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href="http://www.cdcfah.com/cp/third-gkxtjzbyb_qtgkxtjzbdn/">其他工控系統(tǒng)及裝備</a>?四川原裝弧光保護(hù)裝置歡迎來(lái)電上海麥哥思電氣供應(yīng)</p><div id="st38ehl" class="leftbox clearfix"><h1>四川原裝弧光保護(hù)裝置歡迎來(lái)電上海麥哥思電氣供應(yīng)</h1><div id="icmyv8p" class="proBig"><div id="ap89uwd" class="bigimg"><div><p class="pic"><img src="https://tyunfile.71360.com/UploadFile/shmgsdq/637244451984931641/5567434.jpg" class="vcenter" onerror="javascript:this.src='/static/new_net_01/images/nopic.jpg';"></p></div></div><div id="kzolnu3" class="smallimg"><div><p class="pic"><img src="https://tyunfile.71360.com/UploadFile/shmgsdq/637244451984931641/5567434.jpg" class="vcenter" onerror="javascript:this.src='/static/new_net_01/images/nopic.jpg';"></p></div></div></div><div id="33sy2eo" 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>上海市</p><p><span>包裝要求：</span><span style="color: #f30;"></span></p><p><span>產(chǎn)品關(guān)鍵詞：</span>四川原裝弧光保護(hù)裝置,弧光保護(hù)裝置</p><p><span>***更新：</span>2021-01-26 18:16:15</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="mbtldkm" class="rightbox"><h3>公司基本資料信息</h3><p style="border:0;"><a rel="nofollow">上海麥哥思電氣有限公司</a></p><p><span>聯(lián)系人：</span>高先生</p><p><span>郵箱: </span>945506508@qq.com</p><p><span>電話: </span>18916582772</p><p><span>傳真: </span>021_33592772</p><p><span>網(wǎng)址: </span></p><p><span>手機(jī): </span>021-33592771</p><p><span>地址: </span>元江路5500號(hào)第1幢</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="vkr8l8q" class="page-proshow02"><p class="title">詳細(xì)說(shuō)明</p><div id="2h8jvce" class="box"><p><p style="text-indent:25px">問(wèn)：電弧光是怎樣形成的？答：電弧性短路起火：如將兩電極接觸后再拉開(kāi)建立了電弧，四川原裝弧光保護(hù)裝置，則維持此10mm 長(zhǎng)的電弧只需20V 的電壓。也就是說(shuō)只要先接觸，之后又分開(kāi)，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。（1）帶電導(dǎo)體間的電弧性短路起火：前邊講到短路起火時(shí)指出有兩種可能，其一是兩導(dǎo)體（如相線與中性線）接觸時(shí)因短路電流產(chǎn)生的高溫，使接觸點(diǎn)金屬熔化，之后金屬熔化成團(tuán)收縮而脫離接觸的過(guò)程，四川原裝弧光保護(hù)裝置，在這種情況下可能建立電弧?！坝秩缇€路絕緣水平嚴(yán)重下降，四川原裝弧光保護(hù)裝置，雷電產(chǎn)生的瞬態(tài)過(guò)電壓或電網(wǎng)故障產(chǎn)生的暫態(tài)過(guò)電壓都可能擊穿劣化的線路絕緣而建立電弧?！薄半娀⌒远搪返钠鸹鹞ｋU(xiǎn)遠(yuǎn)大于上述金屬性短路的起火危險(xiǎn)。”弧光保護(hù)裝置推薦上海麥哥思電氣。