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src="https://tyunfile.71360.com/UploadFile/szmdjd/637377740395224609/6932303.png" class="vcenter" onerror="javascript:this.src='/static/new_net_01/images/nopic.jpg';"></p></div></div><div id="reqr3ix" class="smallimg"><div><p class="pic"><img src="https://tyunfile.71360.com/UploadFile/szmdjd/637377740395224609/6932303.png" class="vcenter" onerror="javascript:this.src='/static/new_net_01/images/nopic.jpg';"></p></div></div></div><div id="hk8xtxq" 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>福建耐壓絕緣電阻測試儀多少錢一個,絕緣電阻測試儀</p><p><span>***更新：</span>2021-01-10 07:14:14</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="us93j3z" class="rightbox"><h3>公司基本資料信息</h3><p style="border:0;"><a rel="nofollow">深圳市茂迪機電設備有限公司</a></p><p><span>聯(lián)系人：</span>黃富強</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: </span>0755-83280136</p><p><span>地址: </span>深南大道6006號華豐大廈2803、2804</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="yorq9oi" class="page-proshow02"><p class="title">詳細說明</p><div id="cvjpdth" class="box"><p><p> 如何使用兆歐表測量絕緣電阻 </p> <p> 1，福建耐壓絕緣電阻測試儀多少錢一個、準備本儀表接線前，首先應將“工作電源”開關(guān)調(diào)在關(guān)的位置，“高壓控制”按鈕應斷開！被測物應脫離電網(wǎng)，并且被測各端必須經(jīng)過人工放***接通大地，福建耐壓絕緣電阻測試儀多少錢一個，確保安全方可接線！尤其變電站、發(fā)電廠現(xiàn)場等受到電網(wǎng)泄漏感應到強干擾的被測量對象，事先應通過接大地的多個人工放***良好接到所有被測量線路端，避免接線時接線人員被電擊，福建耐壓絕緣電阻測試儀多少錢一個，本儀表接線完成后才能把被測量端的人工放***移開。 2、接線把儀表的兩個“E”端接到被測物的地或零端，以及大地。把儀表的“L”端接到被測線路端，例如變壓器繞組，電纜芯線。把儀表“G”端接到被測回路需要消除表面電阻泄漏影響的保護環(huán)。絕緣電阻測試儀價格_深圳茂迪。福建耐壓絕緣電阻測試儀多少錢一個</p><div style="width:100%;text-align: center;"><img style="max-width: 640px; max-height: 320px;" alt="福建耐壓絕緣電阻測試儀多少錢一個,絕緣電阻測試儀" src="https://tyunfile.71360.com/UploadFile/szmdjd/637377740395224609/6932303.png"></div><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、馬達、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。它們往往被用于例行維護程序中來指示電機在數(shù)月或數(shù)年內(nèi)絕緣電阻的變化。絕緣電阻發(fā)生大的變化，就可能預示著潛在的故障。所以，就需要對兆歐表進行定期校準，以確保儀表本身沒有隨時間發(fā)生變化。 </p> <p> 兆歐表通過用一個電壓激勵被測裝置或網(wǎng)絡，然后測量激勵所產(chǎn)生的電流，利用歐姆定律測量出電阻。優(yōu)良的兆歐表校準器包括各種可選的電阻器，這點與現(xiàn)代校準器利用合成電阻功能提供的電阻器差別不大。兆歐表校準器與直流/低頻校準器的不同之處在于所需的電阻器范圍，以及耐受的電壓能力不同。例如，與數(shù)字多用表（DMM）上配備的歐姆表功能相比，這些電氣測試器在進行電阻測量時施加的電壓要高得多。兆歐表采用的電壓范圍通常從50V到高達5 kV；而典型數(shù)字多用表的電壓一般小于10 V。對于絕緣測試來說，需要測量的電阻值范圍很大，其上限可達到10TΩ，所需的電壓更高。浙江威格絕緣電阻測試儀數(shù)字絕緣電阻表測試儀-接地電阻儀器型號。</p><div style="width:100%;text-align: center;"><img style="max-width: 640px; max-height: 320px;" alt="福建耐壓絕緣電阻測試儀多少錢一個,絕緣電阻測試儀" src="https://tyunfile.71360.com/UploadFile/szmdjd/637377740221152344/1912350.png"></div><p> 用絕緣電阻測試儀測量絕緣電阻時，有哪些因素會造成測量數(shù)據(jù)不準確，為什么？ </p> <p> A）電池電壓不足。電池電壓欠壓過低，造成電路不能正常工作，所以測出的讀數(shù)是不準確的。 </p> <p> B）測試線接法不正確。誤將"L"、"G"、"E"三端接線接錯，或?qū)?G"、"L"連線"G"、"E"連線接在被測試品兩端。 </p> <p> C） "G"端連線未接。被測試品由于受污染潮濕等因素造成電流泄漏引起的誤差，造成測試不準確，此時必須接好"G"端連線防止泄漏電流引起誤差。 </p> <p> D）干擾過大。如果被測試品受環(huán)境電磁干擾過大，造成儀表讀數(shù)跳動?；蛑羔樆蝿印Ｔ斐勺x數(shù)不準確。 </p> <p> E）人為讀數(shù)錯誤。在用指針式絕緣電阻測試儀測量時，由于人為視角誤差或標度尺誤差造成示值不準確。 </p> <p> F）儀表誤差。儀表本身誤差過大，需要重新校對。 </p><p> 都是越大越好，因為都說絕緣了，比較好是無窮大，但是不現(xiàn)實，所以說絕緣電阻的參數(shù)一般都是說大于多少多少歐，不會說多少歐--多少歐。 </p> <p> 電機絕緣電阻，只要每千伏大于1兆歐就算合格。 </p> <p> 對于一般在用電機，無論是三相還是單相電機的絕緣電阻只要大于0.4---0.5 兆歐就算合格。當然電機的絕緣電阻是越大越好。 </p> <p> 電機的絕緣電阻是指：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。對于一般電機可用500V搖表測試。 METRAHIT 27EX絕緣毫歐萬用表。</p><div style="width:100%;text-align: center;"><img style="max-width: 640px; max-height: 320px;" alt="福建耐壓絕緣電阻測試儀多少錢一個,絕緣電阻測試儀" src="https://tyunfile.71360.com/UploadFile/szmdjd/637377741148203125/7126398.png"></div><p style="text-indent:25px">測量回路在前面講的搖表（兆歐表）中測量回路和顯示部分的合二為一的。它是有一個流比計表頭來完成的，這個表頭中有兩個夾角為60°（左右）的線圈組成，其中一個線圈是并在電壓兩端的，另**圈是串在測量回路中的。表頭指針的偏轉(zhuǎn)角度決定于兩個線圈中的電流比，不同的偏轉(zhuǎn)角度**不同的阻值，測量阻值越小串在測量回路中的線圈電流就越大，那么指針偏轉(zhuǎn)的角度越大。另一個方法是用線性電流表作為測量和顯示。前面用到的流比計表頭中由于線圈中的磁場是非均勻的，當指針在無窮大處，電流線圈正好在磁通密度**強的地方，所以盡管被測電阻很大，流過電流線圈電流很少，此時線圈的偏轉(zhuǎn)角度會較大。當被測電阻較小或為0時，流過電流線圈的電流較大，線圈已偏轉(zhuǎn)到磁通密度較小的地方，由此引起的偏轉(zhuǎn)角度也不會很大。這樣就達到了非線性的矯正。一般兆歐表表頭的阻值顯示需要跨幾個數(shù)量級。但當用線性電流表頭直接串入測量回路中就不行了，在高阻值時的刻度全部擠在一起，無法分辨，為了也要達到非線性矯正就必須在測量回路中加入非線性元件。搖表（絕緣電阻測試儀）怎么測量線路漏電？福建耐壓絕緣電阻測試儀多少錢一個</p><p style="text-indent:25px">耐壓測試儀絕緣電阻。福建耐壓絕緣電阻測試儀多少錢一個</p><p> 絕緣電阻測試儀有哪幾種，有什么區(qū)別 </p> <p> 絕緣電阻測試儀有：兆歐表、數(shù)字兆歐表、數(shù)字式兆歐表、數(shù)顯兆歐表、絕緣表、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、高壓數(shù)字絕緣電阻測試儀、數(shù)字高壓絕緣電阻測試儀、數(shù)字高壓兆歐表、數(shù)字式高壓兆歐表、高壓數(shù)字式兆歐表、數(shù)字絕緣表、數(shù)顯絕緣表、電子式絕緣電阻測試儀、數(shù)字式絕緣電阻測試儀、數(shù)顯式絕緣電阻測試儀、數(shù)顯絕緣電阻測試儀、絕緣電阻儀、數(shù)字式數(shù)字兆歐表絕緣電阻儀、數(shù)字式電動兆歐表、數(shù)字式高壓兆歐表、大功率高壓兆歐表。1.輸出功率大、帶載能力強，抗干擾能力強。2.本表外殼由**度鋁合金組成，機內(nèi)設有等電位保護環(huán)和四階有源低通濾波器，對外界工頻及強電磁場可起到有效的屏蔽作用。對容性試品測量由于輸出短路電流大于1.6mA，很容易使測試電壓迅速上升到輸出電壓的額定值。對于低阻值測量由于采用比例法設計故電壓下落并不影響測試精度。3.不需人力作功，由電池供電，量程可自動轉(zhuǎn)換。一目了然的面板操作和LCD顯示使得測量十分方便和迅捷。4.本表輸出短路電流可直接測量，不需帶載測量進行估算。福建耐壓絕緣電阻測試儀多少錢一個</p><p> 深圳市茂迪機電設備有限公司成立于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)品中精挑細選出一些技術(shù)先進，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 Konica Minolta、美國Radiant、雷云光電Rayclouds、德國Instyument 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