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ZLT-3000直流系統接地短路斷路測試儀

產品介紹(shao)：

ZLT-3000直流系統接地短路斷路測試儀是一種榮獲國家的新(xin)型智能數字化(hua)產品。主(zhu)要用于電(dian)(dian)(dian)力(li)、石(shi)油化(hua)工、煤(mei)炭等部門的發(fa)電(dian)(dian)(dian)廠(chang)或變(bian)(bian)電(dian)(dian)(dian)站的220V、110V、48V、24V等直流(liu)系(xi)統(tong)接地(di)故(gu)障查找(zhao)和判斷。直流(liu)系(xi)統(tong)接地(di)故(gu)障測(ce)試儀在查找(zhao)直流(liu)系(xi)統(tong)故(gu)障時，不(bu)需拉開直流(liu)系(xi)統(tong)的電(dian)(dian)(dian)源，就可以查找(zhao)出接地(di)點(dian)，并且具有(you)使(shi)用簡單、安全可靠等優點(dian)，是發(fa)電(dian)(dian)(dian)廠(chang)、變(bian)(bian)電(dian)(dian)(dian)站查找(zhao)直流(liu)系(xi)統(tong)接地(di)故(gu)障的儀器。

直流(liu)(liu)系(xi)統接(jie)(jie)(jie)地(di)故障(zhang)測試(shi)儀可(ke)(ke)帶(dai)電(dian)(dian)(dian)查(cha)找(zhao)各種接(jie)(jie)(jie)地(di)：單回線(xian)供(gong)電(dian)(dian)(dian)、雙回線(xian)供(gong)電(dian)(dian)(dian)、環網供(gong)電(dian)(dian)(dian)、二極(ji)管隔離供(gong)電(dian)(dian)(dian)接(jie)(jie)(jie)地(di),平衡接(jie)(jie)(jie)地(di),一(yi)點(dian)(dian)(dian)或多點(dian)(dian)(dian)接(jie)(jie)(jie)地(di)。帶(dai)電(dian)(dian)(dian)查(cha)找(zhao)各種串(chuan)電(dian)(dian)(dian)：I、II段同(tong)極(ji)串(chuan)電(dian)(dian)(dian)、正負(fu)極(ji)串(chuan)電(dian)(dian)(dian)、交直流(liu)(liu)串(chuan)電(dian)(dian)(dian)。其(qi)*的智能化(hua)定向定點(dian)(dian)(dian)技(ji)術能指明(ming)查(cha)找(zhao)方向，多種提示(shi)直接(jie)(jie)(jie)指引查(cha)找(zhao)到故障(zhang)點(dian)(dian)(dian)，可(ke)(ke)直觀(guan)顯示(shi)查(cha)找(zhao)點(dian)(dian)(dian)故障(zhang)性(xing)(xing)質（阻性(xing)(xing)、容(rong)性(xing)(xing)、感(gan)性(xing)(xing)），彩色液(ye)晶(jing)表盤直接(jie)(jie)(jie)指示(shi)，真人(ren)語音(yin)播報當前狀態，用戶可(ke)(ke)根(gen)據(ju)信號(hao)性(xing)(xing)質判(pan)斷故障(zhang)的方向，即使是(shi)非專業人(ren)員(yuan)也可(ke)(ke)輕松查(cha)找(zhao)到故障(zhang)點(dian)(dian)(dian)。專家(jia)模式下大屏幕彩色液(ye)晶(jing)實時(shi)顯示(shi)接(jie)(jie)(jie)地(di)電(dian)(dian)(dian)流(liu)(liu)真實波形及接(jie)(jie)(jie)地(di)電(dian)(dian)(dian)阻，接(jie)(jie)(jie)地(di)判(pan)斷更直觀(guan)明(ming)了。抗分布電(dian)(dian)(dian)容(rong)設(she)計，*消除現場(chang)分布電(dian)(dian)(dian)容(rong)影響。屏幕中文提示(shi)，指導查(cha)找(zhao)接(jie)(jie)(jie)地(di)。鉗(qian)子“心”圓設(she)計，同(tong)時(shi)可(ke)(ke)夾多根(gen)電(dian)(dian)(dian)纜或單根(gen)回路，另配(pei)有國內小(xiao)(xiao)鴨嘴形小(xiao)(xiao)鉗(qian)口。小(xiao)(xiao)電(dian)(dian)(dian)流(liu)(liu)設(she)計，對繼電(dian)(dian)(dian)保護、自動(dong)裝置沒(mei)有影響。

