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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>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>自貢高低壓電器哪家專業(yè),高低壓電器</p><p><span>***更新：</span>2021-01-22 09:05:00</p><p><span id="click" >瀏覽次數(shù)：2次</span></p><a rel="nofollow" class="button">聯(lián)系我們</a></div></div><div id="g77khjq" 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(wàn)達(dá)廣場(chǎng)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="tcjbdkb" class="page-proshow02"><p class="title">詳細(xì)說(shuō)明</p><div id="kylifh3" class="box"><p><p style="text-indent:25px">低壓電器能夠依據(jù)操作信號(hào)或外界現(xiàn)場(chǎng)信號(hào)的要求，自動(dòng)或手動(dòng)地改變電路的狀態(tài)、參數(shù)，自貢高低壓電器哪家專業(yè)，實(shí)現(xiàn)對(duì)電路或被控對(duì)象的控制、保護(hù)、測(cè)量、指示、調(diào)節(jié)。低壓電器的作用有：（1）控制作用。如電梯的上下移動(dòng)、快慢速自動(dòng)切換與自動(dòng)停層等。（2）保護(hù)作用。能根據(jù)設(shè)備的特點(diǎn)，對(duì)設(shè)備、環(huán)境、以及人身實(shí)行自動(dòng)保護(hù)，如電機(jī)的過(guò)熱保護(hù)、電網(wǎng)的短路保護(hù)，自貢高低壓電器哪家專業(yè)、漏電保護(hù)等，自貢高低壓電器哪家專業(yè)。（3）測(cè)量作用。利用儀表及與之相適應(yīng)的電器，對(duì)設(shè)備，電網(wǎng)或其它非電參數(shù)進(jìn)行測(cè)量，如電流、電壓、功率、轉(zhuǎn)速、溫度、濕度等。（4）調(diào)節(jié)作用。低壓電器可對(duì)一些電量和非電量進(jìn)行調(diào)整，以滿足用戶的要求，如柴油機(jī)油門的調(diào)整、房間溫濕度的調(diào)節(jié)、照度的自動(dòng)調(diào)節(jié)等。（5）指示作用。利用低壓電器的控制、保護(hù)等功能，檢測(cè)出設(shè)備運(yùn)行狀況與電氣電路工作情況，如絕緣監(jiān)測(cè)、保護(hù)掉牌指示等。（6）轉(zhuǎn)換作用。在用電設(shè)備之間轉(zhuǎn)換或?qū)Φ蛪弘娖鳌⒖刂齐娐贩謺r(shí)投入運(yùn)行，以實(shí)現(xiàn)功能切換，如勵(lì)磁裝置手動(dòng)與自動(dòng)的轉(zhuǎn)換，供電的市電與自備電的切換等．自貢高低壓電器哪家專業(yè)</p><div style="width:100%;text-align: center;"><img style="max-width: 640px; max-height: 320px;" alt="自貢高低壓電器哪家專業(yè),高低壓電器" src="http://tyunfile.71360.com/UploadFile/cdwckj/637044864927294922/4146485.jpg"></div><p style="text-indent:25px">對(duì)于 TT 、 IN 、 IT 系統(tǒng)和電力負(fù)荷的分級(jí)的高低壓配電柜基礎(chǔ)知識(shí)，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(guò)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(jí)負(fù)荷：中斷供電將造成人身傷亡者；或***、經(jīng)濟(jì)上將造成重大損者。二級(jí)負(fù)荷：二級(jí)負(fù)荷為中斷供電將在***、經(jīng)濟(jì)上造成較大損失者，三級(jí)負(fù)荷：三級(jí)負(fù)荷為一般的電力負(fù)荷。自貢高低壓電器哪家專業(yè)</p><div style="width:100%;text-align: center;"><img style="max-width: 640px; max-height: 320px;" alt="自貢高低壓電器哪家專業(yè),高低壓電器" src="http://tyunfile.71360.com/UploadFile/cdwckj/637044864925400391/9393102.jpg"></div><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(gè)工段、一條生產(chǎn)線、一個(gè)車間或一個(gè)工廠。可以是某一專業(yè)的單項(xiàng)設(shè)備，也可以是數(shù)個(gè)專業(yè)的綜合設(shè)備。