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onerror="javascript:this.src='/static/new_net_01/images/nopic.jpg';"></p></div></div><div id="18bmwyf" class="smallimg"><div><p class="pic"><img src="https://tyunfile.71360.com/UploadFile/szmdjd/637377740135341797/9762323.png" class="vcenter" onerror="javascript:this.src='/static/new_net_01/images/nopic.jpg';"></p></div></div></div><div id="upheqcz" 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>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>浙江智能絕緣電阻測試儀兆歐表,絕緣電阻測試儀</p><p><span>***更新：</span>2021-02-04 12:18:56</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="vuwdfro" 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="ds8ebnk" class="page-proshow02"><p class="title">詳細(xì)說明</p><div id="5uykh2c" class="box"><p><p> <br /> </p> <p> 絕緣電阻表主要由三部分組成：***是直流高壓發(fā)生器，浙江智能絕緣電阻測試儀兆歐表，用以產(chǎn)生一直流高壓；第二是測量回路；第三是顯示。 </p> <p> (1)直流高壓發(fā)生器 </p> <p> 測量絕緣電阻必須在測量端施加一高壓，此高壓值在絕緣電阻表國標(biāo)中規(guī)定為50V、100V、250V、500V、1000V、2500V，浙江智能絕緣電阻測試儀兆歐表、5000V… </p> <p> 直流高壓的產(chǎn)生一般有三種方法。***種手搖發(fā)電機(jī)式，浙江智能絕緣電阻測試儀兆歐表。目前我國生產(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，一般電池式的絕緣電阻表采用的方法。 </p> <p> <br /> </p> <p> <br /> METRAHIT 27EX絕緣毫歐萬用表。浙江智能絕緣電阻測試儀兆歐表</p><div style="width:100%;text-align: center;"><img style="max-width: 640px; max-height: 320px;" alt="浙江智能絕緣電阻測試儀兆歐表,絕緣電阻測試儀" src="https://tyunfile.71360.com/UploadFile/szmdjd/637377740135341797/9762323.png"></div><p> 淺談絕緣電阻測試儀的應(yīng)用與維護(hù) </p> <p> 絕緣電阻測試儀是非常重要的故障診斷工具，有效的絕緣電阻系統(tǒng)具有高的電阻值，通常大于幾個兆歐。差的絕緣系統(tǒng)具有較低的絕緣電阻。絕緣電阻測試儀作用：絕緣電阻測試儀用于測量絕緣電阻的直接作用模擬指示的電測量儀表，其單位用MΩ表示;端鈕電壓-儀表線路端鈕和接地端鈕之間的電壓;測量端鈕-絕緣電阻表用來連接被測量的接線端子。絕緣電阻表的測量端鈕應(yīng)分別標(biāo)出線路端鈕L，接地端鈕E，屏蔽端鈕G的標(biāo)志符。絕緣電阻測試儀的日常維護(hù)如下：通常一般所有的電氣設(shè)備都是需要日常的維護(hù)的。維護(hù)的目的不簡單的是為了延長測試儀的使用壽命，也是為了發(fā)現(xiàn)可能存在的故障隱患或微小的故障。早點(diǎn)發(fā)現(xiàn)這些隱患或微小的故障，可以在減少帶來不必要的損失和人事傷害。絕緣電阻測試儀的日常維護(hù)通常可以分為定期維護(hù)和不定期維護(hù)，或根據(jù)為維護(hù)測試的目的分為預(yù)防性維護(hù)和預(yù)測性維護(hù)等等。浙江智能絕緣電阻測試儀兆歐表兆歐表多少兆歐算漏電。</p><div style="width:100%;text-align: center;"><img style="max-width: 640px; max-height: 320px;" alt="浙江智能絕緣電阻測試儀兆歐表,絕緣電阻測試儀" src="https://tyunfile.71360.com/UploadFile/szmdjd/637377741198359375/8992300.png"></div><p> 校準(zhǔn)這些儀器時的一個主要問題是找到合適的電阻器，當(dāng)然是首先要足夠精確；還需要電阻值足夠大，使其能夠承受高直流電壓。此外，對于應(yīng)該采用什么樣的電阻值來進(jìn)行校準(zhǔn)，兆歐表制造商并沒有統(tǒng)一的標(biāo)準(zhǔn)，所以就需要各種各樣的電阻值。通過了解各種不同的絕緣測試儀，可以知道它們需要不同的性能檢查點(diǎn)。例如，某個測試儀需要測試50kΩ，而另一款測試儀則需要測試60kΩ，再一款又需要測試100 kΩ，等等。 </p> <p> “通用”的多功能電氣/電子校準(zhǔn)器不能用于校準(zhǔn)絕緣電阻測試儀，因?yàn)樗鼈兊碾娮杵魍ǔ?