標題：帶電電纜識別儀生產廠家

產品概述

產品介紹：

帶電電纜識別儀生產廠家，在發射端采用單片機技術對發射信號進行編碼，驅動大口徑卡鉗發射平均值為0的大電流相位編碼信號。接收機中的單片機對接收的相位編碼信號解碼和相位識別。根據目標電纜上的信號相位特征的wei一性將目標電纜從一大束其它電纜中鑒別出來。帶電電纜識別儀也可以把輸出信號直接連接到停電運行的電纜上，這時可以識別接地回路達到1000歐姆以上。它是一種輕小型、緊湊型、便攜式儀器。適用于各種類型的高低壓動力電纜。

技術指(zhi)標：

1、信號發生器：
①工作電源：AC 220V±10%  50Hz
②輸出功率：1kVA
③輸出信號：間隙調制信號
④間隙時間：1s～2s
⑤環境溫度：-10℃～45℃
2、信號檢測鉗
①電    源：無源工作
②鉗    口：開口時≥150mm，閉合時內徑：Φ120mm
③檢測方式：卡入閉合感應式，檢測方向及大小
④檢測電流：5A～40A
3、信號顯示器
①電    源：無源工作
②顯示方式：表頭指針擺動，表示方向和大小
③信號抑制調節：線性調節

主要特點：

帶電電纜識別儀生產廠家由電流脈沖發射機，接收機、收發卡鉗及若干連接導線組成。它具有大功率電流脈沖輸出;現場接收信號特征清晰，方便攜帶，輕便靈活，靈敏度高，能有效抑制現場工頻干擾，判斷準確、快速;保護電路可靠，不怕輸出短路;大鉗口ф150適合各種截面積的動力電纜;內部具有大功率隔離變壓器，操作者與市電不存在任何電氣上的直接接觸。但不允許在儀器帶電情況下用手去觸摸黑、紅夾子線。

工作(zuo)原理：

由(you)于正在(zai)運(yun)行的(de)(de)帶電(dian)(dian)(dian)(dian)電(dian)(dian)(dian)(dian)纜(lan)(lan)(lan)(lan)不允許(xu)破壞(huai)任何接(jie)(jie)地線(xian)等連接(jie)(jie)線(xian)，也不允許(xu)將識別(bie)(bie)儀發射機的(de)(de)輸出信(xin)號直(zhi)接(jie)(jie)加在(zai)帶有(you)高(gao)壓電(dian)(dian)(dian)(dian)的(de)(de)電(dian)(dian)(dian)(dian)纜(lan)(lan)(lan)(lan)相線(xian)上(shang)(shang)。帶電(dian)(dian)(dian)(dian)電(dian)(dian)(dian)(dian)纜(lan)(lan)(lan)(lan)識別(bie)(bie)，需要解(jie)決兩(liang)個難題(ti)(ti)，一是電(dian)(dian)(dian)(dian)纜(lan)(lan)(lan)(lan)識別(bie)(bie)信(xin)號如(ru)何耦合到電(dian)(dian)(dian)(dian)纜(lan)(lan)(lan)(lan)上(shang)(shang)的(de)(de)問題(ti)(ti);二是耦合上(shang)(shang)去的(de)(de)信(xin)號一般比較(jiao)小，而運(yun)行電(dian)(dian)(dian)(dian)纜(lan)(lan)(lan)(lan)可能存在(zai)50HZ不平衡電(dian)(dian)(dian)(dian)流(liu)、感(gan)應的(de)(de)50Hz干(gan)(gan)擾(rao)電(dian)(dian)(dian)(dian)流(liu)，電(dian)(dian)(dian)(dian)纜(lan)(lan)(lan)(lan)的(de)(de)分布電(dian)(dian)(dian)(dian)容電(dian)(dian)(dian)(dian)流(liu)等構成的(de)(de)50Hz工(gong)頻電(dian)(dian)(dian)(dian)磁干(gan)(gan)擾(rao)，高(gao)靈敏度(du)接(jie)(jie)收(shou)卡鉗就存在(zai)如(ru)何抗50Hz工(gong)頻干(gan)(gan)擾(rao)問題(ti)(ti)。

