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class="proBig"><div id="zebikjq" class="bigimg"><div><p class="pic"><img src="http://tyunfile.71360.com/UploadFile/cdwckj/637044864923105469/6132507.jpg" class="vcenter" onerror="javascript:this.src='/static/new_net_01/images/nopic.jpg';"></p></div></div><div id="g27gazb" class="smallimg"><div><p class="pic"><img src="http://tyunfile.71360.com/UploadFile/cdwckj/637044864923105469/6132507.jpg" class="vcenter" onerror="javascript:this.src='/static/new_net_01/images/nopic.jpg';"></p></div></div></div><div id="q2xofo2" 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>四川省</p><p><span>包裝要求：</span><span style="color: #f30;"></span></p><p><span>產(chǎn)品關(guān)鍵詞：</span>資陽高低壓電器哪家好,高低壓電器</p><p><span>***更新：</span>2020-07-31 14:14:29</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="zy8nfc8" class="rightbox"><h3>公司基本資料信息</h3><p style="border:0;"><a rel="nofollow">成都皖川科技有限公司</a></p><p><span>聯(lián)系人：</span>朱成生</p><p><span>郵箱: </span>cdwckjgs@sina.com</p><p><span>電話: </span>18755046999</p><p><span>傳真: </span>028_87463776</p><p><span>網(wǎng)址: </span></p><p><span>手機(jī): </span>028-87463776</p><p><span>地址: </span>四川省成都市青羊區(qū)青羊萬達(dá)廣場SOHO公寓2-2-1138室</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="uy9h4w7" class="page-proshow02"><p class="title">詳細(xì)說明</p><div id="hb9pm3f" class="box"><p><p style="text-indent:25px">對于 TT ，資陽高低壓電器哪家好、 IN 、 IT 系統(tǒng)和電力負(fù)荷的分級的高低壓配電柜基礎(chǔ)知識，部分小伙伴還是不是很了解。TT 方式是指將電氣設(shè)備的金屬外殼直接接地的保護(hù)系統(tǒng)，稱為保護(hù)接地系統(tǒng)，也稱 TT 系統(tǒng)。TN 方式是將電氣設(shè)備的金屬外殼與工作零線相接的保護(hù)系統(tǒng)，稱作接零保護(hù)系統(tǒng)，用 TN 表示。IT 方式是電源側(cè)沒有工作接地，或經(jīng)過高阻抗接地。負(fù)載側(cè)電氣設(shè)備進(jìn)行接地保護(hù)的保護(hù)系統(tǒng)。一級負(fù)荷：中斷供電將造成人身傷亡者；或***，資陽高低壓電器哪家好、經(jīng)濟(jì)上將造成重大損者。二級負(fù)荷：二級負(fù)荷為中斷供電將在***，資陽高低壓電器哪家好、經(jīng)濟(jì)上造成較大損失者，三級負(fù)荷：三級負(fù)荷為一般的電力負(fù)荷。資陽高低壓電器哪家好</p><div style="width:100%;text-align: center;"><img style="max-width: 640px; max-height: 320px;" alt="資陽高低壓電器哪家好,高低壓電器" src="http://tyunfile.71360.com/UploadFile/cdwckj/637044864923105469/6132507.jpg"></div><p style="text-indent:25px">變壓器在電力系統(tǒng)中主要作用：主要作用是變換電壓，以利于功率的傳輸。在同一段線路上,傳送相同的功率, 電壓經(jīng)升壓變壓器升壓后，線路傳輸?shù)碾娏鳒p小,可以減少線路損耗，提高送電經(jīng)濟(jì)性，達(dá)到遠(yuǎn)距離送電的目的，而降壓則能滿足各級使用電壓的用戶需要。對于渦流的解釋是當(dāng)交流電流通過導(dǎo)線時，在導(dǎo)線周圍會產(chǎn)生交變的磁場。交變磁場中的整塊導(dǎo)體的內(nèi)部會產(chǎn)生感應(yīng)電流，由于這種感應(yīng)電流在整塊導(dǎo)體內(nèi)部自成閉合回路，很像水的旋渦，所以稱作渦流。渦流不但會白白損耗電能，使用電設(shè)備效率降低，而且會造成用電器（如變壓器鐵芯）發(fā)熱，嚴(yán)重時將影響設(shè)備正常運(yùn)行。資陽高低壓電器哪家好</p><div style="width:100%;text-align: center;"><img style="max-width: 640px; max-height: 320px;" alt="資陽高低壓電器哪家好,高低壓電器" src="http://tyunfile.71360.com/UploadFile/cdwckj/637044864927294922/4146485.jpg"></div><p style="text-indent:25px">低壓電器是指工作在交流電壓小于1200V、直流電壓小于1500V的電路中，起通斷、保護(hù)、控制或調(diào)節(jié)作用的電氣設(shè)備，以及利用電能來控制、保護(hù)和調(diào)節(jié)非電過程和非電裝置的電氣設(shè)備。