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低壓電纜故障檢測儀廠家技術參數

標簽: 電纜故障測試儀

低壓電纜故障檢測儀

  低壓(ya)電(dian)(dian)(dian)纜(lan)(lan)(lan)(lan)故障(zhang)(zhang)(zhang)(zhang)檢測儀(路(lu)燈電(dian)(dian)(dian)纜(lan)(lan)(lan)(lan)故障(zhang)(zhang)(zhang)(zhang)檢測儀)”是陜西意聯電(dian)(dian)(dian)氣(qi)專門針對“低壓(ya)電(dian)(dian)(dian)力電(dian)(dian)(dian)纜(lan)(lan)(lan)(lan)和路(lu)燈電(dian)(dian)(dian)纜(lan)(lan)(lan)(lan)的運行故障(zhang)(zhang)(zhang)(zhang)”而(er)精心(xin)設計研(yan)制出的 新(xin)一代電(dian)(dian)(dian)纜(lan)(lan)(lan)(lan)故障(zhang)(zhang)(zhang)(zhang)故障(zhang)(zhang)(zhang)(zhang)定(ding)位(wei)儀,其主要為解決(jue)直埋電(dian)(dian)(dian)力電(dian)(dian)(dian)纜(lan)(lan)(lan)(lan)的短(duan)路(lu)、斷路(lu)故障(zhang)(zhang)(zhang)(zhang)、死接地故障(zhang)(zhang)(zhang)(zhang)和電(dian)(dian)(dian)纜(lan)(lan)(lan)(lan)故障(zhang)(zhang)(zhang)(zhang)點受潮(chao),使用(yong)加高壓(ya)使故障(zhang)(zhang)(zhang)(zhang)點放電(dian)(dian)(dian)聽聲音定(ding)點困(kun)難的巨大(da)難題。


    低壓電纜故障檢測儀的(de)(de)(de)主要技術性(xing)能(neng):在(zai)設(she)計上利用的(de)(de)(de)是電(dian)磁感(gan)應的(de)(de)(de)原理來實現(xian)其種(zhong)種(zhong)功(gong)能(neng),而(er)不同(tong)于(yu)以前強迫故(gu)障點(dian)(dian)(dian)放電(dian)聽聲音大小的(de)(de)(de)定點(dian)(dian)(dian)方法,所以不需(xu)要升壓(ya)設(she)備,從而(er)保障了人(ren)身安全。操作時低(di)壓(ya)電(dian)纜(lan)故(gu)障檢測儀(yi)在(zai)距離(li)故(gu)障點(dian)(dian)(dian)20到30米(mi)可以感(gan)應到故(gu)障點(dian)(dian)(dian)的(de)(de)(de)電(dian)磁波,同(tong)時也自(zi)動引導電(dian)纜(lan)路徑、指示(shi)故(gu)障點(dian)(dian)(dian)的(de)(de)(de)方向,表頭(tou)指針方向發生轉換時的(de)(de)(de)那(nei)一點(dian)(dian)(dian)就是故(gu)障點(dian)(dian)(dian)。從而(er)使本來繁瑣復(fu)雜的(de)(de)(de)故(gu)障定點(dian)(dian)(dian)工作變(bian)的(de)(de)(de)非常的(de)(de)(de)輕(qing)松,特別適合(he)野(ye)外現(xian)場操作,極大的(de)(de)(de)方便(bian)了使用客戶,也提高(gao)了工作效(xiao)率(lv)降低(di)了勞動強度(du)。


    低壓電纜故障檢測儀由發(fa)射機及接(jie)收機兩(liang)部分組成。發(fa)射機發(fa)射一個連續(xu)的(de)電(dian)(dian)(dian)波信號,接(jie)收機接(jie)收到此信號的(de)同時(shi)對電(dian)(dian)(dian)纜(lan)(lan)(lan)的(de)故(gu)(gu)障(zhang)(zhang)點(dian)位置(zhi)、電(dian)(dian)(dian)纜(lan)(lan)(lan)埋設路徑、埋深(shen)同步進(jin)行測(ce)試(shi)。大(da)(da)量的(de)現場實驗證實,比起以前的(de)高壓(ya)(ya)放電(dian)(dian)(dian)聽聲音尋找故(gu)(gu)障(zhang)(zhang)點(dian),不(bu)受(shou)外界雜音等(deng)種種因(yin)素干擾,非常(chang)(chang)快速的(de)找到故(gu)(gu)障(zhang)(zhang)點(dian),工作效率大(da)(da)大(da)(da)提高了(le)數10倍。在實際的(de)生產(chan)生活中(zhong)低壓(ya)(ya)電(dian)(dian)(dian)纜(lan)(lan)(lan)的(de)數量要(yao)遠遠多于高壓(ya)(ya)電(dian)(dian)(dian)纜(lan)(lan)(lan)的(de)數量,同時(shi)由于埋深(shen)淺、絕緣(yuan)要(yao)求很低,它的(de)故(gu)(gu)障(zhang)(zhang)率遠遠大(da)(da)于高壓(ya)(ya)電(dian)(dian)(dian)纜(lan)(lan)(lan),低壓(ya)(ya)電(dian)(dian)(dian)纜(lan)(lan)(lan)故(gu)(gu)障(zhang)(zhang)測(ce)試(shi)儀的(de)使(shi)用(yong)(yong)性能剛好適合低壓(ya)(ya)電(dian)(dian)(dian)纜(lan)(lan)(lan)的(de)使(shi)用(yong)(yong)特點(dian)及故(gu)(gu)障(zhang)(zhang)特征(zheng),同時(shi)價格也(ye)便(bian)宜(yi),操作攜帶(dai)方便(bian),實用(yong)(yong)性非常(chang)(chang)的(de)強(qiang)。


