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class="current"> 當前位置:<a href="http://www.cdcfah.com/">首頁?<a href="http://www.cdcfah.com/cp/">產(chǎn)品供應</a>?<a href="http://www.cdcfah.com/cp/first-_dgdq/">電工電氣</a>?<a href="http://www.cdcfah.com/cp/second-dgdq_gkxtjzbyb/">工控系統(tǒng)及裝備</a>?<a href="http://www.cdcfah.com/cp/third-gkxtjzbyb_baohuqijq/">保護器</a>?云南弧光保護如何選型歡迎來電江蘇基頓電氣供應</p><div id="bpk3dmi" class="leftbox clearfix"><h1>云南弧光保護如何選型歡迎來電江蘇基頓電氣供應</h1><div id="8e3y7j2" class="proBig"><div id="unedpwd" class="bigimg"><div><p class="pic"><img src="https://tyunfile.71360.com/UploadFile/keaton/637255090208730469/6645876.jpg" class="vcenter" onerror="javascript:this.src='/static/new_net_01/images/nopic.jpg';"></p></div></div><div id="8qzgnea" class="smallimg"><div><p class="pic"><img src="https://tyunfile.71360.com/UploadFile/keaton/637255090208730469/6645876.jpg" class="vcenter" onerror="javascript:this.src='/static/new_net_01/images/nopic.jpg';"></p></div></div></div><div id="xqszzac" 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)品關鍵詞：</span>云南弧光保護如何選型,弧光保護</p><p><span>***更新：</span>2020-07-19 03:17:02</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="uolnulc" 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="wahzvx8" class="page-proshow02"><p class="title">詳細說明</p><div id="qzgievc" class="box"><p><p> 電弧光保護目的是在發(fā)生電弧故障時，云南弧光保護如何選型，通過限制電弧燃燒時間來保護附近工作人員及設備。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。在中低開關柜內部故障保護中，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，云南弧光保護如何選型，*****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)通過檢測開關柜內部發(fā)生故障時發(fā)出的電弧光判斷是否發(fā)生故障，云南弧光保護如何選型。弧光是電弧**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。對于開關柜內部故障保護來講，這種超調整動作性能是**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。弧光保護裝置，可護展。云南弧光保護如何選型</p><div style="width:100%;text-align: center;"><img style="max-width: 640px; max-height: 320px;" alt="云南弧光保護如何選型,弧光保護" src="https://tyunfile.71360.com/UploadFile/keaton/637255090208730469/6645876.jpg"></div><p> 電弧光保護系統(tǒng)作用：電弧光保護系統(tǒng)具有非?？斓膭幼魉俣龋瑢﹂_關柜各單元室的總故障清掉時間可控制在100ms以內。因此，在發(fā)生弧光故障、柜內壓力和溫度急劇增加以前，電弧光保護系統(tǒng)就可以發(fā)出跳閘指令切除供給的短路電流，使設備損壞及人員傷害的損失減到**小。 </p> <p> 對于中低壓開關柜來講，以**快的速度切除故障意味著比較大限度地限制電弧燃燒釋放的能量，其益處是：1）保護附近工作人員免受電弧故障效應的傷害；2）開關柜內部部件的限制到**??；3）很大減少開關設備損壞的維修費用；4）比較大限度地減少用戶停電時間，可盡快恢復生產(chǎn)；5）對于使用年限很長需要進行改造的開關柜，采用電弧光保護可有效延長其使用壽命，從而減少對開關設備的投資費用。 </p> <p> 電弧光保護作為中低壓母線保護，對配電系統(tǒng)還將提供以下益處：1）保護昂貴的主變壓器或廠用變壓器免受巨大的短路電流沖擊而損壞；2）防止波及站用直流系統(tǒng)，避免故障擴大而造成經(jīng)濟損失。德陽弧光保護生產(chǎn)廠家電弧光保護裝置廠家直銷，歡迎來咨詢。