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id="33gvho7" class="proBig"><div id="lkrtaml" class="bigimg"><div><p class="pic"><img src="https://tyunfile.71360.com/UploadFile/hzhy00290/637360477295000000/1123941.jpg" class="vcenter" onerror="javascript:this.src='/static/new_net_01/images/nopic.jpg';"></p></div></div><div id="t2yfcta" class="smallimg"><div><p class="pic"><img src="https://tyunfile.71360.com/UploadFile/hzhy00290/637360477295000000/1123941.jpg" class="vcenter" onerror="javascript:this.src='/static/new_net_01/images/nopic.jpg';"></p></div></div></div><div id="wlikmyv" 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>ETAON 塑殼斷路器NZMH2-S125,塑殼斷路器</p><p><span>***更新：</span>2021-01-28 09:06:49</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="hwyacoa" 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="hgiaho3" class="page-proshow02"><p class="title">詳細說明</p><div id="azr8ael" class="box"><p><p> <strong>塑殼斷路器</strong>的常用標準 </p> <p> GB10963-1989|家用及類似場所用斷路器； </p> <p> GB14048.2-1994|低壓開關(guān)設(shè)備和控制設(shè)備低壓斷路器； </p> <p> GB16916.1-1997|家用和類似用途的不帶過電流保護的剩余電流動作斷路器(RCCB)第1部分：一般規(guī)則； </p> <p> GB16916.21-1997|家用和類似用途的不帶過電流保護的剩余電流動作斷路器(RCCB)第2.1部分：一般規(guī)則對動作功能與線路電壓無關(guān)的RCCB的適用性； </p> <p> GB16916，ETAON 塑殼斷路器NZMH2-S125.22-1997|家用和類似用途的不帶過電流保護的剩余電流動作斷路器(RCCB)第2.2部分：一般規(guī)則對動作功能與線路電壓有關(guān)的RCCB的適用性； </p> <p> GB16917.1-1997|家用和類似用途的帶過電流保護的剩余電流動作斷路器(RCBO)第1部分：一般規(guī)則； </p> <p> GB16917，ETAON 塑殼斷路器NZMH2-S125.21-1997|家用和類似用途的帶過電流保護的剩余電流動作斷路器(RCBO)第2.1部分：一般規(guī)則對動作功能與線路電壓無關(guān)的RCBO的適用性； </p> <p> GB16917，ETAON 塑殼斷路器NZMH2-S125.22-1997|家用和類似用途的帶過電流保護的剩余電流動作斷路器(RCBO)第2.2部分：一般規(guī)則對動作功能與線路電壓有關(guān)的RCBO的適用性； </p> <p> GB1984-1989|交流高壓斷路器； </p> <p> GB4876-1985|交流高壓斷路器的線路充電電流開合試驗； </p> <p> GB7675-1987|交流高壓斷路器的開合電容器組試驗。油斷路器的注意事項有哪些？ETAON 塑殼斷路器NZMH2-S125</p><div style="width:100%;text-align: center;"><img style="max-width: 640px; max-height: 320px;" alt="ETAON 塑殼斷路器NZMH2-S125,塑殼斷路器" src="https://tyunfile.71360.com/UploadFile/hzhy00290/637360477295000000/1123941.jpg"></div><p> <br /> </p> <p> <br /> </p> <p> <br /> </p> <p> <strong>塑殼斷路器</strong>:適用工作環(huán)境 </p> <p> a.海拔高度2000m及以下; </p> <p> b.周圍介質(zhì)溫度不高于+40℃(對船用產(chǎn)品為+45℃)和不低于-5℃; </p> <p> c.能耐受潮濕空氣的影響; </p> <p> d.能耐受鹽霧、油霧的影響; </p> <p> e.比較大傾斜為±25.5°; </p> <p> f.在受到船舶正常振動時能可靠工作; </p> <p> g.