昆明弧光保護廠家直銷歡迎來電江蘇基頓電氣供應(yīng)-b2b網(wǎng)站_b2b電子商務(wù)平臺【買產(chǎn)品】-上?？谄蚴称酚邢薰?/title><meta name="description" content="接地故障電弧起火：由于“接地故障發(fā)生的幾率遠大于帶電導體間的短路”，所以“接地故障電弧引起的火災(zāi)遠多于帶電導體間的電弧火災(zāi)”。這是因為“在電氣線路施工中，穿鋼管拉電線時帶電導體絕緣外皮之間并無因相對運動而產(chǎn)生的摩擦，但帶電導體絕緣外皮與鋼管"><meta name="keywords" content="昆明弧光保護廠家直銷,弧光保護"><link rel="canonical" href="http://www.cdcfah.com/"/><meta name="applicable-device" content="pc"><link rel="shortcut icon" href="/static/new_net_01/images/favicon.ico"><link rel="stylesheet" href="/static/new_net_01/css/slick.css" /><link rel="stylesheet" href="/static/new_net_01/css/addnew.css"><link rel="stylesheet" href="/static/new_net_01/css/sidenav.css"><link rel="stylesheet" href="/static/new_net_01/css/style.css" /><link rel="stylesheet" href="/static/new_net_01/css/tab.css"><link rel="stylesheet" href="/static/new_net_01/css/404.css"> <meta name="baidu-site-verification" content="OBVzrC9aaQ" /> <meta http-equiv="Cache-Control" content="no-transform" /> <meta 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href="http://www.cdcfah.com/cp/third-gkxtjzbyb_baohuqijq/">保護器</a>?昆明弧光保護廠家直銷歡迎來電江蘇基頓電氣供應(yīng)</p><div id="f2pjvxo" class="leftbox clearfix"><h1>昆明弧光保護廠家直銷歡迎來電江蘇基頓電氣供應(yīng)</h1><div id="pjv7q38" class="proBig"><div id="ng7qs88" class="bigimg"><div><p class="pic"><img src="https://tyunfile.71360.com/UploadFile/keaton/637255090210332031/5373647.jpg" class="vcenter" onerror="javascript:this.src='/static/new_net_01/images/nopic.jpg';"></p></div></div><div id="os7mta2" class="smallimg"><div><p class="pic"><img src="https://tyunfile.71360.com/UploadFile/keaton/637255090210332031/5373647.jpg" class="vcenter" onerror="javascript:this.src='/static/new_net_01/images/nopic.jpg';"></p></div></div></div><div id="d2c27ib" 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(chǎn)品關(guān)鍵詞：</span>昆明弧光保護廠家直銷,弧光保護</p><p><span>***更新：</span>2021-01-23 17:16:19</p><p><span id="click" >瀏覽次數(shù)：5次</span></p><a rel="nofollow" class="button">聯(lián)系我們</a></div></div><div id="mg2bxel" 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(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: </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="tsu4ud8" class="page-proshow02"><p class="title">詳細說明</p><div id="nmyxeqc" class="box"><p><p> 接地故障電弧起火：由于“接地故障發(fā)生的幾率遠大于帶電導體間的短路”，所以“接地故障電弧引起的火災(zāi)遠多于帶電導體間的電弧火災(zāi)”。