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onerror="javascript:this.src='/static/new_net_01/images/nopic.jpg';"></p></div></div><div id="ecy7feq" class="smallimg"><div><p class="pic"><img src="http://tyunfile.71360.com/UploadFile/yonglekeji/637205601035400391/4070147.jpg" class="vcenter" onerror="javascript:this.src='/static/new_net_01/images/nopic.jpg';"></p></div></div></div><div id="n3dzvr3" 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>云南省</p><p><span>包裝要求：</span><span style="color: #f30;"></span></p><p><span>產(chǎn)品關(guān)鍵詞：</span>云南英威騰變頻器修理公司,變頻器</p><p><span>***更新：</span>2021-02-03 06:06:38</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="8ndufqc" class="rightbox"><h3>公司基本資料信息</h3><p style="border:0;"><a rel="nofollow">云南永樂(lè)科技有限公司</a></p><p><span>聯(lián)系人：</span>姜先生</p><p><span>郵箱: </span>1738252619@qq.com</p><p><span>電話: </span>18987299299</p><p><span>傳真: </span>0871_63853456</p><p><span>網(wǎng)址: </span></p><p><span>手機(jī): </span>0871-63853456</p><p><span>地址: </span>昆明市官渡區(qū)昌宏路宸瑞五金機(jī)電市場(chǎng)B5-4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="otugxof" class="page-proshow02"><p class="title">詳細(xì)說(shuō)明</p><div id="trne23n" class="box"><p><p style="text-indent:25px"><span style="font-size:14px;"></span><span style="font-size:14px;">交流一交流變頻器是直接將工頻電源轉(zhuǎn)變成所需頻率的交流電源，所以也稱(chēng)直接變頻。其特點(diǎn)是：一次變流，效率高；能四象限運(yùn)行：低頻時(shí)輸出波形為正弦；電網(wǎng)功率因素低：一般情況下，輸出蕞好頻率為電網(wǎng)頻率的1/3一1/2.所以交流一交流變頻器在異步電動(dòng)機(jī)變頻調(diào)速方面主要用于低速大功率傳動(dòng)，特別轉(zhuǎn)矩要求叫高的場(chǎng)合，如大型的軋鋼機(jī)，電機(jī)車(chē)，低速水泥回轉(zhuǎn)窯等，云南英威騰變頻器修理公司。這種變頻器是目前中小型異步電動(dòng)機(jī)變頻調(diào)速電源的主要形式。這種變頻器從其性質(zhì)上看，又可分為電壓源變頻器和電流源變頻器。<strong>【云南永樂(lè)科技有限公司主要銷(xiāo)售維修變頻器、ABB變頻器、英威騰變頻器、東力變頻器、施耐德變頻器，云南英威騰變頻器修理公司、西門(mén)子變頻器等等，如有需求，云南英威騰變頻器修理公司，歡迎大家來(lái)電咨詢(xún)！】</strong><strong></strong></span>公司以服務(wù)為宗旨的指導(dǎo)思想，穩(wěn)定發(fā)展。云南英威騰變頻器修理公司</p><div style="width:100%;text-align: center;"><img style="max-width: 640px; max-height: 320px;" alt="云南英威騰變頻器修理公司,變頻器" src="http://tyunfile.71360.com/UploadFile/yonglekeji/637205601035400391/4070147.jpg"></div><p> <span style="font-size:14px;">變頻器組成：</span> </p> <p> <span style="font-size:14px;">變頻器由</span><span style="font-size:14px;">主電路和控制電路組成。