    另外(wai)低壓電纜(lan)故(gu)障(zhang)(zhang)檢測儀對‘沖閃(shan)法’無法解決的單芯電纜(lan)接地和斷線故(gu)障(zhang)(zhang)特別合適(shi),定點準(zhun)確快捷,誤差以厘(li)米(mi)計。



低壓電纜故障檢測儀技術(shu)參數(shu): 

1.探測距離≤10km 
2.探測深度≤3m 
3.路徑誤差<8cm 
4.定位誤差<5cm 
5.定位阻值范圍:0~4MΩ



低壓電纜故障檢(jian)測(ce)儀工作原理
A.探測路由工作原理
   當交(jiao)流(liu)電(dian)流(liu)通過一直(zhi)線(xian)(xian)(xian)(xian)(xian)導(dao)體時,在該導(dao)體周圍(wei)便產生(sheng)了(le)一個同軸(zhou)的交(jiao)流(liu)電(dian)磁場。將(jiang)(jiang)一線(xian)(xian)(xian)(xian)(xian)圈(quan)放于(yu)這個磁場中,在線(xian)(xian)(xian)(xian)(xian)圈(quan)內將(jiang)(jiang)感(gan)應產生(sheng)一個同頻率的交(jiao)流(liu)電(dian)壓(ya),感(gan)應電(dian)壓(ya)的大(da)小決定(ding)于(yu)該線(xian)(xian)(xian)(xian)(xian)圈(quan)在磁場中的位置。當磁力線(xian)(xian)(xian)(xian)(xian)方向(xiang)(xiang)與線(xian)(xian)(xian)(xian)(xian)圈(quan)軸(zhou)向(xiang)(xiang)平行時,線(xian)(xian)(xian)(xian)(xian)圈(quan)感(gan)應的電(dian)壓(ya)將(jiang)(jiang)較(jiao)(jiao)大(da)(圖1所示);當線(xian)(xian)(xian)(xian)(xian)圈(quan)軸(zhou)向(xiang)(xiang)與磁力線(xian)(xian)(xian)(xian)(xian)方面(mian)相垂直(zhi)時,線(xian)(xian)(xian)(xian)(xian)圈(quan)感(gan)應的電(dian)壓(ya)將(jiang)(jiang)較(jiao)(jiao)小(圖2所示)。由此可判斷出線(xian)(xian)(xian)(xian)(xian)纜(lan)的路由。利用接收(shou)線(xian)(xian)(xian)(xian)(xian)圈(quan)的45°法也可測出地下線(xian)(xian)(xian)(xian)(xian)纜(lan)的埋深。


探測電纜的 大信號法


B、探測故障工作原理: 
  將發射機產生的直流脈沖送入被測電纜,通過絕緣不良點入地。在入地點形成點電場,該點電場在地表面形成的電場如下圖2所示。接收機中的直流放大器通過電位差探頭取得故障點前后(沿線纜路由)的電位差,由于故障點前后的電位差符號相反,當電位差探測架的前后順序不變時,則直流放大器中值表頭將向不同方向擺動,中值表頭在故障點前與越過故障點將會有方向的變化。通過表頭擺動方向的變化,即可確定線纜對地絕緣不良的故障點。根據電場原理,接收機的電位差探架距離故障點越近,在等距離條件下取得的電位差越大;中值表針擺動也越大;同樣,探架剛離開故障點時,中值表針擺幅也是較大(但與未過故障點擺動方向相反)。如果探架中間正好是故障點,由于電位差為零,則中值表頭擺幅也為零。


故障點發生的地表電場分布

低(di)壓電纜故(gu)障(zhang)檢測儀配(pei)套組(zu)成(cheng)

1.發射機 1臺 
2.接收機 1臺
3.感應式探頭(組件) 1件
4.電源線 1根
5.輸出線 2根 【測試或地線延伸線18米左右壹根】
6.電位差式探測架組件【含探針兩個】 1套
7.接地棒 1根
8.探頭連接線 1根
9.說明書 1本
10.充電器 1個
11.以上附件裝在兩臺黑色箱內。


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