高低壓：按照中華人民共和國(guó)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(duì)地電壓在250V以上者：低壓：設(shè)備對(duì)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(gè)基本部分：一個(gè)是感測(cè)部分，它感測(cè)外界的信號(hào)，作出有規(guī)律的反應(yīng)，在自控電器中，感測(cè)部分大多由電磁機(jī)構(gòu)組成，在受控電器中，感測(cè)部分通常為操作手柄等；另一個(gè)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。</p><p style="text-indent:25px">在高壓線路中用來(lái)實(shí)現(xiàn)關(guān)合、開斷、保護(hù)、控制、調(diào)節(jié)、量測(cè)的設(shè)備。一般的高壓電器包括開關(guān)電器、量測(cè)電器和限流、限壓電器。國(guó)際上公認(rèn)的高低壓電器的分界線交流是1kV（直流則為1500V）。為交流1kV以上為高壓電器，1kV及以下為低壓電器。有時(shí)也把變壓器列入高壓電器。高壓電器與電壓的劃分，按照老的電力安規(guī)規(guī)定，對(duì)地電壓在250v以上屬于高壓，2011年新版電力安規(guī)改為，對(duì)地電壓1000V以上屬于高壓，1000V以下屬于低壓，目前執(zhí)行的是2011的這個(gè)標(biāo)準(zhǔn)。</p><div style="width:100%;text-align: center;"><img style="max-width: 640px; max-height: 320px;" alt="自貢高低壓電器哪家專業(yè),高低壓電器" src="http://tyunfile.71360.com/UploadFile/cdwckj/637044864923105469/6132507.jpg"></div><p style="text-indent:25px">低壓電器分類： 1.按動(dòng)作方式可分為：（1）手動(dòng)電器--依靠外力直接操作來(lái)進(jìn)行切換的電器，如刀開關(guān)、按鈕開關(guān)等。（2）自動(dòng)電器--依靠指令或物理量變化而自動(dòng)動(dòng)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(dòng)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(dòng)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(dòng)開關(guān)等。資陽(yáng)高低壓電器</p><p style="text-indent:25px">自貢高低壓電器哪家專業(yè)</p><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(jí)使用電壓的用戶需要。對(duì)于渦流的解釋是當(dāng)交流電流通過(guò)導(dǎo)線時(shí)，在導(dǎo)線周圍會(huì)產(chǎn)生交變的磁場(chǎng)。交變磁場(chǎng)中的整塊導(dǎo)體的內(nèi)部會(huì)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(huì)白白損耗電能，使用電設(shè)備效率降低，而且會(huì)造成用電器（如變壓器鐵芯）發(fā)熱，嚴(yán)重時(shí)將影響設(shè)備正常運(yùn)行。自貢高低壓電器哪家專業(yè)</p><p style="text-indent:25px">成都皖川科技有限公司是一家研發(fā)、銷售計(jì)算機(jī)軟硬件;計(jì)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(wú)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(shí)驗(yàn)設(shè)備、化工產(chǎn)品(不含危險(xiǎn)化學(xué)品)、五金交電、照明設(shè)備。的公司，致力于發(fā)展為創(chuàng)新務(wù)實(shí)、誠(chéng)實(shí)可信的企業(yè)。成都皖川科技作為研發(fā)、銷售計(jì)算機(jī)軟硬件;計(jì)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(wú)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(shí)驗(yàn)設(shè)備、化工產(chǎn)品(不含危險(xiǎn)化學(xué)品)、五金交電、照明設(shè)備。的企業(yè)之一，為客戶提供良好的耐磨熱電偶，氣體檢測(cè)儀器，便攜式氣體報(bào)警控制器，雙金屬溫度計(jì)。成都皖川科技不斷開拓創(chuàng)新，追求出色，以技術(shù)為先導(dǎo)，以產(chǎn)品為平臺(tái)，以應(yīng)用為重點(diǎn)，以服務(wù)為保證，不斷為客戶創(chuàng)造更高價(jià)值，提供更優(yōu)服務(wù)。成都皖川科技始終關(guān)注自身，在風(fēng)云變化的時(shí)代，對(duì)自身的建設(shè)毫不懈怠，高度的專注與執(zhí)著使成都皖川科技在行業(yè)的從容而自信。</p></p><br /><p>文章來(lái)源地址: http://www.cdcfah.com/cp/2960242.html</p></div></div></div></div></div><div id="kold2zg" class="page-right twoColRt"><div 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