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充油(you)電(dian)(dian)纜(lan)和(he)橡(xiang)塑(su)電(dian)(dian)纜(lan)為(wei)什么(me)投運(yun)后不再(zai)做直流(liu)耐(nai)壓(ya)(ya)試(shi)驗(yan)《規程(cheng)(cheng)》規定(ding)，充油(you)電(dian)(dian)纜(lan)和(he)橡(xiang)塑(su)電(dian)(dian)纜(lan)的(de)(de)主(zhu)(zhu)絕緣(yuan)(yuan)(yuan)在投運(yun)后一般不再(zai)做直流(liu)耐(nai)壓(ya)(ya)試(shi)驗(yan)，僅在特殊情(qing)況下進行(xing)。1.充油(you)點啦。在外(wai)力破壞(huai)時可通過對(dui)(dui)外(wai)護套的(de)(de)絕緣(yuan)(yuan)(yuan)電(dian)(dian)阻(zu)測量(liang)和(he)對(dui)(dui)油(you)壓(ya)(ya)進行(xing)監視，絕緣(yuan)(yuan)(yuan)老化(hua)判斷則可通過對(dui)(dui)油(you)性能變(bian)化(hua)化(hua)驗(yan)進行(xing)，無(wu)需再(zai)進行(xing)直流(liu)耐(nai)壓(ya)(ya)試(shi)驗(yan)。2.橡(xiang)塑(su)電(dian)(dian)纜(lan)。橡(xiang)塑(su)電(dian)(dian)纜(lan)主(zhu)(zhu)絕緣(yuan)(yuan)(yuan)雖為(wei)整(zheng)體結構，但在制造過程(cheng)(cheng)中，會有少量(liang)的(de)(de)副產品（甲烷(wan)氣、聚乙(yi)醇、乙(yi)酰等）溶解在內(nei)部。這(zhe)些(xie)副產品的(de)(de)絕緣(yuan)(yuan)(yuan)電(dian)(dian)阻(zu)系數(shu)較小(xiao)，分布又(you)不均勻，這(zhe)樣在直流(liu)耐(nai)壓(ya)(ya)時電(dian)(dian)場強度(du)也不均勻；另外(wai)，絕緣(yuan)(yuan)(yuan)電(dian)(dian)...
便(bian)(bian)攜(xie)式(shi)接地(di)(di)引下(xia)線(xian)(xian)導(dao)通(tong)(tong)測(ce)試(shi)(shi)(shi)儀(yi)用于(yu)(yu)變電(dian)(dian)(dian)站內電(dian)(dian)(dian)力設備(bei)接地(di)(di)線(xian)(xian)電(dian)(dian)(dian)阻值的(de)測(ce)量，采用鋰電(dian)(dian)(dian)池供(gong)(gong)電(dian)(dian)(dian)的(de)方式(shi)，設計輕巧，便(bian)(bian)于(yu)(yu)現(xian)場使用，4秒左右顯示測(ce)試(shi)(shi)(shi)結果，提(ti)高工作效率(lv)。便(bian)(bian)攜(xie)式(shi)接地(di)(di)引下(xia)線(xian)(xian)導(dao)通(tong)(tong)測(ce)試(shi)(shi)(shi)儀(yi)技術特(te)點(dian)●320×240點(dian)陣的(de)65K真彩色液晶(jing)，強(qiang)光下(xia)顯示清(qing)晰(xi)。●采用交直流(liu)供(gong)(gong)電(dian)(dian)(dian)方式(shi)，便(bian)(bian)于(yu)(yu)多種(zhong)現(xian)場使用。●儀(yi)器采用全新電(dian)(dian)(dian)源技術，zhui大輸出10A，抗干擾性(xing)能強(qiang)。●便(bian)(bian)攜(xie)式(shi)接地(di)(di)引下(xia)線(xian)(xian)導(dao)通(tong)(tong)測(ce)試(shi)(shi)(shi)儀(yi)響(xiang)應速度快，4秒左右可出測(ce)試(shi)(shi)(shi)結果，提(ti)高測(ce)試(shi)(shi)(shi)效率(lv)。●一體(ti)化設計，抗震(zhen)性(xing)能好(hao)，攜(xie)帶方便(bian)(bian)。●四端法測(ce)量，消除測(ce)試(shi)(shi)(shi)線(xian)(xian)的(de)影(ying)響(xiang)...
