Related articles
電(dian)纜(lan)外護套(tao)測(ce)(ce)量儀(yi)性能(neng):地埋電(dian)纜(lan)外護套(tao)故障(zhang)的測(ce)(ce)尋,同電(dian)力(li)電(dian)纜(lan)故障(zhang)探測(ce)(ce)一樣,一般(ban)要經過“初測(ce)(ce)"和“定點"二個步驟,有時甚(shen)至還需要查找電(dian)纜(lan)路(lu)徑。
聯系電話:17351382898
電纜外護套測量儀性(xing)(xing)能(neng):地(di)埋電(dian)(dian)(dian)(dian)纜(lan)(lan)(lan)(lan)外(wai)護(hu)(hu)套故(gu)(gu)障的(de)測(ce)尋,同電(dian)(dian)(dian)(dian)力電(dian)(dian)(dian)(dian)纜(lan)(lan)(lan)(lan)故(gu)(gu)障探(tan)測(ce)一樣,一般要經過“初(chu)測(ce)”和“定點(dian)(dian)”二(er)個步驟,有時(shi)甚(shen)至還需要查找電(dian)(dian)(dian)(dian)纜(lan)(lan)(lan)(lan)路徑。外(wai)護(hu)(hu)套接地(di)故(gu)(gu)障的(de)初(chu)測(ce)(測(ce)距(ju))一般采用(yong)壓降(jiang)法(fa)和電(dian)(dian)(dian)(dian)橋法(fa)測(ce)試(shi)。由于電(dian)(dian)(dian)(dian)橋法(fa)測(ce)試(shi)有局限性(xing)(xing),不能(neng)測(ce)試(shi)多(duo)點(dian)(dian)接地(di)故(gu)(gu)障,也(ye)不能(neng)測(ce)試(shi)三相電(dian)(dian)(dian)(dian)纜(lan)(lan)(lan)(lan)鏈式接地(di)連線(xian)(xian)的(de)故(gu)(gu)障。本儀器(qi)是針對外(wai)護(hu)(hu)套故(gu)(gu)障的(de)特(te)點(dian)(dian),采用(yong)壓降(jiang)法(fa)初(chu)測(ce)電(dian)(dian)(dian)(dian)纜(lan)(lan)(lan)(lan)外(wai)護(hu)(hu)套的(de)接地(di)故(gu)(gu)障,再用(yong)跨(kua)步電(dian)(dian)(dian)(dian)壓法(fa)精確查找故(gu)(gu)障點(dian)(dian)。儀器(qi)用(yong)于交聯電(dian)(dian)(dian)(dian)纜(lan)(lan)(lan)(lan)的(de)外(wai)護(hu)(hu)套故(gu)(gu)障探(tan)測(ce);也(ye)可(ke)用(yong)于地(di)埋線(xian)(xian)和全塑線(xian)(xian)(無金屬(shu)護(hu)(hu)層電(dian)(dian)(dian)(dian)纜(lan)(lan)(lan)(lan))故(gu)(gu)障的(de)探(tan)測(ce);還可(ke)用(yong)作電(dian)(dian)(dian)(dian)纜(lan)(lan)(lan)(lan)外(wai)護(hu)(hu)套直流泄漏試(shi)驗。
電纜外護套測量儀電壓調(diao)節及工作方(fang)式(shi)切換(huan)注(zhu)意(yi)事項(xiang):
1、根據將(jiang)要(yao)進(jin)行的(de)測試類型選擇正(zheng)確的(de)工作方(fang)式(shi)。
進行泄漏(lou)測試將工作方式撥(bo)到“泄漏(lou)測試”;
進行(xing)外(wai)護套故障距(ju)離初測將工作(zuo)方(fang)式(shi)撥到“DC1或DC2、DC3等”;
進行外(wai)護(hu)套故障定(ding)點測試將工作方式撥到“AC1或AC2、AC3等”
2、工作方(fang)式切換時,先(xian)斷開電源30秒以(yi)上;
3、電(dian)壓(ya)調(diao)節(jie)可以控制輸(shu)出(chu)電(dian)壓(ya)和輸(shu)出(chu)電(dian)流(liu)的大小幅(fu)度(du),當升高(gao)電(dian)壓(ya)時(shi),在負載一定的情況下,輸(shu)出(chu)的電(dian)流(liu)也會隨之增大;
4、開機順序:
①按照(zhao)將(jiang)要(yao)進(jin)行的試驗(yan)進(jin)行連(lian)線;
②選擇工作方式;
③將電(dian)壓調節幅度(du)旋鈕逆時針旋到小;
④打開電源;
⑤逐步升高試驗電壓。
三、主要技術參數
主 機(ji) 電 源:AC220V±10% 5A;
泄漏(lou)試驗輸出電壓:DC 0∽10KV負極性;
定(ding)點和故障距離初測輸出電流:連續、斷續 0∽200mA
體(ti) 積(ji):340×320×260
重 量:10kg
定點儀 靈敏(min)度:0.14V(未放(fang)大(da))
0.10mV(放大(da))
電 源(yuan):3×1.5V
重(zhong) 量:0.5公斤