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手持電(dian)(dian)(dian)能(neng)(neng)質量(liang)(liang)測(ce)量(liang)(liang)儀(yi)(yi)可(ke)(ke)設置(zhi)不(bu)同(tong)(tong)的(de)(de)(de)存儲(chu)間(jian)隔(ge)時間(jian)，按(an)設置(zhi)的(de)(de)(de)時間(jian)間(jian)隔(ge)連續存儲(chu)數(shu)據(ju)。內置(zhi)大容量(liang)(liang)數(shu)據(ju)存儲(chu)器，按(an)1分鐘的(de)(de)(de)時間(jian)間(jian)隔(ge)可(ke)(ke)連續存儲(chu)18個月以(yi)上，能(neng)(neng)滿足長(chang)期監測(ce)試驗點的(de)(de)(de)需要。該手持式電(dian)(dian)(dian)能(neng)(neng)質量(liang)(liang)測(ce)試儀(yi)(yi)具備USB接(jie)口，可(ke)(ke)方便(bian)的(de)(de)(de)將數(shu)據(ju)直接(jie)拷貝到后臺管理計(ji)算(suan)機。與功能(neng)(neng)強大的(de)(de)(de)數(shu)據(ju)管理軟件配合，可(ke)(ke)將實時采樣(yang)數(shu)據(ju)直接(jie)上傳到后臺管理計(ji)算(suan)機，在后臺進行更全面、更迅(xun)速的(de)(de)(de)處理。手持電(dian)(dian)(dian)能(neng)(neng)質量(liang)(liang)測(ce)量(liang)(liang)儀(yi)(yi)可(ke)(ke)顯(xian)示單相電(dian)(dian)(dian)壓(ya)、電(dian)(dian)(dian)流(liu)(liu)波形(xing)并可(ke)(ke)同(tong)(tong)時顯(xian)示三相電(dian)(dian)(dian)壓(ya)、電(dian)(dian)(dian)流(liu)(liu)波形(xing)。所(suo)有測(ce)試界面具備屏(ping)幕鎖定功能(neng)(neng)，以(yi)方便(bian)用戶讀數(shu)和分析數(shu)據(ju)。負(fu)...

試(shi)(shi)(shi)驗工作中，在潮(chao)濕環(huan)境下(xia)使(shi)用絕(jue)緣(yuan)電(dian)阻(zu)測試(shi)(shi)(shi)儀進行(xing)絕(jue)緣(yuan)試(shi)(shi)(shi)驗時，由于(yu)被測試(shi)(shi)(shi)品(pin)表面(mian)(mian)會出現凝露或附(fu)有(you)水膜以及(ji)被試(shi)(shi)(shi)品(pin)表面(mian)(mian)積灰的原因，致(zhi)使(shi)被測物(wu)體(ti)表面(mian)(mian)電(dian)阻(zu)大為(wei)降低，泄漏(lou)電(dian)流上(shang)升增加了電(dian)導，使(shi)絕(jue)緣(yuan)電(dian)阻(zu)值大為(wei)降低，導致(zhi)測量(liang)數(shu)據嚴重失真，具體(ti)分析主要(yao)有(you)如下(xia)原因：1、試(shi)(shi)(shi)品(pin)表面(mian)(mian)有(you)水分;2、放電(dian);3、測試(shi)(shi)(shi)設備自身受潮(chao);4、試(shi)(shi)(shi)品(pin)周圍(wei)環(huan)境。那(nei)么(me)，如果遇有(you)潮(chao)濕環(huan)境進行(xing)試(shi)(shi)(shi)驗，采用取什么(me)樣(yang)的措施和方(fang)法來保(bao)證測試(shi)(shi)(shi)結果達到準確呢？江蘇華(hua)方(fang)電(dian)氣(qi)提醒可以通過下(xia)列方(fang)法來處理，達到完滿的測試(shi)(shi)(shi)效果：一是表面(mian)(mian)擦拭(shi)法，即：用干(gan)布...