1、滿足現場所(suo)有試(shi)(shi)驗要求。具(ju)有標準的(de)六相電(dian)流，六相電(dian)壓同(tong)時(shi)輸出，電(dian)流30A/相，電(dian)壓125V/相。六相電(dian)流并(bing)聯可(ke)達(da)180A。既可(ke)對傳統的(de)各(ge)種繼(ji)電(dian)器及保(bao)護裝置進(jin)行試(shi)(shi)驗，也(ye)可(ke)對現代各(ge)種微(wei)(wei)機(ji)(ji)(ji)保(bao)護進(jin)行各(ge)種試(shi)(shi)驗，特別是對變壓器差(cha)動(dong)保(bao)護和備自投裝置，試(shi)(shi)驗更加方便和。2、各(ge)種技術指標*達(da)到電(dian)力部頒發的(de)DL/T624-1997《繼(ji)電(dian)保(bao)護微(wei)(wei)機(ji)(ji)(ji)型試(shi)(shi)驗裝置技術條(tiao)件》的(de)標準。3、微(wei)(wei)機(ji)(ji)(ji)繼(ji)電(dian)保(bao)護測(ce)試(shi)(shi)儀經典的(de)WindowsXP操作界面，人機(ji)(ji)(ji)界面友好，操作簡(jian)便快(kuai)捷；高(gao)性能的(de)嵌入式工業(ye)控制計算機(ji)(ji)(ji)和8.4寸分辨...
數(shu)字接(jie)地(di)(di)電(dian)(dian)阻(zu)(zu)測(ce)(ce)試儀(yi)使用范圍1、使用范圍數(shu)字接(jie)地(di)(di)電(dian)(dian)阻(zu)(zu)測(ce)(ce)試儀(yi)使用于電(dian)(dian)力(li)、郵電(dian)(dian)、鐵路、石油、化工(gong)(gong)、通信、礦(kuang)山等部(bu)門測(ce)(ce)量各種裝置的接(jie)地(di)(di)電(dian)(dian)阻(zu)(zu)以及測(ce)(ce)量低(di)電(dian)(dian)阻(zu)(zu)的導體阻(zu)(zu)值，數(shu)字接(jie)地(di)(di)電(dian)(dian)阻(zu)(zu)測(ce)(ce)試儀(yi)還可以測(ce)(ce)量土壤電(dian)(dian)阻(zu)(zu)率及地(di)(di)電(dian)(dian)壓。2、工(gong)(gong)作原理(li)工(gong)(gong)作原理(li)：由機(ji)內DC/AC變(bian)換器將直流變(bian)為交(jiao)流的低(di)頻恒流，經過(guo)輔(fu)助接(jie)地(di)(di)極C和(he)被測(ce)(ce)物E組成回路，被測(ce)(ce)物上產生(sheng)交(jiao)流壓降，經輔(fu)助接(jie)地(di)(di)極P送入交(jiao)流放大器放大，再經過(guo)檢波送入表頭顯(xian)示。借助倍(bei)率開關可得到(dao)三個(ge)不同(tong)的量限(xian)：0—2Ω、0—20Ω、0—200Ω。3、性能(neng)特點數(shu)字接(jie)地(di)(di)...
單相繼(ji)電(dian)保(bao)護校(xiao)驗(yan)儀使用(yong)前(qian)的(de)檢(jian)查(cha)(cha)(cha)此項目(mu)檢(jian)查(cha)(cha)(cha)的(de)目(mu)的(de)為(wei)：使用(yong)儀器(qi)(qi)或(huo)新一(yi)次使用(yong)儀器(qi)(qi)前(qian)，對儀器(qi)(qi)是(shi)否(fou)正常所進(jin)行的(de)檢(jian)查(cha)(cha)(cha)，以確定儀器(qi)(qi)的(de)工作狀(zhuang)態。如(ru)儀器(qi)(qi)不正常，應及(ji)時同(tong)廠(chang)家。進(jin)行檢(jian)查(cha)(cha)(cha)時，儀器(qi)(qi)與(yu)外(wai)部(bu)設備無任何連(lian)接(jie)線，檢(jian)查(cha)(cha)(cha)步(bu)驟如(ru)下：1、禁止在(zai)電(dian)壓(ya)(ya)、電(dian)流輸出端(duan)子上(shang)接(jie)入電(dian)壓(ya)(ya)、電(dian)流；2、檢(jian)查(cha)(cha)(cha)單相繼(ji)電(dian)保(bao)護校(xiao)驗(yan)儀外(wai)觀是(shi)否(fou)有(you)損，提動儀器(qi)(qi)，儀器(qi)(qi)內部(bu)是(shi)否(fou)有(you)異常聲響(xiang)，儀器(qi)(qi)各(ge)旋(xuan)鈕(niu)、接(jie)線端(duan)子及(ji)螺絲(si)是(shi)否(fou)有(you)松動；3、將電(dian)流、電(dian)壓(ya)(ya)調整(zheng)旋(xuan)鈕(niu)逆時針旋(xuan)至(zhi)小；4、單相繼(ji)電(dian)保(bao)護校(xiao)驗(yan)儀使用(yong)前(qian)，應檢(jian)查(cha)(cha)(cha)供電(dian)電(dian)源(yuan)的(de)可靠性(xing)，用(yong)萬(wan)用(yong)表測量電(dian)源(yuan)電(dian)壓(ya)(ya)...