在受到地震情況下(4g)能可靠工作; </p> <p> h.在無危險的介質(zhì)中，具介質(zhì)無足以腐蝕金屬的破壞絕緣的氣體與導電塵埃的地方; </p> <p> i.在沒有雨雪侵襲的地方。 </p> <p> 斷路器的分類 </p> <p> 按產(chǎn)品極數(shù)分為二極(100A、225A)、三極與四極。 </p> <p> 四極產(chǎn)品中中性極(N極)的型式分四種： </p> <p> A型：N極不安裝過電流脫扣器，且N極始終相通，不與其它三極一起合分; </p> <p> B型：N極不安裝過電流脫扣器，且N極與其它三級一起合分;(N極無合后分); </p> <p> C型：N極安裝過電流脫扣器，且N級與其它三極一起合分;(N極先合后分); </p> <p> D型：N極安裝過電流脫扣器，且N極始終相通，不與其它三極一起合分; </p> <p> <br /> </p> <p> <br /> ETAON 塑殼斷路器NZMH2-S125建筑工地上微斷和塑殼斷路器的選用。</p><div style="width:100%;text-align: center;"><img style="max-width: 640px; max-height: 320px;" alt="ETAON 塑殼斷路器NZMH2-S125,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> <strong>塑殼斷路器</strong>的工作原理 </p> <p> 低壓斷路器的主觸點是靠手動操作或電動合閘的。主觸點閉合后，自由脫扣機構(gòu)將主觸點鎖在合閘位置上。過電流脫扣器的線圈和熱脫扣器的熱元件與主電路串聯(lián)，欠電壓脫扣器的線圈和電源并聯(lián)。 </p> <p> 當電路發(fā)生短路或嚴重過載時，過電流脫扣器的銜鐵吸合，使自由脫扣機構(gòu)動作，主觸點斷開主電路。 </p> <p> 當電路過載時，熱脫扣器的熱元件發(fā)熱使雙金屬片上彎曲，推動自由脫扣機構(gòu)動作，主觸點斷開主電路。 </p> <p> 當電路欠電壓時，欠電壓脫扣器的銜鐵釋放，也使自由脫扣機構(gòu)動作，主觸點斷開主電路。 </p> <p> 當按下分勵脫扣按鈕時，分勵脫扣器銜鐵吸合，使自由脫扣機構(gòu)動作，主觸點斷開主電路。 </p> <p> <br /> </p> <p> <br /> </p><p> <br /> </p> <p> <br /> </p> <p> <br /> </p> <p> 空氣斷路器的主要附件 </p> <p> 空氣斷路器的外部附件（一） </p> <p> 電動操作機構(gòu)：是用于遠距離自動分閘和合閘斷路器的一種附件，電動操作機構(gòu)有電動機操作機構(gòu)和電磁鐵操作機構(gòu)兩種，電動機操作機構(gòu)為塑殼式斷路器殼架等級額定電流400A及以上斷路器，電磁鐵操作機構(gòu)適用于塑殼斷呼器殼架等級額定電流225A及以下斷路器，無論是電磁鐵或電動機，它們的吸合和轉(zhuǎn)動方向都是相同，*由電動操作機構(gòu)內(nèi)部的凸輪的位置來達到合、分，斷路器在用電動機構(gòu)操作時，在額定控制電壓的85%-110%之間的任一電壓下，應能保證斷路器可靠閉合。 </p> <p> <br /> </p> <p> <br /> 塑殼斷路器的接線方式和種類。</p><div style="width:100%;text-align: center;"><img style="max-width: 640px; max-height: 320px;" alt="ETAON 塑殼斷路器NZMH2-S125,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> 空氣斷路器的內(nèi)部附件（三） </p> <p> 分勵脫扣器：是一種用電壓源激勵的脫扣器，它的電壓可與主電路電壓無關(guān)。分勵脫扣器是一種遠距離操縱分閘的附件。當電源電壓等于額定控制電源電壓的70%-110%之間的任一電壓時，就能可靠分斷斷路器。分勵脫扣器是短時工作制，線圈通電時間一般不能超過1S，否則線會被燒毀。塑殼斷路器為防止線圈燒毀，在分勵脫扣線圈串聯(lián)一個微動開關(guān)，當分勵脫扣器通過銜鐵吸合，微動開關(guān)從常閉狀態(tài)轉(zhuǎn)換成常開，由于分勵脫扣器電源的控制線路被切斷，即使人為地按住按鈕，分勵線圈始終不再通電就避免了線圈燒損情況的產(chǎn)生。當斷路器再扣合閘后，微動開關(guān)重新處于常閉位置。 </p> <p> <br /> </p> <p> <br /> 斷路器中板后式接線方式的介紹。LZM塑殼斷路器LZMC1-A40</p><p style="text-indent:25px">斷路器中抽屜式接線方式的介紹。ETAON 塑殼斷路器NZMH2-S125</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（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 /> ETAON 塑殼斷路器NZMH2-S125</p></p><br /><p>文章來源地址: 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