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電纜電纜識別機組成及功能


電纜電纜識別機組成及功能一、工(gong)作原理簡(jian)介

為了可(ke)靠(kao)準(zhun)確地識別(bie)(bie)電纜,需要(yao)(yao)給被識別(bie)(bie)電纜加一特(te)(te)殊的信(xin)號(hao),該信(xin)號(hao)要(yao)(yao)被專用(yong)接(jie)收(shou)機接(jie)收(shou),利用(yong)這一特(te)(te)性(xing)便(bian)能識別(bie)(bie)出要(yao)(yao)找的電纜。

該儀器按下述原理工作:

發生器將周期(qi)性的(de)(de)單(dan)極(ji)性電(dian)(dian)(dian)(dian)壓(ya)脈(mo)(mo)沖(chong)饋入要識(shi)別(bie)(bie)的(de)(de)電(dian)(dian)(dian)(dian)纜中,該(gai)電(dian)(dian)(dian)(dian)纜需要在遠端接(jie)地,以保證有足夠大的(de)(de)電(dian)(dian)(dian)(dian)流(liu)(liu)(liu)(liu)(liu)(liu)(liu)流(liu)(liu)(liu)(liu)(liu)(liu)(liu)過電(dian)(dian)(dian)(dian)纜。該(gai)系統要設計成(cheng)返回(hui)電(dian)(dian)(dian)(dian)流(liu)(liu)(liu)(liu)(liu)(liu)(liu)不(bu)要從(cong)同一(yi)(yi)電(dian)(dian)(dian)(dian)纜中返回(hui),能做到這(zhe)一(yi)(yi)點,饋入電(dian)(dian)(dian)(dian)纜中的(de)(de)脈(mo)(mo)沖(chong)電(dian)(dian)(dian)(dian)流(liu)(liu)(liu)(liu)(liu)(liu)(liu)的(de)(de)方(fang)向可做為一(yi)(yi)明(ming)顯(xian)的(de)(de)識(shi)別(bie)(bie)標(biao)準,流(liu)(liu)(liu)(liu)(liu)(liu)(liu)出去(qu)的(de)(de)電(dian)(dian)(dian)(dian)流(liu)(liu)(liu)(liu)(liu)(liu)(liu)僅從(cong)這(zhe)一(yi)(yi)根電(dian)(dian)(dian)(dian)纜通(tong)過,所有其(qi)它鄰近電(dian)(dian)(dian)(dian)纜中流(liu)(liu)(liu)(liu)(liu)(liu)(liu)過的(de)(de)都是返回(hui)電(dian)(dian)(dian)(dian)流(liu)(liu)(liu)(liu)(liu)(liu)(liu),但它們的(de)(de)極(ji)性相反。除了(le)電(dian)(dian)(dian)(dian)流(liu)(liu)(liu)(liu)(liu)(liu)(liu)方(fang)向這(zhe)一(yi)(yi)實際差異外(wai),電(dian)(dian)(dian)(dian)流(liu)(liu)(liu)(liu)(liu)(liu)(liu)幅度也是一(yi)(yi)識(shi)別(bie)(bie)特(te)征,流(liu)(liu)(liu)(liu)(liu)(liu)(liu)出去(qu)的(de)(de)電(dian)(dian)(dian)(dian)流(liu)(liu)(liu)(liu)(liu)(liu)(liu)僅通(tong)過一(yi)(yi)根電(dian)(dian)(dian)(dian)纜、而返回(hui)電(dian)(dian)(dian)(dian)流(liu)(liu)(liu)(liu)(liu)(liu)(liu)可通(tong)過幾根電(dian)(dian)(dian)(dian)纜、這(zhe)意(yi)味著流(liu)(liu)(liu)(liu)(liu)(liu)(liu)出去(qu)的(de)(de)電(dian)(dian)(dian)(dian)流(liu)(liu)(liu)(liu)(liu)(liu)(liu)比流(liu)(liu)(liu)(liu)(liu)(liu)(liu)過其(qi)它電(dian)(dian)(dian)(dian)纜的(de)(de)返回(hui)電(dian)(dian)(dian)(dian)流(liu)(liu)(liu)(liu)(liu)(liu)(liu)大。

