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onerror="javascript:this.src='/static/new_net_01/images/nopic.jpg';"></p></div></div></div><div id="23i2etk" 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>廣東省</p><p><span>包裝要求：</span><span style="color: #f30;"></span></p><p><span>產(chǎn)品關(guān)鍵詞：</span>江西sh2400絕緣電阻測(cè)試儀,絕緣電阻測(cè)試儀</p><p><span>***更新：</span>2020-10-15 02:07:36</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="jxuwy8c" class="rightbox"><h3>公司基本資料信息</h3><p style="border:0;"><a rel="nofollow">深圳市茂迪機(jī)電設(shè)備有限公司</a></p><p><span>聯(lián)系人：</span>黃富強(qiáng)</p><p><span>郵箱: </span>fuqiang.huang@maodi.net</p><p><span>電話: </span>13509625980</p><p><span>傳真: </span>0755_</p><p><span>網(wǎng)址: </span>http://www.maodi.net</p><p><span>手機(jī): </span>0755-83280136</p><p><span>地址: </span>深南大道6006號(hào)華豐大廈2803、2804</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="vel8w2l" class="page-proshow02"><p class="title">詳細(xì)說明</p><div id="foax3yf" class="box"><p><p> 數(shù)字兆歐表4類常見故障 </p> <p> 為了保證數(shù)字兆歐表能正常工作，江西sh2400絕緣電阻測(cè)試儀，我們?cè)谶@里簡(jiǎn)要介紹一下4類常見的兆歐表故障： 1、電壓不穩(wěn)。可能原因有三個(gè)：*、調(diào)速器裝置螺絲松弛，調(diào)速輪摩擦點(diǎn)接觸不緊密；第二，調(diào)速器彈簧松動(dòng)；第三，彈性不足。 2、無交流、直流輸出?？赡茉驊?yīng)該有三個(gè)：*、子線圈開路；第二、定子線圈脫焊，第三、二極管或電容器損壞。 3、無法搖動(dòng)，即發(fā)電機(jī)有卡住現(xiàn)象或者搖動(dòng)時(shí)很費(fèi)力。主要原因有兩類：*是發(fā)電機(jī)轉(zhuǎn)子與極靴相碰或者是增速齒輪嚙合不好，第二是發(fā)電機(jī)轉(zhuǎn)子已損壞。 4、機(jī)殼漏電。大致原因應(yīng)該是內(nèi)部引線碰殼或發(fā)電機(jī)彈簧引出線碰殼或是由于受潮造成絕緣不良。用數(shù)字兆歐表測(cè)量絕緣時(shí)，江西sh2400絕緣電阻測(cè)試儀，為什么規(guī)定搖測(cè)時(shí)間為１分鐘？用兆歐表測(cè)量絕緣電阻時(shí)，江西sh2400絕緣電阻測(cè)試儀，一般規(guī)定以搖測(cè)一分鐘后的讀數(shù)為準(zhǔn)備。因?yàn)樵诮^緣體上加上直流電壓后，流過絕緣體的電流（吸收電流）將隨時(shí)間的增長(zhǎng)而逐漸下降。而絕緣的直流電阻率是根據(jù)穩(wěn)態(tài)傳導(dǎo)電流確定的，并且不同材料的絕緣體，其絕緣吸收電流的衰減時(shí)間也不同。但是試驗(yàn)證明，絕大多數(shù)材料其絕緣吸收電流經(jīng)過一分鐘已趨于穩(wěn)定，所以規(guī)定以加壓一分鐘后的絕緣電阻值來確定絕緣性能的好壞。絕緣電阻測(cè)試儀產(chǎn)品標(biāo)準(zhǔn)。江西sh2400絕緣電阻測(cè)試儀</p><div style="width:100%;text-align: center;"><img style="max-width: 640px; max-height: 320px;" alt="江西sh2400絕緣電阻測(cè)試儀,絕緣電阻測(cè)試儀" src="https://tyunfile.71360.com/UploadFile/szmdjd/637377740163876953/8353403.png"></div><p> 都是越大越好，因?yàn)槎颊f絕緣了，比較好是無窮大，但是不現(xiàn)實(shí)，所以說絕緣電阻的參數(shù)一般都是說大于多少多少歐，不會(huì)說多少歐--多少歐。 </p> <p> 電機(jī)絕緣電阻，只要每千伏大于1兆歐就算合格。 </p> <p> 對(duì)于一般在用電機(jī)，無論是三相還是單相電機(jī)的絕緣電阻只要大于0.4---0.5 兆歐就算合格。當(dāng)然電機(jī)的絕緣電阻是越大越好。 </p> <p> 電機(jī)的絕緣電阻是指：繞組與繞組之間（也就是常說的相與相之間）、繞組與外殼之間（也就是常說的相與地之間）的電阻。對(duì)于一般電機(jī)可用500V搖表測(cè)試。廣東高美絕緣電阻測(cè)試儀兆歐表絕緣電阻測(cè)試儀(兆歐表)分類與常用規(guī)格型號(hào)。</p><div style="width:100%;text-align: center;"><img style="max-width: 640px; max-height: 320px;" alt="江西sh2400絕緣電阻測(cè)試儀,絕緣電阻測(cè)試儀" src="https://tyunfile.71360.com/UploadFile/szmdjd/637377740420458984/2524281.png"></div><p style="text-indent:25px">當(dāng)用兆歐表?yè)u測(cè)電器設(shè)備的絕緣電阻時(shí),一定要注意“L”和“E”端不能接反,正確的接法是：“L”線端鈕接被測(cè)設(shè)備導(dǎo)體,“E”地端鈕接地的設(shè)備外殼,“G”屏蔽端接被測(cè)設(shè)備的絕緣部分。如果將“L”和“E”接反了,流過絕緣體內(nèi)及表面的漏電流經(jīng)外殼匯集到地,由地經(jīng)“L”流進(jìn)測(cè)量線圈,使“G”失去屏蔽作用而給測(cè)量帶來很大誤差。另外,因?yàn)椤癊”端內(nèi)部引線同外殼的絕緣程度比“L”端與外殼的絕緣程度要低,當(dāng)兆歐表放在地上使用時(shí),采用正確接線方式時(shí),“E”端對(duì)儀表外殼和外殼對(duì)地的絕緣電阻,相當(dāng)于短路,不會(huì)造成誤差,而當(dāng)“L”與“E”接反時(shí),“E”對(duì)地的絕緣電阻同被測(cè)絕緣電阻并聯(lián),而使測(cè)量結(jié)果偏小,給測(cè)量帶來較大誤差。由此可見,要想準(zhǔn)確地測(cè)量出電氣設(shè)備等的絕緣電阻,必須對(duì)兆歐表進(jìn)行正確的使用,否則,將失去了測(cè)量的準(zhǔn)確性和可靠性。</p><p style="text-indent:25px">絕緣電阻測(cè)試儀結(jié)構(gòu)：直流高壓發(fā)生器測(cè)量絕緣電阻必須在測(cè)量端施加一高壓，此高壓值在絕緣電阻表國(guó)標(biāo)中規(guī)定為50V、100V、250V、500V、1000V、2500V、5000V…直流高壓的產(chǎn)生一般有三種方法。第一種手搖發(fā)電機(jī)式。我國(guó)生產(chǎn)的兆歐表約80%是采用這種方法（搖表名稱來源）。第二種是通過市電變壓器升壓，整流得到直流高壓。一般市電式兆歐表采用的方法。第三種是利用晶體管振蕩式或**脈寬調(diào)制電路來產(chǎn)生直流高壓，一般電池式和市電式的絕緣電阻表采用的方法。如何校準(zhǔn)絕緣電阻測(cè)試儀。</p><div style="width:100%;text-align: center;"><img style="max-width: 640px; max-height: 320px;" alt="江西sh2400絕緣電阻測(cè)試儀,絕緣電阻測(cè)試儀" src="https://tyunfile.71360.com/UploadFile/szmdjd/637377740366113281/7273409.png"></div><p style="text-indent:25px">產(chǎn)品特性編輯1、儀表的絕緣測(cè)試對(duì)于5400在500V比較高可測(cè)20GΩ, 在1000V比較高可測(cè)40GΩ, 在2500V比較高可測(cè)100GΩ；對(duì)于5500型在2500V比較高可測(cè)100GΩ, 在5000V比較高可測(cè)200GΩ；對(duì)于5600型在5000V比較高可測(cè)200GΩ, 在10000V比較高可測(cè)400GΩ；。2、額定的輸出電壓保持在對(duì)5400型負(fù)載電阻可低至4MΩ/8MΩ/20MΩ；對(duì)5500型為20MΩ/40MΩ；對(duì)5600型為40MΩ/80MΩ，這使得儀表能夠精確測(cè)量較低的絕緣阻抗。3、自動(dòng)轉(zhuǎn)換的高低范圍雙刻度指示, 彩色刻度易于讀識(shí), 并且有LED顯示相應(yīng)色彩。4、整機(jī)采用ABS塑料機(jī)殼便攜式設(shè)計(jì)，具有抗干擾能力強(qiáng)、結(jié)構(gòu)緊湊、外觀精美。5、儀表采用超薄型張絲表頭，抗震能力強(qiáng)。