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電弧光保護裝置相比傳統保護的優勢

文字:[大][中][小] 手機頁面二維碼 2019/7/4     瀏覽次數:    

現代經濟社(she)會快速開展,電(dian)力(li)(li)系(xi)統(tong)配電(dian)網容量的逐步增大,中低壓母線缺(que)點對電(dian)力(li)(li)系(xi)統(tong)安全工作的影響越(yue)來越(yue)嚴峻,各種(zhong)新(xin)式母線保護原理(li)和(he)設(she)備(bei)(bei)(bei)的不斷出現,為(wei)完結(jie)中低壓專用母線保護供應(ying)了各種(zhong)解 決方案,其間電(dian)弧光保護設(she)備(bei)(bei)(bei)原理(li)簡(jian)略、動作靈敏,對變電(dian)站(zhan)開關柜設(she)備(bei)(bei)(bei)無特(te)(te)殊要(yao)求,適應(ying)于各種(zhong)工作方式等(deng)特(te)(te)征,得到了廣泛的運用。

        現代經濟社會快速開展,電力系(xi)統配(pei)電網容(rong)量(liang)的逐步增大,中(zhong)低(di)壓母線(xian)缺點對(dui)電力系(xi)統安全(quan)工(gong)作的影(ying)響越來越嚴峻,各(ge)(ge)(ge)種(zhong)新式母線(xian)保護原(yuan)理(li)(li)和設備的不斷出(chu)現,為完結中(zhong)低(di)壓專用母線(xian)保護供應了各(ge)(ge)(ge)種(zhong)解 決方(fang)案,其間電弧光保護設備原(yuan)理(li)(li)簡略、動作靈敏,對(dui)變電站開關柜(ju)設備無(wu)特殊要求,適(shi)應于各(ge)(ge)(ge)種(zhong)工(gong)作方(fang)式等特征,得到了廣泛(fan)的運用。

