技術文(wen)章(zhang)_第(di)(132)頁－武(wu)漢(han)華圖(tu)高電(dian)電(dian)氣科(ke)技有限公(gong)司

Z-V雷電(dian)計數器(qi)校(xiao)驗(yan)儀的使用(yong)方(fang)法
2018-03-29 Z-V雷電(dian)計數器(qi)校(xiao)驗(yan)儀的使用(yong)方(fang)法壹(yi)、Z-V雷電(dian)計數器(qi)測(ce)試儀技術參(can)數1.電(dian)壓(ya):DC900V1200V1600V三(san)檔(dang)2.放電(dian)電(dian)流(liu)100A/10US二.Z-V雷電(dian)計數器(qi)校(xiao)驗(yan)儀使用(yong)方(fang)法1.雷電(dian)計數器(qi)測(ce)試儀使用(yong)前先(xian)充(chong)電(dian),為確(que)保(bao)充(chong)電(dian)效(xiao)果(guo)和(he)延(yan)長電(dian)池使用(yong)壽(shou)命,需使用(yong)專(zhuan)配的充電(dian)器(qi).空(kong)電(dian)池到(dao)充滿(man)需3-4小(xiao)時(shi),充電(dian)器(qi)上紅燈亮表示(shi)正在(zai)充電(dian);綠(lv)燈表(biao)示(shi)充(chong)電(dian)完畢(bi).使用(yong)前在(zai)尾端插接(jie)好所(suo)附地(di)線(xian)插頭(tou),地線夾接大地.2.根(gen)據(ju)計數器(qi)安(an)裝高度(du),適(shi)當拉出(chu)伸縮放電(dian)桿(gan).3.按下(xia)紅(hong)色按鈕,接(jie)通高壓(ya)約(yue)1秒(miao)鐘(zhong),指(zhi)示燈亮微閃(shan),即可(ke)...
繼(ji)電(dian)保(bao)護系(xi)統(tong)接(jie)線(xian)檢查(zha)
2018-03-16 繼(ji)電(dian)保(bao)護系(xi)統(tong)接(jie)線(xian)檢查(zha)差動(dong)保(bao)護在(zai)電(dian)力系統(tong)中(zhong)被廣(guang)泛采(cai)用(yong)在(zai)變(bian)壓(ya)器(qi)、母(mu)線(xian)、短線(xian)路保(bao)護(hu)中(zhong)。壹(yi)般(ban)差動(dong)保(bao)護模(mo)擬試驗(yan)起來比(bi)較(jiao)難(nan)，主要(yao)有(you)以(yi)下(xia)原因:首(shou)先(xian)，差動(dong)保(bao)護的(de)電(dian)流(liu)回路(lu)比(bi)較(jiao)多，兩圈變(bian)壓(ya)器(qi)需要(yao)高、低壓(ya)兩(liang)側(ce)電(dian)流(liu)，三圈變(bian)壓(ya)器(qi)需要(yao)高、中(zhong)、低(di)壓(ya)三(san)側(ce)電(dian)流(liu)，母(mu)線(xian)保護(hu)需要(yao)更(geng)多；第二(er)、差動(dong)保(bao)護的(de)核心(xin)是提供(gong)給差動(dong)繼(ji)電(dian)器(qi)或自動(dong)化系統差動(dong)保(bao)護單(dan)元(yuan)差電(dian)流(liu),要(yao)求各(ge)電(dian)流(liu)回路(lu)的(de)極(ji)性(xing)壹(yi)定要(yao)正(zheng)確(que)，否則極(ji)性(xing)接(jie)錯(cuo)即(ji)變(bian)成和(he)電(dian)流(liu);第三(san)，差動(dong)保(bao)護的(de)特性(xing)測(ce)試比(bi)較(jiao)難(nan)。例(li)如(ru)，變(bian)壓(ya)器(qi)縱(zong)差保護(hu)是利用(yong)比(bi)較(jiao)變(bian)壓(ya)器(qi)兩(liang)側(ce)電(dian)流(liu)的幅(fu)值(zhi)和(he)相位的(de)原理(li)構成的。把(ba)變(bian)...

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