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class="bigimg"><div><p class="pic"><img src="https://tyunfile.71360.com/UploadFile/keaton/637255090210458984/175496.jpg" class="vcenter" onerror="javascript:this.src='/static/new_net_01/images/nopic.jpg';"></p></div></div><div id="hg9vseq" class="smallimg"><div><p class="pic"><img src="https://tyunfile.71360.com/UploadFile/keaton/637255090210458984/175496.jpg" class="vcenter" onerror="javascript:this.src='/static/new_net_01/images/nopic.jpg';"></p></div></div></div><div id="z3iogdv" 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>江蘇省</p><p><span>包裝要求：</span><span style="color: #f30;"></span></p><p><span>產(chǎn)品關(guān)鍵詞：</span>遼寧弧光保護(hù)設(shè)計(jì)廠家</p><p><span>***更新：</span>2020-06-22 10:48:27</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="32q8ya3" class="rightbox"><h3>公司基本資料信息</h3><p style="border:0;"><a rel="nofollow">江蘇基頓電氣自動(dòng)化有限公司</a></p><p><span>聯(lián)系人：</span>高經(jīng)理</p><p><span>郵箱: </span>215741001@qq.com</p><p><span>電話: </span>13328157222</p><p><span>傳真: </span>0510_</p><p><span>網(wǎng)址: </span></p><p><span>手機(jī): </span>0510-85027009</p><p><span>地址: </span>長(zhǎng)安鎮(zhèn)友誼路28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="q8p9qnp" class="page-proshow02"><p class="title">詳細(xì)說(shuō)明</p><div id="oisw2gq" class="box"><p><p> 開關(guān)柜內(nèi)的發(fā)生短路弧光的功率可高達(dá)100MW，電弧燃燒所產(chǎn)生的能量與電弧的燃燒時(shí)間及短路電流變化值呈幾何倍增長(zhǎng)，燃燒產(chǎn)生的高溫，遼寧弧光保護(hù)設(shè)計(jì)廠家、高壓將會(huì)逐步摧毀元器件、銅排以及成列的開關(guān)柜，高明亮的弧光和有害氣體對(duì)人體也有巨大的傷害。如左圖的電弧光危害示意圖所示，保護(hù)裝置動(dòng)作時(shí)間不能超過20ms，否則會(huì)產(chǎn)生不可修復(fù)的器件損壞，從而延長(zhǎng)故障修復(fù)時(shí)間。電弧光的燃弧時(shí)間長(zhǎng)短和對(duì)設(shè)備造成的損壞程度的評(píng)估如下所示 </p> <p> 35ms:沒有明顯損壞，遼寧弧光保護(hù)設(shè)計(jì)廠家，遼寧弧光保護(hù)設(shè)計(jì)廠家，一般可以在檢驗(yàn)絕緣電阻后繼續(xù)投入使用 </p> <p> 100ms:損壞較小，在開關(guān)柜再次投入運(yùn)行以前需要進(jìn)行清潔或某些小的修理 </p> <p> 500ms：設(shè)備損壞嚴(yán)重，必須更換部分設(shè)備才可再次投入使用。 </p><div style="width:100%;text-align: center;"><img style="max-width: 640px; max-height: 320px;" alt="遼寧弧光保護(hù)設(shè)計(jì)廠家" src="https://tyunfile.71360.com/UploadFile/keaton/637255090210458984/175496.jpg"></div><p> 主動(dòng)保護(hù)有以下兩種常見的可行的方法：1通過壓力傳感器進(jìn)行監(jiān)測(cè);2通過弧光傳感器進(jìn)行監(jiān)測(cè) </p> <p> <br /> </p> <p> 第一種方法（采用壓力傳感器作為電弧光探測(cè)單元）壓力波是裝置內(nèi)出現(xiàn)電弧故障的效應(yīng)之一，將在電弧出現(xiàn)后的10-15毫秒后出現(xiàn)，可以安裝一些壓力傳感器用于探測(cè)壓力峰值。當(dāng)內(nèi)部的壓力達(dá)到設(shè)定值時(shí)，電弧監(jiān)測(cè)裝置發(fā)出動(dòng)作指令，控制開關(guān)器件動(dòng)作。但是要預(yù)先確定電弧在柜內(nèi)產(chǎn)生的過壓值并非易事。 </p> <p> <br /> </p> <p> 第二種方法（采用光纖傳感器作為電弧光探測(cè)單元）弧光監(jiān)測(cè)器的操作邏輯如下：電弧現(xiàn)象會(huì)產(chǎn)生強(qiáng)烈的光輻射，因此柜體內(nèi)出現(xiàn)的弧光可以被弧光傳感器探測(cè)到當(dāng)弧光監(jiān)控系統(tǒng)探測(cè)到故障，會(huì)發(fā)出動(dòng)作信號(hào)給斷路器。這種方法的探測(cè)反應(yīng)時(shí)間*為1毫秒。弧光傳感器分為可分為電流型和光纖性（可見光和紫外光）其中支持可見光的弧光傳感器有基頓電氣JD9900B系列弧光傳感器。 </p><div style="width:100%;text-align: center;"><img style="max-width: 640px; max-height: 320px;" alt="遼寧弧光保護(hù)設(shè)計(jì)廠家" src="https://tyunfile.71360.com/UploadFile/keaton/637255090208691406/971244.jpg"></div><p style="text-indent:25px">電弧光保護(hù)裝置為變電站、電廠、工業(yè)企業(yè)等場(chǎng)合的中、低壓母線提供快速保護(hù)。當(dāng)發(fā)生弧光短路時(shí)，被弧光傳感器覆蓋區(qū)域的弧光短路可被快速定位，電弧光保護(hù)系統(tǒng)快速動(dòng)作，切斷故障電流，比較大限度降低電弧光對(duì)設(shè)備的損害及人員傷害。FAST-Bus電弧光保護(hù)系統(tǒng)采用弧光檢測(cè)和電流檢測(cè)雙判據(jù)原理，具有保護(hù)動(dòng)作速度快、可靠性高等特點(diǎn)。JD9900B弧光保護(hù)系統(tǒng)包括主單元RIZNER-FAST-BUS、衛(wèi)星裝置FAST-1S(弧光電流衛(wèi)星裝置)、FAST-2S(弧光衛(wèi)星裝置)、弧光傳感器、連接光纖等。</p></p><br /><p>文章來(lái)源地址: http://www.cdcfah.com/cp/348756.html</p></div></div></div></div></div><div id="3yfe3eq" class="page-right twoColRt"><div id="kzo33ne" class="box01 margin10 clearfix"><h3><a href="http://www.cdcfah.com/cp/">猜你喜歡</a></h3><div id="3gd0zq3" class="recomPic likePro"><a href="http://www.cdcfah.com/cp/814588.html"><div><img 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