我國現(xian)在開(kai)關(guan)(guan)設備(bei)(bei)遍(bian)及選(xuan)(xuan)(xuan)用(yong)(yong)(yong)(yong)(yong)的(de)(de)(de)(de)保(bao)(bao)(bao)護(hu)(hu)(hu)方(fang)案:1、變壓(ya)器后(hou)備(bei)(bei)過(guo)(guo)(guo)(guo)(guo)流(liu)(liu)(liu)保(bao)(bao)(bao)護(hu)(hu)(hu)。現(xian)在國內(nei)運(yun)用(yong)(yong)(yong)(yong)(yong)廣泛(fan)的(de)(de)(de)(de)中壓(ya)母(mu)(mu)(mu)線(xian)(xian)(xian)(xian)(xian)保(bao)(bao)(bao)護(hu)(hu)(hu)方(fang)案,因(yin)為(wei)考(kao)慮到(dao)與饋(kui)(kui)線(xian)(xian)(xian)(xian)(xian)和(he)母(mu)(mu)(mu)線(xian)(xian)(xian)(xian)(xian)分段開(kai)關(guan)(guan)的(de)(de)(de)(de)配合(he),有必要(yao)滿足階梯性配合(he)準則,致使到(dao)變壓(ya)器處已達 1.0-1.4s,甚至更長,這(zhe)(zhe)一(yi)(yi)動(dong)(dong)(dong)作(zuo)(zuo)速度(du)閃(shan)現(xian)是(shi)(shi)遠遠不(bu)能(neng)滿足快(kuai)速切(qie)(qie)除(chu)(chu)中壓(ya)母(mu)(mu)(mu)線(xian)(xian)(xian)(xian)(xian)缺(que)(que)點(dian)(dian)(dian)(dian)的(de)(de)(de)(de)。2、饋(kui)(kui)線(xian)(xian)(xian)(xian)(xian)過(guo)(guo)(guo)(guo)(guo)流(liu)(liu)(liu)保(bao)(bao)(bao)護(hu)(hu)(hu)閉(bi)(bi)鎖變壓(ya)器過(guo)(guo)(guo)(guo)(guo)流(liu)(liu)(liu)保(bao)(bao)(bao)護(hu)(hu)(hu)。近(jin)年來(lai)(lai)微機(ji)(ji)(ji)過(guo)(guo)(guo)(guo)(guo)流(liu)(liu)(liu)保(bao)(bao)(bao)護(hu)(hu)(hu)在中壓(ya)饋(kui)(kui)線(xian)(xian)(xian)(xian)(xian)廣泛(fan)工作(zuo)(zuo),是(shi)(shi)運(yun)用(yong)(yong)(yong)(yong)(yong)較為(wei)廣泛(fan)的(de)(de)(de)(de)過(guo)(guo)(guo)(guo)(guo)流(liu)(liu)(liu)閉(bi)(bi)鎖式保(bao)(bao)(bao)護(hu)(hu)(hu) 方(fang)案,相(xiang)比變壓(ya)器后(hou)備(bei)(bei)過(guo)(guo)(guo)(guo)(guo)流(liu)(liu)(liu)保(bao)(bao)(bao)護(hu)(hu)(hu)方(fang)案動(dong)(dong)(dong)作(zuo)(zuo)速度(du)有了(le)一(yi)(yi)定(ding)的(de)(de)(de)(de)提(ti)高(gao)(gao),動(dong)(dong)(dong)作(zuo)(zuo)時(shi)(shi)間(jian)(jian)為(wei)300-400ms,但關(guan)(guan)于要(yao)求(qiu)100ms以(yi)內(nei)切(qie)(qie)除(chu)(chu)缺(que)(que)點(dian)(dian)(dian)(dian)明顯也(ye)(ye)是(shi)(shi)不(bu)能(neng)滿足要(yao)求(qiu)的(de)(de)(de)(de)。3、環流(liu)(liu)(liu)原(yuan)理的(de)(de)(de)(de)高(gao)(gao)阻抗母(mu)(mu)(mu)線(xian)(xian)(xian)(xian)(xian)保(bao)(bao)(bao)護(hu)(hu)(hu)。國外選(xuan)(xuan)(xuan)用(yong)(yong)(yong)(yong)(yong)的(de)(de)(de)(de)專用(yong)(yong)(yong)(yong)(yong)電(dian)流(liu)(liu)(liu)差 動(dong)(dong)(dong)中壓(ya)母(mu)(mu)(mu)線(xian)(xian)(xian)(xian)(xian)保(bao)(bao)(bao)護(hu)(hu)(hu),保(bao)(bao)(bao)護(hu)(hu)(hu)動(dong)(dong)(dong)作(zuo)(zuo)時(shi)(shi)間(jian)(jian)35-60ms,考(kao)慮到(dao)線(xian)(xian)(xian)(xian)(xian)路(lu)(lu)的(de)(de)(de)(de)分閘時(shi)(shi)間(jian)(jian),這(zhe)(zhe)一(yi)(yi)動(dong)(dong)(dong)作(zuo)(zuo)速度(du)對(dui)(dui)要(yao)求(qiu)100ms以(yi)內(nei)切(qie)(qie)除(chu)(chu)缺(que)(que)點(dian)(dian)(dian)(dian)來(lai)(lai)說也(ye)(ye)慢,且選(xuan)(xuan)(xuan)用(yong)(yong)(yong)(yong)(yong)這(zhe)(zhe)種(zhong)方(fang)案接線(xian)(xian)(xian)(xian)(xian)雜亂,對(dui)(dui)CT要(yao)求(qiu)高(gao)(gao),保(bao)(bao)(bao)護(hu)(hu)(hu)范圍也(ye)(ye)受限,因(yin)此利(li)于廣泛(fan)運(yun)用(yong)(yong)(yong)(yong)(yong)。 