四川原裝弧光保護(hù)裝置</p><div style="width:100%;text-align: center;"><img style="max-width: 640px; max-height: 320px;" alt="四川原裝弧光保護(hù)裝置,弧光保護(hù)裝置" src="https://tyunfile.71360.com/UploadFile/shmgsdq/637244451984931641/5567434.jpg"></div><p> 開(kāi)關(guān)柜內(nèi)安裝弧光傳感器是否會(huì)存在盲區(qū)？答：弧光傳感器在沒(méi)有障礙物的情況下以其探頭為球心可以探測(cè)7m范圍內(nèi)的弧光信號(hào)，其探測(cè)角度為300度。在有限的開(kāi)關(guān)柜空間里弧光故障瞬間的光強(qiáng)度會(huì)達(dá)到幾萬(wàn)甚至十幾萬(wàn)Lux。所以，一般在開(kāi)關(guān)柜的一個(gè)倉(cāng)內(nèi)安裝弧光傳感器完全足以檢測(cè)區(qū)域內(nèi)的所有弧光信號(hào)，不存在檢測(cè)盲區(qū)。為什么電弧光保護(hù)系統(tǒng)推薦使用光纖線傳輸信號(hào)？答：電弧光保護(hù)系統(tǒng)使用光纖傳輸，抗電磁干擾性強(qiáng)。RIZNER光纖（HFBR—EUS）使用單芯塑性纖維光纖，易于安裝和使用，不易折斷。當(dāng)使用該光纖時(shí)，不需要特殊保護(hù)護(hù)套或者其他保護(hù)設(shè)備。光纖可選擇標(biāo)準(zhǔn)長(zhǎng)度或者由客戶選擇任意長(zhǎng)度。光纖末端聯(lián)結(jié)有光傳感器以過(guò)濾環(huán)境光源。傳感器由一個(gè)光纖適配器和散射過(guò)濾器組成。光纖確保了電弧光保護(hù)系統(tǒng)非常小的響應(yīng)時(shí)間。切除時(shí)間是減小故障破壞范圍的關(guān)鍵因素：跳閘時(shí)間越短，破壞越小。整個(gè)跳閘時(shí)間由電弧光保護(hù)系統(tǒng)跳閘時(shí)間和斷路器脫扣時(shí)間共同決定。四川原裝弧光保護(hù)裝置高質(zhì)量弧光保護(hù)裝置麥哥思電氣。</p><div style="width:100%;text-align: center;"><img style="max-width: 640px; max-height: 320px;" alt="四川原裝弧光保護(hù)裝置,弧光保護(hù)裝置" src="https://tyunfile.71360.com/UploadFile/shmgsdq/637244451982783203/890605.jpg"></div><p style="text-indent:25px">中、低壓開(kāi)關(guān)柜內(nèi)電弧光產(chǎn)生的主要原因是什么？答：引起開(kāi)關(guān)柜弧光短路故障的原因很多，一般分為以下5類： (1) 絕緣故障。主要是柜中絕緣材料爬距不足，未滿足加強(qiáng)絕緣要求，在臟污環(huán)境、天氣潮濕下發(fā)生絕緣故障。另一方面，由于絕緣材料材質(zhì)****，運(yùn)行時(shí)間年限較長(zhǎng)，一些開(kāi)關(guān)柜在強(qiáng)磁場(chǎng)電場(chǎng)作用下絕緣老化，也可能造成絕緣損壞而導(dǎo)致故障。 (2) 載流回路不良。如由于一些接頭截面不夠，緊固螺栓松動(dòng)，手車柜觸頭接觸不良，在大電流流過(guò)時(shí)引起發(fā)熱、起火，進(jìn)而引起相間、相對(duì)地?fù)舸┑取?(3) 外來(lái)物體進(jìn)入。如小動(dòng)物(老鼠等)進(jìn)入開(kāi)關(guān)柜內(nèi)部，或維修人員在工作完成后將工具遺留在開(kāi)關(guān)柜內(nèi)。 (4) 人為操作錯(cuò)誤。如走錯(cuò)間隔、誤操作、忘記對(duì)工作區(qū)域進(jìn)行接地和驗(yàn)電等。 (5) 系統(tǒng)方面。如系統(tǒng)容量增大、接地方式的改變、電纜應(yīng)用的增多、保護(hù)及自控裝置配置不當(dāng)、系統(tǒng)諧振過(guò)電壓等。</p><p style="text-indent:25px">電弧光保護(hù)系統(tǒng)是否有相關(guān)標(biāo)準(zhǔn)？答：電弧光保護(hù)技術(shù)于2004年作為一種**的保護(hù)被引入中國(guó)市場(chǎng)，隨著應(yīng)用的逐漸增多，在2016年6月1日、2016年9月1日和2016年12月1日，我國(guó)分別頒布了弧光保護(hù)的行業(yè)標(biāo)準(zhǔn)DL/T 1504-2016《弧光保護(hù)裝置通用技術(shù)條件》、國(guó)家標(biāo)準(zhǔn)GB/T 14598.302-2016 《弧光保護(hù)裝置技術(shù)要求》和能源行業(yè)標(biāo)準(zhǔn)NB/T42076-2016《弧光保護(hù)裝置選用導(dǎo)則》。