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從電(dian)(dian)工學上說，接(jie)(jie)(jie)(jie)(jie)觸(chu)器(qi)(qi)是可以快速切斷交(jiao)流(liu)(liu)(liu)與直流(liu)(liu)(liu)主回路和可頻繁(fan)地接(jie)(jie)(jie)(jie)(jie)通與大電(dian)(dian)流(liu)(liu)(liu)控制(zhi)電(dian)(dian)路的裝置，不(bu)僅如此(ci)，接(jie)(jie)(jie)(jie)(jie)觸(chu)器(qi)(qi)在用于(yu)電(dian)(dian)動機的控制(zhi)對象時，還具(ju)有低電(dian)(dian)壓(ya)釋放(fang)保護(hu)作用。接(jie)(jie)(jie)(jie)(jie)觸(chu)器(qi)(qi)控制(zhi)容量大，適用于(yu)頻繁(fan)操作和遠距離控制(zhi)。是自動控制(zhi)系(xi)統中的重(zhong)要元件之一，微機繼(ji)電(dian)(dian)保護(hu)測試儀(yi)當中肯定也少不(bu)了這一點。今(jin)天小編May就為大家來講解(jie)下接(jie)(jie)(jie)(jie)(jie)觸(chu)器(qi)(qi)都有哪幾類。一、真空(kong)接(jie)(jie)(jie)(jie)(jie)觸(chu)器(qi)(qi)真空(kong)接(jie)(jie)(jie)(jie)(jie)觸(chu)器(qi)(qi)(LC1-V*)其(qi)組成部分與一般空(kong)氣(qi)式接(jie)(jie)(jie)(jie)(jie)觸(chu)器(qi)(qi)相似，不(bu)同的是真空(kong)接(jie)(jie)(jie)(jie)(jie)觸(chu)器(qi)(qi)的觸(chu)頭密封在真空(kong)滅弧室中。其(qi)特點是接(jie)(jie)(jie)(jie)(jie)通/分斷電(dian)(dian)流(liu)(liu)(liu)大，額定操作電(dian)(dian)壓(ya)...
直(zhi)流(liu)電(dian)阻測(ce)試(shi)儀的(de)性(xing)能(neng)特點具體說來(lai)有以下(xia)幾點：1、采用國外進(jin)口元(yuan)器(qi)件，軟件設計(ji)多重(zhong)抗干擾程序(xu)，測(ce)量結果(guo)準確(que)度(du)高，重(zhong)復性(xing)好。2、內附可充(chong)電(dian)電(dian)池組(zu)，現場測(ce)試(shi)不(bu)需交流(liu)電(dian)源，使(shi)用方便(bian)。3、輸出充(chong)電(dian)電(dian)流(liu)大可達2A，測(ce)試(shi)速(su)度(du)快。4、電(dian)阻測(ce)量范圍為1μΩ-2KΩ，量程廣。5、液晶顯(xian)示(shi)方式，可顯(xian)示(shi)測(ce)量電(dian)流(liu)和測(ce)量時間(jian)，適應各種(zhong)不(bu)同的(de)工(gong)作環境(jing)。全部漢字菜單及操(cao)作提示(shi)，直(zhi)觀(guan)方便(bian)。6、保(bao)護(hu)功(gong)能(neng)完善，能(neng)可靠保(bao)護(hu)反(fan)電(dian)勢(shi)對(dui)儀器(qi)的(de)沖擊(ji)，具有自動(dong)放(fang)電(dian)指示(shi)功(gong)能(neng)。7、采用高速(su)16位A/D轉換器(qi)，測(ce)量數據穩定(ding)，重(zhong)復性(xing)...
