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YW-D860直(zhi)(zhi)流系(xi)統接(jie)地(di)(di)故(gu)障(zhang)(zhang)(zhang)(zhang)測(ce)試儀:是基于調頻調幅技術的新型(xing)直(zhi)(zhi)流故(gu)障(zhang)(zhang)(zhang)(zhang)查(cha)找儀,將快速FFT變換技術引入到直(zhi)(zhi)流接(jie)地(di)(di)故(gu)障(zhang)(zhang)(zhang)(zhang)查(cha)找設備中(zhong),可以在(zai)微小信號的情況下檢測(ce)出各電(dian)壓等級(24V,48V,110V,220V)直(zhi)(zhi)流系(xi)統中(zhong)的各類絕緣故(gu)障(zhang)(zhang)(zhang)(zhang)、直(zhi)(zhi)流互串故(gu)障(zhang)(zhang)(zhang)(zhang)、交(jiao)流串電(dian)故(gu)障(zhang)(zhang)(zhang)(zhang)。
YW-D860直流系統接地故障測試儀
一、概(gai)述
直(zhi)(zhi)(zhi)(zhi)(zhi)流(liu)(liu)系(xi)統(tong)絕(jue)緣故(gu)(gu)(gu)(gu)(gu)(gu)(gu)障(zhang)(zhang)(zhang)、直(zhi)(zhi)(zhi)(zhi)(zhi)流(liu)(liu)互串(chuan)故(gu)(gu)(gu)(gu)(gu)(gu)(gu)障(zhang)(zhang)(zhang)及交(jiao)流(liu)(liu)串(chuan)電(dian)(dian)(dian)故(gu)(gu)(gu)(gu)(gu)(gu)(gu)障(zhang)(zhang)(zhang)是(shi)(shi)是(shi)(shi)一種易發生(sheng)且(qie)對(dui)電(dian)(dian)(dian)力(li)系(xi)統(tong)危害性(xing)較大的(de)(de)故(gu)(gu)(gu)(gu)(gu)(gu)(gu)障(zhang)(zhang)(zhang),危害電(dian)(dian)(dian)力(li)系(xi)統(tong)正常運行。為了能夠更好的(de)(de)幫(bang)助現場維護人(ren)員(yuan)快(kuai)速準確(que)的(de)(de)找(zhao)出直(zhi)(zhi)(zhi)(zhi)(zhi)流(liu)(liu)故(gu)(gu)(gu)(gu)(gu)(gu)(gu)障(zhang)(zhang)(zhang),通過(guo)多(duo)年努力(li),總結(jie)大量現場經驗,開發出了YW-D860型(xing)便攜(xie)式直(zhi)(zhi)(zhi)(zhi)(zhi)流(liu)(liu)故(gu)(gu)(gu)(gu)(gu)(gu)(gu)障(zhang)(zhang)(zhang)查(cha)(cha)找(zhao)儀(yi)。YW-D860是(shi)(shi)基于(yu)調(diao)頻調(diao)幅(fu)(fu)技(ji)術(shu)(shu)的(de)(de)新(xin)(xin)型(xing)直(zhi)(zhi)(zhi)(zhi)(zhi)流(liu)(liu)故(gu)(gu)(gu)(gu)(gu)(gu)(gu)障(zhang)(zhang)(zhang)查(cha)(cha)找(zhao)儀(yi),將快(kuai)速FFT變(bian)換(huan)技(ji)術(shu)(shu)引入到直(zhi)(zhi)(zhi)(zhi)(zhi)流(liu)(liu)接地故(gu)(gu)(gu)(gu)(gu)(gu)(gu)障(zhang)(zhang)(zhang)查(cha)(cha)找(zhao)設備(bei)中(zhong),可(ke)以在微小信號(hao)的(de)(de)情況(kuang)下檢測出各電(dian)(dian)(dian)壓等級(24V,48V,110V,220V)直(zhi)(zhi)(zhi)(zhi)(zhi)流(liu)(liu)系(xi)統(tong)中(zhong)的(de)(de)各類絕(jue)緣故(gu)(gu)(gu)(gu)(gu)(gu)(gu)障(zhang)(zhang)(zhang)、直(zhi)(zhi)(zhi)(zhi)(zhi)流(liu)(liu)互串(chuan)故(gu)(gu)(gu)(gu)(gu)(gu)(gu)障(zhang)(zhang)(zhang)、交(jiao)流(liu)(liu)串(chuan)電(dian)(dian)(dian)故(gu)(gu)(gu)(gu)(gu)(gu)(gu)障(zhang)(zhang)(zhang)。