為了使電力操作人員的人身傷亡及設(shè)備損害降到****，近兩年電弧光保護(hù)在各行各業(yè)的配電系統(tǒng)都得到了更****的業(yè)主和設(shè)計(jì)院認(rèn)可、設(shè)計(jì)和應(yīng)用?；」獗Ｗo(hù)裝置質(zhì)量口碑麥哥思電氣。</p><div style="width:100%;text-align: center;"><img style="max-width: 640px; max-height: 320px;" alt="四川原裝弧光保護(hù)裝置,弧光保護(hù)裝置" src="https://tyunfile.71360.com/UploadFile/shmgsdq/637244451985136719/8810575.jpg"></div><p> 公用測(cè)控屏柜的作用公用測(cè)控屏主要用于除**間隔以外的模擬量（如母線電壓）、開(kāi)關(guān)量（如GPS裝置）的采集。還可以通過(guò)串口通訊采集各裝置的內(nèi)部信息，這樣一個(gè)保護(hù)的信息基本可以做到一覽無(wú)余了，想投退保護(hù)都有記錄。發(fā)電機(jī)保護(hù)屏的主要特點(diǎn)發(fā)電機(jī)保護(hù)屏作為一個(gè)完整系統(tǒng)，具有的電源，CPU及的操作回路，完成對(duì)電站對(duì)應(yīng)間隔的保護(hù)、測(cè)量、控制等功能，各裝置在軟、硬件設(shè)計(jì)上是完全的，不依賴通訊網(wǎng)。發(fā)電機(jī)保護(hù)測(cè)控屏的主要用途發(fā)電機(jī)保護(hù)屏集保護(hù)、測(cè)量、通訊于一身、真正意義上實(shí)現(xiàn)無(wú)人值守。主要適用于中小型水電站和火電站項(xiàng)目，用于對(duì)水輪發(fā)電機(jī)組和汽輪發(fā)電機(jī)組的控制與保護(hù)。線路保護(hù)測(cè)控屏由哪幾部分組成？線路保護(hù)測(cè)控裝置、分段保護(hù)測(cè)控裝置、短線路光纖縱差保護(hù)裝置、備用電源自投裝置、柜體、電氣開(kāi)元件和一些輔助線材組成。質(zhì)量弧光保護(hù)裝置生產(chǎn)廠家上海麥哥思電氣。浙江高質(zhì)量弧光保護(hù)裝置</p><p style="text-indent:25px">微機(jī)綜合保護(hù)系統(tǒng)質(zhì)量口碑麥哥思電氣。四川原裝弧光保護(hù)裝置</p><p style="text-indent:25px">2.要求弧光保護(hù)裝置具有弧光、電流的雙條件判據(jù)功能。 3.弧光保護(hù)應(yīng)具有故障定位功能及自檢功能，自檢異常發(fā)出告警信號(hào)。 4.弧光保護(hù)跳閘接點(diǎn)不得使用（晶體管）電子式跳閘接點(diǎn)，必須使用符合IEC255-23保護(hù)繼電器標(biāo)準(zhǔn)的機(jī)械式跳閘接點(diǎn)，以保證系統(tǒng)的可靠性。保護(hù)動(dòng)作時(shí)間不高于10ms，繼電器節(jié)點(diǎn)容量滿足250AC 8A。 5.弧光保護(hù)電源采用交直流通用，弧光光強(qiáng)及電流閥值可由用戶整定。 6.弧光保護(hù)裝置系統(tǒng)設(shè)備應(yīng)配置485通訊接口，配置大屏幕顯示弧光傳感器及斷路器狀態(tài)及所有報(bào)警信息?；」獗Ｗo(hù)裝置安裝在高壓柜上。四川原裝弧光保護(hù)裝置</p></p><br /><p>文章來(lái)源地址: http://www.cdcfah.com/cp/3022093.html</p></div></div></div></div></div><div id="aumtvcz" class="page-right twoColRt"><div id="yif7a9b" class="box01 margin10 clearfix"><h3><a href="http://www.cdcfah.com/cp/">猜你喜歡</a></h3><div id="etqsz7h" 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(qiáng) 信息推薦自業(yè)物資供應(yīng)" class="vcenter" onerror="javascript:this.src='/static/new_net_01/images/nopic.jpg';"></div><p>福建ZF配件哪家強(qiáng) 信息推薦自業(yè)物資供應(yīng)</p></a></div><div id="xxurovx" class="recomPic 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