LJJHDLSB電力電纜識別儀|電纜故障定點儀

LJJHDLSB電力電纜識別儀|電纜故障定點儀

產品介紹

產品簡介

LJJHDLSB電纜識別儀是用于將某一特定電纜從一束電纜中識別出來的專用儀器。它是一小型化手提式，緊湊型儀器，裝在鋁合金箱內，由一個信號發生器，一個帶卡鉗的接收機及連線構成。

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產品別稱

電纜(lan)(lan)(lan)故障儀、電纜(lan)(lan)(lan)故障測試儀、進口電纜(lan)(lan)(lan)識別儀、帶

電(dian)電(dian)纜識(shi)別儀、電(dian)纜識(shi)別儀廠(chang)家、電(dian)纜故障(zhang)定點儀、電(dian)纜識(shi)別儀價(jia)格

工作原理

為了可(ke)靠(kao)準確地識(shi)別電纜，需要(yao)給(gei)被(bei)識(shi)別電纜加一(yi)特殊的(de)(de)信號，該信號要(yao)被(bei)專用(yong)接收機接收，利(li)用(yong)這(zhe)一(yi)特性(xing)便能識(shi)別出要(yao)找的(de)(de)電纜。

LJJHDLSB電纜故障定點儀按下述原理工作：

發生器將周期性的(de)(de)(de)(de)(de)單極(ji)性電(dian)(dian)(dian)(dian)(dian)(dian)壓(ya)脈(mo)沖(chong)饋(kui)入要識(shi)別的(de)(de)(de)(de)(de)電(dian)(dian)(dian)(dian)(dian)(dian)纜(lan)(lan)中(zhong)(zhong)(zhong)，該(gai)電(dian)(dian)(dian)(dian)(dian)(dian)纜(lan)(lan)需(xu)要在(zai)遠端接地(di)，以保證有足夠大(da)的(de)(de)(de)(de)(de)電(dian)(dian)(dian)(dian)(dian)(dian)流(liu)(liu)(liu)(liu)流(liu)(liu)(liu)(liu)過(guo)(guo)電(dian)(dian)(dian)(dian)(dian)(dian)纜(lan)(lan)。該(gai)系統(tong)要設(she)計(ji)成(cheng)返(fan)回(hui)(hui)電(dian)(dian)(dian)(dian)(dian)(dian)流(liu)(liu)(liu)(liu)不要從(cong)同(tong)一電(dian)(dian)(dian)(dian)(dian)(dian)纜(lan)(lan)中(zhong)(zhong)(zhong)返(fan)回(hui)(hui)，能(neng)做到這一點，饋(kui)入電(dian)(dian)(dian)(dian)(dian)(dian)纜(lan)(lan)中(zhong)(zhong)(zhong)的(de)(de)(de)(de)(de)脈(mo)沖(chong)電(dian)(dian)(dian)(dian)(dian)(dian)流(liu)(liu)(liu)(liu)的(de)(de)(de)(de)(de)方向(xiang)(xiang)可做為一明(ming)顯(xian)的(de)(de)(de)(de)(de)識(shi)別標準，流(liu)(liu)(liu)(liu)出去的(de)(de)(de)(de)(de)電(dian)(dian)(dian)(dian)(dian)(dian)流(liu)(liu)(liu)(liu)僅從(cong)這一根電(dian)(dian)(dian)(dian)(dian)(dian)纜(lan)(lan)通過(guo)(guo)，所(suo)有其它鄰近電(dian)(dian)(dian)(dian)(dian)(dian)纜(lan)(lan)中(zhong)(zhong)(zhong)流(liu)(liu)(liu)(liu)過(guo)(guo)的(de)(de)(de)(de)(de)都是返(fan)回(hui)(hui)電(dian)(dian)(dian)(dian)(dian)(dian)流(liu)(liu)(liu)(liu)，但它們的(de)(de)(de)(de)(de)極(ji)性相反(fan)。除了電(dian)(dian)(dian)(dian)(dian)(dian)流(liu)(liu)(liu)(liu)方向(xiang)(xiang)這一實(shi)際差異外(wai)，電(dian)(dian)(dian)(dian)(dian)(dian)流(liu)(liu)(liu)(liu)幅度也是一識(shi)別特征，流(liu)(liu)(liu)(liu)出去的(de)(de)(de)(de)(de)電(dian)(dian)(dian)(dian)(dian)(dian)流(liu)(liu)(liu)(liu)僅通過(guo)(guo)一根電(dian)(dian)(dian)(dian)(dian)(dian)纜(lan)(lan)、而返(fan)回(hui)(hui)電(dian)(dian)(dian)(dian)(dian)(dian)流(liu)(liu)(liu)(liu)可通過(guo)(guo)幾根電(dian)(dian)(dian)(dian)(dian)(dian)纜(lan)(lan)、這意味(wei)著流(liu)(liu)(liu)(liu)出去的(de)(de)(de)(de)(de)電(dian)(dian)(dian)(dian)(dian)(dian)流(liu)(liu)(liu)(liu)比流(liu)(liu)(liu)(liu)過(guo)(guo)其它電(dian)(dian)(dian)(dian)(dian)(dian)纜(lan)(lan)的(de)(de)(de)(de)(de)返(fan)回(hui)(hui)電(dian)(dian)(dian)(dian)(dian)(dian)流(liu)(liu)(liu)(liu)大(da)。