接收(shou)機的(de)(de)任務(wu)是探測流(liu)(liu)(liu)過(guo)電(dian)(dian)(dian)(dian)(dian)纜(lan)(lan)電(dian)(dian)(dian)(dian)(dian)流(liu)(liu)(liu)方向(xiang)以及它的(de)(de)大小。為達到這(zhe)(zhe)一(yi)目的(de)(de),電(dian)(dian)(dian)(dian)(dian)流(liu)(liu)(liu)傳(chuan)(chuan)(chuan)感(gan)器(qi)被用作傳(chuan)(chuan)(chuan)感(gan)器(qi),它帶有(you)(you)一(yi)放大器(qi)并串聯在(zai)電(dian)(dian)(dian)(dian)(dian)路中(zhong),傳(chuan)(chuan)(chuan)感(gan)器(qi)鉗住被測電(dian)(dian)(dian)(dian)(dian)纜(lan)(lan),電(dian)(dian)(dian)(dian)(dian)流(liu)(liu)(liu)流(liu)(liu)(liu)過(guo)電(dian)(dian)(dian)(dian)(dian)纜(lan)(lan)產生的(de)(de)磁(ci)場在(zai)傳(chuan)(chuan)(chuan)感(gan)器(qi)的(de)(de)線(xian)圈(quan)中(zhong)感(gan)應出電(dian)(dian)(dian)(dian)(dian)壓,該(gai)電(dian)(dian)(dian)(dian)(dian)壓極(ji)性(xing)由電(dian)(dian)(dian)(dian)(dian)流(liu)(liu)(liu)方向(xiang)和傳(chuan)(chuan)(chuan)感(gan)器(qi)線(xian)圈(quan)的(de)(de)方向(xiang)決定。為了得(de)到明顯(xian)有(you)(you)電(dian)(dian)(dian)(dian)(dian)流(liu)(liu)(liu)方向(xiang)的(de)(de)電(dian)(dian)(dian)(dian)(dian)壓極(ji)性(xing),對一(yi)束(shu)電(dian)(dian)(dian)(dian)(dian)纜(lan)(lan)中(zhong)所(suo)有(you)(you)電(dian)(dian)(dian)(dian)(dian)纜(lan)(lan)進行測試都采取相(xiang)同正確的(de)(de)方向(xiang)。傳(chuan)(chuan)(chuan)感(gan)器(qi)線(xian)圈(quan)中(zhong)感(gan)應的(de)(de)電(dian)(dian)(dian)(dian)(dian)壓在(zai)表頭中(zhong)顯(xian)示(shi)出來(lai),如果(guo)傳(chuan)(chuan)(chuan)感(gan)器(qi)按(an)上述(shu)方式(shi)連(lian)接,指(zhi)(zhi)針擺動方向(xiang)可顯(xian)示(shi)電(dian)(dian)(dian)(dian)(dian)流(liu)(liu)(liu)方向(xiang),即(ji)只有(you)(you)電(dian)(dian)(dian)(dian)(dian)流(liu)(liu)(liu)流(liu)(liu)(liu)出的(de)(de)這(zhe)(zhe)根(gen)電(dian)(dian)(dian)(dian)(dian)纜(lan)(lan)指(zhi)(zhi)針向(xiang)一(yi)邊偏,這(zhe)(zhe)根(gen)就是要找的(de)(de)電(dian)(dian)(dian)(dian)(dian)纜(lan)(lan)。所(suo)有(you)(you)其它電(dian)(dian)(dian)(dian)(dian)纜(lan)(lan)只流(liu)(liu)(liu)過(guo)返回(hui)電(dian)(dian)(dian)(dian)(dian)流(liu)(liu)(liu),指(zhi)(zhi)針向(xiang)另(ling)一(yi)邊偏、或無脈(mo)動電(dian)(dian)(dian)(dian)(dian)流(liu)(liu)(liu),指(zhi)(zhi)針不偏轉。接收(shou)機上的(de)(de)放大調節器(qi)可調整信號強度。

 

電纜電纜識別機組成及功能二、外型及功能介紹

識(shi)別(bie)儀主機及接收機外型如圖(tu)1所示

主機外型(xing)尺寸:  370mm×270mm×210mm


接收機外型尺(chi)寸:170mm×60mm×140mm


電纜電纜識別機組成及功能主機各部分功能如下:

1. 電(dian)源開關:控制整(zheng)機電(dian)源通斷。

2. 電源輸入插座(zuo):用儀器(qi)所配(pei)專(zhuan)用電源線,輸入50HZ220V交流電源(yuan)。儀(yi)器使(shi)用時,應獨立(li)使(shi)用三孔電源(yuan)插座,插座接(jie)地線就(jiu)近直(zhi)接(jie)接(jie)地。