▲直流系統接(jie)地故(gu)障測試儀工(gong)作(zuo)模(mo)式(shi)

直(zhi)(zhi)(zhi)流(liu)系統(tong)接(jie)(jie)地(di)(di)(di)(di)故(gu)(gu)障(zhang)測(ce)(ce)試儀用(yong)于在(zai)不斷電情況下查找(zhao)(zhao)發電廠(chang)、變(bian)電站直(zhi)(zhi)(zhi)流(liu)系統(tong)接(jie)(jie)地(di)(di)(di)(di)點(dian)(dian)(dian)(dian)的準(zhun)確位置(zhi)。該儀器在(zai)原理(li)上引(yin)入一種全新的探測(ce)(ce)方法----波(bo)(bo)形分(fen)(fen)析法，其(qi)主要(yao)特(te)點(dian)(dian)(dian)(dian)和(he)優點(dian)(dian)(dian)(dian)：檢測(ce)(ce)靈敏度高、排查系統(tong)分(fen)(fen)布電容(rong)能(neng)力強(qiang)、不斷電查找(zhao)(zhao)、不影響系統(tong)正常(chang)運行(xing)、抗干擾能(neng)力強(qiang)、安全可(ke)(ke)(ke)(ke)靠(kao)等。 波(bo)(bo)形分(fen)(fen)析法，就是(shi)利用(yong)在(zai)直(zhi)(zhi)(zhi)流(liu)母線與(yu)地(di)(di)(di)(di)之間加入一種特(te)定的周期性(xing)(xing)電壓信(xin)號，通(tong)過卡鉗式探頭探測(ce)(ce)各支路電流(liu)，分(fen)(fen)析、計算電流(liu)信(xin)號基波(bo)(bo)與(yu)諧波(bo)(bo)的相位及(ji)相位差，進而(er)判斷是(shi)否存在(zai)接(jie)(jie)地(di)(di)(di)(di)故(gu)(gu)障(zhang)及(ji)接(jie)(jie)地(di)(di)(di)(di)故(gu)(gu)障(zhang)點(dian)(dian)(dian)(dian)。 其(qi)*的智能(neng)化定向定點(dian)(dian)(dian)(dian)技術(shu)能(neng)指明查找(zhao)(zhao)方向，多種提示直(zhi)(zhi)(zhi)接(jie)(jie)指引(yin)查找(zhao)(zhao)到故(gu)(gu)障(zhang)點(dian)(dian)(dian)(dian)，可(ke)(ke)(ke)(ke)直(zhi)(zhi)(zhi)觀顯示查找(zhao)(zhao)點(dian)(dian)(dian)(dian)故(gu)(gu)障(zhang)性(xing)(xing)質(zhi)（阻性(xing)(xing)、容(rong)性(xing)(xing)、感性(xing)(xing)），彩色液晶表(biao)盤直(zhi)(zhi)(zhi)接(jie)(jie)指示，真人語音播(bo)報當(dang)前狀態，用(yong)戶可(ke)(ke)(ke)(ke)根(gen)據信(xin)號性(xing)(xing)質(zhi)判斷故(gu)(gu)障(zhang)的方向，即(ji)使是(shi)非專業人員也(ye)可(ke)(ke)(ke)(ke)輕松查找(zhao)(zhao)到故(gu)(gu)障(zhang)點(dian)(dian)(dian)(dian)。

