一、通信(xin)電(dian)源(yuan)工作原理
1、電力通(tong)信電源系統的組(zu)成
電(dian)源是保證(zheng)通信(xin)暢(chang)通的重要設備(bei),是通信(xin)系(xi)(xi)統(tong)(tong)(tong)的重要組成部(bu)分。通信(xin)電(dian)源系(xi)(xi)統(tong)(tong)(tong)主要有六個部(bu)分組成:交(jiao)流配(pei)電(dian)設備(bei)、整流器、直(zhi)流偏大設備(bei)、蓄(xu)電(dian)池組、監控系(xi)(xi)統(tong)(tong)(tong)、防雷接地(di)系(xi)(xi)統(tong)(tong)(tong)。
2、電力通(tong)信(xin)電源的(de)基本特點和要求
電力(li)通(tong)(tong)信(xin)電源系(xi)統是(shi)(shi)為了(le)保(bao)證電力(li)系(xi)統的(de)(de)可靠運(yun)行,尤其是(shi)(shi)在電網事故時保(bao)證通(tong)(tong)信(xin)設(she)備穩定、可靠、持續、獨立運(yun)行,而在通(tong)(tong)信(xin)機(ji)房設(she)置的(de)(de)直流專用通(tong)(tong)信(xin)電源。對通(tong)(tong)信(xin)電源系(xi)統的(de)(de)基本要求是(shi)(shi)可靠性與穩定性。
眾所(suo)周知,一般通信設備(bei)的故(gu)障(zhang)(zhang)只會(hui)產生局部(bu)性的影響,而如(ru)果通信電(dian)(dian)源(yuan)一旦發生故(gu)障(zhang)(zhang),將會(hui)造成通信系(xi)統(tong)全部(bu)中斷,產生大范圍的影響。因此電(dian)(dian)源(yuan)系(xi)統(tong)交流(liu)(liu)部(bu)分(fen)應采用可靠地市電(dian)(dian)來源(yuan),市電(dian)(dian)應有兩路輸入并(bing)能自動切換,直(zhi)流(liu)(liu)部(bu)分(fen)應當(dang)采用整(zheng)流(liu)(liu)器與(yu)電(dian)(dian)池(chi)組并(bing)聯(lian)浮充(chong)方式,同時電(dian)(dian)源(yuan)系(xi)統(tong)應有防雷元器件和防浪(lang)涌保(bao)護裝置(zhi)來保(bao)證電(dian)(dian)源(yuan)系(xi)統(tong)的安全運行。
二、通信電源主要功能有哪些
1、市(shi)電(dian)油(you)機轉換屏:一般在大樓的(de)低(di)壓配電(dian)室,將從變壓器來(lai)百的(de)380V市(shi)電(dian)和(he)油(you)機發電(dian)進行切換,當市(shi)電(dian)中斷時(shi)啟(qi)動油(you)機供電(dian),是(shi)建筑物總的(de)交流電(dian)來(lai)源。
2、交(jiao)(jiao)(jiao)流(liu)(liu)配電(dian)屏(ping):交(jiao)(jiao)(jiao)流(liu)(liu)輸入,向(xiang)周邊多路(lu)交(jiao)(jiao)(jiao)流(liu)(liu)負載(zai)提(ti)供(gong)交(jiao)(jiao)(jiao)流(liu)(liu)電(dian)源(yuan),包括向(xiang)高頻(pin)開關電(dian)源(yuan)(整(zheng)流(liu)(liu)器)提(ti)供(gong)交(jiao)(jiao)(jiao)流(liu)(liu)電(dian)源(yuan)。
3、高頻開關電(dian)(dian)源:將輸(shu)入的(de)交(jiao)流(liu)(liu)電(dian)(dian)轉(zhuan)換成直流(liu)(liu)電(dian)(dian),輸(shu)出至直流(liu)(liu)配電(dian)(dian)屏,給(gei)直流(liu)(liu)負(fu)責提供電(dian)(dian)源。
4、直流(liu)配電屏(ping):負責向周(zhou)邊二級(ji)直流(liu)配電設備度(電源分支柜、列頭柜)提供(gong)直流(liu)電源,以供(gong)最終負責使(shi)用(yong)。同時(shi)負責將從高頻開關(guan)來的直流(liu)電輸送至蓄電池(chi)組。當高頻開關(guan)斷電時(shi),將從蓄電池(chi)組來的直流(liu)電輸送至負載(zai)。
5、蓄(xu)電(dian)(dian)(dian)(dian)池(chi)組(zu):儲(chu)能設備。高(gao)(gao)頻開關工作回(hui)時(shi),蓄(xu)電(dian)(dian)(dian)(dian)池(chi)組(zu)負(fu)責儲(chu)存(cun)-48V直(zhi)流(liu)電(dian)(dian)(dian)(dian)電(dian)(dian)(dian)(dian)能;當(dang)高(gao)(gao)頻開關斷(duan)電(dian)(dian)(dian)(dian)時(shi),蓄(xu)電(dian)(dian)(dian)(dian)池(chi)組(zu)負(fu)責向(xiang)負(fu)責輸送電(dian)(dian)(dian)(dian)流(liu)。保(bao)證通信設備不斷(duan)電(dian)(dian)(dian)(dian)。
6、電源分支柜:二(er)級(ji)配電設備,負責向機房某個分區配電。
7、列頭柜:二級配電(dian)設備,負(fu)責(ze)向本(ben)列內的負(fu)載(zai)配電(dian)供電(dian),輸(shu)入連接(jie)自電(dian)源分支柜,也可直(zhi)接(jie)連接(jie)自直(zhi)流配電(dian)屏。
8、UPS:向(xiang)負(fu)載提供交流不間斷(duan)電源(yuan)。