大同弧光保護(hù)多少錢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(tái)【買產(chǎn)品】-上?？谄蚴称酚邢薰?/title><meta name="description" content="電弧光保護(hù)系統(tǒng)具備傳統(tǒng)低壓保護(hù)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(chǔ)數(shù)據(jù)。電弧光保護(hù)是一種快速可靠的**母線保護(hù)系統(tǒng)，采用檢測(cè)弧光和過流雙判據(jù)原理，具有原理簡單、動(dòng)作可靠迅速、對(duì)變電站一次設(shè)備無特殊要求、適"><meta name="keywords" content="大同弧光保護(hù)多少錢"><link rel="canonical" href="http://m.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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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(hù)器</a>?大同弧光保護(hù)多少錢歡迎來電江蘇基頓電氣供應(yīng)</p><div id="nwyaxj9" class="leftbox clearfix"><h1>大同弧光保護(hù)多少錢歡迎來電江蘇基頓電氣供應(yīng)</h1><div id="l2fp2fm" class="proBig"><div id="hb3rtv9" class="bigimg"><div><p class="pic"><img src="https://tyunfile.71360.com/UploadFile/keaton/637255090208583984/8274785.jpg" class="vcenter" onerror="javascript:this.src='/static/new_net_01/images/nopic.jpg';"></p></div></div><div id="qookzlf" class="smallimg"><div><p class="pic"><img src="https://tyunfile.71360.com/UploadFile/keaton/637255090208583984/8274785.jpg" class="vcenter" onerror="javascript:this.src='/static/new_net_01/images/nopic.jpg';"></p></div></div></div><div id="rfcelxr" 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>大同弧光保護(hù)多少錢</p><p><span>***更新：</span>2020-05-31 03:19:10</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="dnk2wtx" 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="p2z7h7r" class="page-proshow02"><p class="title">詳細(xì)說明</p><div id="pzgyace" class="box"><p><p> 電弧光保護(hù)系統(tǒng)具備傳統(tǒng)低壓保護(hù)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(chǔ)數(shù)據(jù)。電弧光保護(hù)是一種快速可靠的**母線保護(hù)系統(tǒng)，采用檢測(cè)弧光和過流雙判據(jù)原理，具有原理簡單、動(dòng)作可靠迅速、對(duì)變電站一次設(shè)備無特殊要求、適應(yīng)于各種運(yùn)行方式、且在各種運(yùn)行方式下保護(hù)不需要切換等優(yōu)點(diǎn)，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(hù)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(dāng)兩電極間電壓升高時(shí)，電極**近處空氣中的正負(fù)離子被電場(chǎng)加速，移動(dòng)的過程中與其它空氣分子碰撞產(chǎn)生新的離子，大同弧光保護(hù)多少錢，這種離子大量增加的現(xiàn)象稱為電離”空氣被電離的同時(shí)，溫度隨之急劇上升產(chǎn)生電弧，這種放電稱為弧光放電，大同弧光保護(hù)多少錢?；」夥烹娨话悴恍枰芨叩碾妷海瑢儆诘碗妷捍箅娏鞣烹?。 </p> <p> <br /> </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> <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，大同弧光保護(hù)多少錢。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> <br /> </p><div style="width:100%;text-align: center;"><img style="max-width: 640px; max-height: 320px;" alt="大同弧光保護(hù)多少錢" src="https://tyunfile.71360.com/UploadFile/keaton/637255090208583984/8274785.jpg"></div><p> 系統(tǒng)優(yōu)點(diǎn) </p> <p> (1)動(dòng)作迅速可靠 </p> <p> 跳閘回路采用了快速繼電器技術(shù)，確保保護(hù)系統(tǒng)在1ms內(nèi)發(fā)出跳閘信號(hào)，加上斷路器動(dòng)作時(shí)間(35-60ms)，使開關(guān)柜內(nèi)部電弧光故障總切除時(shí)間控制在60ms以內(nèi)，而且在外觀上無明顯損壞。繼電保護(hù)裝置包括測(cè)量、計(jì)算、自檢、動(dòng)作等時(shí)間累計(jì)約44ms, 加上斷路器動(dòng)作時(shí)間，差動(dòng)保護(hù)和無時(shí)限電流速斷保護(hù)動(dòng)作，故障切除時(shí)間約100ms。即使電流速斷保護(hù)比弧光保護(hù)多40ms,查看弧光危害示意圖，電纜已經(jīng)燃燒。如果是帶時(shí)限電流速斷保護(hù)延時(shí)100ms、過電流Ⅰ段延時(shí)300ms,已經(jīng)達(dá)到柜體燃燒甚至的可能。 </p><div style="width:100%;text-align: center;"><img style="max-width: 640px; max-height: 320px;" alt="大同弧光保護(hù)多少錢" src="https://tyunfile.71360.com/UploadFile/keaton/637255090209853516/2408474.jpg"></div><p> 電力系統(tǒng)中,每年都會(huì)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(yùn)行是至關(guān)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(jí)的母線一般未裝設(shè)弧光保護(hù)。近年來,由于各種原因開關(guān)設(shè)備被嚴(yán)重?zé)龤?據(jù)統(tǒng)計(jì)資料表明,每年每1000臺(tái)開關(guān)柜就有7臺(tái)遭到損壞,故障率0.7%。農(nóng)村配電網(wǎng)的概率更高,達(dá)1.2%。,有的甚至發(fā)展成“火燒連營”的***,這些配網(wǎng)***處理不當(dāng)甚至被擴(kuò)大發(fā)展為輸電網(wǎng)***,造成重大的經(jīng)濟(jì)損失,已引起電力部門的***關(guān)注。 </p> <p> 中、低壓母線發(fā)生短路故障時(shí),所產(chǎn)生的電弧光對(duì)設(shè)備及人員會(huì)造成極大的傷害?？偨Y(jié)其***原因大多是因?yàn)闆]有裝設(shè)中低壓母線保護(hù),未能快速切除故障造成的,單獨(dú)地依賴上一級(jí)變壓器的后備保護(hù)切除母線短路故障,這樣導(dǎo)致了故障切除時(shí)間的延長,加大了設(shè)備的損傷程度,破壞嚴(yán)重時(shí)可能造成***進(jìn)一步擴(kuò)大,威脅到系統(tǒng)的穩(wěn)定運(yùn)行。 </p><div style="width:100%;text-align: center;"><img style="max-width: 640px; max-height: 320px;" alt="大同弧光保護(hù)多少錢" src="https://tyunfile.71360.com/UploadFile/keaton/637255090208583984/7334798.jpg"></div></p><br /><p>文章來源地址: http://m.cdcfah.com/cp/92861.html</p></div></div></div></div></div><div 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