主電路由整流器、濾波器和逆變器組成?？刂齐娐酚蓡纹瑱C(jī)、驅(qū)動(dòng)電路和光電隔離電路組成。</span><span style="font-size:14px;">變頻技術(shù)是為滿(mǎn)足交流電動(dòng)機(jī)無(wú)級(jí)調(diào)速的需要而誕生的。隨著電力電子器件的發(fā)展[從晶閘管（SCR）到現(xiàn)在的IGBT（絕緣柵雙極晶體管）]，功率變換技術(shù)的不斷發(fā)展和pwm-vvvf理論的成熟。<strong>【云南永樂(lè)科技有限公司主要銷(xiāo)售維修變頻器、ABB變頻器、英威騰變頻器、東力變頻器、施耐德變頻器、西門(mén)子變頻器等等，如有需求，歡迎大家來(lái)電咨詢(xún)！】</strong><strong></strong></span> </p> <p> <br /> 云南工業(yè)變頻器批發(fā)只有客戶(hù)好，我們才能更好。</p><div style="width:100%;text-align: center;"><img style="max-width: 640px; max-height: 320px;" alt="云南英威騰變頻器修理公司,變頻器" src="http://tyunfile.71360.com/UploadFile/yonglekeji/637205601034609375/8789316.jpg"></div><p> <span style="font-size:14px;">變頻器的基本組成</span> </p> <p> <span style="font-size:14px;">變頻器通常分為4部分：整流單元、高容量電容、逆變器和控制器。</span> </p> <p> <span style="font-size:14px;">整流單元：將工作頻率固定的交流電轉(zhuǎn)換為直流電。</span> </p> <p> <span style="font-size:14px;">高容量電容：存儲(chǔ)轉(zhuǎn)換后的電能。</span> </p> <p> <span style="font-size:14px;">逆變器：由大功率開(kāi)關(guān)晶體管陣列組成電子開(kāi)關(guān)，將直流電轉(zhuǎn)化成不同頻率、寬度、幅度的方波。</span> </p> <p> <span style="font-size:14px;">控制器：按設(shè)定的程序工作，控制輸出方波的幅度與脈寬，使疊加為近似正弦波的交流電，驅(qū)動(dòng)交流電動(dòng)機(jī)。</span> </p> <p> <span style="font-size:14px;"><strong>【云南永樂(lè)科技有限公司主要銷(xiāo)售維修變頻器、ABB變頻器、英威騰變頻器、東力變頻器、施耐德變頻器、西門(mén)子變頻器等等，如有需求，歡迎大家來(lái)電咨詢(xún)！】</strong></span> </p><p> <span style="font-size:14px;">變頻器控制原理</span> </p> <p> <span style="font-size:14px;">1）控制回路：具有工頻變頻的手動(dòng)切換，以便在變頻出現(xiàn)故障時(shí)可以手動(dòng)切工頻運(yùn)行，因輸出端不能加電壓，固工頻和變頻要有互鎖。</span> </p> <p> <span style="font-size:14px;">2）主回路：電抗器的作用是防止變頻器產(chǎn)生的高次諧波通過(guò)電</span><span style="font-size:14px;">源的輸入回路返回到電網(wǎng)從而影響其他的受電設(shè)備，需要根據(jù)變頻器的容量大小來(lái)決定是否需要加電抗器；濾波器是安裝在變頻器的輸出端，減少變頻器輸出的高次諧波，當(dāng)變頻器到電機(jī)的距離較遠(yuǎn)時(shí)，應(yīng)該安裝濾波器。雖然變頻器本身有各種保護(hù)功能，但缺相保護(hù)卻并不完美，斷路器在主回路中起到過(guò)載，缺相等保護(hù)，選型時(shí)可按照變頻器的容量進(jìn)行選擇?？梢杂米冾l器本身的過(guò)載保護(hù)代替熱繼電器。<strong>【云南永樂(lè)科技有限公司主要銷(xiāo)售維修變頻器、ABB變頻器、英威騰變頻器、東力變頻器、施耐德變頻器、西門(mén)子變頻器等等，如有需求，歡迎大家來(lái)電咨詢(xún)！】</strong></span> 公司讓客戶(hù)體驗(yàn)到真正的便捷與實(shí)惠。</p><div style="width:100%;text-align: center;"><img style="max-width: 640px; max-height: 320px;" alt="云南英威騰變頻器修理公司,變頻器" src="http://tyunfile.71360.com/UploadFile/yonglekeji/637205601032851563/2434727.jpg"></div><p> <span style="font-size:14px;">變頻器供電系統(tǒng)的諧波管理與無(wú)功功率補(bǔ)償：</span> </p> <p> <span style="font-size:14px;">隨著變頻器的普遍應(yīng)用，變頻器供電系統(tǒng)的諧波管理與無(wú)功功率補(bǔ)償?shù)囊饬x逐步被人們所認(rèn)識(shí)。