電(dian)(dian)力變(bian)壓(ya)(ya)(ya)(ya)器通過(guo)絕(jue)(jue)(jue)緣(yuan)(yuan)電(dian)(dian)阻(zu)(zu)(zu)的測(ce)(ce)量(liang)(liang)，能夠(gou)有效(xiao)地發現某(mou)些絕(jue)(jue)(jue)緣(yuan)(yuan)問(wen)(wen)題及變(bian)壓(ya)(ya)(ya)(ya)器的其他問(wen)(wen)題，例如繞組碰殼、碰鐵芯(xin)、線(xian)(xian)(xian)圈(quan)(quan)之(zhi)(zhi)間短路(lu)等。所以定期檢修(xiu)時(shi)或(huo)大修(xiu)后(hou)。都要(yao)測(ce)(ce)量(liang)(liang)絕(jue)(jue)(jue)緣(yuan)(yuan)電(dian)(dian)阻(zu)(zu)(zu)。測(ce)(ce)量(liang)(liang)變(bian)壓(ya)(ya)(ya)(ya)器絕(jue)(jue)(jue)緣(yuan)(yuan)電(dian)(dian)阻(zu)(zu)(zu)時(shi)，一般要(yao)測(ce)(ce)高(gao)壓(ya)(ya)(ya)(ya)線(xian)(xian)(xian)圈(quan)(quan)對(dui)外(wai)殼、低壓(ya)(ya)(ya)(ya)線(xian)(xian)(xian)圈(quan)(quan)對(dui)外(wai)殼、高(gao)壓(ya)(ya)(ya)(ya)線(xian)(xian)(xian)圈(quan)(quan)對(dui)低壓(ya)(ya)(ya)(ya)線(xian)(xian)(xian)圈(quan)(quan)之(zhi)(zhi)間的絕(jue)(jue)(jue)緣(yuan)(yuan)電(dian)(dian)阻(zu)(zu)(zu)，吊(diao)心(xin)檢修(xiu)時(shi)，還(huan)要(yao)測(ce)(ce)量(liang)(liang)穿心(xin)螺桿對(dui)鐵芯(xin)的絕(jue)(jue)(jue)緣(yuan)(yuan)電(dian)(dian)阻(zu)(zu)(zu)。測(ce)(ce)量(liang)(liang)電(dian)(dian)力變(bian)壓(ya)(ya)(ya)(ya)器絕(jue)(jue)(jue)緣(yuan)(yuan)電(dian)(dian)阻(zu)(zu)(zu)一般選用2500V兆歐(ou)表，但(dan)測(ce)(ce)穿心(xin)螺桿對(dui)鐵芯(xin)的絕(jue)(jue)(jue)緣(yuan)(yuan)電(dian)(dian)阻(zu)(zu)(zu)時(shi)，一般選用1000V兆歐(ou)表。接線(xian)(xian)(xian)方法(fa)：當測(ce)(ce)量(liang)(liang)高(gao)壓(ya)(ya)(ya)(ya)線(xian)(xian)(xian)圈(quan)(quan)或(huo)低壓(ya)(ya)(ya)(ya)線(xian)(xian)(xian)圈(quan)(quan)對(dui)外(wai)殼絕(jue)(jue)(jue)緣(yuan)(yuan)電(dian)(dian)阻(zu)(zu)(zu)時(shi)，兆歐(ou)表上的“線(xian)(xian)(xian)路(lu)”端子接...

