以直(zhi)(zhi)(zhi)流(liu)(liu)(liu)(liu)(liu)匯(hui)流(liu)(liu)(liu)(liu)(liu)箱(xiang)(xiang)(xiang)為(wei)例，主(zhu)要(yao)體(ti)現(xian)在(zai)：除匯(hui)流(liu)(liu)(liu)(liu)(liu)和(he)防雷(lei)的(de)(de)主(zhu)要(yao)作(zuo)(zuo)用外(wai)，還增加了(le)電(dian)壓、電(dian)流(liu)(liu)(liu)(liu)(liu)、溫度的(de)(de)采(cai)(cai)集和(he)工(gong)(gong)作(zuo)(zuo)狀(zhuang)(zhuang)態監控，不(bu)平衡和(he)失效報警、數據與傳輸等。各(ge)(ge)(ge)發(fa)電(dian)企業對光(guang)伏電(dian)站的(de)(de)使用壽命規定(ding)為(wei)25年，在(zai)它的(de)(de)全(quan)(quan)生(sheng)命周期里，里面(mian)的(de)(de)元(yuan)器(qi)件(jian)(jian)(jian)能否經受住(zhu)考(kao)驗，業內(nei)都沒有一個統(tong)一標準(zhun)。為(wei)了(le)掌握光(guang)伏組件(jian)(jian)(jian)設備(bei)的(de)(de)運行(xing)(xing)狀(zhuang)(zhuang)況(kuang)，及時發(fa)現(xian)和(he)消除設備(bei)缺陷預防事故的(de)(de)發(fa)生(sheng)，確(que)保(bao)完(wan)成發(fa)電(dian)計劃，應(ying)認真(zhen)做好(hao)設備(bei)巡視檢(jian)查(cha)工(gong)(gong)作(zuo)(zuo)。檢(jian)查(cha)直(zhi)(zhi)(zhi)流(liu)(liu)(liu)(liu)(liu)匯(hui)流(liu)(liu)(liu)(liu)(liu)箱(xiang)(xiang)(xiang)各(ge)(ge)(ge)部件(jian)(jian)(jian)正(zheng)常無變形，安裝牢固無松(song)動現(xian)象(xiang)。檢(jian)查(cha)直(zhi)(zhi)(zhi)流(liu)(liu)(liu)(liu)(liu)匯(hui)流(liu)(liu)(liu)(liu)(liu)箱(xiang)(xiang)(xiang)外(wai)觀干凈無積灰(hui)、設備(bei)標號(hao)無脫(tuo)落，設備(bei)標號(hao)字跡清晰(xi)準(zhun)確(que)。檢(jian)查(cha)直(zhi)(zhi)(zhi)流(liu)(liu)(liu)(liu)(liu)匯(hui)流(liu)(liu)(liu)(liu)(liu)箱(xiang)(xiang)(xiang)鎖(suo)具完(wan)好(hao)，密封性良好(hao)。直(zhi)(zhi)(zhi)流(liu)(liu)(liu)(liu)(liu)匯(hui)流(liu)(liu)(liu)(liu)(liu)箱(xiang)(xiang)(xiang)正(zheng)常運行(xing)(xing)時各(ge)(ge)(ge)熔斷器(qi)全(quan)(quan)部投入，采(cai)(cai)集板(ban)運行(xing)(xing)正(zheng)常，防雷(lei)器(qi)、開關全(quan)(quan)部投入運行(xing)(xing)。檢(jian)查(cha)各(ge)(ge)(ge)元(yuan)件(jian)(jian)(jian)無過熱、異味(wei)、斷線等異常現(xian)象(xiang)，各(ge)(ge)(ge)電(dian)氣元(yuan)件(jian)(jian)(jian)在(zai)運行(xing)(xing)要(yao)求的(de)(de)狀(zhuang)(zhuang)態。采(cai)(cai)集板(ban)電(dian)源模塊運行(xing)(xing)指示(shi)(shi)燈亮，各(ge)(ge)(ge)元(yuan)件(jian)(jian)(jian)無異常。防雷(lei)模塊無擊(ji)穿現(xian)象(xiang)。各(ge)(ge)(ge)支路(lu)保(bao)險無明顯破裂(lie)。