高(gao)壓絕緣(yuan)電(dian)阻(zu)(zu)測(ce)(ce)試儀的(de)使用方法(fa)(1)測(ce)(ce)量(liang)前必(bi)須將(jiang)被測(ce)(ce)設備電(dian)源切斷,并對(dui)地(di)短(duan)路(lu)放電(dian),決不答應設備帶電(dian)進行(xing)測(ce)(ce)量(liang),以(yi)保證人身和(he)設備的(de)安全(quan)。(2)對(dui)可能感應出高(gao)壓電(dian)的(de)設備,必(bi)須消除這(zhe)種(zhong)可能性后,才能進行(xing)測(ce)(ce)量(liang)。(3)被測(ce)(ce)物表(biao)面要清潔,減少接觸電(dian)阻(zu)(zu),確保測(ce)(ce)量(liang)結果的(de)正確性。(4)測(ce)(ce)量(liang)前要檢查(cha)高(gao)壓絕緣(yuan)電(dian)阻(zu)(zu)測(ce)(ce)試儀是否處于正常(chang)工作狀態(tai),主要檢查(cha)其(qi)“0”和(he)“∞”兩點。即搖動手柄,使電(dian)機達到額(e)定轉速,兆(zhao)歐表(biao)在短(duan)路(lu)時(shi)應指在“0”位(wei)置,開路(lu)時(shi)應指在“∞”位(wei)置。(5)高(gao)壓絕緣(yuan)電(dian)阻(zu)(zu)測(ce)(ce)試儀使用時(shi)應放在平穩、牢固...
全自(zi)動變(bian)頻抗干(gan)擾介(jie)(jie)質損(sun)耗(hao)(hao)測(ce)試儀(yi)(yi)是(shi)發電(dian)(dian)(dian)(dian)廠(chang)、變(bian)電(dian)(dian)(dian)(dian)站等現場(chang)全自(zi)動測(ce)量(liang)各種高壓(ya)(ya)電(dian)(dian)(dian)(dian)力(li)設備介(jie)(jie)損(sun)正切(qie)值及電(dian)(dian)(dian)(dian)容量(liang)的(de)(de)高精(jing)度儀(yi)(yi)器(qi)。主(zhu)電(dian)(dian)(dian)(dian)源由(you)儀(yi)(yi)器(qi)內部(bu)的(de)(de)逆變(bian)器(qi)產生，經變(bian)壓(ya)(ya)器(qi)升壓(ya)(ya)后用(yong)于被(bei)試品測(ce)試。在交(jiao)(jiao)流電(dian)(dian)(dian)(dian)壓(ya)(ya)作(zuo)用(yong)下(xia)，電(dian)(dian)(dian)(dian)介(jie)(jie)質要消耗(hao)(hao)部(bu)分電(dian)(dian)(dian)(dian)能(neng)(neng)，這部(bu)分電(dian)(dian)(dian)(dian)能(neng)(neng)將轉變(bian)為(wei)熱能(neng)(neng)產生損(sun)耗(hao)(hao)。這種能(neng)(neng)量(liang)損(sun)耗(hao)(hao)叫做電(dian)(dian)(dian)(dian)介(jie)(jie)質的(de)(de)損(sun)耗(hao)(hao)。當電(dian)(dian)(dian)(dian)介(jie)(jie)質上施加交(jiao)(jiao)流電(dian)(dian)(dian)(dian)壓(ya)(ya)時(shi)，電(dian)(dian)(dian)(dian)介(jie)(jie)質中的(de)(de)電(dian)(dian)(dian)(dian)壓(ya)(ya)和(he)電(dian)(dian)(dian)(dian)流間成在相角差ψ，ψ的(de)(de)余角δ稱為(wei)介(jie)(jie)質損(sun)耗(hao)(hao)角，δ的(de)(de)正切(qie)tgδ稱為(wei)介(jie)(jie)質損(sun)耗(hao)(hao)角正切(qie)。tgδ值是(shi)用(yong)來衡量(liang)電(dian)(dian)(dian)(dian)介(jie)(jie)質損(sun)耗(hao)(hao)的(de)(de)參數。儀(yi)(yi)器(qi)測(ce)量(liang)線路包(bao)括一標準回路（Cn）和(he)一被(bei)試回路(C...