</p><div style="width:100%;text-align: center;"><img style="max-width: 640px; max-height: 320px;" alt="云南弧光保護如何選型,弧光保護" src="https://tyunfile.71360.com/UploadFile/keaton/637255090209277344/1236657.jpg"></div><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> <br /> </p> <p> 第一種方法（采用壓力傳感器作為電弧光探測單元）壓力波是裝置內出現(xiàn)電弧故障的效應之一，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壓力峰值。當內部的壓力達到設定值時，電弧監(jiān)測裝置發(fā)出動作指令，控制開關器件動作。但是要預先確定電弧在柜內產(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時間*為1毫秒?；」鈧鞲衅鞣譃榭煞譃殡娏餍秃凸饫w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><p> 電弧光的危害 </p> <p> <br /> </p> <p> 開關設備內部間隔發(fā)生故障而產(chǎn)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> <br /> </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> <br /> </p> <p> 電纜熔毀，電纜護套著火； </p> <p> <br /> </p> <p> 開關設備劇烈振動，使固定元件松脫； </p> <p> <br /> </p> <p> 使上一級變壓器承受近距離短路沖擊，故障電流產(chǎn)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(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，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> <br /> </p> <p> 燃燒產(chǎn)生的有害氣體被人吸入會產(chǎn)生生命危險； </p> <p> <br /> </p> <p> 高溫灼傷皮膚，強光刺傷眼睛 </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)測及防護 </p> <p> <br /> </p> <p> 當?shù)蛪洪_關柜發(fā)生電弧，可以通過三種不同的設計理念保護操作人員和設備的安全： </p> <p> <br /> </p> <p> 改善設備的機械結構，使之能夠承受電弧（被動保護） </p> <p> <br /> </p> <p> 設備安裝限制內部電弧效應的裝置（主動保護） </p> <p> <br /> 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="云南弧光保護如何選型,弧光保護" src="https://tyunfile.71360.com/UploadFile/keaton/637255090210332031/5373647.jpg"></div><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遠多于帶電導體間的電弧火災”。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，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瞬態(tài)過電壓”，此時“芯線上感應的瞬態(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。高性能弧光保護裝置，廠家直銷。綿陽母線弧光保護</p><p style="text-indent:25px">紫外光弧光保護，廠家直銷。云南弧光保護如何選型</p><p> 電力系統(tǒng)中,每年都會有多名電力工程師或電工被電弧擊傷,在電力安全備受重視的***,如何更好地保證人身安全,保證供電系統(tǒng)的穩(wěn)定可靠運行是至關重要的。據(jù)記者了解,我國電力系統(tǒng)中,35kV及以下電壓等級的母線一般未裝設弧光保護。近年來,由于各種原因開關設備被嚴重燒毀,據(jù)統(tǒng)計資料表明,每年每1000臺開關柜就有7臺遭到損壞,故障率0.7%。農(nóng)村配電網(wǎng)的概率更高,達1.2%。,有的甚至發(fā)展成“火燒連營”的***,這些配網(wǎng)***處理不當甚至被擴大發(fā)展為輸電網(wǎng)***,造成重大的經(jīng)濟損失,已引起電力部門的***關注。 </p> <p> 中、低壓母線發(fā)生短路故障時,所產(chǎn)生的電弧光對設備及人員會造成極大的傷害?？偨Y其***原因大多是因為沒有裝設中低壓母線保護,未能快速切除故障造成的,單獨地依賴上一級變壓器的后備保護切除母線短路故障,這樣導致了故障切除時間的延長,加大了設備的損傷程度,破壞嚴重時可能造成***進一步擴大,威脅到系統(tǒng)的穩(wěn)定運行。云南弧光保護如何選型</p><p style="text-indent:25px">江蘇基頓電氣自動化有限公司創(chuàng)立于2019-08-05，是一家生產(chǎn)型公司。公司業(yè)務涵蓋[ "數(shù)顯電力儀表", "操控裝置", "弧光保護", "微機綜合保護" ]等，價格合理，品質有保證。公司注重以質量為中心，以服務為理念，秉持誠信為本的理念，打造儀器儀表質量品牌。公司憑借深厚技術支持，年營業(yè)額度達到3000-5000萬元，并與多家行業(yè)**公司建立了緊密的合作關系。</p></p><br /><p>文章來源地址: http://www.cdcfah.com/cp/645759.html</p></div></div></div></div></div><div id="2myvrct" class="page-right twoColRt"><div id="jd77byq" class="box01 margin10 clearfix"><h3><a 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