開關(guan)(guan)回(hui)(hui)路電(dian)(dian)(dian)(dian)(dian)阻(zu)(zu)(zu)測試儀是根據中華人(ren)民共和國新電(dian)(dian)(dian)(dian)(dian)力(li)執行標準(zhun)(zhun)DL/T845.4-2004，采(cai)用高頻開關(guan)(guan)電(dian)(dian)(dian)(dian)(dian)源(yuan)技術和數字(zi)電(dian)(dian)(dian)(dian)(dian)路技術相(xiang)結合設計而(er)成。它適用于開關(guan)(guan)控(kong)制設備回(hui)(hui)路電(dian)(dian)(dian)(dian)(dian)阻(zu)(zu)(zu)的測量(liang)。其測試電(dian)(dian)(dian)(dian)(dian)流(liu)采(cai)用國家標準(zhun)(zhun)推薦(jian)的直流(liu)100A。可在(zai)電(dian)(dian)(dian)(dian)(dian)流(liu)100A的情(qing)況下直接測得回(hui)(hui)路電(dian)(dian)(dian)(dian)(dian)阻(zu)(zu)(zu)，并用數字(zi)顯示(shi)出來。該儀器測量(liang)準(zhun)(zhun)確、性能穩定，符合電(dian)(dian)(dian)(dian)(dian)力(li)、供電(dian)(dian)(dian)(dian)(dian)部(bu)門現場高壓開關(guan)(guan)維修和高壓開關(guan)(guan)廠回(hui)(hui)路電(dian)(dian)(dian)(dian)(dian)阻(zu)(zu)(zu)測試的要求。1、大(da)電(dian)(dian)(dian)(dian)(dian)流(liu)：采(cai)用新電(dian)(dian)(dian)(dian)(dian)源(yuan)技術，能長時間連(lian)續輸出大(da)電(dian)(dian)(dian)(dian)(dian)流(liu)，克服了脈沖式(shi)電(dian)(dian)(dian)(dian)(dian)源(yuan)瞬間電(dian)(dian)(dian)(dian)(dian)流(liu)的弊(bi)端，可以有(you)效的擊穿(chuan)開關(guan)(guan)觸(chu)頭氧化(hua)膜，得到...
高(gao)溫(wen)(wen)(wen)(wen)(wen)的(de)在(zai)線測(ce)溫(wen)(wen)(wen)(wen)(wen)儀(yi)一般應用(yong)于鋼廠或是加(jia)工(gong)(gong)爐附近，因(yin)(yin)為溫(wen)(wen)(wen)(wen)(wen)度(du)高(gao)，現場的(de)設備不(bu)一定(ding)都(dou)(dou)處于潔(jie)(jie)凈狀態，所以在(zai)使用(yong)在(zai)線測(ce)溫(wen)(wen)(wen)(wen)(wen)儀(yi)中好的(de)結果就是在(zai)測(ce)溫(wen)(wen)(wen)(wen)(wen)儀(yi)外面加(jia)一風冷套或是水冷套來保(bao)護在(zai)線測(ce)溫(wen)(wen)(wen)(wen)(wen)儀(yi)，如不(bu)妥善保(bao)護溫(wen)(wen)(wen)(wen)(wen)度(du)儀(yi)會造(zao)成測(ce)量精度(du)下降(jiang)或儀(yi)器損壞(huai)。所以要(yao)選擇合適(shi)的(de)附件(jian)改(gai)善工(gong)(gong)作(zuo)環境(jing)。固定(ding)式在(zai)線測(ce)溫(wen)(wen)(wen)(wen)(wen)儀(yi)測(ce)量通道及鏡(jing)頭(tou)清(qing)潔(jie)(jie)指示：應保(bao)證測(ce)量通道的(de)清(qing)潔(jie)(jie)，灰(hui)(hui)塵、煙塵都(dou)(dou)會影響輻射能(neng)量的(de)傳遞(di)，降(jiang)低測(ce)量精度(du)。測(ce)溫(wen)(wen)(wen)(wen)(wen)儀(yi)光學鏡(jing)頭(tou)必須保(bao)持清(qing)潔(jie)(jie)，避免因(yin)(yin)粘有(you)灰(hui)(hui)塵、煙塵等污染物(wu)而導致測(ce)量誤差甚(shen)至損壞(huai)鏡(jing)頭(tou)，若鏡(jing)頭(tou)粘有(you)灰(hui)(hui)塵。可用(yong)清(qing)潔(jie)(jie)的(de)棉簽...