電力系統(tǒng)的負(fù)荷絕大部分是通過低壓電器供給的。電力用戶的各種生產(chǎn)機(jī)械設(shè)備，大部分是采用低壓供電。在龐大的低壓配電系統(tǒng)和低壓用電系統(tǒng)中，需要大量的控制、保護(hù)用低壓電器。低壓電器是一種能根據(jù)外界的信號和要求，手動或自動地接通、斷開電路，以實現(xiàn)對電路或非電對象的切換、控制、保護(hù)、檢測、變換和調(diào)節(jié)的元件或設(shè)備。控制電器按其工作電壓的高低，以交流1200V、直流1500V為界，可劃分為高壓控制電器和低壓控制電器兩大類。總的來說，低壓電器可以分為配電電器和控制電器兩大類，是成套電氣設(shè)備的基本組成元件。在工業(yè)、農(nóng)業(yè)、交通、**以及人們用電部門中，大多數(shù)采用低壓供電，因此電器元件的質(zhì)量將直接影響到低壓供電系統(tǒng)的可靠性。</p><p style="text-indent:25px">低壓電器分類： 1.按動作方式可分為：（1）手動電器--依靠外力直接操作來進(jìn)行切換的電器，如刀開關(guān)、按鈕開關(guān)等。（2）自動電器--依靠指令或物理量變化而自動動作的電器，如接觸器、繼電器等。 2.按用途可分為：（1）低壓控制電器--主要在低壓配電系統(tǒng)及動力設(shè)備中起控制作用，如刀開關(guān)、低壓斷路器等。（2）低壓保護(hù)電器--主要在低壓配電系統(tǒng)及動力設(shè)備中起保護(hù)作用，如熔斷器、熱繼電器等。 3.按種類可分為：刀開關(guān)、刀形轉(zhuǎn)換開關(guān)、熔斷器、低壓斷路器、接觸器、繼電器、主令電器和自動開關(guān)等。</p><div style="width:100%;text-align: center;"><img style="max-width: 640px; max-height: 320px;" alt="資陽高低壓電器哪家好,高低壓電器" src="http://tyunfile.71360.com/UploadFile/cdwckj/637044864925400391/9393102.jpg"></div><p style="text-indent:25px">其實在通常生活中我們所指的低壓電器設(shè)備是指在380/220V電網(wǎng)中承擔(dān)通斷控制的設(shè)備。低壓電器是一種能根據(jù)外界的信號和要求，手動或自動地接通、斷開電路，以實現(xiàn)對電路或非電對象的切換、控制、保護(hù)、檢測、變換和調(diào)節(jié)的元件或設(shè)備。控制電器按其工作電壓的高低，以交流1000V、直流1500V為界，可劃分為高壓控制電器和低壓控制電器兩大類。所以總的來說，低壓電器可以分為配電電器和控制電器兩大類，是成套電氣設(shè)備的基本組成元件。四川高低壓電器報價</p><p style="text-indent:25px">資陽高低壓電器哪家好</p><p style="text-indent:25px">成套設(shè)備是指生產(chǎn)成品或半成品的工業(yè)聯(lián)合裝置。它可以是一個工段、一條生產(chǎn)線、一個車間或一個工廠。可以是某一專業(yè)的單項設(shè)備，也可以是數(shù)個專業(yè)的綜合設(shè)備。高低壓：按照中華人民共和國行業(yè)標(biāo)準(zhǔn)DL 408—91《電業(yè)安全工作規(guī)程》第1.4的規(guī)定，電氣設(shè)備分為高壓和低壓兩種。高壓：設(shè)備對地電壓在250V以上者：低壓：設(shè)備對地電壓在250V及以下者。高低壓成套設(shè)備就是包含有高壓設(shè)備和低壓設(shè)備的綜合設(shè)備。低壓電器一般都有兩個基本部分：一個是感測部分，它感測外界的信號，作出有規(guī)律的反應(yīng)，在自控電器中，感測部分大多由電磁機(jī)構(gòu)組成，在受控電器中，感測部分通常為操作手柄等；另一個是執(zhí)行部分，如觸點(diǎn)是根據(jù)指令進(jìn)行電路的接通或切斷的。資陽高低壓電器哪家好</p><p style="text-indent:25px">成都皖川科技有限公司創(chuàng)建于2011-12-30，注冊資金 100-200萬元，是一家專注研發(fā)、銷售計算機(jī)軟硬件;計算機(jī)系統(tǒng)集成;銷售電子產(chǎn)品、儀器儀表、電氣設(shè)備、機(jī)械設(shè)備、閥門、水泵、電線電纜、通訊器材(不含無線廣播電視發(fā)射及衛(wèi)星地面接收設(shè)備)、醫(yī)療器械(***一類)、實驗設(shè)備、化工產(chǎn)品(不含危險化學(xué)品)、五金交電、照明設(shè)備。的公司。唯才是舉，唯能是用：擁有優(yōu)秀人才51~100人和，是實現(xiàn)企業(yè)戰(zhàn)略目標(biāo)的基礎(chǔ)，是企業(yè)持續(xù)發(fā)展的動力。公司業(yè)務(wù)范圍主要包括：[ "耐磨熱電偶", "氣體檢測儀器", "便攜式氣體報警控制器", "雙金屬溫度計" ]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。目前公司已經(jīng)成為[ "耐磨熱電偶", "氣體檢測儀器", "便攜式氣體報警控制器", "雙金屬溫度計" ]的**企業(yè)，正積蓄著更大的能量，向更廣闊的空間、更***的領(lǐng)域拓展。</p></p><br /><p>文章來源地址: http://m.cdcfah.com/cp/763122.html</p></div></div></div></div></div><div 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