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src="https://tyunfile.71360.com/WaterMark/UploadFile/baoyixinneng/637397338539919003/532555.png" class="vcenter" onerror="javascript:this.src='/static/new_net_01/images/nopic.jpg';"></p></div></div><div id="ncztfc8" class="smallimg"><div><p class="pic"><img src="https://tyunfile.71360.com/WaterMark/UploadFile/baoyixinneng/637397338539919003/532555.png" class="vcenter" onerror="javascript:this.src='/static/new_net_01/images/nopic.jpg';"></p></div></div></div><div id="xwtlxzb" 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)品關鍵詞：</span>濟南微功率DC-DC直流電源廠家,DC-DC直流電源</p><p><span>***更新：</span>2021-02-06 05:10:26</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="gvnf2gi" class="rightbox"><h3>公司基本資料信息</h3><p style="border:0;"><a rel="nofollow">深圳市保益新能電氣有限公司</a></p><p><span>聯(lián)系人：</span>葉立民</p><p><span>郵箱: </span>1301978383@qq.com</p><p><span>電話: </span>18675588113</p><p><span>傳真: </span>0755_</p><p><span>網(wǎng)址: </span>http://www.boynelectric.com</p><p><span>手機: </span>0755-21070344</p><p><span>地址: </span>大浪街道浪口社區(qū)華榮路496號德泰工業(yè)區(qū)1號廠房4層402</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="o8t2kwd" class="page-proshow02"><p class="title">詳細說明</p><div id="wl7azfm" class="box"><p><p style="text-indent:25px">高壓分布式DC-DC直流電源：高壓分布式DC-DC直流電源是一種新型的DC-DC直流電源設備，主要應用于小型開關站和用戶末端，為二次控制線路（如微機保護等智能終端及指示燈、模擬指示器等）提供可靠不間斷工作電源，避免交流失電時導致微機保護失去保護作用，解決因操作過電壓及諧波等因素使UPS失效從而導致微機保護失效問題。時還可為符合裝置功率要求的一次開關設備（彈簧機構真空斷路器、永磁機構真空斷路器、電動負荷開關等）提供直流操作電源。壁掛式DC-DC直流電源壁掛DC-DC直流電源適合小型開關站、小型用戶變電站及小型10KV變電站系統(tǒng)采用一體化設計思想，由整流模塊，濟南微功率DC-DC直流電源廠家、監(jiān)控模塊、降壓單元、配電單元和電池安裝箱構成；具有體積小，濟南微功率DC-DC直流電源廠家，濟南微功率DC-DC直流電源廠家、結構簡單、**構成系統(tǒng)等特點；監(jiān)控模塊采用LCD漢字菜單顯示，對系統(tǒng)監(jiān)控和電池自動化管理功能完善，具有與自動化系統(tǒng)連接四遙接口，提供RS232和RS485兩種通訊接口選擇，提供RTU、CDT、MODBUS三種通訊規(guī)約選擇。DC-DC直流電源過大，以避免因為電容過大形成發(fā)動剎那間過流而損壞模塊。濟南微功率DC-DC直流電源廠家</p><div style="width:100%;text-align: center;"><img style="max-width: 640px; max-height: 320px;" alt="濟南微功率DC-DC直流電源廠家,DC-DC直流電源" src="https://tyunfile.71360.com/WaterMark/UploadFile/baoyixinneng/637397338539919003/532555.png"></div><p style="text-indent:25px">DC-DC直流電源系統(tǒng)的保護級差的定義：DC-DC直流電源系統(tǒng)保護電器的級差是指所采用的同一系列保護電器上下級額定電流的等級之差。二、DC-DC直流電源系統(tǒng)的保護級數(shù)的定義。保護級數(shù)是指從DC-DC直流電源蓄電池總出口到負荷端區(qū)間的保護電器串聯(lián)的數(shù)量（保護電器指直流斷路器、熔斷器）。一個DC-DC直流電源系統(tǒng)所選保護電器的級數(shù)zui多不宜超過4級。三、直流系統(tǒng)熔斷器和直流斷路器級差配合原則。1)上、下級均為熔斷器的，按照2倍及以上額定電流選擇級差配合。2)上、下級均為直流斷路器的，按照4倍及以上額定電流選擇級差配合。3)上級為熔斷器，下級為直流斷路器的，按照2倍及以上額定電流選擇級差配合（由于直流斷路器動作比熔斷器要快，根據(jù)試驗結果，直流斷路器裝設在熔斷器的下一級時，熔斷器的額定電流為直流斷路器額定電流的2倍及以上，即可保證動作的選擇性）。4) 變電站內(nèi)設置直流保護電器的級數(shù)不宜超過4級。高功率DC-DC直流電源報價DC-DC直流電源一般按照事故照明、輔助設施、信號回路、保護及控制回路、整流裝置和蓄電池回路。