3. 保險(xian)座(zuo):儀器使(shi)用10A保險芯,損壞時應換(huan)同規格保險芯。

4. 黑接線柱(zhu):測試時,用(yong)配套黑色(se)測試線(Ф11插頭)插入此插孔,另一端(duan)測試夾(jia)接系統(tong)地。

5. 紅接(jie)線柱(zhu):測試(shi)時,用(yong)配套紅色測試(shi)線(Ф11插頭)插入此插孔,另一端測試夾接被測電(dian)纜芯線(xian)。

6. 表(biao)頭(tou):指(zhi)示輸出電流大小。

7. 輸出調節:用于調整主機電流大小,使用時(shi)(shi)根(gen)據測試電纜長短及(ji)接收器指示大小適當調節。順(shun)時(shi)(shi)針旋轉輸出電流增大。

接收機各部分功能如下:

電源開關:接(jie)收(shou)機電源接(jie)通與關斷。

幅度調節:順時(shi)(shi)針旋(xuan)轉,接(jie)收機電表指(zhi)示值增大,逆時(shi)(shi)針旋(xuan)轉,指(zhi)示值變小。

表(biao)頭:指示輸入信(xin)號幅度(du)大小與(yu)極性(xing)。

電(dian)源指(zhi)(zhi)示燈:電(dian)源開關接通時,指(zhi)(zhi)示燈亮。

電纜電纜識別機組成及功能三、工作方法

電(dian)(dian)(dian)纜(lan)(lan)識(shi)別(bie)儀信號發(fa)生(sheng)器由交(jiao)流電(dian)(dian)(dian)源供電(dian)(dian)(dian),它(ta)對已(yi)斷(duan)電(dian)(dian)(dian)的(de)、要識(shi)別(bie)的(de)電(dian)(dian)(dian)纜(lan)(lan)加上(shang)固定周期單極性的(de)直(zhi)流脈(mo)沖。發(fa)生(sheng)器輸(shu)出線(xian)(xian)連在電(dian)(dian)(dian)纜(lan)(lan)芯線(xian)(xian)和接地(di)(di)(di)點或(huo)地(di)(di)(di)釘上(shang),該(gai)電(dian)(dian)(dian)纜(lan)(lan)線(xian)(xian)鎧裝與大地(di)(di)(di)斷(duan)開,芯線(xian)(xian)在遠端與接地(di)(di)(di)點或(huo)地(di)(di)(di)釘相連,該(gai)回路(lu)可傳(chuan)導(dao)脈(mo)沖電(dian)(dian)(dian)流,它(ta)可由識(shi)別(bie)

儀上的(de)表頭讀出(chu),電(dian)流(liu)大小由環路電(dian)阻決(jue)定,環路電(dian)阻應盡(jin)可能小。識別儀接(jie)線圖如圖2所示

發射機(ji)與接收(shou)(shou)機(ji)開始正常(chang)工(gong)作后,傳感器線圈中(zhong)感應(ying)的(de)電(dian)(dian)(dian)壓在接收(shou)(shou)機(ji)表(biao)頭中(zhong)顯示出來,表(biao)頭指針(zhen)(zhen)擺動(dong)方向(xiang)可顯示電(dian)(dian)(dian)流方向(xiang),即只(zhi)有電(dian)(dian)(dian)流流出的(de)這(zhe)根電(dian)(dian)(dian)纜指針(zhen)(zhen)向(xiang)右偏并(bing)且擺幅較(jiao)大,這(zhe)根就是要找(zhao)的(de)電(dian)(dian)(dian)纜。所(suo)有其它電(dian)(dian)(dian)纜只(zhi)流過返回電(dian)(dian)(dian)流,指針(zhen)(zhen)向(xiang)左偏并(bing)且擺幅極小。接收(shou)(shou)機(ji)上的(de)輸出調節旋鈕可調整信號強度。

1、儀(yi)器供電

電纜識別儀(yi)主機(ji)由交(jiao)流220V供(gong)電,接(jie)收機由一節9V電池供(gong)電、電池裝在(zai)接收(shou)機手(shou)把后蓋內。擰開后蓋兩側螺絲(si)、拉出后蓋,可更換電池。

2、傳(chuan)感器(qi)

傳(chuan)感(gan)器(qi)是一電(dian)流變(bian)換器(qi),鉗口(kou)內部尺(chi)寸為120mm。當電流流過測試電纜,在(zai)傳感(gan)器內感(gan)應出電壓,電壓幅(fu)度(du)由(you)(you)電流強度(du)決定,其極性由(you)(you)電流方向決定。

