一、通信電源工作原理
1、電力通信電源系統的組(zu)成
電源是(shi)保(bao)證通信(xin)暢通的(de)重(zhong)要(yao)(yao)設備,是(shi)通信(xin)系統的(de)重(zhong)要(yao)(yao)組(zu)成部分。通信(xin)電源系統主要(yao)(yao)有六個部分組(zu)成:交流配電設備、整流器(qi)、直流偏大設備、蓄電池組(zu)、監控系統、防雷(lei)接(jie)地系統。
2、電力通信(xin)電源的基本特點(dian)和(he)要求
電(dian)(dian)力(li)通(tong)(tong)信(xin)電(dian)(dian)源系統是(shi)(shi)為(wei)了保證電(dian)(dian)力(li)系統的(de)可(ke)靠(kao)運行,尤其是(shi)(shi)在電(dian)(dian)網事故時保證通(tong)(tong)信(xin)設備穩(wen)定、可(ke)靠(kao)、持(chi)續、獨立運行,而在通(tong)(tong)信(xin)機(ji)房設置的(de)直(zhi)流專用通(tong)(tong)信(xin)電(dian)(dian)源。對通(tong)(tong)信(xin)電(dian)(dian)源系統的(de)基本要求是(shi)(shi)可(ke)靠(kao)性與穩(wen)定性。
眾(zhong)所周知,一般(ban)通信(xin)(xin)設備的(de)故障(zhang)只會(hui)產生局部(bu)(bu)性(xing)的(de)影(ying)響,而(er)如(ru)果通信(xin)(xin)電(dian)源一旦(dan)發生故障(zhang),將會(hui)造成通信(xin)(xin)系(xi)統全(quan)部(bu)(bu)中斷,產生大范圍的(de)影(ying)響。因此電(dian)源系(xi)統交流(liu)(liu)(liu)部(bu)(bu)分(fen)應(ying)采用(yong)可(ke)靠地市電(dian)來源,市電(dian)應(ying)有兩路輸(shu)入并能(neng)自動切換(huan),直流(liu)(liu)(liu)部(bu)(bu)分(fen)應(ying)當采用(yong)整流(liu)(liu)(liu)器與電(dian)池組并聯浮充方式,同時電(dian)源系(xi)統應(ying)有防雷元器件和防浪(lang)涌(yong)保護裝置(zhi)來保證(zheng)電(dian)源系(xi)統的(de)安全(quan)運行。
二、通信電源主要功能有哪些
1、市電(dian)(dian)油機(ji)轉換(huan)屏:一般(ban)在(zai)大樓的(de)低壓配電(dian)(dian)室,將從變壓器(qi)來百的(de)380V市電(dian)(dian)和油機(ji)發(fa)電(dian)(dian)進行切換(huan),當市電(dian)(dian)中(zhong)斷時啟動油機(ji)供電(dian)(dian),是(shi)建筑物總的(de)交流電(dian)(dian)來源。
2、交(jiao)(jiao)流(liu)配電(dian)屏:交(jiao)(jiao)流(liu)輸(shu)入,向周邊(bian)多(duo)路交(jiao)(jiao)流(liu)負載提供交(jiao)(jiao)流(liu)電(dian)源,包括向高頻開關(guan)電(dian)源(整流(liu)器)提供交(jiao)(jiao)流(liu)電(dian)源。
3、高頻(pin)開關電源(yuan):將輸(shu)入的交流(liu)電轉換(huan)成(cheng)直流(liu)電,輸(shu)出至直流(liu)配電屏,給直流(liu)負責(ze)提供(gong)電源(yuan)。
4、直流配電(dian)(dian)(dian)(dian)屏:負(fu)(fu)責(ze)向周(zhou)邊二級直流配電(dian)(dian)(dian)(dian)設備度(du)(電(dian)(dian)(dian)(dian)源分支(zhi)柜、列頭柜)提供直流電(dian)(dian)(dian)(dian)源,以(yi)供最終負(fu)(fu)責(ze)使(shi)用。同時(shi)負(fu)(fu)責(ze)將從(cong)高頻開(kai)關來的直流電(dian)(dian)(dian)(dian)輸(shu)送(song)至(zhi)蓄(xu)電(dian)(dian)(dian)(dian)池(chi)組(zu)。當高頻開(kai)關斷電(dian)(dian)(dian)(dian)時(shi),將從(cong)蓄(xu)電(dian)(dian)(dian)(dian)池(chi)組(zu)來的直流電(dian)(dian)(dian)(dian)輸(shu)送(song)至(zhi)負(fu)(fu)載。
5、蓄(xu)電(dian)(dian)池組:儲能(neng)設備(bei)。高(gao)頻開(kai)關工作回時,蓄(xu)電(dian)(dian)池組負(fu)責儲存-48V直流電(dian)(dian)電(dian)(dian)能(neng);當(dang)高(gao)頻開(kai)關斷電(dian)(dian)時,蓄(xu)電(dian)(dian)池組負(fu)責向負(fu)責輸(shu)送電(dian)(dian)流。保證通(tong)信設備(bei)不斷電(dian)(dian)。
6、電源分(fen)支(zhi)柜:二級配電設備,負責向機房某(mou)個分(fen)區配電。
7、列(lie)頭柜:二(er)級配(pei)電設備,負責向本列(lie)內(nei)的負載配(pei)電供(gong)電,輸入連接(jie)自電源分支(zhi)柜,也(ye)可直接(jie)連接(jie)自直流配(pei)電屏(ping)。
8、UPS:向負載提供交流不間斷電(dian)源。