LED屏幕頻繁跳閘的原因是什么?當屏幕跳閘(zha)發(fa)生時(shi)，我(wo)們應(ying)該怎么做?我(wo)們大家一(yi)起來討論這件事

   1.LED顯示屏漏(lou)電保護器本身(shen)存(cun)在一(yi)定的局(ju)限性

    電(dian)(dian)(dian)(dian)(dian)(dian)(dian)流(liu)(liu)漏(lou)(lou)(lou)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)保(bao)護器，無論(lun)是電(dian)(dian)(dian)(dian)(dian)(dian)(dian)磁(ci)的(de)(de)還是電(dian)(dian)(dian)(dian)(dian)(dian)(dian)子的(de)(de)，在(zai)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)氣設備的(de)(de)主電(dian)(dian)(dian)(dian)(dian)(dian)(dian)路中，采(cai)用磁(ci)感(gan)應電(dian)(dian)(dian)(dian)(dian)(dian)(dian)壓互感(gan)器來采(cai)集漏(lou)(lou)(lou)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)流(liu)(liu)。三(san)相或(huo)三(san)相四線不(bu)可能(neng)在(zai)磁(ci)環(huan)(huan)中完全平衡。全彩(cai)LED顯示(shi)屏三(san)相電(dian)(dian)(dian)(dian)(dian)(dian)(dian)源負載(zai)不(bu)能(neng)完全平衡。在(zai)大(da)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)流(liu)(liu)或(huo)高過電(dian)(dian)(dian)(dian)(dian)(dian)(dian)壓下，高導磁(ci)率的(de)(de)磁(ci)環(huan)(huan)會產生一定(ding)的(de)(de)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)動(dong)勢。如果電(dian)(dian)(dian)(dian)(dian)(dian)(dian)動(dong)勢足夠大(da)，漏(lou)(lou)(lou)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)保(bao)護器就會跳(tiao)閘(zha)。泄(xie)漏(lou)(lou)(lou)保(bao)護器的(de)(de)額(e)(e)定(ding)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)流(liu)(liu)大(da)于額(e)(e)定(ding)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)流(liu)(liu)，漏(lou)(lou)(lou)磁(ci)較大(da)，泄(xie)漏(lou)(lou)(lou)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)流(liu)(liu)應克服磁(ci)環(huan)(huan)本身(shen)的(de)(de)磁(ci)化力。因此，泄(xie)漏(lou)(lou)(lou)保(bao)護器的(de)(de)額(e)(e)定(ding)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)流(liu)(liu)較大(da)，靈(ling)敏度(du)較低，故(gu)障率較高

    2.LED顯示屏在保護(hu)范圍內不能形(xing)成有效的二(er)次(ci)或三次(ci)漏電保護(hu)

    開關箱內的最(zui)后一(yi)(yi)級(ji)漏(lou)(lou)電(dian)保(bao)護(hu)器是電(dian)氣設備的主要保(bao)護(hu)。如果最(zui)后一(yi)(yi)級(ji)漏(lou)(lou)電(dian)保(bao)護(hu)器未安裝、損(sun)壞或(huo)選擇不(bu)當(dang)，可能會(hui)導致上一(yi)(yi)級(ji)漏(lou)(lou)電(dian)保(bao)護(hu)器頻繁(fan)跳閘(zha)。由于全彩(cai)LED顯示屏上有(you)很(hen)(hen)多(duo)金屬導體和(he)電(dian)線連接器，如果電(dian)線絕(jue)緣不(bu)太好，就會(hui)導致經(jing)常(chang)出現漏(lou)(lou)電(dian)的情(qing)況。有(you)些(xie)插座還增加了一(yi)(yi)些(xie)，在很(hen)(hen)多(duo)情(qing)況下都沒有(you)安裝漏(lou)(lou)電(dian)保(bao)護(hu)器，經(jing)常(chang)造(zao)成漏(lou)(lou)電(dian)。只(zhi)有(you)在每個保(bao)護(hu)范圍內形(xing)成有(you)效的二次(ci)或(huo)三次(ci)漏(lou)(lou)電(dian)保(bao)護(hu)模式，才能有(you)效地減少漏(lou)(lou)電(dian)保(bao)護(hu)器的頻繁(fan)跳閘(zha)

  3.漏(lou)電(dian)保護器布局(ju)不合理，造成跳閘

　　由于全彩LED顯示屏安裝現場所具(ju)有的(de)特(te)殊性，如接線錯誤(wu)、線路破損(sun)、開(kai)關箱內漏(lou)電(dian)保(bao)護(hu)器損(sun)壞(huai)、部分用電(dian)器具(ju)沒(mei)(mei)有經過開(kai)關箱等原(yuan)因，以及漏(lou)電(dian)保(bao)護(hu)器本身不可避免(mian)的(de)誤(wu)動和拒動，再加上沒(mei)(mei)有按照實際用電(dian)情(qing)況對漏(lou)電(dian)保(bao)護(hu)器進(jin)行布置，造成(cheng)了總漏(lou)電(dian)保(bao)護(hu)器頻繁跳閘(zha)。

    全彩色LED屏漏(lou)電(dian)(dian)保護(hu)器在額定(ding)漏(lou)電(dian)(dian)動(dong)作(zuo)電(dian)(dian)流(liu)和(he)額定(ding)漏(lou)電(dian)(dian)非動(dong)作(zuo)電(dian)(dian)流(liu)之(zhi)間存在不確定(ding)區域。當漏(lou)電(dian)(dian)保護(hu)器的漏(lou)電(dian)(dian)電(dian)(dian)流(liu)在該(gai)區域波動(dong)時，可能會(hui)引起漏(lou)電(dian)(dian)保護(hu)器不穩定(ding)跳閘

    LED顯(xian)示(shi)屏廣泛應用(yong)于(yu)經濟生活(huo)中，許多(duo)企業、政府部門(men)以及事業單位都會(hui)使用(yong)。為了保證(zheng)生產和運行(xing)的(de)安全，LED顯(xian)示(shi)應用(yong)單位應該并且必(bi)須對LED顯(xian)示(shi)故障有必(bi)要(yao)的(de)解決方案。