一、通信電源系統怎么分類
通(tong)信電源系統按照容量可以(yi)劃分為:
1、中小容量電源系統:輸(shu)出(chu)容量(liang)在300A以下,適用于模塊交換局接入(ru)網等。
2、中大容量電源系統:輸(shu)出容量為300~600A,適(shi)用于中(zhong)小交(jiao)換局衛星通信站。
3、大容量電源系統:輸出容量在600A以上(shang),適用于大交換(huan)局(ju)(ju)、匯接(jie)局(ju)(ju)、長途局(ju)(ju)和(he)關口局(ju)(ju)等。
二、通信電源系統必須具備什么要素
1、可靠性
要求(qiu)各(ge)種電源設備(bei)、各(ge)種開關、轉換開關和(he)其他的配電設備(bei)必須非常可靠,具有很高的平均(jun)無故障(zhang)時(shi)間指標。在(zai)設計通信電源系統(tong)時(shi)力求(qiu)簡單,采(cai)取消(xiao)除或減(jian)少(shao)單點故障(zhang)的設計方法。
2、功能性
要求各(ge)種(zhong)電(dian)(dian)(dian)(dian)源設(she)備必須能穩定(ding)供(gong)電(dian)(dian)(dian)(dian),各(ge)項輸(shu)出指標滿足質(zhi)量要求。供(gong)電(dian)(dian)(dian)(dian)電(dian)(dian)(dian)(dian)壓過(guo)高會引起通(tong)信(xin)負載設(she)備元器件損(sun)壞,供(gong)電(dian)(dian)(dian)(dian)電(dian)(dian)(dian)(dian)壓過(guo)低又會影(ying)響通(tong)信(xin)系統的正常運(yun)行。直流(liu)供(gong)電(dian)(dian)(dian)(dian)系統的衡(heng)重雜音電(dian)(dian)(dian)(dian)壓過(guo)高會影(ying)響電(dian)(dian)(dian)(dian)話通(tong)話質(zhi)量;脈動電(dian)(dian)(dian)(dian)壓過(guo)高會使(shi)數(shu)據通(tong)信(xin)設(she)備的誤碼(ma)率增加。UPS交流(liu)不(bu)間斷(duan)電(dian)(dian)(dian)(dian)源應能抑制市電(dian)(dian)(dian)(dian)電(dian)(dian)(dian)(dian)源的各(ge)種(zhong)干(gan)擾(rao),干(gan)擾(rao)可能引起互聯網傳輸(shu)速率下降(jiang)、數(shu)據丟失(shi)等,甚至導(dao)致網絡(luo)癱瘓。
3、可維修性
通(tong)信(xin)電(dian)源(yuan)(yuan)系(xi)(xi)統(tong)(tong)的(de)(de)設計必須使所有電(dian)源(yuan)(yuan)系(xi)(xi)統(tong)(tong)元件能夠(gou)在(zai)通(tong)信(xin)系(xi)(xi)統(tong)(tong)正常供電(dian)的(de)(de)情況下(xia)進行維護,一(yi)般稱為“同(tong)時維護”,即通(tong)信(xin)電(dian)源(yuan)(yuan)系(xi)(xi)統(tong)(tong)的(de)(de)一(yi)部分設備(bei)在(zai)正常運行的(de)(de)同(tong)時對另一(yi)部分電(dian)源(yuan)(yuan)設備(bei)進行維護。
4、故障容限
通信(xin)電源系(xi)統(tong)(tong)必須(xu)具有(you)抗(kang)故(gu)(gu)障(zhang)的(de)(de)(de)能(neng)力,做到電源系(xi)統(tong)(tong)的(de)(de)(de)任何(he)元件出現故(gu)(gu)障(zhang)都不(bu)會影響(xiang)正(zheng)常供電和(he)通信(xin)負載(zai)(zai)設備的(de)(de)(de)正(zheng)常運行,而且整個(ge)配電系(xi)統(tong)(tong)也必須(xu)有(you)抗(kang)故(gu)(gu)障(zhang)的(de)(de)(de)能(neng)力,從而可以彌補(bu)不(bu)可避(bi)免的(de)(de)(de)負載(zai)(zai)故(gu)(gu)障(zhang)和(he)人為(wei)操作錯誤(wu)造成的(de)(de)(de)影響(xiang)。