隨著(zhu)電(dian)(dian)(dian)力(li)系(xi)統(tong)對(dui)安全運行的(de)(de)要(yao)求越(yue)(yue)來越(yue)(yue)高,電(dian)(dian)(dian)力(li)系(xi)統(tong)中(zhong)對(dui)各類直(zhi)(zhi)(zhi)(zhi)(zhi)流(liu)(liu)故(gu)(gu)(gu)(gu)(gu)(gu)(gu)障(zhang)(zhang)(zhang)查(cha)(cha)找(zhao)的(de)(de)要(yao)求也將越(yue)(yue)來越(yue)(yue)高,因此,小信號(hao)、高精度(du)、多(duo)頻率、絕(jue)緣趨勢分(fen)析將成為電(dian)(dian)(dian)力(li)系(xi)統(tong)對(dui)新(xin)(xin)一代(dai)直(zhi)(zhi)(zhi)(zhi)(zhi)接故(gu)(gu)(gu)(gu)(gu)(gu)(gu)障(zhang)(zhang)(zhang)查(cha)(cha)找(zhao)儀(yi)的(de)(de)基本要(yao)求。基于(yu)調(diao)頻調(diao)幅(fu)(fu)技(ji)術(shu)(shu)的(de)(de)新(xin)(xin)型(xing)直(zhi)(zhi)(zhi)(zhi)(zhi)流(liu)(liu)故(gu)(gu)(gu)(gu)(gu)(gu)(gu)障(zhang)(zhang)(zhang)查(cha)(cha)找(zhao)儀(yi)引入快(kuai)速FFT變(bian)換(huan)技(ji)術(shu)(shu),通過(guo)對(dui)信號(hao)幅(fu)(fu)頻特(te)性(xing)的(de)(de)詳細分(fen)析平衡(heng)了直(zhi)(zhi)(zhi)(zhi)(zhi)流(liu)(liu)故(gu)(gu)(gu)(gu)(gu)(gu)(gu)障(zhang)(zhang)(zhang)查(cha)(cha)找(zhao)安全性(xing)與靈敏度(du)方面矛盾,將直(zhi)(zhi)(zhi)(zhi)(zhi)流(liu)(liu)故(gu)(gu)(gu)(gu)(gu)(gu)(gu)障(zhang)(zhang)(zhang)技(ji)術(shu)(shu)推向了一個新(xin)(xin)的(de)(de)高度(du),具(ju)在廣泛(fan)的(de)(de)應用前景。
YW-D860直流系統接地故障測試儀
二.功(gong)能特點
(1).系(xi)統(tong)對(dui)地(di)(di)電(dian)(dian)(dian)壓測量功(gong)能,儀器(qi)可(ke)測量系(xi)統(tong)正對(dui)地(di)(di)電(dian)(dian)(dian)壓,負對(dui)地(di)(di)電(dian)(dian)(dian)壓,系(xi)統(tong)電(dian)(dian)(dian)壓,可(ke)實現0—300V的電(dian)(dian)(dian)壓監測范圍;
(2).系(xi)統絕緣阻(zu)抗(kang)測(ce)量功(gong)能,儀器(qi)可測(ce)量系(xi)統正對(dui)地絕緣阻(zu)抗(kang),負對(dui)地絕緣阻(zu)抗(kang),平(ping)衡(heng)橋大(da)小檢測(ce),測(ce)量范圍(wei)0—999KΩ;
(3).交(jiao)流串電(dian)(dian)檢測功能,儀器(qi)可(ke)判斷直流系統中的交(jiao)流串電(dian)(dian)故障,并可(ke)測量直流系統中串入的交(jiao)流電(dian)(dian)電(dian)(dian)壓值(zhi),交(jiao)流電(dian)(dian)壓測量范圍為0—280V;
(4).環(huan)網檢(jian)測及(ji)定位(wei)(wei)功能(neng),儀(yi)器(qi)可(ke)以檢(jian)測兩段母線中存在的各種環(huan)網故(gu)障,包括正極(ji)環(huan)、負極(ji)環(huan)、兩極(ji)環(huan)及(ji)異(yi)極(ji)環(huan)等,并(bing)可(ke)通過波形顯(xian)示及(ji)方(fang)向顯(xian)示來實(shi)現環(huan)網故(gu)障點的定位(wei)(wei);