變頻器供電電源按傅立葉級(jí)數(shù)能夠合成為基波有功電流，基波無(wú)功電流，諧波和間諧波電流。</span> </p> <p> <span style="font-size:14px;">基波無(wú)功電流占用電網(wǎng)容量；招致網(wǎng)壓動(dòng)搖；在供配電設(shè)備產(chǎn)生熱損耗；降低了供配電設(shè)備運(yùn)轉(zhuǎn)牢靠性。諧波和間諧波的集膚效應(yīng)使輸電線等效截面積變小，線路損耗增加；鐵芯中附加高頻渦流損耗；諧波和間諧波電流招致網(wǎng)壓波形畸變和輻射干擾，惹起同一電網(wǎng)下其它負(fù)載出力減小，損耗增加，以至誤動(dòng)作。<strong>【云南永樂(lè)科技有限公司主要銷(xiāo)售維修變頻器、ABB變頻器、英威騰變頻器、東力變頻器、施耐德變頻器、西門(mén)子變頻器等等，如有需求，歡迎大家來(lái)電咨詢(xún)！】</strong><strong></strong></span> 昆明哪家變頻器公司好？昆明低壓變頻器經(jīng)銷(xiāo)商</p><p style="text-indent:25px">公司實(shí)力雄厚、重信用、守合同、保證產(chǎn)品質(zhì)量。云南英威騰變頻器修理公司</p><p> <span style="font-size:14px;">用戶(hù)體驗(yàn)式服務(wù)管理</span> </p> <p> <span style="font-size:14px;">1、方便：24小時(shí)熱線開(kāi)通，傳真、郵箱、QQ、網(wǎng)點(diǎn)電話等多渠道受理客戶(hù)問(wèn)題，首問(wèn)負(fù)責(zé)制；</span> </p> <p> <span style="font-size:14px;">2、重視：1小時(shí)內(nèi)響應(yīng)客戶(hù)，同客戶(hù)正面出具問(wèn)題解決方案和計(jì)劃；</span> </p> <p> <span style="font-size:14px;">3、安全：遍布國(guó)內(nèi)省市的網(wǎng)點(diǎn)和聯(lián)保中心，24小時(shí)內(nèi)快速到達(dá)客戶(hù)現(xiàn)場(chǎng)，服務(wù)快速保障；</span> </p> <p> <span style="font-size:14px;">4、專(zhuān)業(yè)：快速解決現(xiàn)場(chǎng)問(wèn)題、專(zhuān)業(yè)客戶(hù)應(yīng)對(duì)、嚴(yán)謹(jǐn)處理流程；為客戶(hù)培訓(xùn)產(chǎn)品維修、維護(hù)、操作知識(shí)；</span> </p> <p> <span style="font-size:14px;">5、體貼：72小時(shí)內(nèi)回訪客戶(hù)，關(guān)懷客戶(hù)感</span><span style="font-size:14px;">受，確保產(chǎn)品正常使用；</span> </p> <p> <span style="font-size:14px;">6、信賴(lài)：出具產(chǎn)品問(wèn)題專(zhuān)業(yè)分析報(bào)告，杜絕現(xiàn)場(chǎng)隱患，提供服務(wù)保障。</span> </p> <p> <span style="font-size:14px;">【云南永樂(lè)科技有限公司主要銷(xiāo)售維修變頻器、ABB變頻器、英威騰變頻器、東力變頻器、施耐德變頻器、西門(mén)子變頻器等等，如有需求，歡迎大家來(lái)電咨詢(xún)！】</span> 云南英威騰變頻器修理公司</p></p><br /><p>文章來(lái)源地址: http://www.cdcfah.com/cp/3136191.html</p></div></div></div></div></div><div id="svwcef8" class="page-right twoColRt"><div id="ldug2tz" class="box01 margin10 clearfix"><h3><a href="http://www.cdcfah.com/cp/">猜你喜歡</a></h3><div id="esulsj2" class="recomPic likePro"><a href="http://www.cdcfah.com/cp/814588.html"><div><img 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