檢(jian)查(cha)直(zhi)(zhi)(zhi)流(liu)(liu)(liu)(liu)(liu)匯(hui)流(liu)(liu)(liu)(liu)(liu)箱(xiang)(xiang)(xiang)的(de)(de)直(zhi)(zhi)(zhi)流(liu)(liu)(liu)(liu)(liu)開關配置正(zheng)確(que)，無脫(tuo)口，保(bao)護(hu)定(ding)值正(zheng)確(que)。檢(jian)查(cha)數據采(cai)(cai)集器(qi)指示(shi)(shi)正(zheng)常，信號(hao)顯示(shi)(shi)與實際工(gong)(gong)況(kuang)相符。直(zhi)(zhi)(zhi)流(liu)(liu)(liu)(liu)(liu)匯(hui)流(liu)(liu)(liu)(liu)(liu)箱(xiang)(xiang)(xiang)柜(ju)體(ti)接(jie)地線連接(jie)可(ke)靠；斷裂(lie)、脫(tuo)落及時向當班(ban)值長匯(hui)報并(bing)進(jin)行(xing)(xing)處理。檢(jian)查(cha)直(zhi)(zhi)(zhi)流(liu)(liu)(liu)(liu)(liu)匯(hui)流(liu)(liu)(liu)(liu)(liu)箱(xiang)(xiang)(xiang)進(jin)出(chu)線電(dian)纜完(wan)好(hao)。匯(hui)流(liu)(liu)(liu)(liu)(liu)箱(xiang)(xiang)(xiang)作(zuo)(zuo)為(wei)光(guang)伏發(fa)電(dian)系統(tong)基礎的(de)(de)監控單(dan)元(yuan)，數量多(duo)、分(fen)布廣。太(tai)陽(yang)能匯(hui)流(liu)(liu)(liu)(liu)(liu)箱(xiang)(xiang)(xiang)新(xin)報價

光(guang)伏(fu)匯(hui)(hui)流(liu)箱(xiang)(xiang)總匯(hui)(hui)流(liu)斷(duan)路器(qi)機械及電氣(qi)壽(shou)命(ming)(ming)(ming)：總匯(hui)(hui)流(liu)斷(duan)路器(qi)機電壽(shou)命(ming)(ming)(ming)都達到5000次(ci)以上，光(guang)伏(fu)系(xi)統(tong)25年需求總壽(shou)命(ming)(ming)(ming)為1250次(ci)（50次(ci)/年×25年=1250次(ci)）。光(guang)伏(fu)匯(hui)(hui)流(liu)箱(xiang)(xiang)熔斷(duan)器(qi)壽(shou)命(ming)(ming)(ming)：帶塑料外(wai)殼基(ji)座(zuo)的(de)(de)撥插壽(shou)命(ming)(ming)(ming)：熔斷(duan)器(qi)按標(biao)準規定不能帶電操(cao)作(zuo)(zuo)，出(chu)現(xian)誤操(cao)作(zuo)(zuo)的(de)(de)機率較大(da)，一旦誤操(cao)作(zuo)(zuo)熔斷(duan)器(qi)必損傷和更換。該產品無電氣(qi)壽(shou)命(ming)(ming)(ming)。光(guang)伏(fu)匯(hui)(hui)流(liu)箱(xiang)(xiang)接(jie)線(xian)端子與電線(xian)電纜連接(jie)強度(du)(du)：市場銷售(shou)產品大(da)部分采用(yong)軟線(xian)連接(jie)，接(jie)點多，風險大(da)，在熱應力的(de)(de)作(zuo)(zuo)用(yong)下(xia)，連接(jie)強度(du)(du)會遞減，給電站的(de)(de)運行造成了(le)不安全(quan)因素，出(chu)現(xian)連接(jie)處(chu)起(qi)弧/發(fa)熱等問題(ti)。光(guang)伏(fu)匯(hui)(hui)流(liu)箱(xiang)(xiang)鉸鏈變形或折斷(duan)：在戶外(wai)一些大(da)風和開啟頻繁的(de)(de)情況下(xia)，鉸鏈經常發(fa)生變形甚至折斷(duan)；由于(yu)光(guang)伏(fu)匯(hui)(hui)流(liu)箱(xiang)(xiang)的(de)(de)防護等級為IP65，所(suo)以要求鎖扣(kou)可以長期(qi)有效地對(dui)膠(jiao)條進行擠壓來(lai)保證箱(xiang)(xiang)體(ti)的(de)(de)密封性。智能化匯(hui)(hui)流(liu)箱(xiang)(xiang)進貨價1000V直(zhi)流(liu)匯(hui)(hui)流(liu)箱(xiang)(xiang)有幾路？