數(shu)(shu)字(zi)(zi)(zi)兆(zhao)歐(ou)表(biao)(biao)的使(shi)用維(wei)護指南1、數(shu)(shu)字(zi)(zi)(zi)兆(zhao)歐(ou)表(biao)(biao)的使(shi)用維(wei)護測(ce)(ce)量(liang)前要(yao)先切(qie)斷被測(ce)(ce)設(she)備(bei)(bei)的電(dian)(dian)(dian)源，并將設(she)備(bei)(bei)的導電(dian)(dian)(dian)部(bu)分與大(da)地(di)(di)接(jie)(jie)(jie)通，進(jin)行充分放電(dian)(dian)(dian)，以保證(zheng)安(an)全(quan)。用數(shu)(shu)字(zi)(zi)(zi)兆(zhao)歐(ou)表(biao)(biao)測(ce)(ce)量(liang)過的電(dian)(dian)(dian)氣設(she)備(bei)(bei)，也要(yao)及(ji)時接(jie)(jie)(jie)地(di)(di)放電(dian)(dian)(dian)，方可(ke)(ke)進(jin)行再次測(ce)(ce)量(liang)。測(ce)(ce)量(liang)前要(yao)先檢查數(shu)(shu)字(zi)(zi)(zi)兆(zhao)歐(ou)表(biao)(biao)是(shi)(shi)否(fou)(fou)完好，即在數(shu)(shu)字(zi)(zi)(zi)兆(zhao)歐(ou)表(biao)(biao)未接(jie)(jie)(jie)上(shang)被測(ce)(ce)物之前，打開電(dian)(dian)(dian)源開關(guan)，檢測(ce)(ce)數(shu)(shu)字(zi)(zi)(zi)兆(zhao)歐(ou)表(biao)(biao)電(dian)(dian)(dian)池(chi)情況，如果數(shu)(shu)字(zi)(zi)(zi)兆(zhao)歐(ou)表(biao)(biao)電(dian)(dian)(dian)池(chi)欠(qian)壓應及(ji)時更換(huan)電(dian)(dian)(dian)池(chi)，否(fou)(fou)則測(ce)(ce)量(liang)數(shu)(shu)據不可(ke)(ke)取。將測(ce)(ce)試(shi)(shi)線(xian)插入接(jie)(jie)(jie)線(xian)柱“線(xian)(L)和地(di)(di)(E)”，選(xuan)擇測(ce)(ce)試(shi)(shi)電(dian)(dian)(dian)壓，斷開測(ce)(ce)試(shi)(shi)線(xian)，按下測(ce)(ce)試(shi)(shi)按鍵，觀察顯(xian)示是(shi)(shi)否(fou)(fou)數(shu)(shu)字(zi)(zi)(zi)是(shi)(shi)否(fou)(fou)顯(xian)示無窮大(da)。將接(jie)(jie)(jie)...