電(dian)弧(hu)光(guang)(guang)保(bao)(bao)(bao)護(hu)(hu)(hu)設備(bei)(bei)的(de)(de)(de)(de)優勢表現(xian):1、原(yuan)理簡略通過(guo)(guo)(guo)(guo)(guo)檢(jian)測(ce)電(dian)弧(hu)光(guang)(guang),結(jie)合(he)過(guo)(guo)(guo)(guo)(guo)流(liu)(liu)(liu)閉(bi)(bi)鎖,結(jie)構(gou)簡略;2、動(dong)(dong)(dong)作(zuo)(zuo)靈(ling)敏可(ke)(ke)(ke)靠通過(guo)(guo)(guo)(guo)(guo)檢(jian)測(ce)電(dian)弧(hu)光(guang)(guang)信號(hao),整套(tao)母(mu)(mu)(mu)線(xian)(xian)(xian)(xian)(xian)的(de)(de)(de)(de)保(bao)(bao)(bao)護(hu)(hu)(hu)動(dong)(dong)(dong)作(zuo)(zuo)時(shi)(shi)間(jian)(jian)可(ke)(ke)(ke)達5-7ms,選(xuan)(xuan)(xuan)用(yong)(yong)(yong)(yong)(yong)檢(jian)測(ce)弧(hu)光(guang)(guang)信號(hao)和(he)過(guo)(guo)(guo)(guo)(guo)流(liu)(liu)(liu)閉(bi)(bi)鎖的(de)(de)(de)(de)雙 判據原(yuan)理,可(ke)(ke)(ke)完結(jie)保(bao)(bao)(bao)護(hu)(hu)(hu)的(de)(de)(de)(de)可(ke)(ke)(ke)靠動(dong)(dong)(dong)作(zuo)(zuo)整套(tao)系(xi)統(tong)連續自檢(jian),充(chong)分保(bao)(bao)(bao)證整套(tao)系(xi)統(tong)作(zuo)(zuo)業的(de)(de)(de)(de)安(an)(an)全性和(he)可(ke)(ke)(ke)靠性。3、缺(que)(que)點(dian)(dian)(dian)(dian)點(dian)(dian)(dian)(dian)定(ding)位(wei):PC機(ji)(ji)(ji)閃(shan)現(xian)弧(hu)光(guang)(guang)發生位(wei)置(zhi),便(bian)利(li)快(kuai)速處理缺(que)(que)點(dian)(dian)(dian)(dian),康復(fu)供電(dian)。4、斷(duan)路(lu)(lu)器失靈(ling)保(bao)(bao)(bao)護(hu)(hu)(hu)在主斷(duan)路(lu)(lu) 器拒動(dong)(dong)(dong)時(shi)(shi)宣(xuan)布(bu)跳閘指令跳上一(yi)(yi)級斷(duan)路(lu)(lu)空(kong)對(dui)(dui)空(kong),提(ti)高(gao)(gao)保(bao)(bao)(bao)護(hu)(hu)(hu)系(xi)統(tong)的(de)(de)(de)(de)安(an)(an)全性。 有用(yong)(yong)(yong)(yong)(yong)下降(jiang)(jiang)電(dian)弧(hu)光(guang)(guang)損害(hai)的(de)(de)(de)(de)方(fang)法是(shi)(shi)以(yi)快(kuai)的(de)(de)(de)(de)速度(du)堵截缺(que)(que)點(dian)(dian)(dian)(dian)電(dian)源,電(dian)弧(hu)光(guang)(guang)保(bao)(bao)(bao)護(hu)(hu)(hu)正是(shi)(shi)為(wei)這(zhe)(zhe)個(ge)需求(qiu)而規劃的(de)(de)(de)(de)。電(dian)弧(hu)光(guang)(guang)保(bao)(bao)(bao)護(hu)(hu)(hu)供應(ying)了(le)15ms跳閘輸出,總的(de)(de)(de)(de)切(qie)(qie)除(chu)(chu)缺(que)(que)點(dian)(dian)(dian)(dian)時(shi)(shi)間(jian)(jian)為(wei)80-100ms,且不(bu)會對(dui)(dui)開(kai)關(guan)(guan)設備(bei)(bei)構(gou)成損壞,比一(yi)(yi)般 的(de)(de)(de)(de)過(guo)(guo)(guo)(guo)(guo)流(liu)(liu)(liu)保(bao)(bao)(bao)護(hu)(hu)(hu)動(dong)(dong)(dong)作(zuo)(zuo)時(shi)(shi)間(jian)(jian)大大減少。在電(dian)弧(hu)光(guang)(guang)缺(que)(que)點(dian)(dian)(dian)(dian)對(dui)(dui)開(kai)關(guan)(guan)等(deng)設備(bei)(bei)構(gou)成危(wei)害(hai)從前就能(neng)有用(yong)(yong)(yong)(yong)(yong)切(qie)(qie)除(chu)(chu)缺(que)(que)點(dian)(dian)(dian)(dian),下降(jiang)(jiang)了(le)缺(que)(que)點(dian)(dian)(dian)(dian)構(gou)成的(de)(de)(de)(de)丟失,保(bao)(bao)(bao)證了(le)設備(bei)(bei)及人(ren)身的(de)(de)(de)(de)安(an)(an)全。 電(dian)弧(hu)光(guang)(guang)保(bao)(bao)(bao)護(hu)(hu)(hu)設備(bei)(bei)是(shi)(shi)專用(yong)(yong)(yong)(yong)(yong)于中低(di)壓(ya)開(kai)關(guan)(guan)柜的(de)(de)(de)(de)母(mu)(mu)(mu)線(xian)(xian)(xian)(xian)(xian)保(bao)(bao)(bao)護(hu)(hu)(hu)設備(bei)(bei),適用(yong)(yong)(yong)(yong)(yong)于母(mu)(mu)(mu)線(xian)(xian)(xian)(xian)(xian)饋(kui)(kui)電(dian)回路(lu)(lu)多的(de)(de)(de)(de)特征,可(ke)(ke)(ke)以(yi)擴充(chong)回路(lu)(lu)數量(liang),一(yi)(yi)起(qi)動(dong)(dong)(dong)作(zuo)(zuo)時(shi)(shi)間(jian)(jian)快(kuai),選(xuan)(xuan)(xuan)用(yong)(yong)(yong)(yong)(yong)電(dian)流(liu)(liu)(liu)閉(bi)(bi)鎖,誤(wu)動(dong)(dong)(dong)機(ji)(ji)(ji)率下降(jiang)(jiang),可(ke)(ke)(ke)靠性高(gao)(gao),并且具有缺(que)(que)點(dian)(dian)(dian)(dian)定(ding)位(wei)功用(yong)(yong)(yong)(yong)(yong)。這(zhe)(zhe)些 都是(shi)(shi)一(yi)(yi)般的(de)(de)(de)(de)電(dian)流(liu)(liu)(liu)保(bao)(bao)(bao)護(hu)(hu)(hu)所不(bu)具備(bei)(bei)的(de)(de)(de)(de)優勢。因(yin)此,中低(di)壓(ya)母(mu)(mu)(mu)線(xian)(xian)(xian)(xian)(xian)裝設電(dian)弧(hu)光(guang)(guang)保(bao)(bao)(bao)護(hu)(hu)(hu)是(shi)(shi)比較理想的(de)(de)(de)(de)選(xuan)(xuan)(xuan)擇。

 

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