光伏(fu)發電系統對(dui)光伏(fu)匯(hui)流箱(xiang)模(mo)塊電源有以下幾點(dian)要(yao)求：200-1500VDC電壓(ya)(ya)(ya)輸(shu)(shu)(shu)入(ru)，輸(shu)(shu)(shu)出12V/15V/24V等常規電壓(ya)(ya)(ya)輸(shu)(shu)(shu)入(ru)輸(shu)(shu)(shu)出之間可(ke)以承受較高(gao)的(de)隔離(li)電壓(ya)(ya)(ya)特性具備輸(shu)(shu)(shu)入(ru)欠壓(ya)(ya)(ya)、防反接(jie)等保護，具備輸(shu)(shu)(shu)出過(guo)流、短路、過(guo)壓(ya)(ya)(ya)等保護功能要(yao)滿足不同地域的(de)極端工作(zuo)溫差要(yao)求針對(dui)光伏(fu)發電系統的(de)高(gao)壓(ya)(ya)(ya)特性及(ji)應用(yong)需求，1500V直流匯(hui)流箱(xiang)一(yi)般(ban)選擇200-1500VDC電壓(ya)(ya)(ya)輸(shu)(shu)(shu)入(ru)、4000VAC隔離(li)的(de)模(mo)塊電源，并(bing)結合光伏(fu)系統各單元電路安全隔離(li)特性，設計一(yi)整套控制單元的(de)電源方案，確保光伏(fu)匯(hui)流箱(xiang)在高(gao)壓(ya)(ya)(ya)高(gao)寒室外場合能夠穩定(ding)運行(xing)。

在光伏(fu)匯流(liu)箱系統中(zhong)，應(ying)具備的(de)200-1500VDC電(dian)(dian)(dian)(dian)(dian)壓(ya)輸入、4000VAC隔離(li)耐(nai)壓(ya)、高可(ke)靠特性，光伏(fu)匯流(liu)箱的(de)監控模塊可(ke)從高壓(ya)端直接取(qu)電(dian)(dian)(dian)(dian)(dian)，經(jing)轉換輸出24VDC電(dian)(dian)(dian)(dian)(dian)壓(ya)給監控電(dian)(dian)(dian)(dian)(dian)路(lu)供(gong)電(dian)(dian)(dian)(dian)(dian)。采用高精(jing)度霍爾傳感器隔離(li)供(gong)電(dian)(dian)(dian)(dian)(dian)，充分確(que)保高低壓(ya)之間(jian)安(an)全(quan)(quan)隔離(li)；光伏(fu)匯流(liu)箱應(ying)采用相(xiang)應(ying)的(de)模塊進行隔離(li)轉換輸出3.3V給MCU供(gong)電(dian)(dian)(dian)(dian)(dian)；通信采用集成隔離(li)電(dian)(dian)(dian)(dian)(dian)源(yuan)的(de)通信模塊，可(ke)抑制電(dian)(dian)(dian)(dian)(dian)磁(ci)干擾和消(xiao)除接地環路(lu)影響。整體電(dian)(dian)(dian)(dian)(dian)源(yuan)方案在滿足功能需求及(ji)安(an)全(quan)(quan)隔離(li)，同(tong)時又(you)便(bian)于整體系統簡化設計和穩(wen)定可(ke)靠。匯流(liu)箱在整個(ge)電(dian)(dian)(dian)(dian)(dian)站中(zhong)的(de)投資(zi)占比不到1%，但(dan)電(dian)(dian)(dian)(dian)(dian)站的(de)發電(dian)(dian)(dian)(dian)(dian)量卻100%的(de)要從匯流(liu)箱里面走。

根據發(fa)電(dian)模式(shi)(shi)可以分(fen)(fen)為(wei)：滿(man)足集中式(shi)(shi)逆變(bian)器(qi)需(xu)要(yao)的(de)直流(liu)(liu)匯(hui)流(liu)(liu)箱(xiang)；滿(man)足組串式(shi)(shi)逆變(bian)器(qi)需(xu)要(yao)的(de)交流(liu)(liu)匯(hui)流(liu)(liu)箱(xiang)；滿(man)足集散式(shi)(shi)逆變(bian)器(qi)需(xu)要(yao)的(de)多路(lu)(lu)MPPT直流(liu)(liu)升(sheng)壓(ya)匯(hui)流(liu)(liu)箱(xiang)。