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<script>var V_PATH="/";window.onerror=function(){ return true; };</script> </head><body> <h1><a href="http://m.cdcfah.com/">六月丁香婷婷亚洲中文字幕,欧美精品高清一区二区蜜芽,尤物92午夜福利视频,精品视频一区二区三区在线观看</a></h1> <div style="position:fixed;left:-9000px;top:-9000px;"><object id="qgqbi"></object><delect id="qgqbi"><sub id="qgqbi"><dl id="qgqbi"></dl></sub></delect><track id="qgqbi"></track><tr id="qgqbi"></tr><video id="qgqbi"></video><xmp id="qgqbi"><span id="qgqbi"></span></xmp><span id="qgqbi"></span><strong id="qgqbi"><em id="qgqbi"><sup id="qgqbi"><progress id="qgqbi"></progress></sup></em></strong><dl id="qgqbi"><small id="qgqbi"></small></dl><wbr id="qgqbi"></wbr><noscript id="qgqbi"></noscript><tr id="qgqbi"></tr><track id="qgqbi"><dl id="qgqbi"></dl></track><label id="qgqbi"><em id="qgqbi"></em></label><tbody id="qgqbi"></tbody><blockquote id="qgqbi"></blockquote><dfn id="qgqbi"><center id="qgqbi"></center></dfn><sub id="qgqbi"></sub><u id="qgqbi"></u><noframes id="qgqbi"></noframes><menu 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href="http://m.cdcfah.com/">首頁?<a href="http://m.cdcfah.com/cp/">產品供應</a>?<a href="http://m.cdcfah.com/cp/first-_dgdq/">電工電氣</a>?<a href="http://m.cdcfah.com/cp/second-dgdq_gkxtjzbyb/">工控系統(tǒng)及裝備</a>?<a href="http://m.cdcfah.com/cp/third-gkxtjzbyb_baohuqijq/">保護器</a>?河北電弧光保護歡迎來電江蘇基頓電氣供應</p><div id="xbdkmta" class="leftbox clearfix"><h1>河北電弧光保護歡迎來電江蘇基頓電氣供應</h1><div id="dwiam32" class="proBig"><div id="xbdk3x3" class="bigimg"><div><p class="pic"><img src="https://tyunfile.71360.com/UploadFile/keaton/637255090210449219/7963429.jpg" class="vcenter" onerror="javascript:this.src='/static/new_net_01/images/nopic.jpg';"></p></div></div><div id="dmyari8" class="smallimg"><div><p class="pic"><img src="https://tyunfile.71360.com/UploadFile/keaton/637255090210449219/7963429.jpg" class="vcenter" onerror="javascript:this.src='/static/new_net_01/images/nopic.jpg';"></p></div></div></div><div id="hlnz8pz" 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>江蘇省</p><p><span>包裝要求：</span><span style="color: #f30;"></span></p><p><span>產品關鍵詞：</span>河北電弧光保護,弧光保護</p><p><span>***更新：</span>2020-07-20 17:23:12</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="gfmd33s" class="rightbox"><h3>公司基本資料信息</h3><p style="border:0;"><a rel="nofollow">江蘇基頓電氣自動化有限公司</a></p><p><span>聯(lián)系人：</span>高經理</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>網址: </span></p><p><span>手機: </span>0510-85027009</p><p><span>地址: </span>長安鎮(zhèn)友誼路28號</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="isz7nz8" class="page-proshow02"><p class="title">詳細說明</p><div id="e3x3wdp" class="box"><p><p style="text-indent:25px">電弧光保護和快速滅弧器電弧光保護，顧名思義，就是當發(fā)生電弧光故障時保護人員和電氣設備。