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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>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NZMB1-A100,塑殼斷路器</p><p><span>***更新：</span>2021-01-17 07:06:41</p><p><span id="click" >瀏覽次數(shù)：3次</span></p><a rel="nofollow" class="button">聯(lián)系我們</a></div></div><div id="2eaum42" class="rightbox"><h3>公司基本資料信息</h3><p style="border:0;"><a rel="nofollow">杭州浩蘊自動化科技有限公司</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: </span>0571-85385963</p><p><span>地址: </span>經(jīng)濟技術(shù)開發(fā)區(qū)18號大街795號1幢11層1109室</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="gimyum2" class="page-proshow02"><p class="title">詳細說明</p><div id="umqekga" class="box"><p><p> <br /> </p> <p> <br /> </p> <p> <br /> </p> <p> <strong>塑殼斷路器</strong>的作用 </p> <p> 1.正常倩況下接通和斷開高壓電路中的空載及負荷電流; </p> <p> 2.在系統(tǒng)發(fā)生故障時能與保護裝置和自動裝置相配合迅速切斷故障電流防止事故擴大從而保證系統(tǒng)安全運行。 </p> <p> 一般情況下塑殼斷路器本身不存在潤滑方面的問題，需要潤滑的常常是它的操動機構(gòu)。熱繼電器的作用是電動機過負荷時自動切斷電源，熱繼電器的構(gòu)造是兩片膨脹系數(shù)不同的金屬片構(gòu)成，電流過大時膨脹系數(shù)大的先膨脹，塑殼斷路器NZMB1-A100，起到切斷電源的作用。熱繼電器動作后有人工復(fù)位和自動復(fù)位，塑殼斷路器NZMB1-A100。熔斷器作用：當電路發(fā)生故障或異常時，伴隨著電流不斷升高，并且升高的電流有可能損壞電路中的某些重要器件或貴重器件，塑殼斷路器NZMB1-A100，也有可能燒毀電路甚至造成火災(zāi)。 </p> <p> <br /> </p> <p> <br /> 一步一步教你安裝塑殼斷路器。塑殼斷路器NZMB1-A100</p><div style="width:100%;text-align: center;"><img style="max-width: 640px; max-height: 320px;" alt="塑殼斷路器NZMB1-A100,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>各種分斷能力關(guān)系（五） </p> <p> 運行短路分斷能力的試驗條件極為苛刻(一次分斷、二次通斷)，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%)，因此它不單要驗證脫扣特性、工頻耐壓，還要驗證溫升。IEC947_2(以及1997新版IEC60947_2)和我國國家標準GB140482規(guī)定，Ics可以是極限短路分斷能力Icu數(shù)值的25%、50%、75%和**(B類斷路器為50%、75%和**，B類無25%是鑒于它多數(shù)是用于主干線保護之故)。 </p> <p> 上文提到的選擇斷路器的一個重要原則是斷路器的短路分斷能力≥線路的預(yù)期短路電流，這個斷路器的短路分斷能力通常是指它的極限短路分斷能力。 </p> <p> <br /> </p> <p> <br /> 伊頓穆勒 ETAON LZM塑殼斷路器LZMB1-A50+NZM1-XSV斷路器中抽屜式接線方式的介紹。</p><div style="width:100%;text-align: center;"><img style="max-width: 640px; max-height: 320px;" alt="塑殼斷路器NZMB1-A100,塑殼斷路器" src="https://tyunfile.71360.com/UploadFile/hzhy00290/637360477293173828/6367049.jpg"></div><p> <br /> </p> <p> <br /> </p> <p> <br /> </p> <p> <br /> </p> <p> <strong>塑殼斷路器</strong>各種分斷能力關(guān)系（七） </p> <p> 人的分斷能力 </p> <p> 分斷能力，是人在種種情況下，作出判斷的基本能力。分段開關(guān)和聯(lián)絡(luò)開關(guān)的區(qū)別一、聯(lián)絡(luò)開關(guān)顧名思義就是起聯(lián)絡(luò)作用的。主要用在兩個電源，兩臺變壓器的配電系統(tǒng)中，兩臺變壓器的主控柜分別出線到聯(lián)絡(luò)柜里面。聯(lián)絡(luò)柜的上，下口分別接兩臺主控的出線，即一個采用上口進線，一個采用下口進線，一般兩臺柜子要形成互鎖，不能同時使用，平時只開其中一臺，另外一臺備用。