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href="http://www.cdcfah.com/cp/third-gkxtjzbyb_baohuqijq/">保護器</a>?開封弧光保護外殼誠信經(jīng)營江蘇基頓電氣供應(yīng)</p><div id="jn8za7s" class="leftbox clearfix"><h1>開封弧光保護外殼誠信經(jīng)營江蘇基頓電氣供應(yīng)</h1><div id="pt23ipr" class="proBig"><div id="3tu3ew2" class="bigimg"><div><p class="pic"><img src="https://tyunfile.71360.com/UploadFile/keaton/637255090210332031/5312785.jpg" class="vcenter" onerror="javascript:this.src='/static/new_net_01/images/nopic.jpg';"></p></div></div><div id="kyctfef" class="smallimg"><div><p class="pic"><img src="https://tyunfile.71360.com/UploadFile/keaton/637255090210332031/5312785.jpg" class="vcenter" onerror="javascript:this.src='/static/new_net_01/images/nopic.jpg';"></p></div></div></div><div id="gk2izgx" 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>開封弧光保護外殼,弧光保護</p><p><span>***更新：</span>2020-07-01 12:28:20</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="gaeawi7" 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(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="ui8nubn" class="page-proshow02"><p class="title">詳細說明</p><div id="etselcj" class="box"><p><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，開封弧光保護外殼，開封弧光保護外殼、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，開封弧光保護外殼、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 /> 紫外光弧光保護，廠家直銷。開封弧光保護外殼</p><div style="width:100%;text-align: center;"><img style="max-width: 640px; max-height: 320px;" alt="開封弧光保護外殼,弧光保護" src="https://tyunfile.71360.com/UploadFile/keaton/637255090210332031/5312785.jpg"></div><p> 開關(guān)柜和控制柜內(nèi)電弧的發(fā)生 </p> <p> 主配電柜或大型的電氣設(shè)備(如變壓器或發(fā)電機)附近短路能量高而且有故障產(chǎn)生時的電壓也很高。 </p> <p> 在柜體內(nèi)形成電弧的過程可分為四個階段: </p> <p> 壓縮階段:電弧占據(jù)了整個空氣空間，由于持續(xù)的釋放能量產(chǎn)生過熱，導(dǎo)致對流和輻射，保留在柜內(nèi)的空氣被加熱，在整個初級階段不同區(qū)域的溫度和壓力值不一樣。 </p> <p> 擴展階段:從這一瞬間開始，內(nèi)部壓力增加，由于過熱的空氣開始流動而形成一個空洞。在這個階段其壓力達到比較大值，并因為熱空氣的釋放而開始減弱。 </p> <p> 發(fā)射階段:由于電弧能量的持續(xù)釋放，幾乎所有的空氣均被一個緩和但恒定的壓力擠壓出去。 </p> <p> 發(fā)熱階段:在驅(qū)逐出空氣后，柜內(nèi)的溫度幾乎達到電弧的溫度。***階段就由此開始，直至熄滅。此時，所有金屬和絕緣體在受到產(chǎn)生的氣體、霧和溶蝕物質(zhì)顆粒的侵蝕后，已融為一體了。 </p> <p> 當(dāng)電弧出現(xiàn)在非常封閉的設(shè)備環(huán)境時，可能不會出現(xiàn)上述某些階段或者只有較少的影響;然而，在電弧的周圍，會形成壓力波、并導(dǎo)致溫度的上升。高精度弧光保護系統(tǒng)電弧光保護裝置源頭廠家。</p><div style="width:100%;text-align: center;"><img style="max-width: 640px; max-height: 320px;" alt="開封弧光保護外殼,弧光保護" src="https://tyunfile.71360.com/UploadFile/keaton/637255090210449219/7963429.jpg"></div><p> 廠用/配電中壓開關(guān)柜為全廠輔機/供電系統(tǒng)的供電樞紐。在發(fā)生內(nèi)部故障時，是否能迅速地切除故障，對全廠/配電系統(tǒng)的安全運行至關(guān)重要。但是，按目前的保護方案，存在以下幾個問題： </p> <p> ① 中壓母線尚沒有配置任何專門的保護; 而是由進線開關(guān)的相關(guān)后備保護來兼顧的; </p> <p> ② 進線開關(guān)與出線開關(guān)的保護需要相互配合:一般速斷保護延時的級差至少為300ms，甚至500ms ; </p> <p> ③ 過流保護的配合級差更是長達1 – 2秒。 </p> <p> 所以，廠用/配電系統(tǒng)中壓母線上所發(fā)生的任何故障都至少要延時切除。換句話說，現(xiàn)有的廠用中壓母線能在**早時間切除故障的保護還是個空白?？墒牵覀冎灰约幼⒁?，就會不難發(fā)現(xiàn)不論是中壓開關(guān)母線的上游還是下游的諸多電氣設(shè)備無一沒有配有快速保護。相比之下，我們恐怕很難有充分的理由來說明，中壓母線的安全性可靠性應(yīng)該受到這樣的懈怠。