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class="proBig"><div id="8k3zw3w" class="bigimg"><div><p class="pic"><img src="https://tyunfile.71360.com/UploadFile/keaton/637255090208691406/971244.jpg" class="vcenter" onerror="javascript:this.src='/static/new_net_01/images/nopic.jpg';"></p></div></div><div id="fjgnkgs" class="smallimg"><div><p class="pic"><img src="https://tyunfile.71360.com/UploadFile/keaton/637255090208691406/971244.jpg" class="vcenter" onerror="javascript:this.src='/static/new_net_01/images/nopic.jpg';"></p></div></div></div><div id="vpwdkwt" 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>陜西弧光保護哪家質(zhì)量好,弧光保護</p><p><span>***更新：</span>2020-07-24 20:09:35</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="bp2pb2x" 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="887rtk8" class="page-proshow02"><p class="title">詳細說明</p><div id="3qhy73l" class="box"><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(guān)重要的。據(jù)記者了解,我國電力系統(tǒng)中,35kV及以下電壓等級的母線一般未裝設弧光保護。近年來,由于各種原因開關(guān)設備被嚴重燒毀,據(jù)統(tǒng)計資料表明,每年每1000臺開關(guān)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%。，陜西弧光保護哪家質(zhì)量好,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(guān)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。總結(jié)其***原因大多是因為沒有裝設中低壓母線保護，陜西弧光保護哪家質(zhì)量好,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，陜西弧光保護哪家質(zhì)量好,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。電弧光保護裝置廠家直銷。陜西弧光保護哪家質(zhì)量好</p><div style="width:100%;text-align: center;"><img style="max-width: 640px; max-height: 320px;" alt="陜西弧光保護哪家質(zhì)量好,弧光保護" src="https://tyunfile.71360.com/UploadFile/keaton/637255090208691406/971244.jpg"></div><p> <p> 電力系統(tǒng)由于各種的短路原因可引起弧光，弧光會以300m/s的速度爆發(fā)，摧毀途中的任何物質(zhì)。只要系統(tǒng)中不斷電，弧光就會一直存在。 </p> <p> 弧光保護裝置是**近幾年隨著光電技術(shù)的發(fā)展而發(fā)展起來的一種新型保護，是以電流和弧光為主要判據(jù)，與傳統(tǒng)保護相比增加了弧光（光強）這一判據(jù)。適用于35KV變電站、中低壓開關(guān)柜中，主要解決由于弧光短路引發(fā)的中低壓母線故障。 </p> <p> 開關(guān)柜中采用電弧光保護裝置可降低電弧光短路故障對于設備的損害，避免變壓器因近距離母線故障造成損壞，延長變壓器的使用壽命，縮短電弧光故障切除時間，避免波及站內(nèi)直流系統(tǒng)造成重大損失，減少因電弧光故障造成設備停運的時間，更快地恢復供電。 </p> </p> <p> <br /> 孝感弧光保護測控電弧光保護裝置**。</p><div style="width:100%;text-align: center;"><img style="max-width: 640px; max-height: 320px;" alt="陜西弧光保護哪家質(zhì)量好,弧光保護" src="https://tyunfile.71360.com/UploadFile/keaton/637255090208730469/6645876.jpg"></div><p> 有人提倡在低壓柜內(nèi)安裝弧光保護裝置，低壓柜內(nèi)一旦發(fā)生短路故障，弧光傳感器能立馬檢測到弧光信號，動作于低壓斷路器，時間會比傳統(tǒng)的通過檢測電流信號動作于低壓斷路器短，這樣的說法有道理嗎？低壓柜內(nèi)與中壓柜內(nèi)安裝弧光保護裝置有何區(qū)別呢？先聽聽大家怎么看，稍后我也會給出我的看法 </p> <p> <br /> </p> <p> 本帖***由 bzp4891 于 2016-5-19 12:02 編輯 </p> <p> 1、首先動作時間是否能保證在***擴大前切除電源？