明(ming)泰(tai)(tai)電(dian)(dian)(dian)氣（蘇州）有(you)限公(gong)司(si)是正(zheng)泰(tai)(tai)集團在蘇州地區一家授權的經銷(xiao)企(qi)業，連續(xu)十年(nian)銷(xiao)量(liang)居正(zheng)泰(tai)(tai)營銷(xiao)網絡名(ming)，公(gong)司(si)主要經營“正(zheng)泰(tai)(tai)”牌配電(dian)(dian)(dian)電(dian)(dian)(dian)器(qi)(qi)、控制電(dian)(dian)(dian)器(qi)(qi)、終端(duan)電(dian)(dian)(dian)器(qi)(qi)、電(dian)(dian)(dian)源電(dian)(dian)(dian)器(qi)(qi)、電(dian)(dian)(dian)力電(dian)(dian)(dian)子、儀器(qi)(qi)儀表、建(jian)筑電(dian)(dian)(dian)器(qi)(qi)、高(gao)壓電(dian)(dian)(dian)器(qi)(qi)及成(cheng)套設備。

雙電源轉(zhuan)換(huan)(huan)開關電器（轉(zhuan)換(huan)(huan)開關）將一個或幾個負載電路從一個電源轉(zhuan)換(huan)(huan)至(zhi)另一個電源的(de)電器。

由一(yi)個(ge)（或幾個(ge)）轉換(huan)開關電(dian)器和其它必需的電(dian)器組成，用于(yu)監測電(dian)源(yuan)(yuan)(yuan)(yuan)電(dian)路、并將一(yi)個(ge)或幾個(ge)負載電(dian)路從一(yi)個(ge)電(dian)源(yuan)(yuan)(yuan)(yuan)自動(dong)(dong)轉換(huan)至另一(yi)個(ge)電(dian)源(yuan)(yuan)(yuan)(yuan)的電(dian)器。電(dian)氣行業中簡稱為“雙電(dian)源(yuan)(yuan)(yuan)(yuan)自動(dong)(dong)轉換(huan)開關”或“雙電(dian)源(yuan)(yuan)(yuan)(yuan)開關”。

明泰(tai)電(dian)(dian)(dian)(dian)氣（蘇州）有限公司是正(zheng)泰(tai)集團(tuan)在蘇州地區(qu)一(yi)家(jia)授權的經(jing)銷(xiao)企業，連(lian)續十年銷(xiao)量居正(zheng)泰(tai)營銷(xiao)網絡(luo)名，公司主要經(jing)營“正(zheng)泰(tai)”牌配電(dian)(dian)(dian)(dian)電(dian)(dian)(dian)(dian)器(qi)(qi)、控制電(dian)(dian)(dian)(dian)器(qi)(qi)、終(zhong)端電(dian)(dian)(dian)(dian)器(qi)(qi)、電(dian)(dian)(dian)(dian)源(yuan)電(dian)(dian)(dian)(dian)器(qi)(qi)、電(dian)(dian)(dian)(dian)力電(dian)(dian)(dian)(dian)子、儀器(qi)(qi)儀表、建(jian)筑電(dian)(dian)(dian)(dian)器(qi)(qi)、高壓電(dian)(dian)(dian)(dian)器(qi)(qi)及(ji)成套設(she)備(bei)。

接觸器類

此類電源(yuan)切(qie)換(huan)系(xi)統以接(jie)觸器(qi)為切(qie)換(huan)執(zhi)行部件，切(qie)換(huan)功能(neng)用中間繼(ji)電器(qi)或邏輯控制模塊組成二次(ci)回路完成控制功能(neng)，一般為非標產(chan)品，PC雙電源(yuan)報價，缺點是(shi)主回路接(jie)觸器(qi)工(gong)作需(xu)要二次(ci)回路長期通電，容易產(chan)生溫升(sheng)發(fa)熱、觸點粘結(jie)、線(xian)圈燒毀等故(gu)障。因為是(shi)非標產(chan)品，其組成元器(qi)件較(jiao)(jiao)多，產(chan)品質量(liang)受(shou)元器(qi)件、制造工(gong)藝制約，故(gu)障率較(jiao)(jiao)高，江蘇PC雙電源(yuan)，現已逐漸被新產(chan)品代替。