鑒于中壓母線的重要地位，任何故障的延時切除，都是我們極為不愿意看到的狀況。因為開關(guān)柜內(nèi)的各種故障，其短路電流所產(chǎn)生的電弧及其大量的高溫，使柜內(nèi)氣體急劇膨脹，可在極短的時間內(nèi)達到頂峰，嚴重危及人身和設(shè)備安全。 </p> <p> <br /> </p><p> 監(jiān)測及防護 </p> <p> 當(dāng)?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)，使之能夠承受電弧(被動保護) </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> 這三種方案(可聯(lián)合使用)已在工業(yè)領(lǐng)域得到快速的發(fā)展，并為一些主要的低壓開關(guān)控制柜制造商普遍使用。 </p> <p> 其中限制內(nèi)部電弧效應(yīng)的裝置是一種主動保護裝置，它含有機電/電子裝置，較被動保護裝置更為復(fù)雜。 </p> <p> 主動保護即通過安裝限制電弧的裝置，以防止內(nèi)部出現(xiàn)故障電弧。電弧光保護監(jiān)控系統(tǒng)，歡迎來電咨詢。</p> <div style="background:#000000;opacity:0.22;position:absolute !important;left:0px !important;top:0px !important;border:0px none !important;padding:0px !important;z-index:100000;height:0px;width:0px;display:none;cursor:auto;"> </div><div style="width:100%;text-align: center;"><img style="max-width: 640px; max-height: 320px;" alt="開封弧光保護外殼,弧光保護" src="https://tyunfile.71360.com/UploadFile/keaton/637255090209277344/1236657.jpg"></div><p> 目**80伏/1千伏/3千伏/6千伏/10千伏/35千伏開關(guān)柜中沒有**的母線主保護,但在國外電力行業(yè)已經(jīng)普及95%以上;國內(nèi)采用變壓器過流保護用于母線后備保護,理論上必須延時300~500毫秒,實際上動作時間可能長達1.5~2秒,起不到對母線的真正保護,并且使變壓器低壓側(cè)絕緣有較大的結(jié)構(gòu)性損壞,所以目前的母線后備保護是有缺點的 </p> <p> 從弧光保護設(shè)計的系統(tǒng)可靠性來看,變壓器、進線、饋線都有主保護,唯獨母線沒有**的主保護,我們認為母線應(yīng)該增加**主保護。雖然母線故障出現(xiàn)概率較低,但一旦出現(xiàn)將損失慘重。因此,從技術(shù)、設(shè)計方面建議配置母線**主保護弧光保護,以確保操作人員的人身安全及系統(tǒng)的安全、穩(wěn)定運行。光電式電弧光保護，廠家直銷，歡迎咨詢。高精度弧光保護系統(tǒng)</p><p style="text-indent:25px">母線弧光保護廠家直銷。開封弧光保護外殼</p><p> 2.系統(tǒng)的構(gòu)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(dāng)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(zhǔn)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(shè)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。弧光傳感器的感光強度則可以通過弧光單元面板上的電位計來調(diào)節(jié)設(shè)定，可以從10KLux調(diào)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(shè)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(yīng)原件 </p> <p> (5)電源模塊工作電源為交直流兩用 </p> <p> <br /> 開封弧光保護外殼</p><p style="text-indent:25px">江蘇基頓電氣自動化有限公司創(chuàng)建于2019-08-05，注冊資金 3000-5000萬元，辦公設(shè)施齊全，辦公環(huán)境優(yōu)越，已***實行網(wǎng)絡(luò)化辦公，**提高了速度和效率。在江蘇基頓電氣近多年發(fā)展歷史，公司旗下現(xiàn)有品牌基頓電氣等。公司以用心服務(wù)為**價值,希望通過我們的專業(yè)水平和不懈努力,將自動化設(shè)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(shè)備的技術(shù)研發(fā)、設(shè)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(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)。等業(yè)務(wù)進行到底。自公司成立以來，一直秉承“以質(zhì)量求生存，以信譽求發(fā)展”的經(jīng)營理念，始終堅持以客戶的需求和滿意為**，為客戶提供質(zhì)量的[ "數(shù)顯電力儀表", "操控裝置", "弧光保護", "微機綜合保護" ]，從而使公司不斷發(fā)展壯大。</p></p><br /><p>文章來源地址: http://www.cdcfah.com/cp/458154.html</p></div></div></div></div></div><div id="fulsj2q" class="page-right twoColRt"><div id="78zqxeq" class="box01 margin10 clearfix"><h3><a href="http://www.cdcfah.com/cp/">猜你喜歡</a></h3><div id="2evctfr" class="recomPic likePro"><a href="http://www.cdcfah.com/cp/814588.html"><div><img 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