(5).裝置具(ju)有調(diao)幅、調(diao)頻、信號波形選擇(ze)功能(neng),可實現高(gao)阻環網故障的查(cha)找定(ding)位。
(6).支(zhi)(zhi)路絕(jue)緣阻抗測(ce)量及絕(jue)緣故(gu)障(zhang)定位(wei)功(gong)能,儀器測(ce)量每條支(zhi)(zhi)路對(dui)地絕(jue)緣阻抗大小,并可通過(guo)波(bo)形顯示(shi)及方向顯示(shi)實現絕(jue)緣故(gu)障(zhang)點的定位(wei);
(7).信號(hao)頻(pin)(pin)譜分(fen)析功能(neng)(neng),裝置通過快(kuai)速FFT變(bian)換實現電流信號(hao)的頻(pin)(pin)譜分(fen)析功能(neng)(neng),有(you)效提(ti)取被測信號(hao)頻(pin)(pin)點的信號(hao)幅值,提(ti)高(gao)檢(jian)測精度(du);
(8).電(dian)流表(biao)功能,裝置可做(zuo)高(gao)精度電(dian)流表(biao)使用,電(dian)流測量(liang)分辨率可達0.01mA;
(9).波形曲線顯(xian)示(shi)及(ji)方向顯(xian)示(shi)功能,在使(shi)用探測(ce)儀對(dui)被測(ce)支路進行(xing)檢測(ce)時,顯(xian)示(shi)屏(ping)會以波形曲線形式顯(xian)示(shi)被測(ce)支路電流變(bian)化(hua)情況,方便使(shi)用者快速準(zhun)確的實現(xian)故(gu)障點的查找,有環(huan)網故(gu)障時顯(xian)示(shi)故(gu)障點方向。
三、主要技術指標
1、分析儀(yi)主(zhu)要技術指標
使用環境
(1)工作電源(yuan):DC40V-300V
(2)環境(jing)溫度:-20℃—55℃
(3)相對濕度:0—90%
直流電壓測量
(1)直(zhi)流電壓測(ce)量范圍:0-300V
(2)直流電壓測量分辨率:0.1V
(3)直流電壓測量精度:0.2%
交流電壓測量(liang)
(1)交流(liu)電壓測(ce)量(liang)范圍:0-300V
(2)交流電壓測量分辨率(lv):0.1V
(3)交流電壓測量精度:0.5%
絕緣電阻測量
(1)絕(jue)緣電阻測量范圍(wei):0-999.9KΩ
(2)絕緣電阻(zu)測量分(fen)辨(bian)率:0.1KΩ
(3)絕緣電阻測(ce)量精度:≤±5%
信號幅值調節范(fan)圍:0,0.25,0.5 ,1 mA,2 mA
信(xin)號頻(pin)率調節范圍:0.125 ,0.25 , 0.5 , 1.0Hz
檢測環(huan)網阻值范圍:200KΩ以內
信(xin)號波(bo)(bo)形類型(xing)選擇:正弦波(bo)(bo)、方波(bo)(bo)
工(gong)作模(mo)式:強制信號啟(qi)動、自動信號啟(qi)動
顯示介質及分辨率:TFT,320x240
2、探測儀主要技術指標
絕緣電阻測量
(1)絕(jue)緣電阻測量范圍:0-999.9KΩ
(2)絕緣電阻(zu)測(ce)量分辨率:0.1KΩ
(3) 絕緣(yuan)電阻測量(liang)精度:≤±10%
頻譜(pu)分析范圍
(1)頻譜(pu)分析通道數量:1
(2)頻譜分(fen)析頻段(duan)范(fan)圍:0.125-12.5Hz
(3)頻率(lv)分辨(bian)率(lv): 0.125Hz
電流波形顯示周期:8s;
可(ke)檢測饋(kui)線(xian)電流范(fan)圍:0—2A;
電(dian)流測量范圍:0—200mA;
電流測量分(fen)辨(bian)率:0.01mA;
顯(xian)示介質及分(fen)辨率:TFT,320x240
3、無(wu)線(xian)通信技術指標
(1)速率:2Mbps,由于空(kong)中(zhong)傳輸時間很(hen)短,很(hen)大的(de)(de)降低了(le)無線傳輸中(zhong)的(de)(de)碰(peng)撞現象(xiang)
(2)多(duo)頻點:125 頻點,滿足多(duo)點通信和跳頻通信需要
(3)超小(xiao)(xiao)型:內置(zhi)2.4GHz天(tian)線(xian),體(ti)積小(xiao)(xiao)巧,15x29mm
(4)低功(gong)耗(hao)(hao):當工(gong)作在應答模式通信時,快(kuai)速(su)的空中傳輸及(ji)啟(qi)動時間,很(hen)大的降低了電流消耗(hao)(hao)。