如何解決接(jie)(jie)地(di)(di)(di)電(dian)(dian)(dian)阻測(ce)(ce)試(shi)儀(yi)讀數(shu)不(bu)準(zhun)確(que)在防雷檢測(ce)(ce)中，引(yin)起(qi)接(jie)(jie)地(di)(di)(di)電(dian)(dian)(dian)阻測(ce)(ce)試(shi)儀(yi)讀數(shu)不(bu)準(zhun)確(que)的(de)因素(su)很多。總結起(qi)來一般有以下九個方面(mian)的(de)原因。，由(you)(you)于接(jie)(jie)地(di)(di)(di)電(dian)(dian)(dian)阻測(ce)(ce)試(shi)儀(yi)是(shi)通過(guo)鐵釬發(fa)射和接(jie)(jie)收電(dian)(dian)(dian)流來測(ce)(ce)試(shi)接(jie)(jie)地(di)(di)(di)體(ti)(ti)的(de)地(di)(di)(di)電(dian)(dian)(dian)阻，所以兩(liang)鐵釬之間及兩(liang)釬與接(jie)(jie)地(di)(di)(di)體(ti)(ti)之間距(ju)離太近時將產生(sheng)相(xiang)互干擾，并由(you)(you)此(ci)產生(sheng)誤(wu)差。因此(ci)，在測(ce)(ce)量(liang)時。接(jie)(jie)地(di)(di)(di)體(ti)(ti)、電(dian)(dian)(dian)壓(ya)極、電(dian)(dian)(dian)流極順(shun)序布置(zhi)(zhi)，三(san)點成直(zhi)線，彼此(ci)相(xiang)距(ju)20m。第二(er)，被測(ce)(ce)接(jie)(jie)地(di)(di)(di)極在“公用地(di)(di)(di)”情(qing)況下，因設備絕緣(yuan)不(bu)好或(huo)短(duan)路，引(yin)起(qi)接(jie)(jie)地(di)(di)(di)裝置(zhi)(zhi)對地(di)(di)(di)產生(sheng)一定(ding)的(de)地(di)(di)(di)電(dian)(dian)(dian)壓(ya)，測(ce)(ce)量(liang)時使讀數(shu)不(bu)穩定(ding)。此(ci)時應斷(duan)(duan)電(dian)(dian)(dian)進行檢測(ce)(ce)，或(huo)有斷(duan)(duan)接(jie)(jie)卡的(de)...
講解(jie)超(chao)(chao)低(di)(di)(di)(di)(di)頻(pin)(pin)(pin)高(gao)(gao)壓(ya)發生(sheng)器(qi)產品特點及技術指標(biao)超(chao)(chao)低(di)(di)(di)(di)(di)頻(pin)(pin)(pin)高(gao)(gao)壓(ya)發生(sheng)器(qi)是進行(xing)超(chao)(chao)低(di)(di)(di)(di)(di)頻(pin)(pin)(pin)交(jiao)流(liu)(liu)(liu)(liu)耐(nai)(nai)(nai)壓(ya)試(shi)驗的(de)高(gao)(gao)壓(ya)測試(shi)裝置，本(ben)裝置適用(yong)于電力部門和(he)工礦企(qi)業在現(xian)場對聚乙烯、交(jiao)聯聚乙烯塑料電纜及其他高(gao)(gao)壓(ya)電氣設備進行(xing)絕緣耐(nai)(nai)(nai)壓(ya)試(shi)驗。本(ben)裝置相對于直流(liu)(liu)(liu)(liu)耐(nai)(nai)(nai)壓(ya)試(shi)驗具(ju)有較小的(de)破壞性且(qie)與(yu)交(jiao)流(liu)(liu)(liu)(liu)工頻(pin)(pin)(pin)耐(nai)(nai)(nai)壓(ya)具(ju)有等(deng)(deng)效性。超(chao)(chao)低(di)(di)(di)(di)(di)頻(pin)(pin)(pin)高(gao)(gao)壓(ya)發生(sheng)器(qi)產品特點1、超(chao)(chao)低(di)(di)(di)(di)(di)頻(pin)(pin)(pin)采用(yong)的(de)變頻(pin)(pin)(pin)技術，產生(sheng)的(de)超(chao)(chao)低(di)(di)(di)(di)(di)頻(pin)(pin)(pin)信號高(gao)(gao)壓(ya)輸(shu)出功率大(da)。2、超(chao)(chao)低(di)(di)(di)(di)(di)頻(pin)(pin)(pin)高(gao)(gao)壓(ya)發生(sheng)器(qi)具(ju)有體積小、重量輕、攜(xie)帶方便(bian)。3、超(chao)(chao)低(di)(di)(di)(di)(di)頻(pin)(pin)(pin)高(gao)(gao)壓(ya)發生(sheng)器(qi)具(ju)有電源過流(liu)(liu)(liu)(liu)、高(gao)(gao)壓(ya)過流(liu)(liu)(liu)(liu)、油箱過熱(re)等(deng)(deng)保護功能。4、超(chao)(chao)低(di)(di)(di)(di)(di)頻(pin)(pin)(pin)設置有調(diao)頻(pin)(pin)(pin)輸(shu)...
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