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</span><div id="zyse7zy" class="searchbox"><div id="mkrykwp" class="searchLt"><div id="88kjvht" class="tabs"><a href="JavaScript:;" data-type="product" class="active">產(chǎn)品</a><a href="JavaScript:;" data-type="member" class="">公司</a><a href="JavaScript:;" data-type="article" class="">資訊</a><a href="JavaScript:;" data-type="exhibition" class="">展會</a></div><div id="39vhdpg" class="clearfix searchWrap"><div id="on8qbnz" class="searchInput"><input type="text" name="keywords" placeholder="請輸入搜索關鍵詞" id="kd"><a href="javascript:void(0)" class="searchBtn" id="search">搜索</a></div></div></div></div></header><nav class="navbox"><div id="fj984ub" class="container"><ul><li id = "index_index"><a href="http://www.cdcfah.com/"><span>首頁</span></a></li><li id = "index_company"><a ><span>企業(yè)名錄</span></a></li><li id = "index_product"><a href="http://www.cdcfah.com/cp/"><span>產(chǎn)品供應</span></a></li><li id = "index_news"><a href="http://www.cdcfah.com/zx/"><span>新聞資訊</span></a></li><li id = 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onerror="javascript:this.src='/static/new_net_01/images/nopic.jpg';"></p></div></div><div id="t7ct8zb" class="smallimg"><div><p class="pic"><img src="https://tyunfile.71360.com/UploadFile/keaton/637255090210488281/9985773.jpg" class="vcenter" onerror="javascript:this.src='/static/new_net_01/images/nopic.jpg';"></p></div></div></div><div id="8tz2ci7" 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>石家莊弧光保護報價,弧光保護</p><p><span>***更新：</span>2020-07-12 16:38:07</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="83fw23w" 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="hdel7t8" class="page-proshow02"><p class="title">詳細說明</p><div id="hkbnenp" class="box"><p><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(jù)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(jù)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，石家莊弧光保護報價，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，石家莊弧光保護報價，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(jīng)濟效益，石家莊弧光保護報價，為理想的中壓母線保護解決方案。紫外光弧光保護探頭，專業(yè)生產(chǎn)。石家莊弧光保護報價</p><div style="width:100%;text-align: center;"><img style="max-width: 640px; max-height: 320px;" alt="石家莊弧光保護報價,弧光保護" src="https://tyunfile.71360.com/UploadFile/keaton/637255090210488281/9985773.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。武漢弧光保護選型電弧光保護裝置廠家直銷。</p><div style="width:100%;text-align: center;"><img style="max-width: 640px; max-height: 320px;" alt="石家莊弧光保護報價,弧光保護" src="https://tyunfile.71360.com/UploadFile/keaton/637255090210332031/5373647.jpg"></div><p> 2.系統(tǒng)的構成 </p> <p> 系統(tǒng)主要由主控單元、電流單元、弧光單元、弧光傳感器、電源模塊、及連接各部件之間的光纖和數(shù)據(jù)線組成。 </p> <p> (1)主控單元用于管理、控制整套電弧光保護系統(tǒng)。它檢測故障電流和弧光信號，并對收到的兩種信號進行處理、判斷，在滿足跳閘的條件時，發(fā)出跳閘指令切除故障。 </p> <p> 主控單元有4個數(shù)據(jù)輸入接口，共可接入24個弧光單元或電流單元；輸出接口包括4路快速跳閘輸出和6路常規(guī)繼電器跳閘輸出共有4+16個弧光檢測口。當弧光信號輸入超過16個時。推薦采用弧光單元。主控單元根據(jù)弧光單元或者弧光傳感器輸送的信號，能準確地判斷故障點位置。 </p> <p> (2)電流單元用于檢測過電流信號，ABC三相電流均可檢測，電流單元檢測到的信號通過光纖和數(shù)據(jù)線傳到主控單元，主控單元依據(jù)設定的邏輯判斷是否發(fā)出跳閘指令。 </p> <p> (3)每個弧光單元包含10個弧光檢測接口，這些接口均為光纖接口，用于連接弧光傳感器?；」鈧鞲衅鞯母泄鈴姸葎t可以通過弧光單元面板上的電位計來調節(jié)設定，可以從10KLux調節(jié)至50Klux?；」鈫卧獧z測到的信號通過光纖和數(shù)據(jù)線傳到主控單元，主控單元依據(jù)設定的邏輯判斷是否發(fā)出跳閘指令。 </p> <p> (4)弧光傳感器是探測弧光的感應原件 </p> <p> (5)電源模塊工作電源為交直流兩用 </p> <p> <br /> </p><p> 開關柜電弧耐受時間與電弧光保護動作時間 </p> <p> IEC298《交流金屬封閉開關設備與控制設備》附錄AA中規(guī)定的內部燃弧測試時間是0.1秒。目前市場上銷售的開關柜基本上是按照IEC298標準生產(chǎn)的，也就是說開關柜可以承受的電弧燃燒時間為0.1秒。電弧光保護裝置全國招商。</p> 弧光保護動作時間主要由兩部分組成：裝置動作時間和開關動作時間?；」獗Ｗo裝置的動作時間根據(jù)各廠商的動作原理不同（光電探頭或光纖探頭等）一般在1~10毫秒，開關動作時間（參考GE公司VB1—13.8真空斷路器）一般在50~60毫秒。故電弧光保護動作時間小于開關柜電弧耐受時間，不會對開關柜造成嚴重損傷。<div style="width:100%;text-align: center;"><img style="max-width: 640px; max-height: 320px;" alt="石家莊弧光保護報價,弧光保護" src="https://tyunfile.71360.com/UploadFile/keaton/637255090210332031/5312785.jpg"></div><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。專業(yè)設計生產(chǎn)電弧光保護裝置。洛陽弧光保護探頭</p><p style="text-indent:25px">弧光保護裝置廠家直銷，全國招商。石家莊弧光保護報價</p><p> 帶電導體間的電弧性短路起火：短路起火時有兩種可能，其一是兩導體（如相線與中性線）接觸時因短路電流產(chǎn)生的高溫，使接觸點金屬熔化，之后金屬熔化成團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遠大于上述金屬性短路的起火危險。 </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“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，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。石家莊弧光保護報價</p><p style="text-indent:25px">江蘇基頓電氣自動化有限公司是一家自動化設備、電氣機械及器材、儀器儀表、電子產(chǎn)品的研發(fā)生、銷售；計算機硬件、電氣設備的技術研發(fā)、設計。電力儀表事業(yè)部主要產(chǎn)品包括：電力儀表系列、智能電動機保護器系列、開關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，致力于成為客戶業(yè)務創(chuàng)新、儀器儀表可信賴的合作伙伴。江蘇基頓電氣擁有一支經(jīng)驗豐富、技術創(chuàng)新的專業(yè)研發(fā)團隊，以高度的專注和執(zhí)著為客戶提供[ "數(shù)顯電力儀表", "操控裝置", "弧光保護", "微機綜合保護" ]。公司擁有多年的行業(yè)經(jīng)驗，每年以銷售收入達到3000-5000萬元，如果您想了解更多產(chǎn)品信息，請通過頁面上的電話聯(lián)系我們。江蘇基頓電氣始終關注儀器儀表行業(yè)。海納百川，有容乃大，國內外同行的智慧都是促使我們前行的力量。</p></p><br /><p>文章來源地址: http://www.cdcfah.com/cp/569579.html</p></div></div></div></div></div><div id="7uaceq2" class="page-right twoColRt"><div id="vzbnkbn" class="box01 margin10 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