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href="http://www.cdcfah.com/cp/third-gkxtjzbyb_baohuqijq/">保護(hù)器</a>?北海數(shù)字化弧光保護(hù) 歡迎來(lái)電江蘇基頓電氣供應(yīng)</p><div id="elicd8v" class="leftbox clearfix"><h1>北海數(shù)字化弧光保護(hù) 歡迎來(lái)電江蘇基頓電氣供應(yīng)</h1><div id="cq3vnua" class="proBig"><div id="gov82pm" class="bigimg"><div><p class="pic"><img src="https://tyunfile.71360.com/UploadFile/keaton/637255090209130859/8513785.jpg" class="vcenter" onerror="javascript:this.src='/static/new_net_01/images/nopic.jpg';"></p></div></div><div id="pnp9fev" class="smallimg"><div><p class="pic"><img src="https://tyunfile.71360.com/UploadFile/keaton/637255090209130859/8513785.jpg" class="vcenter" onerror="javascript:this.src='/static/new_net_01/images/nopic.jpg';"></p></div></div></div><div id="rfc4d9s" 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>北海數(shù)字化弧光保護(hù),弧光保護(hù)</p><p><span>***更新：</span>2020-07-22 21:28:27</p><p><span id="click" >瀏覽次數(shù)：1次</span></p><a rel="nofollow" class="button">聯(lián)系我們</a></div></div><div id="ogihtvx" 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(huà): </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(xiàn)] <a rel="nofollow"> [加為商友] </a><a rel="nofollow"> [發(fā)送信件] </a></p></div></div><div id="f33yqsp" class="page-proshow02"><p class="title">詳細(xì)說(shuō)明</p><div id="mk2wypm" class="box"><p><p> 接地故障電弧起火：由于“接地故障發(fā)生的幾率遠(yuǎn)大于帶電導(dǎo)體間的短路”，所以“接地故障電弧引起的火災(zāi)遠(yuǎn)多于帶電導(dǎo)體間的電弧火災(zāi)”。這是因?yàn)椤霸陔姎饩€(xiàn)路施工中，穿鋼管拉電線(xiàn)時(shí)帶電導(dǎo)體絕緣外皮之間并無(wú)因相對(duì)運(yùn)動(dòng)而產(chǎn)生的摩擦，但帶電導(dǎo)體絕緣外皮與鋼管間的摩擦卻使絕緣摩薄或受損。另外，發(fā)生雷擊時(shí)地面上出現(xiàn)瞬變電磁場(chǎng)，它對(duì)電氣線(xiàn)路將感應(yīng)瞬態(tài)過(guò)電壓”，此時(shí)“芯線(xiàn)上感應(yīng)的瞬態(tài)過(guò)電壓是基本相同的，而電纜梯架則因接地而為地電壓”，所以，芯線(xiàn)對(duì)地的電位差較大。從摩損和電位差大兩方面分析，接地故障電弧起火率自然偏高。 </p> <p> 爬電起火：爬電是指電弧不是建立在空氣間隙中的電弧，北海數(shù)字化弧光保護(hù)，北海數(shù)字化弧光保護(hù)，而是出現(xiàn)在設(shè)備絕緣表面上的電弧，北海數(shù)字化弧光保護(hù)。