我們研制的(de)(de)帶電(dian)(dian)(dian)(dian)(dian)電(dian)(dian)(dian)(dian)(dian)纜(lan)(lan)(lan)(lan)識(shi)(shi)別(bie)(bie)(bie)儀，發(fa)射和接收(shou)采(cai)用單片機(ji)編碼、解碼技術和廣泛應用在通信(xin)領(ling)域里的(de)(de)PSK技術。在發(fa)射卡(ka)鉗上發(fa)射平均值(zhi)為0 的(de)(de)相位編碼信(xin)號(hao)(hao)，接收(shou)卡(ka)鉗中的(de)(de)單片機(ji)，對(dui)接收(shou)的(de)(de)信(xin)號(hao)(hao)經過硬件(jian)和如(ru)軟件(jian)的(de)(de)濾波后，再進行相位識(shi)(shi)別(bie)(bie)(bie)，當接收(shou)卡(ka)鉗按照電(dian)(dian)(dian)(dian)(dian)流方(fang)向卡(ka)電(dian)(dian)(dian)(dian)(dian)纜(lan)(lan)(lan)(lan)時，被識(shi)(shi)別(bie)(bie)(bie)的(de)(de)電(dian)(dian)(dian)(dian)(dian)纜(lan)(lan)(lan)(lan)電(dian)(dian)(dian)(dian)(dian)流表右偏，同(tong)時伴有聲光指(zhi)示(shi)。而(er)其它的(de)(de)電(dian)(dian)(dian)(dian)(dian)纜(lan)(lan)(lan)(lan)電(dian)(dian)(dian)(dian)(dian)流方(fang)向與被識(shi)(shi)別(bie)(bie)(bie)電(dian)(dian)(dian)(dian)(dian)纜(lan)(lan)(lan)(lan)的(de)(de)電(dian)(dian)(dian)(dian)(dian)流方(fang)向相反，其電(dian)(dian)(dian)(dian)(dian)流表指(zhi)針左偏。沒有聲光指(zhi)示(shi)。這(zhe)就(jiu)體現了(le)被識(shi)(shi)別(bie)(bie)(bie)的(de)(de)目標電(dian)(dian)(dian)(dian)(dian)纜(lan)(lan)(lan)(lan)的(de)(de)wei一(yi)(yi)性(xing)。很容易將(jiang)被識(shi)(shi)別(bie)(bie)(bie)電(dian)(dian)(dian)(dian)(dian)纜(lan)(lan)(lan)(lan)從(cong)多根電(dian)(dian)(dian)(dian)(dian)纜(lan)(lan)(lan)(lan)中區別(bie)(bie)(bie)開來。又由于被識(shi)(shi)別(bie)(bie)(bie)電(dian)(dian)(dian)(dian)(dian)纜(lan)(lan)(lan)(lan)上的(de)(de)信(xin)號(hao)(hao)電(dian)(dian)(dian)(dian)(dian)流強度(du)全(quan)線都是一(yi)(yi)樣的(de)(de)，接收(shou)卡(ka)鉗在電(dian)(dian)(dian)(dian)(dian)纜(lan)(lan)(lan)(lan)沿線所接收(shou)到的(de)(de)電(dian)(dian)(dian)(dian)(dian)磁信(xin)號(hao)(hao)強度(du)一(yi)(yi)致，從(cong)原理上講，識(shi)(shi)別(bie)(bie)(bie)的(de)(de)電(dian)(dian)(dian)(dian)(dian)纜(lan)(lan)(lan)(lan)不受被識(shi)(shi)別(bie)(bie)(bie)電(dian)(dian)(dian)(dian)(dian)纜(lan)(lan)(lan)(lan)長度(du)的(de)(de)限制。