接收(shou)機的(de)(de)(de)(de)任(ren)務是(shi)探測流(liu)(liu)過(guo)電(dian)(dian)(dian)(dian)(dian)纜(lan)(lan)(lan)電(dian)(dian)(dian)(dian)(dian)流(liu)(liu)方(fang)(fang)(fang)向(xiang)以及它的(de)(de)(de)(de)大(da)小。為(wei)達到(dao)這一(yi)目的(de)(de)(de)(de)，電(dian)(dian)(dian)(dian)(dian)流(liu)(liu)卡鉗(qian)(qian)被用(yong)作傳感(gan)器(qi)，它帶(dai)有(you)一(yi)放大(da)器(qi)并串(chuan)聯在電(dian)(dian)(dian)(dian)(dian)路中(zhong)，卡鉗(qian)(qian)鉗(qian)(qian)住(zhu)被測電(dian)(dian)(dian)(dian)(dian)纜(lan)(lan)(lan)，電(dian)(dian)(dian)(dian)(dian)流(liu)(liu)流(liu)(liu)過(guo)電(dian)(dian)(dian)(dian)(dian)纜(lan)(lan)(lan)產生(sheng)的(de)(de)(de)(de)磁場在卡鉗(qian)(qian)的(de)(de)(de)(de)線(xian)圈中(zhong)感(gan)應(ying)出電(dian)(dian)(dian)(dian)(dian)壓，該(gai)電(dian)(dian)(dian)(dian)(dian)壓極(ji)性由電(dian)(dian)(dian)(dian)(dian)流(liu)(liu)方(fang)(fang)(fang)向(xiang)和卡鉗(qian)(qian)線(xian)圈的(de)(de)(de)(de)方(fang)(fang)(fang)向(xiang)決定。為(wei)了得到(dao)明顯有(you)電(dian)(dian)(dian)(dian)(dian)流(liu)(liu)方(fang)(fang)(fang)向(xiang)的(de)(de)(de)(de)電(dian)(dian)(dian)(dian)(dian)壓極(ji)性，對(dui)一(yi)束(shu)電(dian)(dian)(dian)(dian)(dian)纜(lan)(lan)(lan)中(zhong)所(suo)有(you)電(dian)(dian)(dian)(dian)(dian)纜(lan)(lan)(lan)進行測試都采取(qu)相同正確的(de)(de)(de)(de)繞組方(fang)(fang)(fang)向(xiang)，這就是(shi)卡鉗(qian)(qian)上(shang)標有(you)箭頭的(de)(de)(de)(de)原因。卡鉗(qian)(qian)上(shang)箭頭的(de)(de)(de)(de)方(fang)(fang)(fang)向(xiang)應(ying)指(zhi)向(xiang)電(dian)(dian)(dian)(dian)(dian)纜(lan)(lan)(lan)遠端，卡鉗(qian)(qian)線(xian)圈中(zhong)感(gan)應(ying)的(de)(de)(de)(de)電(dian)(dian)(dian)(dian)(dian)壓在表頭中(zhong)顯示出來，如果卡鉗(qian)(qian)按上(shang)述方(fang)(fang)(fang)式連接，指(zhi)針(zhen)(zhen)擺動(dong)方(fang)(fang)(fang)向(xiang)可顯示電(dian)(dian)(dian)(dian)(dian)流(liu)(liu)方(fang)(fang)(fang)向(xiang)，即只(zhi)有(you)電(dian)(dian)(dian)(dian)(dian)流(liu)(liu)流(liu)(liu)出的(de)(de)(de)(de)這根電(dian)(dian)(dian)(dian)(dian)纜(lan)(lan)(lan)指(zhi)針(zhen)(zhen)向(xiang)右(you)偏，這根就是(shi)要找的(de)(de)(de)(de)電(dian)(dian)(dian)(dian)(dian)纜(lan)(lan)(lan)。所(suo)有(you)其它電(dian)(dian)(dian)(dian)(dian)纜(lan)(lan)(lan)只(zhi)流(liu)(liu)過(guo)返(fan)回電(dian)(dian)(dian)(dian)(dian)流(liu)(liu)，指(zhi)針(zhen)(zhen)向(xiang)左偏、或無脈(mo)動(dong)電(dian)(dian)(dian)(dian)(dian)流(liu)(liu)，指(zhi)針(zhen)(zhen)不偏轉。接收(shou)機上(shang)的(de)(de)(de)(de)放大(da)調節器(qi)可調整信號強度。