這是因為“在電氣線路施工中，穿鋼管拉電線時帶電導體絕緣外皮之間并無因相對運動而產(chǎn)生的摩擦，但帶電導體絕緣外皮與鋼管間的摩擦卻使絕緣摩薄或受損。另外，昆明弧光保護廠家直銷，發(fā)生雷擊時地面上出現(xiàn)瞬變電磁場，它對電氣線路將感應(yīng)瞬態(tài)過電壓”，此時“芯線上感應(yīng)的瞬態(tài)過電壓是基本相同的，而電纜梯架則因接地而為地電壓”，所以，芯線對地的電位差較大。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，而是出現(xiàn)在設(shè)備絕緣表面上的電弧。例如電源插頭的絕緣表面上的一個或多個相線插腳和PE線插腳，它們之間的絕緣表面可能發(fā)生爬電，昆明弧光保護廠家直銷，昆明弧光保護廠家直銷。電弧光保護專業(yè)生產(chǎn)，性能穩(wěn)定，歡迎來電咨詢。昆明弧光保護廠家直銷</p><div style="width:100%;text-align: center;"><img style="max-width: 640px; max-height: 320px;" alt="昆明弧光保護廠家直銷,弧光保護" src="https://tyunfile.71360.com/UploadFile/keaton/637255090210332031/5373647.jpg"></div><p> 1.1 電弧光產(chǎn)生的原因 </p> <p> 引起開關(guān)柜弧光短路故障的原因很多，主要有：絕緣故障、載流回路不良、外來物體的進入、人為操作錯誤、系統(tǒng)改變或故障等。 </p> <p> 1.2 電弧光的能量 </p> <p> 開關(guān)柜發(fā)生內(nèi)部弧光故障產(chǎn)生的短路功率可高達8~60 MW，所產(chǎn)生的能量與電弧的燃燒時間、短路電流的平方值、柜體幾何尺寸以及所使用的材料等因素有關(guān)，其中**主要的因素是短路故障電流及電弧燃燒的時間，電弧能量與有關(guān)電弧燃燒的時間的關(guān)系如圖所示。從圖中可以看出，電弧燃燒持續(xù)時間超過100 ms ，所釋放的能量開始急劇增加，接著各種故障效應(yīng)對開關(guān)設(shè)備的電纜、銅排以及鋼材造成嚴重損壞. </p> <p> <br /> 河北弧光保護代理弧光保護專業(yè)生產(chǎn)廠家，歡迎來電咨詢。</p><div style="width:100%;text-align: center;"><img style="max-width: 640px; max-height: 320px;" alt="昆明弧光保護廠家直銷,弧光保護" src="https://tyunfile.71360.com/UploadFile/keaton/637255090208691406/971244.jpg"></div><p> 在智能樓宇供配電系統(tǒng)中，低壓無功功率補償具有重要意義。但同時，無功功率補償裝置也是供配電系統(tǒng)中一個事故易發(fā)、多發(fā)的環(huán)節(jié)。本文通過一次具體事故，分析捕捉這個環(huán)節(jié)中的不安全因素，為及時制定規(guī)避、預(yù)防和應(yīng)急處理對策提供正確的依據(jù)。1引言某日，北京市東城區(qū)某大廈B3南變配電室一臺。在高低壓變配電系統(tǒng)中，無功補償電容器柜是一個事故的易發(fā)、多發(fā)環(huán)節(jié)。同時，這種設(shè)備的事故原因分析難度較大。從現(xiàn)象上看，弧光短路無非是過電壓或過電流造成的。但導致電容器過電壓或過電流的因素卻比電阻性或電感性電路復(fù)雜的多。這主要是由于：在容性負載電路發(fā)生短路故障瞬間（ms級）的狀態(tài)，往往是由多種因素聯(lián)合作用的結(jié)果。而其中有些因素是難以定量、難以測量、難以再現(xiàn)的。某日，北京市海淀區(qū)某大廈B1變配電室變壓器二次側(cè)boom起火。大火燒毀了五面配電柜。但電容器組boom起火的原因終無定論。圖1-4是“”事故的現(xiàn)場照片。圖1boom起火的電容器組圖2被大火燒毀的配電柜圖3被大火燒毀的電容器柜圖4被大火燒毀的電纜線2事故過程某日，北京市東城區(qū)某大廈（以下簡稱大廈）B3南變配電室兩持證電工對3＃變壓器二次側(cè)：一人監(jiān)護。</p><p> 電弧光保護目的是在發(fā)生電弧故障時，通過限制電弧燃燒時間來保護附近工作人員及設(shè)備。電弧保護首先必須檢測故障電弧，然后才能切斷流過的故障電流。在中低開關(guān)柜內(nèi)部故障保護中，一般是通過跳開斷路器來切除故障使故障電弧熄滅。電弧燃燒時伴隨著光、聲及電磁波形式的輻射。通過分析可見光、聲波、紅外線或無線電頻率的輻射可以檢測到電弧的存在，甚至連由電弧產(chǎn)生的壓力波也已經(jīng)用來檢測它的存在。然而，*****使用的方法還是通過檢測可見光來實現(xiàn)。 </p> <p> 電弧光保護系統(tǒng)通過檢測開關(guān)柜內(nèi)部發(fā)生故障時發(fā)出的電弧光判斷是否發(fā)生故障?；」馐请娀?*明顯且變化**快的特征物理量，因而電弧光保護具有超高速的動作性能，整套保護的動作時間可保證在幾毫秒以內(nèi)。