直流高壓(ya)電源(yuan)的(de)(de)(de)良(liang)(liang)好(hao)(hao)接(jie)(jie)(jie)(jie)(jie)(jie)(jie)地(di)(di)非常重(zhong)要，理想的(de)(de)(de)地(di)(di)是(shi)不(bu)(bu)存在的(de)(de)(de)，接(jie)(jie)(jie)(jie)(jie)(jie)(jie)地(di)(di)的(de)(de)(de)方法有(you)(you)(you)很多(duo)，接(jie)(jie)(jie)(jie)(jie)(jie)(jie)地(di)(di)有(you)(you)(you)好(hao)(hao)有(you)(you)(you)壞，看你如何去做，重(zhong)新設計你的(de)(de)(de)接(jie)(jie)(jie)(jie)(jie)(jie)(jie)地(di)(di)系(xi)統要比修復一(yi)個不(bu)(bu)好(hao)(hao)的(de)(de)(de)接(jie)(jie)(jie)(jie)(jie)(jie)(jie)地(di)(di)系(xi)統要容(rong)易得多(duo)，接(jie)(jie)(jie)(jie)(jie)(jie)(jie)地(di)(di)的(de)(de)(de)問題不(bu)(bu)容(rong)易和(he)其他問題隔離開來(lai)分析和(he)解(jie)決，下面將(jiang)要談(tan)到實現良(liang)(liang)好(hao)(hao)接(jie)(jie)(jie)(jie)(jie)(jie)(jie)地(di)(di)的(de)(de)(de)方法。首先(xian)要選一(yi)個良(liang)(liang)好(hao)(hao)的(de)(de)(de)接(jie)(jie)(jie)(jie)(jie)(jie)(jie)地(di)(di)參考點，一(yi)個好(hao)(hao)的(de)(de)(de)接(jie)(jie)(jie)(jie)(jie)(jie)(jie)地(di)(di)點可以是(shi)自來(lai)水系(xi)統的(de)(de)(de)金(jin)屬管(guan)(guan)道，金(jin)屬的(de)(de)(de)暖氣管(guan)(guan)道，供電線(xian)路的(de)(de)(de)地(di)(di)下管(guan)(guan)道，大樓的(de)(de)(de)金(jin)屬骨架，或是(shi)建筑物專(zhuan)門的(de)(de)(de)接(jie)(jie)(jie)(jie)(jie)(jie)(jie)地(di)(di)端。用(yong)粗導(dao)線(xian)將(jiang)直流高壓(ya)電源(yuan)的(de)(de)(de)接(jie)(jie)(jie)(jie)(jie)(jie)(jie)地(di)(di)柱或是(shi)相(xiang)應的(de)(de)(de)接(jie)(jie)(jie)(jie)(jie)(jie)(jie)地(di)(di)座和(he)你選好(hao)(hao)的(de)(de)(de)接(jie)(jie)(jie)(jie)(jie)(jie)(jie)地(di)(di)參考點直接(jie)(jie)(jie)(jie)(jie)(jie)(jie)相(xiang)連。大地(di)(di)永遠是(shi)通用(yong)的(de)(de)(de)也是(shi)好(hao)(hao)...

串(chuan)聯(lian)(lian)諧(xie)振(zhen)試(shi)驗(yan)裝置運用(yong)(yong)串(chuan)聯(lian)(lian)諧(xie)振(zhen)原(yuan)理(li)，利用(yong)(yong)較小容(rong)量的(de)(de)(de)(de)供電(dian)電(dian)源(yuan)(yuan)可完成(cheng)(cheng)等效于供電(dian)電(dian)源(yuan)(yuan)30～150倍容(rong)量的(de)(de)(de)(de)試(shi)驗(yan)，解決了現場(chang)試(shi)驗(yan)電(dian)源(yuan)(yuan)的(de)(de)(de)(de)容(rong)量不足問(wen)(wen)題,適用(yong)(yong)于大(da)容(rong)量、高電(dian)壓(ya)試(shi)品的(de)(de)(de)(de)交接耐壓(ya)試(shi)驗(yan)和預防性試(shi)驗(yan)。下面我就串(chuan)聯(lian)(lian)諧(xie)振(zhen)試(shi)驗(yan)裝置在(zai)使(shi)用(yong)(yong)過程中的(de)(de)(de)(de)常(chang)見的(de)(de)(de)(de)一些問(wen)(wen)題作一些說明。問(wen)(wen)題一：在(zai)電(dian)動(dong)機中，電(dian)容(rong)與啟(qi)動(dong)線(xian)圈串(chuan)聯(lian)(lian)，形成(cheng)(cheng)串(chuan)聯(lian)(lian)諧(xie)振(zhen)電(dian)路，那(nei)么啟(qi)動(dong)線(xian)圈的(de)(de)(de)(de)電(dian)壓(ya)上(shang)升，電(dian)動(dong)機功率會(hui)提高，那(nei)電(dian)流有什么變化呢(ni)，主要是(shi)(shi)(shi)在(zai)更換(huan)更高電(dian)容(rong)的(de)(de)(de)(de)時候，會(hui)使(shi)電(dian)動(dong)機更加有力，就是(shi)(shi)(shi)功率上(shang)升，但是(shi)(shi)(shi)是(shi)(shi)(shi)使(shi)電(dian)壓(ya)上(shang)升，還是(shi)(shi)(shi)也會(hui)使(shi)電(dian)流增大(da)呢(ni)，串(chuan)聯(lian)(lian)諧(xie)...