3、**測試

一定要進行以下(xia)**測試(shi),以避免造人員傷(shang)亡或損壞電(dian)纜(lan)(lan)識(shi)別儀及其它設備。使用電(dian)纜(lan)(lan)識(shi)別儀時,要對(dui)被測電(dian)纜(lan)(lan)進行帶電(dian)檢(jian)查,并確保該電(dian)纜(lan)(lan)處(chu)于無電(dian)狀態。

將儀(yi)器接入被(bei)測電(dian)(dian)(dian)纜前,要對其附近末(mo)加保(bao)護(hu)的儀(yi)器或電(dian)(dian)(dian)纜進行**檢查(cha),并將這些帶電(dian)(dian)(dian)部分用絕緣材料進行**保(bao)護(hu)。

電纜電纜識別機組成及功能四、準備測試

1、主機準備(bei)

連接:

1)在進(jin)行(xing)測試(shi)工作之前,將被測電(dian)纜斷電(dian),其周圍環境應處于(yu)**狀(zhuang)態。

2)發生器與被測電(dian)纜相連(lian),紅色夾(jia)(jia)子與被識(shi)別電(dian)纜的一(yi)根芯線(xian)或(huo)幾根芯線(xian)連(lian)到一(yi)起。將黑色夾(jia)(jia)子與地釘相連(lian)。

3)將電纜遠(yuan)端的芯線與(yu)地(di)釘相連。

4)將電纜兩端的鎧裝與地線斷開。

5)將電源(yuan)線插(cha)入(ru)電源(yuan)插(cha)座(zuo)。

開機:

1)逆時針方向調節輸出(chu)旋鈕到零。

2)打(da)開主機(ji)電源開關,對主機(ji)供(gong)電。

3)緩慢(man)調節(jie)輸出旋(xuan)鈕,主機(ji)開始(shi)間斷向電纜發出脈動直流信號,使輸出脈動電流信號為515A之(zhi)間即可。

2、接收機準備

1)從接收機手把背面卸下螺釘,將一節9V電池裝入接收機中,就可正常(chang)工作。

2)接(jie)通(tong)接(jie)收機(ji)電源(yuan),紅色發光二(er)極管亮。

3)緩慢調節(jie)靈(ling)敏度(du)旋鈕,使(shi)電表開始指示。

注意傳感器插入(ru)電纜的方(fang)向及接收機表頭擺動幅度的大小。

組成及功能

 識別儀主要由以下六部分組成。

1.信(xin)號發射機:輸出(chu)一定功率的高頻(pin)電(dian)(dian)磁信(xin)號,施加到預識別停電(dian)(dian)或帶(dai)電(dian)(dian)的電(dian)(dian)纜上,并在此電(dian)(dian)纜上產生(sheng)恒定電(dian)(dian)流。

2.信(xin)號(hao)接收機:把耦合鉗(qian)檢測(ce)到的信(xin)號(hao),以光柵長短、數字大小及蜂鳴的形式顯(xian)示出來,操作(zuo)者以接收信(xin)號(hao)強弱為據作(zuo)出判定。

3.耦(ou)合鉗:用于發射和接收電(dian)磁信號(發射鉗和接收鉗的電(dian)性能不同,不要互換使用)。

4.充電器:用于(yu)信號發射機(ji)及接收機(ji)的充電。

5.直連信號線(xian)(xian):為紅黑雙夾線(xian)(xian),用于停電(dian)電(dian)纜的直連識別。

6.耦合鉗連線:用于耦合鉗與信號發射機及接收機的連接

我們生活中日常用的電,前期有很大的工程在里面,而這些工程項目的完成也需很多的儀器輔助完成,節約時間,減少人力成本,就比如常見的電纜電纜識別機,試驗單位這里就需要用到電纜電纜識別機,很多單位不一定 有這樣的儀器儲備,這時候就需要尋找國內真正做電纜電纜識別機設備的廠家采購,要想找到國內真正做電纜電纜識別機設備的廠家是需要費一番周折的。那么,在國內真正做電纜電纜識別機設備的廠家還是比較分散的,揚州萬寶電氣極其注重電纜電纜識別機使(shi)用(yong)時的體驗度和功能上的要求(qiu),追(zhui)求(qiu)質(zhi)量的保(bao)證(zheng),嚴格要求(qiu)產品質(zhi)量得到(dao)保(bao)障,適應年限(xian)達到(dao)保(bao)修(xiu)期,維修(xiu)時方(fang)便快捷(jie)。

所以,很多客戶找國內真正做電纜電纜識別機設備的(de)廠家大(da)家都會想到揚州萬寶,口(kou)碑一直都很不錯(cuo),生產車(che)間(jian)隨時恭候考(kao)察,做到真的(de)信(xin)任(ren)和(he)溝通。

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