</p><div style="width:100%;text-align: center;"><img style="max-width: 640px; max-height: 320px;" alt="濟南微功率DC-DC直流電源廠家,DC-DC直流電源" src="https://tyunfile.71360.com/WaterMark/UploadFile/baoyixinneng/637397338705856327/8520994.png"></div><p style="text-indent:25px">DC-DC直流電源系統(tǒng)配置該500千伏變電站直流系統(tǒng)配置3套直流接地絕緣裝置，分別為直流總饋線屏內(nèi)一套、220千伏保護室直流分饋線屏一套和500千伏保護室直流分饋線屏一套，配置三臺充電、浮充電裝置，兩組蓄電池組的供電方式。蓄電池1組和1號充電機接于一段直流母線上，蓄電池2組和2號充電機接于二段直流母線上第三臺0號充電裝置（備用充電裝置）可在兩段母線之間切換。而是有交流特征的正弦波，工作人員沿著這個線索來到母差保護屏對其各個支路進行檢測，由于母差保護屏沒有接入信息保護子站和軟報文信息，沒有遙信量，我們又對波形波動比較大的回路對應的啟動失靈壓板進行投退。</p><p style="text-indent:25px">DC/DC模塊電源以其體積小巧、性能卓異、使用方便的顯著特點，在通信、網(wǎng)絡、工控、鐵路、 ***等領域日益得到普遍的應用。怎樣正確合理地選用DC/DC模塊電源呢，筆者將從DC/DC模塊電源開發(fā)設計的角度，談一談這方面的問題，以供廣大系統(tǒng)設計人員參考。DCDC的意思是直流變(到)直流(不同DC-DC直流電源值的轉(zhuǎn)換)，只要符合這個定義都可以叫DCDC轉(zhuǎn)換器。具體是指通過自激振蕩電路把輸入的直流電轉(zhuǎn)變?yōu)榻涣麟?，再通過變壓器改變電壓之后再轉(zhuǎn)換為直流電輸出，或者通過倍壓整流電路將交流電轉(zhuǎn)換為高壓直流電輸出。DC-DC直流電源用改變晶閘管的導通時間來調(diào)整輸出電壓。</p><div style="width:100%;text-align: center;"><img style="max-width: 640px; max-height: 320px;" alt="濟南微功率DC-DC直流電源廠家,DC-DC直流電源" src="https://tyunfile.71360.com/WaterMark/UploadFile/baoyixinneng/637397339169870019/975762.png"></div><p style="text-indent:25px">DC-DCDC-DC直流電源：串聯(lián)型穩(wěn)壓電源的電路認識串聯(lián)型穩(wěn)壓電路屬直流穩(wěn)壓電源中的一種，其實是在三端穩(wěn)壓器出現(xiàn)之前比較常用的直流供電方法，在三端穩(wěn)壓器出現(xiàn)之前，串聯(lián)穩(wěn)壓器通常有OP放大器和穩(wěn)壓二極管構成誤差檢測電路，一般電路中OP放大器的反向輸入端子與輸出電壓的檢測信號相連，正向輸入端子與基準電壓Vref相連，Vs=Vout*R2/(R1+R2)。由于放大信號ΔVs為負值，控制晶體管的基級電壓下降，因此輸出電壓減小在正常情況下，必有Vref=Vs=Vout*R2/(R1+R2)，調(diào)整R1，R2之比可設定所需要的輸出電壓值。其實負載大小可以把三極管換成達林頓管等等，這種串聯(lián)型穩(wěn)壓電路做組成的直流穩(wěn)壓電源處理不當，極易產(chǎn)生振蕩?，F(xiàn)在沒有一定模擬功底的工程師，一般現(xiàn)在不用這種方法，而是直接采用集成的三端穩(wěn)壓電路，進行DC/DC轉(zhuǎn)換電路的使用。DC-DC直流電源非靜電力的性質(zhì)不同，能量轉(zhuǎn)換的過程也不同。濟南微功率DC-DC直流電源廠家</p><p style="text-indent:25px">DC-DC直流電源由于內(nèi)阻增大，一般只能用于所需電流強度較小的電路。濟南微功率DC-DC直流電源廠家</p><p style="text-indent:25px">封裝形式：DC/DC變換器的外形尺寸和輸出形式差異很大。小功率產(chǎn)品采用密封外殼，外形十分纖小;大功率產(chǎn)品常采用quarter-brick或half-brick的形式，電路或暴露，或以外殼包裹。在選擇時，需要注意以下兩個方面：一，引腳是否在同一平面上;第二，是否便于焊接。SMT形式的變換器必須要符合IEC191-6:1990標準的要求，該標準對SMT器件引腳的共面問題做出了嚴格限定。如果變換器不能滿足這個要求，就需要為其設計專門的焊接裝配工藝，這會增加裝配時間，提高生產(chǎn)成本。模塊電源的封裝形式多種多樣，符合國際標準的也有，非標準的也有，就同一公司產(chǎn)品而言，相同功率產(chǎn)品有不同封裝，相同封裝有不同功率，那么怎么選擇封裝形式呢?主要有三個方面：①一定功率條件**積要盡量小，這樣才能給系統(tǒng)其他部分更多空間更多功能;②盡量選擇符合國際標準封裝的產(chǎn)品，因為兼容性較好，不局限于一兩個供貨廠家;③?應具有可擴展性，便于系統(tǒng)擴容和升級。全部符合國際標準，為業(yè)界普遍采用的半磚、全磚封裝，并且半磚產(chǎn)品功率范圍覆蓋50～200W，全磚產(chǎn)品覆蓋100～300W。濟南微功率DC-DC直流電源廠家</p></p><br /><p>文章來源地址: http://www.cdcfah.com/cp/3187321.html</p></div></div></div></div></div><div id="iaspr7h" class="page-right twoColRt"><div id="tsebdkr" class="box01 margin10 clearfix"><h3><a href="http://www.cdcfah.com/cp/">猜你喜歡</a></h3><div id="hb3c3ya" class="recomPic likePro"><a href="http://www.cdcfah.com/cp/814588.html"><div><img 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