手(shou)(shou)持電(dian)(dian)能質(zhi)量(liang)(liang)(liang)測(ce)(ce)量(liang)(liang)(liang)儀5分鐘(zhong)無操作液晶顯示自(zi)動(dong)關閉，以便大(da)程度的(de)延長電(dian)(dian)池(chi)工作時(shi)(shi)間(jian)。導電(dian)(dian)硅膠按鍵(jian)，手(shou)(shou)感(gan)好、壽命長、設計合理(li)、操作方便。內置大(da)容(rong)量(liang)(liang)(liang)、高性能鋰離(li)子充電(dian)(dian)電(dian)(dian)池(chi)，充滿電(dian)(dian)連(lian)續工作6小時(shi)(shi)以上。體(ti)積(ji)小、重量(liang)(liang)(liang)輕，便于攜(xie)帶，既(ji)可用于現(xian)場測(ce)(ce)量(liang)(liang)(liang)使用，也可用做實(shi)(shi)驗室的(de)標準計量(liang)(liang)(liang)設備。手(shou)(shou)持電(dian)(dian)能質(zhi)量(liang)(liang)(liang)測(ce)(ce)量(liang)(liang)(liang)儀具備萬年歷、時(shi)(shi)鐘(zhong)功(gong)能，實(shi)(shi)時(shi)(shi)顯示日期及時(shi)(shi)間(jian)。可在現(xian)場檢測(ce)(ce)的(de)同(tong)時(shi)(shi)保存測(ce)(ce)試數據和結果，并通過(guo)串口上傳至計算機(ji)，通過(guo)后臺管理(li)軟件（選配件）實(shi)(shi)現(xian)數據微機(ji)化管理(li)，具備強(qiang)大(da)的(de)報表功(gong)能。采用大(da)屏幕進口彩(cai)色液晶作為...
傳輸(shu)(shu)：電(dian)(dian)(dian)(dian)(dian)(dian)能(neng)的傳輸(shu)(shu)，它和(he)變電(dian)(dian)(dian)(dian)(dian)(dian)、配電(dian)(dian)(dian)(dian)(dian)(dian)、用電(dian)(dian)(dian)(dian)(dian)(dian)一起(qi)，構成(cheng)電(dian)(dian)(dian)(dian)(dian)(dian)力系統的整體(ti)功能(neng)。通過輸(shu)(shu)電(dian)(dian)(dian)(dian)(dian)(dian)，把相距甚遠(yuan)的(可達數千千米)發(fa)電(dian)(dian)(dian)(dian)(dian)(dian)廠和(he)負荷中(zhong)心(xin)起(qi)來(lai)(lai)，使電(dian)(dian)(dian)(dian)(dian)(dian)能(neng)的開發(fa)和(he)利用超越地域的限制(zhi)。和(he)其他能(neng)源(yuan)的傳輸(shu)(shu)(如輸(shu)(shu)煤、輸(shu)(shu)油等(deng))相比，輸(shu)(shu)電(dian)(dian)(dian)(dian)(dian)(dian)的損耗小、效益(yi)高、靈活方(fang)便(bian)、易于調控(kong)、環境污(wu)染少;輸(shu)(shu)電(dian)(dian)(dian)(dian)(dian)(dian)還可以(yi)將不(bu)同地點的發(fa)電(dian)(dian)(dian)(dian)(dian)(dian)廠連接起(qi)來(lai)(lai)，實行(xing)峰谷調節。輸(shu)(shu)電(dian)(dian)(dian)(dian)(dian)(dian)是電(dian)(dian)(dian)(dian)(dian)(dian)能(neng)利用*性的重(zhong)要體(ti)現，在(zai)現代化社會中(zhong)，它是重(zhong)要的能(neng)源(yuan)動脈。輸(shu)(shu)電(dian)(dian)(dian)(dian)(dian)(dian)線路(lu)按結構形式(shi)可分(fen)為(wei)架(jia)空輸(shu)(shu)電(dian)(dian)(dian)(dian)(dian)(dian)線路(lu)和(he)地下輸(shu)(shu)電(dian)(dian)(dian)(dian)(dian)(dian)線路(lu)。前者由線路(lu)桿(gan)塔(ta)、導線、絕緣子等(deng)構成(cheng)，架(jia)設在(zai)地面上;后者...
