河南弧光保護(hù)OEM 誠信經(jīng)營江蘇基頓電氣供應(yīng)-b2b網(wǎng)站_b2b電子商務(wù)平臺(tái)【買產(chǎn)品】-上?？谄蚴称酚邢薰?/title><meta name="description" content="帶電導(dǎo)體間的電弧性短路起火：短路起火時(shí)有兩種可能，其一是兩導(dǎo)體（如相線與中性線）接觸時(shí)因短路電流產(chǎn)生的高溫，使接觸點(diǎn)金屬熔化，之后金屬熔化成團(tuán)收縮而脫離接觸的過程，這種情況下可能建立電弧。又如線路絕緣水平嚴(yán)重下降，雷電產(chǎn)生的瞬態(tài)過電壓或電網(wǎng)"><meta name="keywords" content="河南弧光保護(hù)OEM,弧光保護(hù)"><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 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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>河南弧光保護(hù)OEM,弧光保護(hù)</p><p><span>***更新：</span>2020-07-08 17:31:53</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="8b7oqsj" 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="n3xzrya" class="page-proshow02"><p class="title">詳細(xì)說明</p><div id="gaugipb" class="box"><p><p> 帶電導(dǎo)體間的電弧性短路起火：短路起火時(shí)有兩種可能，其一是兩導(dǎo)體（如相線與中性線）接觸時(shí)因短路電流產(chǎn)生的高溫，使接觸點(diǎn)金屬熔化，之后金屬熔化成團(tuán)收縮而脫離接觸的過程，這種情況下可能建立電弧。又如線路絕緣水平嚴(yán)重下降，雷電產(chǎn)生的瞬態(tài)過電壓或電網(wǎng)故障產(chǎn)生的暫態(tài)過電壓都可能擊穿劣化的線路絕緣而建立電弧。電弧性短路的起火危險(xiǎn)遠(yuǎn)大于上述金屬性短路的起火危險(xiǎn)。 </p> <p> <br /> </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)椤半姎饩€路施工中，穿鋼管拉電線時(shí)帶電導(dǎo)體絕緣外皮之間并無因相對(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，對(duì)電氣線路將感應(yīng)瞬態(tài)過電壓”此時(shí)“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(duì)地的電位差較大，河南弧光保護(hù)OEM，河南弧光保護(hù)OEM。從摩損和電位差大兩方面分析，河南弧光保護(hù)OEM，接地故障電弧起火率自然偏高。專業(yè)生產(chǎn)電弧光保護(hù)裝置，歡迎來電咨詢。河南弧光保護(hù)OEM</p><div style="width:100%;text-align: center;"><img style="max-width: 640px; max-height: 320px;" alt="河南弧光保護(hù)OEM,弧光保護(hù)" src="https://tyunfile.71360.com/UploadFile/keaton/637255090210332031/5312785.jpg"></div><p> 國產(chǎn)的弧光保護(hù)比進(jìn)口的更適用，國產(chǎn)的把主控單元、電流單元和copy弧光采集單元集成在一起，安裝方便，可靠性高，進(jìn)口的分幾個(gè)單元主要是為了自己的利益。其實(shí)UTU和RIZNER兩個(gè)產(chǎn)品實(shí)質(zhì)上是一樣的，面板不同而已。 </p> <p> 目前南京、保定的生產(chǎn)廠家都是采用一體式的裝置，只有早起仿ABB、VAMP、UTU的廠家按照進(jìn)口產(chǎn)品的結(jié)構(gòu)模式做的，各個(gè)單元之間通過電纜連接，人為增加了節(jié)點(diǎn)，反而降低了設(shè)備的可靠性。zhidao </p> <p> 弧光保護(hù)的技術(shù)發(fā)源地在芬蘭。ABB的REA系列，Vamp的321,221系列，在國內(nèi)都有比較多的應(yīng)用，還有Arcteq、UTU 也都有較成熟的弧光保護(hù)產(chǎn)品。 </p> <p> 電弧是放電過程中發(fā)生的一種現(xiàn)象，當(dāng)兩點(diǎn)之間的電壓超過其工頻絕緣強(qiáng)度極限時(shí)就會(huì)發(fā)生。當(dāng)適當(dāng)?shù)臈l件出現(xiàn)時(shí)，一個(gè)攜帶著電流的等離子產(chǎn)生，直到電源側(cè)的保護(hù)設(shè)備斷開才會(huì)消失?？諝庠谕ǔl件是很好的絕緣體，但由于溫度的升高或者其他外部因素的作用，其化學(xué)和物理特性發(fā)生改變時(shí)，它可能變成通電的導(dǎo)體。無錫弧光保護(hù)圖紙電弧光保護(hù)專業(yè)生產(chǎn)，性能穩(wěn)定，歡迎來電咨詢。</p><div style="width:100%;text-align: center;"><img style="max-width: 640px; max-height: 320px;" alt="河南弧光保護(hù)OEM,弧光保護(hù)" src="https://tyunfile.71360.com/UploadFile/keaton/637255090210449219/7963429.jpg"></div><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)離子被電場加速，在移動(dòng)的過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?。 </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建立了電弧，則維持此10mm 長的電弧只需20V 的電壓。