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class="proBig"><div id="bvcj7wn" class="bigimg"><div><p class="pic"><img src="https://tyunfile.71360.com/WaterMark/UploadFile/baoyixinneng/637397338658209856/1967038.png" class="vcenter" onerror="javascript:this.src='/static/new_net_01/images/nopic.jpg';"></p></div></div><div id="xmobn73" class="smallimg"><div><p class="pic"><img src="https://tyunfile.71360.com/WaterMark/UploadFile/baoyixinneng/637397338658209856/1967038.png" class="vcenter" onerror="javascript:this.src='/static/new_net_01/images/nopic.jpg';"></p></div></div></div><div id="fz2m9q7" 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>南京小功率DC-DC直流電源銷售,DC-DC直流電源</p><p><span>***更新：</span>2020-12-28 02:10:37</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="b37ed4q" 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(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="ks3kxqc" class="page-proshow02"><p class="title">詳細說明</p><div id="rl7b2cr" class="box"><p><p style="text-indent:25px">DC-DC直流電源穩(wěn)壓電路的工作原理。1.單相整流電路，要求達到“簡單應(yīng)用”層次。2.濾波電路，要求達到“簡單應(yīng)用”層次。3.分立元件組成的線性直流穩(wěn)壓電路，要求達到“簡單應(yīng)用”層次。4.單片集成串聯(lián)型線性直流穩(wěn)壓電路，要求達到“領(lǐng)會”層次。5.開關(guān)型集成穩(wěn)壓電路，要求達到“領(lǐng)會”層次。重點：分立元件組成的直流穩(wěn)壓電路、單片集成串聯(lián)型線性直流穩(wěn)壓電路。難點：開關(guān)型集成穩(wěn)壓電路。一個穩(wěn)定的DC-DC直流電源是電子裝置必不可少的組成部分，它由如下幾部分組成:整流電路是將工頻交流電轉(zhuǎn)換為脈動直流電，南京小功率DC-DC直流電源銷售，南京小功率DC-DC直流電源銷售。濾波電路將脈動直流中的交流成分濾除，減少交流成分，增加直流成分，南京小功率DC-DC直流電源銷售。穩(wěn)壓電路采用負反饋技術(shù)，對整流后的直流電壓進一步進行穩(wěn)定。DC-DC直流電源具有自動脫扣功能的直流斷路器。南京小功率DC-DC直流電源銷售</p><div style="width:100%;text-align: center;"><img style="max-width: 640px; max-height: 320px;" alt="南京小功率DC-DC直流電源銷售,DC-DC直流電源" src="https://tyunfile.71360.com/WaterMark/UploadFile/baoyixinneng/637397338658209856/1967038.png"></div><p> DC-DC直流電源系統(tǒng)接地的處理： </p> <p> 1) 在無法快速判別接地故障點時，應(yīng)采用便攜式絕緣檢測設(shè)備進行探查。 </p> <p> 2) 拉路查找應(yīng)遵循“先次要后重要，先戶外后戶內(nèi)”的原則進行，一般按照事故照明、輔助設(shè)施、信號回路、保護及控制回路、整流裝置和蓄電池回路，對于PT并列裝置等重要工作電源嚴禁拉路。 </p> <p> 3) 推拉檢查應(yīng)先推拉容易接地的回路，依次推拉事故照明、防誤閉鎖裝置回路、戶外合閘回路、戶內(nèi)合閘回路、6～10kV控制回路、其他控制回路、主控制室信號回路、主控制室控制回路、整流裝置和蓄電池回路。 </p> <p> 4) 凡涉及繼電保護及自動裝置的DC-DC直流電源回路在拉路前應(yīng)征得調(diào)度同意，停用相應(yīng)保護裝置并做好安全措施后執(zhí)行。 </p> <p> 5) 查找和處理直流接地時工作人員應(yīng)戴線手套、穿長袖工作服。應(yīng)使用內(nèi)阻大于2000Ω/V的高內(nèi)阻電壓表，工具應(yīng)絕緣良好。防止在查找和處理過程中造成新的接地。南京小功率DC-DC直流電源銷售DC-DC直流電源分立元件組成的線性直流穩(wěn)壓電路，要求達到“簡單應(yīng)用”層次。</p><div style="width:100%;text-align: center;"><img style="max-width: 640px; max-height: 320px;" alt="南京小功率DC-DC直流電源銷售,DC-DC直流電源" src="https://tyunfile.71360.com/WaterMark/UploadFile/baoyixinneng/637397339169870019/975762.png"></div><p style="text-indent:25px">DC-DC直流電源組成：1.