對于開關(guān)柜內(nèi)部故障保護來講，這種超調(diào)整動作性能是**重要的。為了避免外界光干擾可能引發(fā)系統(tǒng)的誤跳閘，在實際應(yīng)用中往往還引入過流閉鎖信號，即：只有同時檢測到弧光信號及過流動作信號才發(fā)出跳閘指令切除故障，從而進一步提高保護系統(tǒng)動作的可靠性。電弧光保護裝置**。</p><div style="width:100%;text-align: center;"><img style="max-width: 640px; max-height: 320px;" alt="昆明弧光保護廠家直銷,弧光保護" src="https://tyunfile.71360.com/UploadFile/keaton/637255090210449219/7963429.jpg"></div><p> 電弧光的監(jiān)測及防護 </p> <p> 當?shù)蛪洪_關(guān)柜發(fā)生電弧，可以通過三種不同的設(shè)計理念保護操作人員和設(shè)備的安全： </p> <p> 改善設(shè)備的機械結(jié)構(gòu)，使之能夠承受電?。ū粍颖Ｗo） </p> <p> 設(shè)備安裝限制內(nèi)部電弧效應(yīng)的裝置（主動保護） </p> <p> 設(shè)備安裝限流斷路器 </p> <p> 主動保護有以下兩種常見的、可行的方法：1）通過壓力傳感器進行監(jiān)測;2）通過弧光傳感器進行監(jiān)測 </p> <p> 第一種方法（采用壓力傳感器作為電弧光探測單元）壓力波是裝置內(nèi)出現(xiàn)電弧***的效應(yīng)之一，它將在電弧出現(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壓力峰值。當內(nèi)部的壓力達到設(shè)定值時，電弧監(jiān)測裝置發(fā)出動作指令，控制開關(guān)器件動作。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> 第二種方法（采用光纖傳感器作為電弧光探測單元）弧光監(jiān)測器的操作邏輯如下：電弧現(xiàn)象會產(chǎn)生強烈的光輻射，因此柜體內(nèi)出現(xiàn)的弧光可以被弧光傳感器探測到。當弧光監(jiān)控系統(tǒng)探測到故障，會發(fā)出動作信號給斷路器。這種方法的探測反應(yīng)時間*為1毫秒。開關(guān)柜弧光保護，廠家直銷。南寧弧光保護OEM</p><p style="text-indent:25px">紫外光弧光保護探頭，專業(yè)生產(chǎn)。昆明弧光保護廠家直銷</p><p> 1.概述 </p> <p> 中、低壓母線在發(fā)生短路故障、運行人員誤操作和誤入帶電間隔等原因產(chǎn)生的電弧光對設(shè)備及人員造成的危害極大。電弧光使開關(guān)設(shè)備內(nèi)的壓力和溫度迅速升高，如不及時切除，容易造成電纜護套著火和母線熔毀，并且產(chǎn)生大量有害氣體傷害呼吸系統(tǒng)、高溫灼傷皮膚和刺傷眼睛。短路故障時，開關(guān)設(shè)備劇烈震動使固定件松動脫落、甚至導致開關(guān)柜造成人員傷亡。中低壓母線系統(tǒng)中一般不配置**的快速母線保護，而是依賴上一級的后備過流保護切除母線故障，過流保護有延時，這就導致故障切除時間較長，增加了設(shè)備的損害程度。電弧光保護系統(tǒng)原理簡單、動作迅速可靠，能夠有效減輕電弧光對設(shè)備和人身的傷害。昆明弧光保護廠家直銷</p><p style="text-indent:25px">江蘇基頓電氣自動化有限公司主要經(jīng)營范圍是儀器儀表，擁有一支專業(yè)技術(shù)團隊和良好的市場口碑。江蘇基頓電氣致力于為客戶提供良好的數(shù)顯電力儀表，操控裝置，弧光保護，微機綜合保護，一切以用戶需求為中心，深受廣大客戶的歡迎。公司秉持誠信為本的經(jīng)營理念，在儀器儀表深耕多年，以技術(shù)為先導，以自主產(chǎn)品為重點，發(fā)揮人才優(yōu)勢，打造儀器儀表良好品牌。江蘇基頓電氣憑借創(chuàng)新的產(chǎn)品、專業(yè)的服務(wù)、眾多的成功案例積累起來的聲譽和口碑，讓企業(yè)發(fā)展再上新高。</p></p><br /><p>文章來源地址: http://www.cdcfah.com/cp/2977483.html</p></div></div></div></div></div><div id="lzbahya" class="page-right twoColRt"><div id="7mmd38z" class="box01 margin10 clearfix"><h3><a href="http://www.cdcfah.com/cp/">猜你喜歡</a></h3><div id="mgi7k38" 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配件哪家強信息推薦自業(yè)物資供應(yīng)</p></a></div><div id="rvmoxjk" class="recomPic likePro"><a 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