這個不清楚 </p> <p> -----這個有時間可以保證，而且這個時間確實很短，一般廠家通過實際驗證后給出斷路器與弧光保護裝置在故障情況下動作的時間； </p> <p> 2、圖中是固定分割或抽屜柜，安裝在動力電纜室內(nèi)？這里發(fā)生短路的幾率很小，除非連接不可靠，端子布置不合理，按照這種檢測，抽屜或分隔內(nèi)和饋出線側(cè)發(fā)生的弧光短路***也無法及時切斷電源。這種檢測方式適用于固定柜。 </p> <p> ----弧光傳感器**合適的位置我認為在主母線室內(nèi)，用于主母線發(fā)生短路故障情況下切斷主開關(guān)以防止***擴大化，如果非要安裝在饋線柜例如抽屜柜或固定分隔柜的電纜室，一是安裝的傳感器的數(shù)量很多成本難以承受，二是如果抽屜回路的某一個回路發(fā)生，傳感器的檢測會不會誤動作，跳閘沒有發(fā)生故障的回路； </p> <p> <br /> </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(diào)節(jié)設定，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 /> 弧光保護裝置，可護展。</p><div style="width:100%;text-align: center;"><img style="max-width: 640px; max-height: 320px;" alt="陜西弧光保護哪家質(zhì)量好,弧光保護" src="https://tyunfile.71360.com/UploadFile/keaton/637255090209277344/1236657.jpg"></div><p style="text-indent:25px">1 弧光保護**早出現(xiàn)在國外abb和vamp，但國內(nèi)百繼電保護的發(fā)展其實比國外快，也更完善，比如國內(nèi)多采用光纖型光纖傳感器代替早期的電纜型提高絕緣安全，采用紫外探頭代替可見光探頭來規(guī)避電力巡度檢時強光手電的誤判等。2 集中和分散式各有優(yōu)劣，早期國外是分散式的，國內(nèi)的集中式更多一些，從可靠性角度，集中式只有一個有源設備，光專纖和探頭都是無源，因此更可靠，對于柜子較多時，可采用兩臺集中或一臺加擴屬展模塊的形式接入更多的探測點，國內(nèi)的南瑞基頓電氣等弧光保護都支持這種模式。超穩(wěn)定弧光保護，廠家直銷。陜西弧光保護哪家質(zhì)量好</p><p style="text-indent:25px">紫外光弧光保護，廠家直銷。陜西弧光保護哪家質(zhì)量好</p><p> 開關(guān)柜內(nèi)的發(fā)生短路弧光的功率可高達100MW，電弧燃燒所產(chǎn)生的能量與電弧的燃燒時間及短路電流變化值呈幾何倍增長，燃燒產(chǎn)生的高溫、高壓將會逐步摧毀元器件、銅排以及成列的開關(guān)柜，高明亮的弧光和有害氣體對人體也有巨大的傷害。如左圖的電弧光危害示意圖所示，保護裝置動作時間不能超過20ms，否則會產(chǎn)生不可修復的器件損壞，從而延長故障修復時間。電弧光的燃弧時間長短和對設備造成的損壞程度的評估如下所示 </p> <p> 35ms:沒有明顯損壞，一般可以在檢驗絕緣電阻后繼續(xù)投入使用 </p> <p> 100ms:損壞較小，在開關(guān)柜再次投入運行以前需要進行清潔或某些小的修理 </p> <p> 500ms：設備損壞嚴重，必須更換部分設備才可再次投入使用。陜西弧光保護哪家質(zhì)量好</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，是一家專注自動化設備、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(shù)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(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。唯才是舉，唯能是用：擁有優(yōu)秀人才101~300人和，是實現(xiàn)企業(yè)戰(zhàn)略目標的基礎，是企業(yè)持續(xù)發(fā)展的動力。公司業(yè)務范圍主要包括：[ "數(shù)顯電力儀表", "操控裝置", "弧光保護", "微機綜合保護" ]等。公司奉行顧客至上、質(zhì)量為首、的經(jīng)營宗旨，深受客戶好評。公司憑著雄厚的技術(shù)力量、飽滿的工作態(tài)度、扎實的工作作風、良好的職業(yè)道德，樹立了優(yōu)良的[ "數(shù)顯電力儀表", "操控裝置", "弧光保護", "微機綜合保護" ]形象，贏得了社會各界的信任和認可。</p></p><br /><p>文章來源地址: http://www.cdcfah.com/cp/699478.html</p></div></div></div></div></div><div id="b32l342" class="page-right twoColRt"><div id="x7zfsov" class="box01 margin10 clearfix"><h3><a href="http://www.cdcfah.com/cp/">猜你喜歡</a></h3><div id="auwyf3d" class="recomPic likePro"><a href="http://www.cdcfah.com/cp/814588.html"><div><img src="http://tyunfile.71360.com/UpLoadFile/2019/11/1/14/637082168864691056_lgpj_5374157.jpg" alt="福建ZF配件哪家強信息推薦自業(yè)物資供應" 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