例如電源插頭的絕緣表面上的一個(gè)或多個(gè)相線(xiàn)插腳和PE線(xiàn)插腳，它們之間的絕緣表面可能發(fā)生爬電。專(zhuān)業(yè)生產(chǎn)電弧光保護(hù)裝置廠家。北海數(shù)字化弧光保護(hù)</p><div style="width:100%;text-align: center;"><img style="max-width: 640px; max-height: 320px;" alt="北海數(shù)字化弧光保護(hù),弧光保護(hù)" src="https://tyunfile.71360.com/UploadFile/keaton/637255090209130859/8513785.jpg"></div><p> 電弧光的危害 </p> <p> <br /> </p> <p> 開(kāi)關(guān)設(shè)備內(nèi)部間隔發(fā)生故障而產(chǎn)生的電弧光會(huì)造成開(kāi)關(guān)設(shè)備中的壓力和溫度迅速增加，如不及時(shí)切除、將可能造成以下重大危害： </p> <p> <br /> </p> <p> 電弧光中心溫度（相當(dāng)于太陽(yáng)表面溫度的2~4倍，約為10000~20000°C過(guò)高導(dǎo)致銅排、鋁排熔毀氣化； </p> <p> <br /> </p> <p> 電纜熔毀，電纜護(hù)套著火； </p> <p> <br /> </p> <p> 開(kāi)關(guān)設(shè)備劇烈振動(dòng)，使固定元件松脫； </p> <p> <br /> </p> <p> 使上一級(jí)變壓器承受近距離短路沖擊，故障電流產(chǎn)生的電動(dòng)力可能導(dǎo)致變壓器繞組變形引起匝間短路； </p> <p> <br /> </p> <p> 故障產(chǎn)生的弧光沖擊波以300m/s速度爆發(fā)，可摧毀途中的任何物質(zhì)，若波及站內(nèi)直流系統(tǒng)導(dǎo)致全站直流失電，將造成無(wú)法彌補(bǔ)的重大損失； </p> <p> <br /> </p> <p> 燃燒產(chǎn)生的有害氣體被人吸入會(huì)產(chǎn)生生命危險(xiǎn)； </p> <p> <br /> </p> <p> 高溫灼傷皮膚，強(qiáng)光刺傷眼睛 </p> <p> <br /> </p> <p> 爆破音振損傷耳膜，肺臟； </p> <p> <br /> </p> <p> 碎片飛射，造成人員傷亡。 </p> <p> <br /> </p> <p> 電弧光的監(jiān)測(cè)及防護(hù) </p> <p> <br /> </p> <p> 當(dāng)?shù)蛪洪_(kāi)關(guān)柜發(fā)生電弧，可以通過(guò)三種不同的設(shè)計(jì)理念保護(hù)操作人員和設(shè)備的安全： </p> <p> <br /> </p> <p> 改善設(shè)備的機(jī)械結(jié)構(gòu)，使之能夠承受電?。ū粍?dòng)保護(hù)） </p> <p> <br /> </p> <p> 設(shè)備安裝限制內(nèi)部電弧效應(yīng)的裝置（主動(dòng)保護(hù)） </p> <p> <br /> 秦皇島弧光保護(hù)作用中低壓弧光保護(hù)，專(zhuān)業(yè)提供，歡迎來(lái)電咨詢(xún)。</p><div style="width:100%;text-align: center;"><img style="max-width: 640px; max-height: 320px;" alt="北海數(shù)字化弧光保護(hù),弧光保護(hù)" src="https://tyunfile.71360.com/UploadFile/keaton/637255090209853516/2408474.jpg"></div><p> 開(kāi)關(guān)柜和控制柜內(nèi)電弧的發(fā)生 </p> <p> 主配電柜或大型的電氣設(shè)備(如變壓器或發(fā)電機(jī))附近短路能量高而且有故障產(chǎn)生時(shí)的電壓也很高。 </p> <p> 在柜體內(nèi)形成電弧的過(guò)程可分為四個(gè)階段: </p> <p> 壓縮階段:電弧占據(jù)了整個(gè)空氣空間，由于持續(xù)的釋放能量產(chǎn)生過(guò)熱，導(dǎo)致對(duì)流和輻射，保留在柜內(nèi)的空氣被加熱，在整個(gè)初級(jí)階段不同區(qū)域的溫度和壓力值不一樣。 </p> <p> 擴(kuò)展階段:從這一瞬間開(kāi)始，內(nèi)部壓力增加，由于過(guò)熱的空氣開(kāi)始流動(dòng)而形成一個(gè)空洞。在這個(gè)階段其壓力達(dá)到比較大值，并因?yàn)闊峥諝獾尼尫哦_(kāi)始減弱。 </p> <p> 發(fā)射階段:由于電弧能量的持續(xù)釋放，幾乎所有的空氣均被一個(gè)緩和但恒定的壓力擠壓出去。 </p> <p> 發(fā)熱階段:在驅(qū)逐出空氣后，柜內(nèi)的溫度幾乎達(dá)到電弧的溫度。***階段就由此開(kāi)始，直至熄滅。此時(shí)，所有金屬和絕緣體在受到產(chǎn)生的氣體、霧和溶蝕物質(zhì)顆粒的侵蝕后，已融為一體了。 </p> <p> 當(dāng)電弧出現(xiàn)在非常封閉的設(shè)備環(huán)境時(shí)，可能不會(huì)出現(xiàn)上述某些階段或者只有較少的影響;然而，在電弧的周?chē)?，?huì)形成壓力波、并導(dǎo)致溫度的上升。 </p><p> 什么是弧光放電？ </p> <p> 當(dāng)兩電極間電壓升高時(shí)，在電極**近處空氣中的正負(fù)離子被電場(chǎng)加速，在移動(dòng)的過(guò)程中與其它空氣分子碰撞產(chǎn)生新的離子，這種離子大量增加的現(xiàn)象稱(chēng)為“電離”?？諝獗浑婋x的同時(shí)，溫度隨之急劇上升產(chǎn)生電弧，這種放電稱(chēng)為弧光放電?；」夥烹娨话悴恍枰芨叩碾妷海瑢儆诘碗妷捍箅娏鞣烹姟?</p> <p> 弧光放電產(chǎn)生的條件是小間隙和大電流，如果增加間隙或減小電流，電弧將會(huì)消失。 </p> <p> <p> 電弧光是怎樣形成的？ </p> <p> 電弧性短路起火：如將兩電極接觸后再拉開(kāi)建立了電弧，則維持此10mm 長(zhǎng)的電弧只需20V 的電壓。也就是說(shuō)只要先接觸，之后又分開(kāi)，很可能產(chǎn)生局部溫度很高的電弧而成為起火源。按電弧發(fā)生的不同部分可分為帶電導(dǎo)體間的電弧、帶電導(dǎo)體與地之間的電弧和絕緣表面的爬電。 </p> 電弧光保護(hù)裝置全國(guó)招商。</p><div style="width:100%;text-align: center;"><img style="max-width: 640px; max-height: 320px;" alt="北海數(shù)字化弧光保護(hù),弧光保護(hù)" src="https://tyunfile.71360.com/UploadFile/keaton/637255090209277344/1236657.jpg"></div><p> 主動(dòng)保護(hù)有以下兩種常見(jiàn)的可行的方法：1通過(guò)壓力傳感器進(jìn)行監(jiān)測(cè);2通過(guò)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(kāi)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(guò)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?；」鈧鞲衅鞣譃榭煞譃殡娏餍秃凸饫w性（可見(jiàn)光和紫外光）其中支持可見(jiàn)光的弧光傳感器有基頓電氣JD9900B系列弧光傳感器。超穩(wěn)定弧光保護(hù)，廠家直銷(xiāo)。濟(jì)南弧光保護(hù)怎么操作</p><p style="text-indent:25px">高精度弧光保護(hù)，廠家直銷(xiāo)。北海數(shù)字化弧光保護(hù)</p><p style="text-indent:25px">1 弧光保護(hù)**早出現(xiàn)在國(guó)外abb和vamp，但國(guó)內(nèi)百繼電保護(hù)的發(fā)展其實(shí)比國(guó)外快，也更完善，比如國(guó)內(nèi)多采用光纖型光纖傳感器代替早期的電纜型提高絕緣安全，采用紫外探頭代替可見(jiàn)光探頭來(lái)規(guī)避電力巡度檢時(shí)強(qiáng)光手電的誤判等。