也就是說只要先接觸，之后又分開，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> </p><p> 以下數(shù)據(jù)表明了一個(gè)電弧所具有的危險(xiǎn)性: </p> <p> 壓力:已估測(cè)，在一個(gè)相距60cm的20kA故障電弧，一個(gè)人所抵受到的壓力為225kg;這種突如其來的壓力會(huì)對(duì)耳朵造成長久的傷害。 </p> <p> 溫度:電弧的溫度可以達(dá)到約為7000-8000°C </p> <p> 聲音:電弧發(fā)出的聲音強(qiáng)度高達(dá)160db(***聲發(fā)出的爆破聲*為130db)。 </p> <p> <br /> </p> <p> 折疊電弧光的危害 </p> <p> 開關(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> 電弧光中心溫度(相當(dāng)于太陽表面溫度的2~4倍，約為10000~20000°C)過高導(dǎo)致銅排、鋁排熔毀氣化; </p> <p> 電纜熔毀，電纜護(hù)套著火; </p> <p> 開關(guān)設(shè)備劇烈振動(dòng)，使固定元件松脫; </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> 故障產(chǎn)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(zhì)，若波及站內(nèi)直流系統(tǒng)導(dǎo)致全站直流失電，將造成無法彌補(bǔ)的重大損失; </p> <p> 燃燒產(chǎn)生的0氣體被人吸入會(huì)產(chǎn)生生命危險(xiǎn); </p> <p> 高溫灼傷皮膚，強(qiáng)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 /> 高性能弧光保護(hù)裝置，廠家直銷。</p><div style="width:100%;text-align: center;"><img style="max-width: 640px; max-height: 320px;" alt="河南弧光保護(hù)OEM,弧光保護(hù)" src="https://tyunfile.71360.com/UploadFile/keaton/637255090210332031/5373647.jpg"></div><p> 電弧光保護(hù)目的是在發(fā)生電弧故障時(shí)，通過限制電弧燃燒時(shí)間來保護(hù)附近工作人員及設(shè)備。電弧保護(hù)首先必須檢測(cè)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(hù)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(shí)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(cè)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(cè)它的存在。然而，*****使用的方法還是通過檢測(cè)可見光來實(shí)現(xiàn)。 </p> <p> 電弧光保護(hù)系統(tǒng)通過檢測(cè)開關(guān)柜內(nèi)部發(fā)生故障時(shí)發(fā)出的電弧光判斷是否發(fā)生故障。弧光是電弧**明顯且變化**快的特征物理量，因而電弧光保護(hù)具有超高速的動(dòng)作性能，整套保護(hù)的動(dòng)作時(shí)間可保證在幾毫秒以內(nèi)。對(duì)于開關(guān)柜內(nèi)部故障保護(hù)來講，這種超調(diào)整動(dòng)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(shí)際應(yīng)用中往往還引入過流閉鎖信號(hào)，即：只有同時(shí)檢測(cè)到弧光信號(hào)及過流動(dòng)作信號(hào)才發(fā)出跳閘指令切除故障，從而進(jìn)一步提高保護(hù)系統(tǒng)動(dòng)作的可靠性。弧光保護(hù)裝置，弧光保護(hù)傳感器專業(yè)生產(chǎn)，歡迎來電咨詢。德陽母線弧光保護(hù)</p><p style="text-indent:25px">弧光保護(hù)裝置，可護(hù)展。河南弧光保護(hù)OEM</p><p> 主動(dòng)保護(hù)有以下兩種常見的、可行的方法: </p> <p> 1) 通過壓力傳感器進(jìn)行監(jiān)測(cè) </p> <p> 2) 通過弧光傳感器進(jìn)行監(jiān)測(cè) </p> <p> 第一種方法(采用壓力傳感器作為電弧光探測(cè)單元) </p> <p> 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(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> 第二種方法(采用光纖傳感器作為電弧光探測(cè)單元) </p> <p> 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。河南弧光保護(hù)OEM</p><p style="text-indent:25px">江蘇基頓電氣自動(dòng)化有限公司是一家自動(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)。的公司，創(chuàng)建于2019-08-05。公司自2019-08-05成立以來，投身于[ "數(shù)顯電力儀表", "操控裝置", "弧光保護(hù)", "微機(jī)綜合保護(hù)" ]，是儀器儀表的主力軍。依托效率源扎實(shí)的技術(shù)積累、完善的產(chǎn)品體系、深厚的行業(yè)基礎(chǔ)，目前擁有員工數(shù)101~300人，年?duì)I業(yè)額達(dá)到3000-5000萬元。江蘇基頓電氣始終關(guān)注自身，在風(fēng)云變化的時(shí)代，我們對(duì)自身的建設(shè)毫不懈怠，高度的專注與執(zhí)著使我們?cè)谛袠I(yè)的從容而自信。</p></p><br /><p>文章來源地址: http://www.cdcfah.com/cp/538507.html</p></div></div></div></div></div><div id="osmoamo" class="page-right twoColRt"><div id="f2asuhe" 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