*能夠處理有限的電壓，常常比較高不過20V。絕緣電阻校準(zhǔn)器所面臨的挑戰(zhàn)是將這些特殊需要集成到一款經(jīng)濟(jì)、緊湊和便攜的解決方案中。 </p><p style="text-indent:25px">（6）需連續(xù)進(jìn)行第二次測量時，可按3-5步驟執(zhí)行。注意：如長期不進(jìn)行測試，需將電池倉中的電池拿出，以免電池液滲漏損壞儀表。 3. 屏蔽端（GUARD）的使用方法在電力電纜等的絕緣測量或外界電磁場干擾時，為了消除表面漏電和外界電磁場的干擾而影響測量結(jié)果的準(zhǔn)確度，在實(shí)際測量過程中，采用儀表的屏蔽端來消除漏電電流、屏蔽干擾。對于兩節(jié)及以上的被試品，例如避雷器、耦合電容可采用圖5所示的接線進(jìn)行測量。圖中將屏蔽端接到被測避雷器上一節(jié)法蘭上，這樣，由上方高壓線路等所引起的干擾電流由屏蔽端子屏蔽掉，而不經(jīng)過測試主回路，從而避免了干擾電流的影響。對**上節(jié)避雷器，可將其上法蘭接儀表地端（EARTH）后再接地，使干擾電流直接入地。但后者不能將干擾完全消除掉。 TAG：絕緣電阻測試儀、高壓絕緣電阻測試儀、絕緣電阻測量儀、絕緣特性測試儀、電動搖表、數(shù)字搖表、數(shù)顯搖表、數(shù)字兆歐計絕緣電阻測試儀_兆歐表等絕緣電阻檢測設(shè)備。</p><div style="width:100%;text-align: center;"><img style="max-width: 640px; max-height: 320px;" alt="浙江智能絕緣電阻測試儀兆歐表,絕緣電阻測試儀" src="https://tyunfile.71360.com/UploadFile/szmdjd/637377741174765625/3055818.png"></div><p> 幾乎所有的絕緣測試儀都采用直流電壓作為激勵，所以兆歐表校準(zhǔn)器的交流要求很少。許多兆歐表為兩端設(shè)備，它提供一個電壓，并測量由被測設(shè)備所決定的電流。量程達(dá)到1TΩ 以及更高的兆歐表通常具有第三個端子，稱為保護(hù)端（Guard），對于消除泄漏通路以及被測未知電阻Rx的并聯(lián)元件非常有用。保護(hù)端的目的是消除可能會產(chǎn)生的泄漏電流來選擇性地將輸出寄生電阻性元件的影響減小為零。 </p> <p> 絕緣測試儀，通常被稱為數(shù)字兆歐表或高阻計，***用于測量發(fā)電機(jī)、馬達(dá)、電源變壓器、配線、電器和其它電氣裝置（如控制、信號、通信和電源的電纜）的絕緣電阻。高精度絕緣電阻測試儀的技術(shù)參數(shù)。浙江智能絕緣電阻測試儀兆歐表</p><p style="text-indent:25px">如何判斷各種型號絕緣電阻測試儀精度高低-深圳茂迪。浙江智能絕緣電阻測試儀兆歐表</p><p> 1.絕緣電阻測試儀原理--簡介 </p> <p> 絕緣電阻測試儀即智能雙顯絕緣電阻測試儀(兩檔)采用嵌入式工業(yè)單片機(jī)實(shí)時操作系統(tǒng)，數(shù)字模擬指針與數(shù)字段碼顯示完美結(jié)合，又稱數(shù)字絕緣電阻測試儀、兆歐表、智能絕緣電阻測試儀等。該系列表具有多種電壓輸出等級、容量大、抗干擾強(qiáng)、交直流兩用、操作簡單、各種測量結(jié)果具有防掉電功能等特點(diǎn)。它是測量大容量變壓器、互感器、發(fā)電機(jī)、高壓電動機(jī)、電力電容、電力電纜、避雷器等絕緣電阻的理想測試儀器。浙江智能絕緣電阻測試儀兆歐表</p><p> 深圳市茂迪機(jī)電設(shè)備有限公司成立于1995年4月，是廣東省儀器儀表協(xié)會理事單位、深圳市儀器儀表行業(yè)協(xié)會理事單位，深圳市**采購中心定點(diǎn)采購單位。主要由光電事業(yè)部、物體色差部、系統(tǒng)集成部，環(huán)境測試儀器部組成。 </p> <p> 經(jīng)過多年的努力，根據(jù)中國儀器儀表市場的需求及國內(nèi)外儀器儀表行業(yè)的發(fā)展趨勢，我公司從眾多的同類產(chǎn)品中精挑細(xì)選出一些技術(shù)先進(jìn)，質(zhì)量可靠，性價比高的品牌測量儀器推薦給用戶，與日本柯尼卡美能達(dá) Konica Minolta、美國Radiant、雷云光電Rayclouds、德國Instyument Systems、日本托普康Topcon、法國ELDIM、美國藍(lán)菲Labsphere、中國臺灣茂迪、德國GMC-I高美測儀、德國GMC-I KURTH（庫爾特），TESCOM，有著緊密而***的合作聯(lián)系。 </p> <p> </p> <span style="display:none;"></span></p><br /><p>文章來源地址: http://www.cdcfah.com/cp/3160479.html</p></div></div></div></div></div><div id="hg3h27v" class="page-right twoColRt"><div id="xrdpryf" class="box01 margin10 clearfix"><h3><a href="http://www.cdcfah.com/cp/">猜你喜歡</a></h3><div id="wgiu7iz" 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)" 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