三(san)(san)通(tong)道(dao)(dao)直(zhi)(zhi)(zhi)流電(dian)阻(zu)快速(su)測(ce)試(shi)儀(yi)的(de)出現，直(zhi)(zhi)(zhi)接(jie)(jie)解決了(le)測(ce)量(liang)(liang)(liang)大(da)(da)容量(liang)(liang)(liang)變壓器(qi)三(san)(san)相(xiang)繞(rao)組(zu)直(zhi)(zhi)(zhi)流電(dian)阻(zu)的(de)難題，時間更短，測(ce)量(liang)(liang)(liang)也更加便(bian)捷。很多(duo)人在(zai)使(shi)用三(san)(san)通(tong)道(dao)(dao)直(zhi)(zhi)(zhi)流電(dian)阻(zu)快速(su)測(ce)試(shi)儀(yi)前，都因為(wei)接(jie)(jie)錯線(xian)而(er)無法(fa)正確(que)的(de)完(wan)成測(ce)量(liang)(liang)(liang)工作，這里給大(da)(da)家介紹一下三(san)(san)通(tong)道(dao)(dao)直(zhi)(zhi)(zhi)流電(dian)阻(zu)快速(su)測(ce)試(shi)儀(yi)測(ce)量(liang)(liang)(liang)接(jie)(jie)線(xian)方法(fa)。1、將(jiang)電(dian)源線(xian)把儀(yi)器(qi)與(yu)外部AC220V電(dian)源連接(jie)(jie)，將(jiang)接(jie)(jie)地端子(zi)(zi)與(yu)大(da)(da)地連接(jie)(jie)。2、然后依(yi)次(ci)將(jiang)接(jie)(jie)線(xian)端子(zi)(zi)的(de)四(si)個測(ce)試(shi)鉗（黃綠紅黑）分(fen)別(bie)接(jie)(jie)到(dao)高壓側的(de)A、B、C、O。也可以將(jiang)接(jie)(jie)線(xian)端子(zi)(zi)的(de)四(si)個測(ce)試(shi)鉗（黃綠紅黑）分(fen)別(bie)接(jie)(jie)到(dao)低壓側的(de)a、b、c、o，如果只有(you)三(san)(san)個套管(guan)，可...

