
1.產品概述
長期以來,我國3~35kV係(xi)統(tong)的(de)電(dian)網(wang)大(da)多(duo)采(cai)用(yong)中(zhong)性(xing)點(dian)不(bu)接(jie)地(di)的(de)運(yun)行(xing)方(fang)式(shi),此(ci)類(lei)電(dian)網(wang)在(zai)發(fa)生(sheng)單(dan)相(xiang)接(jie)地(di)時(shi),非(fei)故(gu)障(zhang)相(xiang)的(de)對(dui)地(di)電(dian)壓(ya)將(jiang)升(sheng)高(gao)到(dao)線(xian)電(dian)壓(ya),但(dan)係(xi)統(tong)的(de)線(xian)電(dian)壓(ya)不(bu)變(bian)可(ke)以(yi)帶(dai)故(gu)障(zhang)短(duan)時(shi)間(jian)運(yun)行(xing),提(ti)高(gao)了(le)該(gai)類(lei)電(dian)網(wang)的(de)供(gong)電(dian)可(ke)靠(kao)性(xing),但(dan)這(zhe)種(zhong)供(gong)電(dian)方(fang)式(shi)在(zai)單(dan)相(xiang)接(jie)地(di)電(dian)流(liu)較(jiao)大(da)時(shi)容(rong)易(yi)產(chan)生(sheng)弧(hu)光(guang)接(jie)地(di)過(guo)電(dian)壓(ya)和(he)諧(xie)振(zhen)過(guo)電(dian)壓(ya),給(gei)供(gong)電(dian)設(she)備(bei)造(zao)成(cheng)了(le)極(ji)大(da)的(de)危(wei)害(hai)。為(wei)此(ci)我(wo)公(gong)司(si)研(yan)發(fa)的(de)EYETC-XH係xi列lie消xiao弧hu消xiao諧xie櫃gui,利li用yong目mu前qian已yi成cheng熟shu的de微wei機ji控kong製zhi技ji術shu及ji相xiang應ying的de接jie地di開kai關guan等deng組zu成cheng一yi套tao自zi動dong係xi統tong,該gai產chan品pin在zai係xi統tong發fa生sheng單dan相xiang弧hu光guang接jie地di時shi,將jiang弧hu光guang接jie地di轉zhuan化hua為wei金jin屬shu性xing接jie地di,徹che底di消xiao除chu弧hu光guang接jie地di過guo電dian壓ya,同tong時shi將jiang電dian網wang過guo電dian壓ya限xian製zhi到dao係xi統tong允yun許xu的de範fan圍wei之zhi內nei,使shi3~35kV中zhong性xing點dian非fei有you效xiao接jie地di電dian網wang既ji保bao持chi了le原yuan係xi統tong的de優you點dian,又you將jiang各ge種zhong類lei型xing的de過guo電dian壓ya限xian製zhi到dao盡jin可ke能neng低di的de水shui平ping,徹che底di解jie決jue了le各ge種zhong過guo電dian壓ya對dui設she備bei及ji運yun行xing安an全quan的de威wei脅xie,提ti高gao了le這zhe類lei電dian網wang供gong電dian的de可ke靠kao性xing。
2. 裝置主要特點
2.1消弧功能
2.2消諧功能
2.3過電壓保護功能
2.4代替PT櫃功能
3. 型號說明及圖標

係統電壓:3 6 10 35(KV)
額定電流:63、80、100、125、160、200(A)
4.工作原理
4.1當(dang)係(xi)統(tong)發(fa)生(sheng)故(gu)障(zhang)時(shi),微(wei)機(ji)控(kong)製(zhi)器(qi)根(gen)據(ju)三(san)相(xiang)電(dian)壓(ya)和(he)零(ling)序(xu)電(dian)壓(ya)的(de)幅(fu)值(zhi)信(xin)號(hao)進(jin)行(xing)計(ji)算(suan)處(chu)理(li),以(yi)判(pan)斷(duan)相(xiang)別(bie)和(he)故(gu)障(zhang)的(de)性(xing)質(zhi),根(gen)據(ju)故(gu)障(zhang)性(xing)質(zhi)微(wei)機(ji)控(kong)製(zhi)器(qi)作(zuo)出(chu)如(ru)下(xia)處(chu)理(li):
4.2係統發生金屬性單相接地、高阻接地、或發生PT斷線時,裝置均不動作控製器麵板顯示出故障類型及相別,並輸出繼電器常開接點報警信號;
4.3係統發生弧光接地時消弧裝置在30ms內(nei)令(ling)故(gu)障(zhang)相(xiang)真(zhen)空(kong)接(jie)觸(chu)器(qi)快(kuai)速(su)合(he)閘(zha),迅(xun)速(su)將(jiang)弧(hu)光(guang)接(jie)地(di)轉(zhuan)換(huan)為(wei)金(jin)屬(shu)型(xing)接(jie)地(di),同(tong)時(shi)對(dui)故(gu)障(zhang)點(dian)的(de)電(dian)容(rong)電(dian)流(liu)進(jin)行(xing)分(fen)流(liu),進(jin)一(yi)步(bu)保(bao)證(zheng)電(dian)弧(hu)的(de)可(ke)靠(kao)熄(xi)滅(mie),大(da)大(da)提(ti)高(gao)了(le)係(xi)統(tong)運(yun)行(xing)的(de)可(ke)靠(kao)性(xing),為(wei)了(le)保(bao)證(zheng)裝(zhuang)置(zhi)自(zi)身(shen)和(he)係(xi)統(tong)的(de)安(an)全(quan),消(xiao)弧(hu)裝(zhuang)置(zhi)帶(dai)有(you)高(gao)壓(ya)限(xian)流(liu)熔(rong)斷(duan)器(qi)做(zuo)為(wei)後(hou)備(bei)保(bao)護(hu)。
5.裝置的主要功能
5.1裝置核心控製器采用雙CPU控製,能實現遠程操控功能,滿足無人值班變電所要求.
5.2裝置中裝設大能量過電壓保護器,具有消除雷電過電壓及操作過電壓保護功能.
5.3由於係統中有重要負載存在,消弧裝置動作後,自身能持續工作2個小時以上,以保證不停電的重要負載繼續帶電運行.
5.4具有單相直接接地選線報警功能
5.5裝置具有存儲不少於16次的事故記錄,便於查詢.
5.6裝置綜合性能優於國內同類產品.
5.7通信接口:RS-485,MODBUS規約