6、交直流兩用，內(nèi)置可充電池和智能充電模塊，整機(jī)輸出功率大（C型）。7、是測(cè)量變壓器、互感器、發(fā)電機(jī)、高壓電動(dòng)機(jī)、電力電容、電力電纜、避雷器等絕緣電阻的理想測(cè)試儀器。絕緣電阻測(cè)試儀_兆歐表等絕緣電阻檢測(cè)設(shè)備。江西sh2400絕緣電阻測(cè)試儀</p><p style="text-indent:25px">絕緣電阻表使用方法。江西sh2400絕緣電阻測(cè)試儀</p><p style="text-indent:25px">儀器儀表行業(yè)飛速發(fā)展一是因?yàn)槲覈?guó)的經(jīng)濟(jì)高速穩(wěn)定發(fā)展的運(yùn)行;按照過去的經(jīng)驗(yàn)，如果GDP的增長(zhǎng)在10%以上時(shí)，儀表行業(yè)的增長(zhǎng)率則在26%～30%之間。二是因?yàn)槲覈?guó)宏觀調(diào)控對(duì)儀表行業(yè)的影響有一個(gè)滯后期，儀表往往在工程的后期才交付使用，因此，因宏觀調(diào)控政策而減少的收入對(duì)儀表行業(yè)的影響不會(huì)太大。隨著網(wǎng)絡(luò)消費(fèi)的不斷遞增，而互聯(lián)網(wǎng)的的商業(yè)價(jià)值不斷被挖掘出來，呈爆發(fā)式增長(zhǎng)，傳統(tǒng)的營(yíng)銷模式將逐步被取代。有限責(zé)任公司企業(yè)要抓住機(jī)遇，融入到互聯(lián)網(wǎng)發(fā)展的行業(yè)中，為行業(yè)的發(fā)展提高競(jìng)爭(zhēng)力。工業(yè)領(lǐng)域轉(zhuǎn)型升級(jí)、提升發(fā)展質(zhì)量等有利于儀器儀表行業(yè)的發(fā)展；**安全、社會(huì)安全、產(chǎn)業(yè)和信息安全等需要自主、電能質(zhì)量分析儀，功率分析儀，亮度計(jì)，色差儀裝備，成為全社會(huì)共識(shí)；為迎接貿(mào)易型百年未有之大變局，行家認(rèn)為，要重新定義中國(guó)在世界經(jīng)濟(jì)版圖中的地位，要順應(yīng)形勢(shì)實(shí)現(xiàn)制造升級(jí)。以華立集團(tuán)在境外開發(fā)“中國(guó)工業(yè)園”的成功案例來闡述，跨國(guó)經(jīng)營(yíng)要成為企業(yè)主動(dòng)的戰(zhàn)略選擇，在不確定性中更好地活下去，以全球化視野看問題，很多困惑在全球化過程中會(huì)迎刃而解。江西sh2400絕緣電阻測(cè)試儀</p><p style="text-indent:25px">深圳市茂迪機(jī)電設(shè)備有限公司是一家貿(mào)易型類企業(yè)，積極探索行業(yè)發(fā)展，努力實(shí)現(xiàn)產(chǎn)品創(chuàng)新。公司致力于為客戶提供安全、質(zhì)量有保證的良好產(chǎn)品及服務(wù)，是一家有限責(zé)任公司企業(yè)。公司擁有專業(yè)的技術(shù)團(tuán)隊(duì)，具有電能質(zhì)量分析儀，功率分析儀，亮度計(jì)，色差儀等多項(xiàng)業(yè)務(wù)。茂迪將以真誠(chéng)的服務(wù)、創(chuàng)新的理念、***的產(chǎn)品，為彼此贏得全新的未來！</p></p><br /><p>文章來源地址: http://www.cdcfah.com/cp/1556676.html</p></div></div></div></div></div><div id="aprolc8" class="page-right twoColRt"><div id="f2etkbs" class="box01 margin10 clearfix"><h3><a href="http://www.cdcfah.com/cp/">猜你喜歡</a></h3><div id="3guq7bi" class="recomPic likePro"><a href="http://www.cdcfah.com/cp/814588.html"><div><img src="http://tyunfile.71360.com/UpLoadFile/2019/11/1/14/637082168864691056_lgpj_5374157.jpg" alt="福建ZF配件哪家強(qiáng) 信息推薦自業(yè)物資供應(yīng)" class="vcenter" onerror="javascript:this.src='/static/new_net_01/images/nopic.jpg';"></div><p>福建ZF配件哪家強(qiáng) 信息推薦自業(yè)物資供應(yīng)</p></a></div><div id="pjgdkmo" class="recomPic likePro"><a 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