二、分段開關(guān)線路自動分段開關(guān)，簡稱分段開關(guān)，是配電網(wǎng)提高可靠性和自動化程度的一個重要設(shè)備，***的應(yīng)用于配電線路的分支線或區(qū)段線路上用來隔離長久故障；它不具備開斷短路故障電流的能力，不能單獨作為主保護開關(guān)設(shè)備，只能與電源側(cè)前級開關(guān)設(shè)備想配合，在無電流的情況下自動分閘。 </p> <p> 它們既有相同點，也有各自的特點。 </p> <p> <br /> </p> <p> <br /> </p><p> <br /> </p> <p> <br /> </p> <p> <br /> </p> <p> <strong>塑殼斷路器</strong>各種分斷能力關(guān)系（二） </p> <p> 電器開關(guān)的分斷能力 </p> <p> 一般分為極限分斷能力Icu和運行分斷能力Ics（很多微斷不分），假如Icu=60KA，那么當線路中發(fā)生60KA的故障電流，斷路器可以安全切斷電路，而不發(fā)生觸頭熔接、等異常狀況。注意做過極限分斷的斷路器不允許再用（往往失效了），必須更換。而如果Ics=60KA，分斷該電流后，斷路器允許合閘再使用，但應(yīng)急后也須更換。現(xiàn)在很多好的斷路器可以做到Icu=Ics。當然，對于Icu與Ics，國家有嚴格的定義與相關(guān)的試驗，以上只是簡單說說。 </p> <p> 一些大的系統(tǒng)的短路電流往往會很大，現(xiàn)在很多斷路器的Icu都可達100KA以上。 </p> <p> <br /> </p> <p> <br /> 空氣斷路器的主要附件有哪些？</p><div style="width:100%;text-align: center;"><img style="max-width: 640px; max-height: 320px;" alt="塑殼斷路器NZMB1-A100,塑殼斷路器" src="https://tyunfile.71360.com/UploadFile/hzhy00290/637360477293505859/8022486.jpg"></div><p> <strong>塑殼斷路器</strong>的主要參數(shù)（三） </p> <p> ⑻限流分斷能力 </p> <p> 限流分斷能力是指電路發(fā)生短路時，斷路器跳閘時限制故障電流的能力。電路發(fā)生短路時，斷路器觸頭快速打開，產(chǎn)生電弧，相當于在線路中串入1個迅速增加的電弧電阻，從而限制了故障電流的增加，降低了短路電流的電磁效應(yīng)、電動效應(yīng)和熱效應(yīng)對斷路器和用電設(shè)備的不良影響，延長斷路器的使用壽命。斷路器斷開時間越短，限流效果就越好，Ics就越接近Icu。 </p> <p> ⑼微型斷路器的脫扣特性 </p> <p> 斷路器脫扣特性分為A、B、C、D、K等幾種，各自的含義如下： </p> <p> A型脫扣特性：脫扣電流為（2～3）In，適用于保護半導(dǎo)體電子線路，帶小功率電源變壓器的測量線路，或線路長且短路電流小的系統(tǒng)； </p> <p> B型脫扣特性：脫扣電流為（3～5）In，適用于住戶配電系統(tǒng)，家用電器的保護和人身安全保護； </p> <p> C型脫扣特性：脫扣電流為（5～10）In，適用于保護配電線路以及具有較高接通電流的照明線路和電動機回路； </p> <p> D型脫扣特性：脫扣電流為（10～20）In，適用于保護具有很高沖擊電流的設(shè)備，如變壓器、電磁閥等； </p> <p> K型脫扣特性：具備1.2倍熱脫扣動作電流和8～14倍磁脫扣動作范圍，適用于保護電動機線路設(shè)備，有較高的抗沖擊電流能力。塑殼斷路器各種分斷能力關(guān)系。伊頓穆勒 ETAON LZM塑殼斷路器LZMB1-A50+NZM1-XSV</p><p style="text-indent:25px">塑殼斷路器的選型要素和注意事項。塑殼斷路器NZMB1-A100</p><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、電磁和復(fù)式脫扣3種。 </p> <p> 當線路發(fā)生一般性過載時，過載電流雖不能使電磁脫扣器動作，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，推動杠桿使搭鉤與鎖扣脫開，將主觸頭分斷，切斷電源。當線路發(fā)生短路或嚴重過載電流時，短路電流超過瞬時脫扣整定電流值，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)動與鎖扣脫開，鎖扣在反力彈簧的作用下將三副主觸頭分斷，切斷電源。 </p> <p> 開關(guān)的脫扣機構(gòu)是一套連桿裝置。當主觸點通過操作機構(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)生作用使脫扣機構(gòu)中的鎖鉤脫開，于是主觸點在釋放彈簧的作用下迅速分斷。按照保護作用的不同，脫扣器可以分為過電流脫扣器及失壓脫扣器等類型。 </p> <p> <br /> </p> <p> <br /> 塑殼斷路器NZMB1-A100</p></p><br /><p>文章來源地址: http://www.cdcfah.com/cp/2884138.html</p></div></div></div></div></div><div id="q2c2m4w" class="page-right twoColRt"><div id="scqmasu" class="box01 margin10 clearfix"><h3><a href="http://www.cdcfah.com/cp/">猜你喜歡</a></h3><div id="uokgc2g" class="recomPic likePro"><a href="http://www.cdcfah.com/cp/814588.html"><div><img 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