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onerror="javascript:this.src='/static/new_net_01/images/nopic.jpg';"></p></div></div><div id="mnk7p3r" class="smallimg"><div><p class="pic"><img src="https://tyunfile.71360.com/UploadFile/hzhy00290/637360477293779297/6590583.jpg" class="vcenter" onerror="javascript:this.src='/static/new_net_01/images/nopic.jpg';"></p></div></div></div><div id="cgdk7ah" 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>浙江省</p><p><span>包裝要求：</span><span style="color: #f30;"></span></p><p><span>產(chǎn)品關(guān)鍵詞：</span>塑殼斷路器LZMS3-AE630,塑殼斷路器</p><p><span>***更新：</span>2021-01-24 00:18:35</p><p><span id="click" >瀏覽次數(shù)：1次</span></p><a rel="nofollow" class="button">聯(lián)系我們</a></div></div><div id="bfx3s4w" class="rightbox"><h3>公司基本資料信息</h3><p style="border:0;"><a rel="nofollow">杭州浩蘊(yùn)自動(dòng)化科技有限公司</a></p><p><span>聯(lián)系人：</span>謝凱浩</p><p><span>郵箱: </span>1017004522@qq.com</p><p><span>電話: </span>13817446397</p><p><span>傳真: </span>0571_</p><p><span>網(wǎng)址: </span></p><p><span>手機(jī): </span>0571-85385963</p><p><span>地址: </span>經(jīng)濟(jì)技術(shù)開(kāi)發(fā)區(qū)18號(hào)大街795號(hào)1幢11層1109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="kyqxm3t" class="page-proshow02"><p class="title">詳細(xì)說(shuō)明</p><div id="gpmebn3" class="box"><p><p> <br /> </p> <p> <br /> </p> <p> <br /> </p> <p> <strong>塑殼斷路器</strong>各種分?jǐn)嗄芰﹃P(guān)系（四） </p> <p> 額定運(yùn)行短路分?jǐn)嗄芰?Ics)，是指在一定的試驗(yàn)參數(shù)(電壓、短路電流和功率因數(shù))條件下，經(jīng)一定的試驗(yàn)程序，能夠接通、分?jǐn)嗟亩搪冯娏?，?jīng)此通斷后，還要繼續(xù)承載其額定電流的分?jǐn)嗄芰?，它的試?yàn)程序?yàn)镺—t（線上）CO—t(線上)CO。 </p> <p> 短時(shí)耐受電流(Icw),是指在一定的電壓、短路電流、功率因數(shù)下，忍受0.05，塑殼斷路器LZMS3-AE630、0，塑殼斷路器LZMS3-AE630.1、0.25、0.5或1s而斷路器不允許脫扣的能力，Icw是在短延時(shí)脫扣時(shí)，對(duì)斷路器的電動(dòng)穩(wěn)定性和熱穩(wěn)定性的考核指標(biāo)，它是針對(duì)B類(lèi)斷路器的，通常Icw的最小值是：當(dāng)In≤2500A時(shí)，它為12In或5kA，而In＞2500A時(shí)，它為30kA(DW45_2000的Icw為400V、50kA，塑殼斷路器LZMS3-AE630，DW45_3200的Icw為400V、65kA)。 </p> <p> <br /> </p> <p> <br /> 斷路器中板后式接線方式的介紹。