一(yi)、系統概述變(bian)(bian)電(dian)設(she)備狀態(tai)檢修是(shi)目前(qian)電(dian)力系統提高檢修效率，降低(di)檢修成本(ben)的(de)(de)(de)有效手段。隨(sui)著(zhu)專家系統的(de)(de)(de)不斷發展(zhan)，*技術(shu)將一(yi)些(xie)不能(neng)依靠數據(ju)推導和計算(suan)的(de)(de)(de)故(gu)(gu)障(zhang)(zhang)診斷帶入了(le)一(yi)個新的(de)(de)(de)領域，它可(ke)利用系統建立(li)的(de)(de)(de)專家數據(ju)庫(ku)和推理(li)機(ji)，以及系統本(ben)身具有的(de)(de)(de)自學習(xi)能(neng)力進行(xing)有效可(ke)靠的(de)(de)(de)故(gu)(gu)障(zhang)(zhang)診斷，使得設(she)備狀態(tai)的(de)(de)(de)判斷更加準確(que)和及時。對于(yu)眾(zhong)多(duo)變(bian)(bian)電(dian)設(she)備來說，根據(ju)以往(wang)運行(xing)故(gu)(gu)障(zhang)(zhang)的(de)(de)(de)統計數據(ju)，變(bian)(bian)壓器(qi)的(de)(de)(de)故(gu)(gu)障(zhang)(zhang)率在(zai)運行(xing)故(gu)(gu)障(zhang)(zhang)中能(neng)夠占到70%以上，也(ye)就是(shi)說變(bian)(bian)壓器(qi)安全可(ke)靠的(de)(de)(de)運行(xing)是(shi)變(bian)(bian)電(dian)站正常穩定運行(xing)的(de)(de)(de)基礎，因此(ci)對于(yu)變(bian)(bian)壓器(qi)的(de)(de)(de)在(zai)線監測和故(gu)(gu)障(zhang)(zhang)診斷是(shi)...
由(you)于化(hua)(hua)工生產(chan)操作流(liu)程(cheng)(cheng)化(hua)(hua)、全封閉等(deng)特點(dian)，尤其是現(xian)代(dai)化(hua)(hua)的(de)流(liu)程(cheng)(cheng)企業(ye)自動化(hua)(hua)水平高，工藝(yi)(yi)操作與檢測(ce)儀(yi)(yi)表(biao)緊密相連(lian)，工藝(yi)(yi)人(ren)員常通過檢測(ce)儀(yi)(yi)表(biao)顯(xian)示(shi)的(de)各類工藝(yi)(yi)參數，如溫(wen)度、流(liu)量、壓力(li)和(he)液(ye)位、原(yuan)料的(de)成(cheng)分等(deng)來判斷工藝(yi)(yi)生產(chan)是否(fou)正(zheng)常，產(chan)品質量是否(fou)合格(ge)，并根據(ju)儀(yi)(yi)表(biao)指示(shi)做(zuo)出提量、減產(chan)甚至(zhi)停產(chan)等(deng)決定(ding)。因此熟練掌握自動化(hua)(hua)裝置(zhi)的(de)故(gu)障診斷方法就顯(xian)得尤為重要。流(liu)程(cheng)(cheng)生產(chan)過程(cheng)(cheng)中經常出現(xian)自動化(hua)(hua)裝置(zhi)故(gu)障現(xian)象，由(you)于檢測(ce)與控制過程(cheng)(cheng)中出現(xian)的(de)故(gu)障現(xian)象比較復(fu)雜，正(zheng)確判斷、及時處理故(gu)障，不但(dan)直接關系到(dao)生產(chan)的(de)安全、穩定(ding)、產(chan)品質量及原(yuan)料的(de)消...
