基礎(chǔ)科研中，儀器儀表都是必不可少的基礎(chǔ)技術(shù)和裝備重點(diǎn)，除傳統(tǒng)領(lǐng)域的需求外，新興的智能制造、離散自動(dòng)化、生命科學(xué)、新能源、海洋工程、軌道交通等領(lǐng)域也會(huì)產(chǎn)生巨大需求。中國(guó)的新型工業(yè)化進(jìn)程，信息化和工業(yè)化融合的進(jìn)一步加深，帶動(dòng)各個(gè)工業(yè)領(lǐng)域?qū)τ陔娔苜|(zhì)量分析儀，功率分析儀，亮度計(jì)，色差儀等產(chǎn)品的需求。儀器儀表應(yīng)用領(lǐng)域?qū)挿?，覆蓋了一般經(jīng)營(yíng)項(xiàng)目是：儀器儀表、通訊器材、機(jī)械設(shè)備、五金工具的購(gòu)銷、技術(shù)維護(hù)、信息咨詢；國(guó)內(nèi)貿(mào)易；貨物與技術(shù)的進(jìn)出口業(yè)務(wù)。（法律、行政法規(guī)、國(guó)**決定禁止的項(xiàng)目除外，限制的項(xiàng)目須取得許可后方可經(jīng)營(yíng)），許可經(jīng)營(yíng)項(xiàng)目是：儀器儀表、通訊器材、機(jī)械設(shè)備、五金工具的安裝、維修。等各方面，在國(guó)民經(jīng)濟(jì)建設(shè)各行各業(yè)的運(yùn)行過程中承擔(dān)著把關(guān)者和指導(dǎo)者的任務(wù)，儀器儀表制造行業(yè)可以分為通用儀表儀器制造、**儀器儀表制造、鐘表與計(jì)時(shí)儀器制造、光學(xué)儀器制造和衡器制造。從貿(mào)易廣義角度來(lái)說，儀器儀表也可具有自動(dòng)操控、報(bào)警、信號(hào)傳遞和數(shù)據(jù)處理等功能，例如用于工業(yè)生產(chǎn)過程自動(dòng)操控中的氣動(dòng)調(diào)節(jié)儀表，和電動(dòng)調(diào)節(jié)儀表，以及集散型儀表操控系統(tǒng)也皆屬于儀器儀表。云南直流電源串聯(lián)</p><p> 深圳市茂迪機(jī)電設(shè)備有限公司成立于1995年4月，是廣東省儀器儀表協(xié)會(huì)理事單位、深圳市儀器儀表行業(yè)協(xié)會(huì)理事單位，深圳市**采購(gòu)中心定點(diǎn)采購(gòu)單位。主要由光電事業(yè)部、物體色差部、系統(tǒng)集成部，環(huán)境測(cè)試儀器部組成。 </p> <p> 經(jīng)過多年的努力，根據(jù)中國(guó)儀器儀表市場(chǎng)的需求及國(guó)內(nèi)外儀器儀表行業(yè)的發(fā)展趨勢(shì)，我公司從眾多的同類產(chǎn)品中精挑細(xì)選出一些技術(shù)先進(jìn)，質(zhì)量可靠，性價(jià)比高的品牌測(cè)量?jī)x器推薦給用戶，與日本柯尼卡美能達(dá) Konica Minolta、美國(guó)Radiant、雷云光電Rayclouds、德國(guó)Instyument Systems、日本托普康Topcon、法國(guó)ELDIM、美國(guó)藍(lán)菲Labsphere、中國(guó)臺(tái)灣茂迪、德國(guó)GMC-I高美測(cè)儀、德國(guó)GMC-I KURTH（庫(kù)爾特），TESCOM，有著緊密而***的合作聯(lián)系。 </p> <p> </p> <span style="display:none;"></span></p><br /><p>文章來(lái)源地址: http://www.cdcfah.com/cp/2464311.html</p></div></div></div></div></div><div id="l3pov8j" class="page-right twoColRt"><div id="qaxegxp" class="box01 margin10 clearfix"><h3><a href="http://www.cdcfah.com/cp/">猜你喜歡</a></h3><div id="mbyf8f9" class="recomPic likePro"><a href="http://www.cdcfah.com/cp/814588.html"><div><img 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