塑殼斷路器LZMS3-AE630</p><div style="width:100%;text-align: center;"><img style="max-width: 640px; max-height: 320px;" alt="塑殼斷路器LZMS3-AE630,塑殼斷路器" src="https://tyunfile.71360.com/UploadFile/hzhy00290/637360477293779297/6590583.jpg"></div><p> <br /> </p> <p> <br /> </p> <p> <br /> </p> <p> <strong>塑殼斷路器</strong>的工作原理 </p> <p> 聯(lián)鎖裝置有機(jī)械聯(lián)鎖和電氣聯(lián)鎖兩種類(lèi)型。工作原理是： </p> <p> （1）機(jī)械聯(lián)鎖裝置一般使用鋼絲繩或者杠桿機(jī)構(gòu)，以機(jī)械位置的變動(dòng)（也可采用多功能程序鎖）來(lái)保證在斷路器切斷電源以前，隔離開(kāi)關(guān)的操作把手不能動(dòng)作。 </p> <p> （2）電氣聯(lián)鎖裝置電氣聯(lián)鎖一般有兩種聯(lián)鎖方式，一種是通過(guò)操作機(jī)構(gòu)上的聯(lián)動(dòng)輔助接點(diǎn)（常開(kāi)或常閉）去控制隔離開(kāi)關(guān)的把手。當(dāng)斷路器未斷開(kāi)時(shí)，隔離開(kāi)關(guān)操作把手不能動(dòng)作。 </p> <p> 另一種電氣聯(lián)鎖是利用距離開(kāi)關(guān)操作機(jī)構(gòu)上的聯(lián)動(dòng)輔助接點(diǎn)（常開(kāi)或常閉）去控制斷路器。當(dāng)拉動(dòng)隔離開(kāi)關(guān)的把手時(shí)，聯(lián)動(dòng)輔助接點(diǎn)（常開(kāi)或常閉）使斷路器動(dòng)作以切斷電路，從而可防止帶負(fù)荷拉動(dòng)距離開(kāi)關(guān)的事故。 </p> <p> <br /> </p> <p> <br /> 伊頓穆勒 LZM塑殼斷路器LZMS3-VE630自動(dòng)化技術(shù)之塑殼斷路器型號(hào)。</p><div style="width:100%;text-align: center;"><img style="max-width: 640px; max-height: 320px;" alt="塑殼斷路器LZMS3-AE630,塑殼斷路器" src="https://tyunfile.71360.com/UploadFile/hzhy00290/637360477293525390/8404229.jpg"></div><p> <br /> </p> <p> <br /> </p> <p> <br /> </p> <p> 空氣斷路器的工作原理 </p> <p> 脫扣方式有熱動(dòng)、電磁和復(fù)式脫扣3種。 </p> <p> 當(dāng)線路發(fā)生一般性過(guò)載時(shí)，過(guò)載電流雖不能使電磁脫扣器動(dòng)作，但能使熱元件產(chǎn)生一定熱量，促使雙金屬片受熱向上彎曲，推動(dòng)杠桿使搭鉤與鎖扣脫開(kāi)，將主觸頭分?jǐn)?，切斷電源。?dāng)線路發(fā)生短路或嚴(yán)重過(guò)載電流時(shí)，短路電流超過(guò)瞬時(shí)脫扣整定電流值，電磁脫扣器產(chǎn)生足夠大的吸力，將銜鐵吸合并撞擊杠桿，使搭鉤繞轉(zhuǎn)軸座向上轉(zhuǎn)動(dòng)與鎖扣脫開(kāi)，鎖扣在反力彈簧的作用下將三副主觸頭分?jǐn)?，切斷電源?</p> <p> 開(kāi)關(guān)的脫扣機(jī)構(gòu)是一套連桿裝置。當(dāng)主觸點(diǎn)通過(guò)操作機(jī)構(gòu)閉合后，就被鎖鉤鎖在合閘的位置。如果電路中發(fā)生故障，則有關(guān)的脫扣器將產(chǎn)生作用使脫扣機(jī)構(gòu)中的鎖鉤脫開(kāi)，于是主觸點(diǎn)在釋放彈簧的作用下迅速分?jǐn)?。按照保護(hù)作用的不同，脫扣器可以分為過(guò)電流脫扣器及失壓脫扣器等類(lèi)型。 </p> <p> <br /> </p> <p> <br /> </p><p> <br /> </p> <p> <br /> </p> <p> <br /> </p> <p> <strong>塑殼斷路器</strong>各種分?jǐn)嗄芰﹃P(guān)系（五） </p> <p> 運(yùn)行短路分?jǐn)嗄芰Φ脑囼?yàn)條件極為苛刻(一次分?jǐn)?、二次通?，由于試后它還要繼續(xù)承載額定電流(其次數(shù)為壽命數(shù)的5%)，因此它不單要驗(yàn)證脫扣特性、工頻耐壓，還要驗(yàn)證溫升。IEC947_2(以及1997新版IEC60947_2)和我國(guó)國(guó)家標(biāo)準(zhǔn)GB140482規(guī)定，Ics可以是極限短路分?jǐn)嗄芰cu數(shù)值的25%、50%、75%和**(B類(lèi)斷路器為50%、75%和**，B類(lèi)無(wú)25%是鑒于它多數(shù)是用于主干線保護(hù)之故)。 </p> <p> 上文提到的選擇斷路器的一個(gè)重要原則是斷路器的短路分?jǐn)嗄芰Α菥€路的預(yù)期短路電流，這個(gè)斷路器的短路分?jǐn)嗄芰νǔＪ侵杆臉O限短路分?jǐn)嗄芰Α?</p> <p> <br /> </p> <p> <br /> 塑殼斷路器的接線方式和種類(lèi)。</p><div style="width:100%;text-align: center;"><img style="max-width: 640px; max-height: 320px;" alt="塑殼斷路器LZMS3-AE630,塑殼斷路器" src="https://tyunfile.71360.com/UploadFile/hzhy00290/637360477293886718/694847.jpg"></div><p> <br /> </p> <p> <br /> </p> <p> <br /> </p> <p> <strong>塑殼斷路器</strong>的特性（二） </p> <p> 4.過(guò)載延時(shí)保護(hù)：過(guò)載延時(shí)保護(hù)是指負(fù)荷電流超過(guò)設(shè)備的限定范圍有燒毀設(shè)備的危險(xiǎn)，保護(hù)裝置能在一定時(shí)間內(nèi)切斷電源。過(guò)載有個(gè)熱量積累的過(guò)程，保護(hù)動(dòng)作不需要過(guò)于迅速。對(duì)于短時(shí)過(guò)電流，保護(hù)不應(yīng)該動(dòng)作。 </p> <p> 5.隔離功能：隔離功能就是要求斷路器斷開(kāi)后的泄漏電流不致對(duì)人身和設(shè)備產(chǎn)生危害。多次短路跳閘后開(kāi)關(guān)性能下降，泄漏電流會(huì)增大。對(duì)人體而言30mA以下為安全漏電電流，而在惡劣的環(huán)境中，超過(guò)300mA的泄漏電流持續(xù)2小時(shí)以上，就可能使絕緣損壞發(fā)生相地短路進(jìn)而引發(fā)火災(zāi)。 </p> <p> <br /> </p> <p> <br /> 建筑工地上微斷和塑殼斷路器的選用。伊頓穆勒 LZM塑殼斷路器LZMS3-VE630</p><p style="text-indent:25px">塑殼斷路器的內(nèi)部結(jié)構(gòu)及特點(diǎn)。塑殼斷路器LZMS3-AE630</p><p> <br /> </p> <p> <br /> </p> <p> <br /> </p> <p> <strong>塑殼式斷路器</strong>如何選型（八） </p> <p> 附件作為斷路器功能的派生和補(bǔ)充，為斷路器增加了控制手段和擴(kuò)大保護(hù)功能，是斷路器不可分割的一個(gè)重要部分，主要包括輔助觸頭、報(bào)警觸頭、分勵(lì)脫扣器、欠電壓脫扣器、電動(dòng)操作機(jī)構(gòu)、外部轉(zhuǎn)動(dòng)操作手柄等附件。 </p> <p> 1)輔助觸頭主要用于斷路器分、合狀態(tài)顯示但無(wú)法顯示是否故障脫扣，接在斷路器的控制電路中，塑殼斷路器殼架等級(jí)額定電流100為單斷點(diǎn)轉(zhuǎn)換觸頭，225及以上為橋式觸頭結(jié)構(gòu)，約定發(fā)熱電流3A；殼架等級(jí)額定電流400及以上可裝兩常開(kāi)、兩常閉，約定發(fā)熱電流為6A。 </p> <p> 2)報(bào)警觸頭主要用于斷路器的負(fù)載出現(xiàn)過(guò)載、短路或欠電壓等故障時(shí)而自由脫扣。報(bào)警觸頭的工作電流是：AC380V、0.3A、DC220V、0.15A，一般不會(huì)超過(guò)1A，而發(fā)熱電流可以是1～2.5A范圍。 </p> <p> <br /> </p> <p> <br /> 塑殼斷路器LZMS3-AE630</p></p><br /><p>文章來(lái)源地址: http://www.cdcfah.com/cp/2977977.html</p></div></div></div></div></div><div id="7qg2mls" class="page-right twoColRt"><div id="rby77su" class="box01 margin10 clearfix"><h3><a href="http://www.cdcfah.com/cp/">猜你喜歡</a></h3><div id="xh3rlxe" class="recomPic 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