CMLD精(jing)密露點儀(yi)測量(liang)(liang)范圍：-100～+20℃，-80～+20℃,-60～+60℃中間(jian)量(liang)(liang)程可選。精(jing)度：≤±1℃重復性：≤±1℃分辨率(lv)：0.1℃樣氣流(liu)量(liang)(liang)：1000～1500mL/min；樣氣壓(ya)力：0.05MPa≤入口壓(ya)力≤0.5Mpa；響(xiang)應時間(jian)：T90≤3分鐘；工作電(dian)源(yuan)：1：220VAC，50Hz；CMLD精(jing)密露點儀(yi)連接電(dian)源(yuan)線插頭，開啟電(dian)源(yuan)開關，指示(shi)燈亮(liang)(liang)系統(tong)供電(dian)正常，溫(wen)(wen)(wen)控儀(yi)表顯示(shi)當(dang)前(qian)溫(wen)(wen)(wen)度。按標準設(she)定控溫(wen)(wen)(wen)儀(yi)表的溫(wen)(wen)(wen)度，按下“工作指示(shi)”按鈕，指示(shi)燈亮(liang)(liang)系統(tong)啟...
絕緣在線(xian)監(jian)測(ce)(ce)損耗因數(shu)tgδ的(de)(de)(de)方(fang)(fang)法很多，如電(dian)(dian)橋(qiao)法、全數(shu)字測(ce)(ce)量法等，常用的(de)(de)(de)方(fang)(fang)法是監(jian)測(ce)(ce)絕緣體的(de)(de)(de)泄(xie)(xie)漏(lou)電(dian)(dian)流(liu)及PT信號(hao)，通(tong)過(guo)計(ji)算(suan)泄(xie)(xie)漏(lou)電(dian)(dian)流(liu)和電(dian)(dian)壓的(de)(de)(de)相角差而得到介(jie)(jie)質損耗角正(zheng)切值tgδ的(de)(de)(de)數(shu)值。其測(ce)(ce)量原理大都使用硬件鑒相及過(guo)零比較的(de)(de)(de)方(fang)(fang)法。目前(qian)的(de)(de)(de)絕緣在線(xian)監(jian)測(ce)(ce)產(chan)品基本(ben)都是用快(kuai)速(su)傅立(li)葉變換(huan)(FFT)的(de)(de)(de)方(fang)(fang)法來求介(jie)(jie)損。取運行(xing)(xing)設(she)備PT的(de)(de)(de)標(biao)準電(dian)(dian)壓信號(hao)與設(she)備泄(xie)(xie)漏(lou)電(dian)(dian)流(liu)信號(hao)直接(jie)經高(gao)速(su)A/D采樣轉換(huan)后送(song)入計(ji)算(suan)機，通(tong)過(guo)軟件的(de)(de)(de)方(fang)(fang)法對信號(hao)進(jin)行(xing)(xing)頻譜(pu)分析(xi)，僅抽取50Hz的(de)(de)(de)基本(ben)信號(hao)進(jin)行(xing)(xing)計(ji)算(suan)求出介(jie)(jie)損。這種方(fang)(fang)法能(neng)消(xiao)除(chu)各(ge)種高(gao)次諧波的(de)(de)(de)干(gan)...
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