▲直流系統接地故障測試儀功能特點

安(an)全(quan)性(xing)高：根(gen)據(ju)直流系統(tong)嚴(yan)格的安(an)全(quan)要求(qiu)設計，三檔電(dian)壓可調(diao)，三檔電(dian)流可調(diao)，適合于不(bu)同直流系統(tong)接地(di)故障測試儀現場使用照片的測試系統(tong)，采(cai)用數字濾波技術，保證(zheng)在(zai)正常使用時與信號(hao)系統(tong)互不(bu)干擾，不(bu)會(hui)造成安(an)全(quan)型繼電(dian)器錯(cuo)誤(wu)動作，不(bu)會(hui)錯(cuo)誤(wu)點燈，不(bu)會(hui)吸收信號(hao)電(dian)源電(dian)流；

實(shi)用(yong)(yong)性強：查(cha)(cha)找時不(bu)必停(ting)電，不(bu)必摘頭甩線，可在線使用(yong)(yong)，能(neng)應用(yong)(yong)于復(fu)雜的網狀配線中(zhong)。其(qi)*的智能(neng)化(hua)定(ding)向(xiang)定(ding)點(dian)(dian)技(ji)術能(neng)指(zhi)明(ming)查(cha)(cha)找方向(xiang)，指(zhi)出故障(zhang)點(dian)(dian)處所(suo)，猶如向(xiang)導一般(ban)，帶領(ling)查(cha)(cha)找者直奔故障(zhang)點(dian)(dian)。采用(yong)(yong)彩(cai)色液晶顯示器，友好的智能(neng)化(hua)人機(ji)界面，使操作簡便(bian)實(shi)用(yong)(yong)；

抗干擾性強：*的技術，三種輸出測(ce)試(shi)頻率，可(ke)根據不(bu)(bu)同的測(ce)試(shi)系統選(xuan)用不(bu)(bu)同的測(ce)試(shi)頻率，超低(di)頻模(mo)式，保證(zheng)查找(zhao)時不(bu)(bu)受(shou)線間分布電容(rong)干擾，不(bu)(bu)受(shou)接地阻值干擾，不(bu)(bu)受(shou)工頻干擾，高頻模(mo)式，可(ke)以快速的定(ding)位故障(zhang)區(qu)域，具有強的抗干擾能力；

▲直流(liu)系統(tong)接地故障測(ce)試儀技術參數

信(xin)號發生(sheng)器：

輸出信號頻率：0.2HZ、4Hz/8HZ、300HZ

輸(shu)出大(da)信號電(dian)壓：±24V±5%

測量對地電(dian)阻(zu)：0-999 kΩ，分辨率(lv)1 kΩ

測(ce)量對地分布電(dian)容：0-999 uF，分辨率1 uF

輸出電流(liu)：0—3mA

抗(kang)分(fen)布電容干(gan)擾：800kΩ/uF 

電(dian)源方式(shi)：電(dian)池供電(dian)

顯示方(fang)式：彩色液晶顯示器

適用于直流系統電壓等級：220V、110V、48V、24V信(xin)號(hao)接(jie)收器：

靈敏度：可查找500 KΩ以內(nei)的各種接地(di)故障；

查找接地點準確(que)率：100%；

指示(shi)(shi)接(jie)地(di)方向：箭頭(tou)指示(shi)(shi)、真人語(yu)音提(ti)示(shi)(shi)；

顯示(shi)接地電流：0—3mA；

信號顯示(shi)：波形顯示(shi)；

鉗形互(hu)感(gan)器：2把(ba) 絕緣≥100MΩ

工作電(dian)源(yuan)：電(dian)池供電(dian)

大鉗：可檢(jian)測電纜線徑(jing)≤42mm；

小(xiao)鉗： 可檢測電纜線(xian)徑≤6mm

▲直流系(xi)統接地故障測試儀產品配置(zhi)

標準(zhun)配置：信號(hao)發生器(qi)：一臺、信號(hao)接(jie)收機：一臺、卡鉗：2支、充(chong)電(dian)器(qi)：1個(ge)、信號(hao)輸(shu)出(chu)引線(xian)：1根、電(dian)源(yuan)線(xian)：1根、使用說明書(shu)：一本、鋁(lv)合(he)金(jin)箱：一個(ge)