繼電(dian)(dian)(dian)保護(hu)測(ce)試儀只要是三(san)相系(xi)統(tong)(tong)，就(jiu)能分(fen)解出(chu)這(zhe)三(san)個分(fen)量，它們(men)是為了分(fen)析(xi)在系(xi)統(tong)(tong)電(dian)(dian)(dian)壓(ya)、電(dian)(dian)(dian)流出(chu)現(xian)不對(dui)稱(cheng)(cheng)現(xian)象時(shi)，把(ba)三(san)相不對(dui)稱(cheng)(cheng)的分(fen)相分(fen)解成對(dui)稱(cheng)(cheng)分(fen)量（正(zheng)、負(fu)序(xu)）以及同向的零序(xu)分(fen)量。在正(zheng)常(chang)的情況(kuang)(kuang)下(xia)(xia)(xia)，繼電(dian)(dian)(dian)保護(hu)測(ce)試儀只會擁(yong)有正(zheng)序(xu)分(fen)量，當系(xi)統(tong)(tong)出(chu)現(xian)故障(zhang)時(shi)，三(san)相就(jiu)會變得不對(dui)稱(cheng)(cheng)，這(zhe)時(shi)就(jiu)能分(fen)解出(chu)有幅(fu)值的負(fu)序(xu)和(he)零序(xu)分(fen)量度，又(you)是只會有其中的一(yi)種，通(tong)(tong)過檢測(ce)這(zhe)兩個不應在正(zheng)常(chang)情況(kuang)(kuang)下(xia)(xia)(xia)出(chu)現(xian)的分(fen)量，就(jiu)能得知(zhi)到系(xi)統(tong)(tong)出(chu)現(xian)什么故障(zhang)。再通(tong)(tong)過一(yi)系(xi)列相關的數(shu)據就(jiu)能分(fen)析(xi)出(chu)各(ge)種系(xi)統(tong)(tong)故障(zhang)的大致情況(kuang)(kuang)，方法(fa)如下(xia)(xia)(xia)：畫出(chu)系(xi)統(tong)(tong)的三(san)相電(dian)(dian)(dian)流的向量圖，（電(dian)(dian)(dian)...

目前主要介紹(shao)一種針對低(di)壓(ya)電(dian)(dian)(dian)(dian)(dian)纜(lan)(lan)及(ji)110Kv以上電(dian)(dian)(dian)(dian)(dian)壓(ya)等級的(de)(de)直敷電(dian)(dian)(dian)(dian)(dian)力(li)(li)(li)電(dian)(dian)(dian)(dian)(dian)纜(lan)(lan)護(hu)層故(gu)障(zhang)的(de)(de)故(gu)障(zhang)定(ding)向與定(ding)位(wei)的(de)(de)方法(fa)(fa)(fa)——脈(mo)沖(chong)跨(kua)步法(fa)(fa)(fa)。在故(gu)障(zhang)電(dian)(dian)(dian)(dian)(dian)纜(lan)(lan)任一端周(zhou)期性的(de)(de)施加電(dian)(dian)(dian)(dian)(dian)壓(ya)脈(mo)沖(chong)信(xin)號，利用(yong)電(dian)(dian)(dian)(dian)(dian)纜(lan)(lan)沿線(xian)的(de)(de)土壤中(zhong)或(huo)地面產生沿電(dian)(dian)(dian)(dian)(dian)纜(lan)(lan)走向依次遞(di)減或(huo)遞(di)增的(de)(de)“跨(kua)步”電(dian)(dian)(dian)(dian)(dian)壓(ya)脈(mo)沖(chong)，確定(ding)故(gu)障(zhang)點的(de)(de)方向和具體位(wei)置。根據了(le)解，該方法(fa)(fa)(fa)是測試1Kv低(di)壓(ya)電(dian)(dian)(dian)(dian)(dian)纜(lan)(lan)故(gu)障(zhang)點及(ji)110Kv以上電(dian)(dian)(dian)(dian)(dian)壓(ya)等級的(de)(de)直敷電(dian)(dian)(dian)(dian)(dian)力(li)(li)(li)電(dian)(dian)(dian)(dian)(dian)纜(lan)(lan)護(hu)層故(gu)障(zhang)的(de)(de)一種快(kuai)速有效的(de)(de)方法(fa)(fa)(fa)。1概述電(dian)(dian)(dian)(dian)(dian)纜(lan)(lan)用(yong)量在整個電(dian)(dian)(dian)(dian)(dian)力(li)(li)(li)傳輸線(xian)路中(zhong)所占的(de)(de)比(bi)例日(ri)益提高，出于施工成本和其他各(ge)種因素的(de)(de)考(kao)慮(lv)，電(dian)(dian)(dian)(dian)(dian)力(li)(li)(li)電(dian)(dian)(dian)(dian)(dian)纜(lan)(lan)特別是1Kv低(di)壓(ya)電(dian)(dian)(dian)(dian)(dian)...