在供配電(dian)(dian)技術里的存在有雙電(dian)(dian)源和雙回路，那什(shen)么(me)是雙電(dian)(dian)源，什(shen)么(me)是雙回路，有什(shen)么(me)作用，PC雙電(dian)(dian)源供應，兩者之間的關系是什(shen)么(me)？

①雙(shuang)電(dian)(dian)(dian)(dian)(dian)源(yuan)(yuan)(yuan)是指相(xiang)對互(hu)相(xiang)獨(du)立的(de)(de)兩(liang)個(ge)電(dian)(dian)(dian)(dian)(dian)源(yuan)(yuan)(yuan)。對負荷用(yong)(yong)戶或(huo)負荷設(she)備(bei)而言(yan)所(suo)謂的(de)(de)雙(shuang)電(dian)(dian)(dian)(dian)(dian)源(yuan)(yuan)(yuan)包含(han)著兩(liang)層意思(si)：一(yi)(yi)(yi)是雙(shuang)電(dian)(dian)(dian)(dian)(dian)源(yuan)(yuan)(yuan)，二(er)是回(hui)(hui)路（可(ke)能(neng)距離(li)會很(hen)短，例如自帶(dai)蓄電(dian)(dian)(dian)(dian)(dian)池的(de)(de)應急燈）；它既強調兩(liang)個(ge)電(dian)(dian)(dian)(dian)(dian)源(yuan)(yuan)(yuan)的(de)(de)互(hu)相(xiang)備(bei)用(yong)(yong)或(huo)一(yi)(yi)(yi)用(yong)(yong)一(yi)(yi)(yi)備(bei)，又強調兩(liang)回(hui)(hui)線路的(de)(de)互(hu)相(xiang)備(bei)用(yong)(yong)或(huo)一(yi)(yi)(yi)用(yong)(yong)一(yi)(yi)(yi)備(bei)。②雙(shuang)回(hui)(hui)路則只是指兩(liang)回(hui)(hui)線路，它只強調供(gong)配電(dian)(dian)(dian)(dian)(dian)線路的(de)(de)互(hu)相(xiang)備(bei)用(yong)(yong)或(huo)一(yi)(yi)(yi)用(yong)(yong)一(yi)(yi)(yi)備(bei)，它對電(dian)(dian)(dian)(dian)(dian)源(yuan)(yuan)(yuan)無要求，即(ji)指此雙(shuang)回(hui)(hui)路可(ke)以(yi)由一(yi)(yi)(yi)個(ge)公共的(de)(de)電(dian)(dian)(dian)(dian)(dian)源(yuan)(yuan)(yuan)供(gong)電(dian)(dian)(dian)(dian)(dian)，也可(ke)以(yi)由兩(liang)個(ge)不同的(de)(de)電(dian)(dian)(dian)(dian)(dian)源(yuan)(yuan)(yuan)供(gong)電(dian)(dian)(dian)(dian)(dian)。

雙(shuang)回(hui)路供(gong)電(dian)一般是由(you)主母(mu)線(xian)(xian)和應急或備用母(mu)線(xian)(xian)同(tong)時供(gong)電(dian)，正常情況下由(you)主母(mu)線(xian)(xian)取(qu)電(dian)，主母(mu)線(xian)(xian)檢修(xiu)、

損壞或(huo)遇電源停電等主母(mu)線失電情況下切換至應(ying)急或(huo)備用(yong)母(mu)線供電，

此切換對于

一級(ji)負(fu)(fu)荷(he)(he)和特別重要負(fu)(fu)荷(he)(he)在供電末端進行。