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功能介紹

主機外型尺寸：400mm×270mm×210mm

接收機外型尺寸：155mm×205mm×50mm

LJJHDLSB電纜識別儀主機各部分功能如下：

1.　電(dian)源開關(guan)：控制整機電(dian)源通(tong)斷。

2.　電(dian)源輸入(ru)插座(zuo)：用儀器(qi)所配專用電(dian)源線(xian)，輸入(ru)50HZ、220V交(jiao)流電(dian)源。儀器(qi)使用時(shi)，應獨立使用三(san)孔電(dian)源插座(zuo)，插座(zuo)接(jie)(jie)地(di)線(xian)就近(jin)直接(jie)(jie)接(jie)(jie)地(di)。

3.　保(bao)險座：儀器(qi)使用10A保(bao)險芯，損壞(huai)時應換同規格保(bao)險芯。

4.　黑接(jie)線柱：測(ce)試(shi)時，用配套黑色測(ce)試(shi)線（Ф4插頭）插入此插孔，另一端測(ce)試(shi)夾接(jie)系(xi)統地。

5.　紅接(jie)線(xian)柱：測(ce)試時(shi)，用配套紅色測(ce)試線(xian)（Ф4插(cha)頭）插(cha)入此(ci)插(cha)孔(kong)，另一(yi)端測(ce)試夾接(jie)被測(ce)電纜芯線(xian)。

6.　表頭(tou)：指示(shi)輸(shu)出(chu)電流大(da)小。

7.　輸出調(diao)節(jie)：用于調(diao)整主機電(dian)(dian)流大小，使用時根據測試(shi)電(dian)(dian)纜(lan)長短(duan)及接收器指示大小適當調(diao)節(jie)。順(shun)時針旋轉(zhuan)輸出電(dian)(dian)流增(zeng)大。

接收機(ji)各部分(fen)功能如下：

1. 電源(yuan)開關：接收機電源(yuan)接通與關斷。

2. 幅(fu)度調節(jie)：順(shun)時針旋轉，接收機電表指示值增(zeng)大，逆時針旋轉，指示值變小。

3. 表頭：指示輸入信號(hao)幅度大(da)小(xiao)與(yu)極(ji)性(xing)。

4. 電源指(zhi)示(shi)燈：電源開關(guan)接通時，指(zhi)示(shi)燈亮。