高(gao)壓(ya)(ya)(ya)試驗變(bian)壓(ya)(ya)(ya)器(qi)(qi)在正常(chang)運(yun)行(xing)時(shi)，會發(fa)(fa)出(chu)連續均勻(yun)的(de)(de)(de)(de)“嗡嗡”聲(sheng)。如果產生(sheng)(sheng)的(de)(de)(de)(de)聲(sheng)音不(bu)均勻(yun)或(huo)(huo)有(you)其(qi)他特殊的(de)(de)(de)(de)響聲(sheng)，就應視為變(bian)壓(ya)(ya)(ya)器(qi)(qi)運(yun)行(xing)不(bu)正常(chang)，并(bing)可根據聲(sheng)音的(de)(de)(de)(de)不(bu)同查找出(chu)故障，進行(xing)及時(shi)處(chu)理。主要有(you)以下(xia)幾方面故障：電(dian)網發(fa)(fa)生(sheng)(sheng)過電(dian)壓(ya)(ya)(ya)。電(dian)網發(fa)(fa)生(sheng)(sheng)單相接(jie)地或(huo)(huo)電(dian)磁共振時(shi)，變(bian)壓(ya)(ya)(ya)器(qi)(qi)聲(sheng)音比平常(chang)尖銳。出(chu)現(xian)這種情(qing)況(kuang)時(shi)，可結合(he)電(dian)壓(ya)(ya)(ya)表計(ji)的(de)(de)(de)(de)指示進行(xing)綜合(he)判斷。變(bian)壓(ya)(ya)(ya)器(qi)(qi)過載運(yun)行(xing)。負荷(he)變(bian)化大，又因諧(xie)波(bo)作(zuo)用，高(gao)壓(ya)(ya)(ya)試驗變(bian)壓(ya)(ya)(ya)器(qi)(qi)內瞬間(jian)發(fa)(fa)生(sheng)(sheng)“哇哇”聲(sheng)或(huo)(huo)“咯咯”的(de)(de)(de)(de)間(jian)歇聲(sheng)，監視測量儀表指針發(fa)(fa)生(sheng)(sheng)擺動，且音調高(gao)、音量大。變(bian)壓(ya)(ya)(ya)器(qi)(qi)夾件或(huo)(huo)螺絲(si)釘松動。聲(sheng)音比平常(chang)...

CMLD精密露(lu)(lu)(lu)點(dian)(dian)儀數(shu)據存(cun)儲(chu)，采用大容量(liang)設計(ji)，多(duo)可存(cun)儲(chu)50組測試數(shu)據。曲(qu)線功能(neng)，大屏幕(mu)曲(qu)線顯(xian)(xian)示露(lu)(lu)(lu)點(dian)(dian)測量(liang)過(guo)程。顯(xian)(xian)示清晰：液晶屏直接(jie)顯(xian)(xian)示露(lu)(lu)(lu)點(dian)(dian)、微水(shui)（ppm）、環境(jing)溫度、環境(jing)濕(shi)度、時間及日期等內(nei)(nei)容。RS232接(jie)口：可與串口打印機相連(lian)(lian)，進(jin)行數(shu)據打印。內(nei)(nei)置(zhi)電源：內(nei)(nei)置(zhi)4Ah可充鋰(li)電池(chi)(chi)，一次充足可連(lian)(lian)續工作10小時。CMLD精密露(lu)(lu)(lu)點(dian)(dian)儀*的超(chao)大儲(chu)存(cun)功能(neng)，電量(liang)顯(xian)(xian)示。操(cao)作簡單、攜(xie)帶(dai)方便(bian)。重復性好、響應速度快(kuai)。鋰(li)電池(chi)(chi)，交直流電兩(liang)用，自(zi)動切換，過(guo)充過(guo)放(fang)保護功能(neng)，技術參數(shu)，測量(liang)范(fan)圍，露(lu)(lu)(lu)點(dian)(dian)-80～+20℃（...