目前市面上電弧光保護產品種類繁多，容易給我們造成混淆，典型產品就是“快速滅弧器”。其實“快速滅弧器”只是電弧光保護家族的一個分支，和傳統(tǒng)的電弧光保護還是存在本質上的區(qū)別。他們的本質區(qū)別就在于動作方式上。傳統(tǒng)的電弧光保護動作結果是切除上級斷路器，而快速滅弧器的動作結果則是將電氣一次主回路進行短路接地。如某品牌的“快速滅弧器”：由于快速滅弧器會對電氣一次回路甚至主變造成一定的損傷，而且該類產品存在“一家獨大”等情況，市面上的應用率不是很高。 <div style="background:#000000;opacity:0.22;position:absolute !important;left:0px !important;top:0px ，河北電弧光保護，河北電弧光保護!important;border:0px none !important;padding:0px ，河北電弧光保護!important;z-index:100000;height:0px;width:0px;display:none;cursor:auto;"> </div>專業(yè)生產電弧光保護裝置，歡迎來電咨詢。河北電弧光保護</p><div style="width:100%;text-align: center;"><img style="max-width: 640px; max-height: 320px;" alt="河北電弧光保護,弧光保護" src="https://tyunfile.71360.com/UploadFile/keaton/637255090210449219/7963429.jpg"></div><p> 電弧光在中、低壓開關柜內產生的主要因素是什么？ </p> <p> 使用了不良性能的導電體 </p> <p> 絕緣材料的損壞（包括：裂痕，進水，老化等） </p> <p> 人體或其他物品意外地接觸到帶電的物品 </p> <p> 操作過程中的失誤或者設計或安裝錯誤 </p> <p> 元件損壞，沒有良好的維修和保養(yǎng)設備 </p> <p> 過電壓 </p> <p> 電網結構的改變（系統(tǒng)容量增大、電纜應用增多） </p> <p> 電弧光的危害 </p> <p> 開關設備內部間隔發(fā)生故障而產生的電弧光會造成開關設備中的壓力和溫度迅速增加，如不及時切除、將可能造成以下重大危害： </p> <p> 電弧光中心溫度（相當于太陽表面溫度的2~4倍，約為10000~20000°C）過高導致銅排、鋁排熔毀氣化； </p> <p> 電纜熔毀，電纜護套著火； </p> <p> 開關設備劇烈振動，使固定元件松脫； </p> <p> 使上一級變壓器承受近距離短路沖擊，故障電流產生的電動力可能導致變壓器繞組變形引起匝間短路； </p> <p> <br /> </p> <p> 故障產生的弧光沖擊波以300m/s的速度爆發(fā)，可摧毀途中的任何物質，若波及站內直流系統(tǒng)導致全站直流失電，將造成無法彌補的重大損失； </p> <p> 燃燒產生的0氣體被人吸入會產生生命危險； </p> <p> 高溫灼傷皮膚，強光刺傷眼睛 </p> <p> 爆破音振損傷耳膜，肺臟； </p> <p> 碎片飛射，造成人員傷亡。 </p> <p> <br /> 貴陽弧光保護廠家直銷智能電弧光保護裝置**，廠家直銷，歡迎咨詢。</p><div style="width:100%;text-align: center;"><img style="max-width: 640px; max-height: 320px;" alt="河北電弧光保護,弧光保護" src="https://tyunfile.71360.com/UploadFile/keaton/637255090209277344/1236657.jpg"></div><p> 電弧光保護與母線保護 </p> <p> 電弧光保護是動作時間**短的母線保護。 </p> <p> 而為什么其他母線保護的動作時間那么長，因為“保護配合”。電弧光保護只要滿足“電弧”和“過流”等判據就可立即發(fā)出跳閘指令。而其他母線保護（參考西門子公司7SD和7SJ62綜保裝置）當滿足“過流”判據后還必須等待下級負載的“無過流匯報”后才可以發(fā)出跳閘指令。因為下級負載短路和母線短路都會造成進線開關“過流”，如果下級負載短路應該讓下級負載開關來切除，母線短路則由母線進線開關來切除。電弧光保護猶如手持尚方寶劍，而其他母線保護則就像一個團隊，不敢輕舉妄動。 </p> <p> 總上所述，采用電弧光母線保護可以在現(xiàn)有開關柜的電弧耐受時間標準以內切除弧光短路故障，從而比較大限度地保護了附近工作人員，使開關裝置等配電設備免受損壞，很大減少了設備維修費用及維修故障所需的停電時間，因而具有明顯的經濟效益，為理想的中壓母線保護解決方案。 </p><p style="text-indent:25px">弧光保護系統(tǒng)利用弧光和電流雙重判據,快速可靠地切除中、低壓開關柜母線上及配電設備發(fā)生的弧光短路故障,彌補現(xiàn)有開關柜母線保護的空白。它可以減少開關及上游變壓器設備的損害,縮小***障范圍;避免或減輕工作人員在發(fā)生電弧短路故障時所造成的傷害;保護中、低壓開關設備免受嚴重損壞,防止火災的發(fā)生;保護昂貴的主變壓器或廠用變壓器免受短路電流沖擊而損壞;比較大限度地減少用戶的停電時間。在***時間內切除母線和開關柜內部故障,盡可能地縮短電氣設備的恢復供電時間;延長現(xiàn)有開關設備的使用壽命,推遲更換開關設備的投資。確保電氣設備的安全,以及全廠的安全、可靠運行。中低壓弧光保護，專業(yè)提供，歡迎來電咨詢。</p><div style="width:100%;text-align: center;"><img style="max-width: 640px; max-height: 320px;" alt="河北電弧光保護,弧光保護" src="https://tyunfile.71360.com/UploadFile/keaton/637255090208691406/971244.jpg"></div><p style="text-indent:25px">弧光保護在我國電力網領域運行現(xiàn)狀及未來系統(tǒng)遠景，我們降下文章以下介紹中逐一說明：繼電保護領域繼微機保護技術飛躍發(fā)展以來,紫外光弧光保護技術可堪稱**突出的技術進步。采用光纖電弧光保護系統(tǒng),從光纖弧光傳感器檢測到故障電弧光,到出口報警跳閘時間小于4ms,遠遠快于傳統(tǒng)的繼電保護裝置。一、電弧光產生原理：通常情況下氣體呈絕緣狀態(tài),一旦發(fā)生電弧放電現(xiàn)象,氣體就會變成導電體。當氣體原子受到外界大能量的作用,使電子有可能脫離其原子核的束縛而成為自由電子時,氣體呈帶電的狀態(tài),我們把這一過程叫做氣體的電離。形成電弧時的電壓和電流根據電源阻抗、導電體的間距以及環(huán)境中物質成分的不同而有巨大的差異。高壓弧光保護**，廠家直銷，歡迎來電咨詢。高精度弧光保護怎么看</p><p style="text-indent:25px">耐用型弧光保護，廠家直銷，歡迎咨詢。河北電弧光保護</p><p> 電弧光保護系統(tǒng)具備傳統(tǒng)低壓保護裝置的許多功能，并能夠記錄故障事件和波形，從而為故障的分析提供重要的基礎數(shù)據。電弧光保護是一種快速可靠的**母線保護系統(tǒng)，采用檢測弧光和過流雙判據原理，具有原理簡單、動作可靠迅速、對變電站一次設備無特殊要求、適應于各種運行方式、且在各種運行方式下保護不需要切換等優(yōu)點，為目前發(fā)電廠、變電站、工業(yè)及商業(yè)配電系統(tǒng)母線保護理想的解決方案。 </p> <p> <br /> </p> <p> 什么是弧光放電？ </p> <p> <br /> </p> <p> 當兩電極間電壓升高時，電極**近處空氣中的正負離子被電場加速，移動的過程中與其它空氣分子碰撞產生新的離子，這種離子大量增加的現(xiàn)象稱為電離”空氣被電離的同時，溫度隨之急劇上升產生電弧，這種放電稱為弧光放電。弧光放電一般不需要很高的電壓，屬于低電壓大電流放電。 </p> <p> <br /> </p> <p> 弧光放電產生的條件是小間隙和大電流，如果增加間隙或減小電流，電弧將會消失。 </p> <p> <br /> </p> <p> 電弧光是怎樣形成的 </p> <p> <br /> </p> <p> 電弧性短路起火：如將兩電極接觸后再拉開建立了電弧，則維持此10mm長的電弧只需20V電壓。也就是說只要先接觸，之后又分開，很可能產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體間的電弧、帶電導體與地之間的電弧和絕緣表面的爬電。 </p> <p> <br /> 河北電弧光保護</p><p style="text-indent:25px">江蘇基頓電氣自動化有限公司成立于2019-08-05，注冊資本：3000-5000萬元。該公司生產型的公司。公司致力于為客戶提供安全、質量有保障的質量產品及服務，是一家有限責任公司企業(yè)。公司始終堅持客戶需求***的原則，致力于提供高質量的[ "數(shù)顯電力儀表", "操控裝置", "弧光保護", "微機綜合保護" ]。江蘇基頓電氣將以真誠的服務、創(chuàng)新的理念、***的產品，為彼此贏得全新的未來！</p></p><br /><p>文章來源地址: http://m.cdcfah.com/cp/663370.html</p></div></div></div></div></div><div id="hq2kwdp" class="page-right twoColRt"><div id="s7vkb33" class="box01 margin10 clearfix"><h3><a href="http://m.cdcfah.com/cp/">猜你喜歡</a></h3><div id="x3hjvce" class="recomPic likePro"><a href="http://m.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配件哪家強信息推薦自業(yè)物資供應" class="vcenter" 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