交流輸入單元充電裝置交流輸入應(yīng)設(shè)兩個回路，兩路交流電源應(yīng)分別取自站用電不同段交流母線。當(dāng)充電裝置兩路交流輸入采用切換方式時，切換裝置應(yīng)穩(wěn)定可靠;當(dāng)充電裝置兩路交流輸入不采用切換方式時，每路交流輸入應(yīng)盡量均分充電模塊的數(shù)量。2.充電模塊高頻開關(guān)電源充電模塊的主要功能是將交流電源變換為***的DC-DC直流電源。模塊由全波整流及濾波器、高頻變換及高頻變壓器、高頻整流濾波器等構(gòu)成。模塊內(nèi)部應(yīng)具有監(jiān)控功能，顯示輸出電壓/電流值，能不依賴監(jiān)控單元**工作;應(yīng)具有保護、報警功能;并可帶電插拔更換及具有軟啟動功能。</p><p style="text-indent:25px">直流穩(wěn)壓電源可分為連續(xù)導(dǎo)電式與開關(guān)式兩大類：連續(xù)導(dǎo)電式穩(wěn)壓電源它的基本框圖。變壓器把單相或三相交流電變壓到適當(dāng)值,然后經(jīng)整流濾波后獲得不穩(wěn)定的DC-DC直流電源,再通過穩(wěn)壓電路得到穩(wěn)定電壓或穩(wěn)定電流。這種方式的缺點是提高穩(wěn)定系數(shù)必須增大串聯(lián)電阻，并且輸入電壓要遠高于輸出電壓。是串聯(lián)調(diào)整方式。誤差放大器將取樣電壓與基準電壓之差值加以放大，控制串聯(lián)調(diào)整元件的壓降，以使輸出電壓（或電流）得到穩(wěn)定。連續(xù)導(dǎo)電式穩(wěn)壓電源有線路簡單、紋波小、相互干擾小等優(yōu)點；缺點是體積大，耗材多，效率低等。因并聯(lián)調(diào)整方式中的串聯(lián)電阻以及串聯(lián)調(diào)整方式中的串接的調(diào)整元都流過負載電流，功耗很大，效率常低于40～60％。開關(guān)式穩(wěn)壓電源它的工作原理示于。DC-DC直流電源直流回路嚴禁采用交流空氣斷路器。</p><div style="width:100%;text-align: center;"><img style="max-width: 640px; max-height: 320px;" alt="南京小功率DC-DC直流電源銷售,DC-DC直流電源" src="https://tyunfile.71360.com/WaterMark/UploadFile/baoyixinneng/637397339005416942/3757188.png"></div><p style="text-indent:25px">DC-DC直流電源輸入濾波電容器的選擇：鋁電解電容器的額定電壓的1.3倍作為電容器的浪涌電壓，工作電壓高于160V時，是額定工作電壓+50V作為浪涌電壓，這是生產(chǎn)廠家保證的電壓，可以允許在短時間內(nèi)承受此電壓。電容器處于浪涌電壓時，電流會很大，如果時間太長，會爆開。所以鋁電容器應(yīng)該選用額定電壓稍高的，實際工作電壓為標稱額定電壓的70~80%為宜，所以選用額定電壓值為400V的鋁電解電容。由于模塊電源體積的限制，在85～265Vac的輸入范圍內(nèi)，前級儲能鋁電解電容的容值一般選取2倍于輸出功率的值，即2.5*2=5，綜上，鋁電解電容的取值以4.7μF/400V為宜。DC-DC直流電源將不穩(wěn)定直流電壓送入逆變器變換成高頻交流電。南京小功率DC-DC直流電源銷售</p><p style="text-indent:25px">DC-DC直流電源若無原裝測試短針，則須自制短接地線。南京小功率DC-DC直流電源銷售</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(shè)備，主要應(yīng)用于小型開關(guān)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(dǎo)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(dǎo)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(guān)設(shè)備（彈簧機構(gòu)真空斷路器、永磁機構(gòu)真空斷路器、電動負荷開關(guān)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(guān)站、小型用戶變電站及小型10KV變電站系統(tǒng)采用一體化設(shè)計思想，由整流模塊、監(jiān)控模塊、降壓單元、配電單元和電池安裝箱構(gòu)成；具有體積小、結(jié)構(gòu)簡單、**構(gòu)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。南京小功率DC-DC直流電源銷售</p><p style="text-indent:25px">深圳市保益新能電氣有限公司致力于電工電氣，是一家生產(chǎn)型公司。公司業(yè)務(wù)涵蓋UPS/EPS電源，雙向逆變器，安防電源，激光儲能電源等，價格合理，品質(zhì)有保證。公司將不斷增強企業(yè)重點競爭力，努力學(xué)習(xí)行業(yè)知識，遵守行業(yè)規(guī)范，植根于電工電氣行業(yè)的發(fā)展。在社會各界的鼎力支持下，持續(xù)創(chuàng)新，不斷鑄造***服務(wù)體驗，為客戶成功提供堅實有力的支持。</p></p><br /><p>文章來源地址: http://m.cdcfah.com/cp/2591547.html</p></div></div></div></div></div><div id="scmogfh" class="page-right 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