2 集中和分散式各有優(yōu)劣，早期國(guó)外是分散式的，國(guó)內(nèi)的集中式更多一些，從可靠性角度，集中式只有一個(gè)有源設(shè)備，光專(zhuān)纖和探頭都是無(wú)源，因此更可靠，對(duì)于柜子較多時(shí)，可采用兩臺(tái)集中或一臺(tái)加擴(kuò)屬展模塊的形式接入更多的探測(cè)點(diǎn)，國(guó)內(nèi)的南瑞基頓電氣等弧光保護(hù)都支持這種模式。北海數(shù)字化弧光保護(hù)</p><p style="text-indent:25px">江蘇基頓電氣自動(dòng)化有限公司一直專(zhuān)注于自動(dòng)化設(shè)備、電氣機(jī)械及器材、儀器儀表、電子產(chǎn)品的研發(fā)生、銷(xiāo)售；計(jì)算機(jī)硬件、電氣設(shè)備的技術(shù)研發(fā)、設(shè)計(jì)。電力儀表事業(yè)部主要產(chǎn)品包括：電力儀表系列、智能電動(dòng)機(jī)保護(hù)器系列、開(kāi)關(guān)柜智能操控裝置系列、智慧用電監(jiān)控模塊系列、電量變送器系列，及系統(tǒng)集成系列產(chǎn)品。產(chǎn)品普遍用于冶金、石化、電力、建筑、市政等行業(yè)。，是一家儀器儀表的企業(yè)，擁有自己**的技術(shù)體系。公司目前擁有高技術(shù)人才101~300人人，以不斷增強(qiáng)企業(yè)核心競(jìng)爭(zhēng)力，加快企業(yè)技術(shù)創(chuàng)新，實(shí)現(xiàn)穩(wěn)健生產(chǎn)經(jīng)營(yíng)。公司以誠(chéng)信為本，業(yè)務(wù)領(lǐng)域涵蓋[ "數(shù)顯電力儀表", "操控裝置", "弧光保護(hù)", "微機(jī)綜合保護(hù)" ]，我們本著對(duì)客戶(hù)負(fù)責(zé)，對(duì)員工負(fù)責(zé)，更是對(duì)公司發(fā)展負(fù)責(zé)的態(tài)度，爭(zhēng)取做到讓每位客戶(hù)滿(mǎn)意。公司憑著雄厚的技術(shù)力量、飽滿(mǎn)的工作態(tài)度、扎實(shí)的工作作風(fēng)、良好的職業(yè)道德，樹(shù)立了優(yōu)良的[ "數(shù)顯電力儀表", "操控裝置", "弧光保護(hù)", "微機(jī)綜合保護(hù)" ]形象，贏得了社會(huì)各界的信任和認(rèn)可。</p></p><br /><p>文章來(lái)源地址: http://www.cdcfah.com/cp/681634.html</p></div></div></div></div></div><div id="u7d4i9s" class="page-right twoColRt"><div id="rlsco2u" class="box01 margin10 clearfix"><h3><a href="http://www.cdcfah.com/cp/">猜你喜歡</a></h3><div id="pzr9hrn" class="recomPic likePro"><a href="http://www.cdcfah.com/cp/814588.html"><div><img src="http://tyunfile.71360.com/UpLoadFile/2019/11/1/14/637082168864691056_lgpj_5374157.jpg" alt="福建ZF配件哪家強(qiáng) 信息推薦自業(yè)物資供應(yīng)" class="vcenter" onerror="javascript:this.src='/static/new_net_01/images/nopic.jpg';"></div><p>福建ZF配件哪家強(qiáng) 信息推薦自業(yè)物資供應(yīng)</p></a></div><div id="kjbl83o" class="recomPic likePro"><a 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