以系統額定電(dian)壓(ya)分(fen)(fen)類(lei)(lei)：DC500V、DC750V、DC1000V、DC1500V；以匯(hui)流(liu)(liu)回(hui)路(lu)(lu)數(shu)分(fen)(fen)類(lei)(lei)：6~16路(lu)(lu)；以匯(hui)流(liu)(liu)回(hui)路(lu)(lu)保護(hu)分(fen)(fen)類(lei)(lei)：熔(rong)斷(duan)器(qi)式(shi)(shi)、斷(duan)路(lu)(lu)器(qi)式(shi)(shi)；以控(kong)制(zhi)分(fen)(fen)類(lei)(lei)：智能型(xing)(xing)、非智能型(xing)(xing)；以海撥高度(du)(du)分(fen)(fen)類(lei)(lei)：2000m以下為(wei)標準型(xing)(xing)；2000m以上(shang)為(wei)高原型(xing)(xing)；全適應的(de)通(tong)用型(xing)(xing)；防(fang)護(hu)等級：IP65；主斷(duan)路(lu)(lu)器(qi)進(jin)出線方(fang)式(shi)(shi)分(fen)(fen)為(wei)：下進(jin)下出、下進(jin)線處；主斷(duan)路(lu)(lu)器(qi)安裝類(lei)(lei)別(bie)：豎裝；主斷(duan)路(lu)(lu)器(qi)額定電(dian)流(liu)(liu)等級：63A、100A、125A、140、160A、180A、200A、225A、250A；基(ji)準環境溫度(du)(du)分(fen)(fen)為(wei)40℃、50℃；防(fang)雷措施：防(fang)雷模塊。導致匯(hui)流(liu)(liu)箱(xiang)所采(cai)集的(de)電(dian)壓(ya)、電(dian)流(liu)(liu)、溫度(du)(du)及直流(liu)(liu)斷(duan)路(lu)(lu)器(qi)狀態等重要(yao)數(shu)據不能及時(shi)反饋到監控(kong)后臺(tai)。交流(liu)(liu)匯(hui)流(liu)(liu)箱(xiang)價位

常見直流匯(hui)流箱(xiang)有16條組(zu)串支路(lu)，每條支路(lu)正負極各經過一個熔(rong)斷器。太陽能匯(hui)流箱(xiang)新報價

交(jiao)流(liu)(liu)(liu)(liu)匯(hui)流(liu)(liu)(liu)(liu)箱(xiang)(xiang)在(zai)(zai)光伏發電(dian)(dian)(dian)(dian)系(xi)(xi)統(tong)中(zhong)是(shi)(shi)(shi)保(bao)證逆變器(qi)(qi)(qi)(qi)(qi)(qi)輸出(chu)電(dian)(dian)(dian)(dian)纜的(de)(de)(de)(de)有(you)序連接和(he)匯(hui)流(liu)(liu)(liu)(liu)功能(neng)的(de)(de)(de)(de)接線(xian)裝(zhuang)置(zhi)，在(zai)(zai)維護(hu)、檢查(cha)時易于(yu)切斷(duan)電(dian)(dian)(dian)(dian)路(lu)(lu)(lu)，故障時可(ke)以減(jian)小(xiao)停(ting)電(dian)(dian)(dian)(dian)的(de)(de)(de)(de)范圍。細心的(de)(de)(de)(de)朋友(you)會(hui)注意到在(zai)(zai)匯(hui)流(liu)(liu)(liu)(liu)箱(xiang)(xiang)內(nei)部(bu)(bu)，往往會(hui)放置(zhi)一個斷(duan)路(lu)(lu)(lu)器(qi)(qi)(qi)(qi)(qi)(qi)或熔斷(duan)器(qi)(qi)(qi)(qi)(qi)(qi)。這樣(yang)做的(de)(de)(de)(de)目的(de)(de)(de)(de)是(shi)(shi)(shi)什(shen)么(me)呢？如何選擇相應的(de)(de)(de)(de)斷(duan)路(lu)(lu)(lu)器(qi)(qi)(qi)(qi)(qi)(qi)或熔斷(duan)器(qi)(qi)(qi)(qi)(qi)(qi)呢？電(dian)(dian)(dian)(dian)涌(yong)保(bao)護(hu)器(qi)(qi)(qi)(qi)(qi)(qi)簡介電(dian)(dian)(dian)(dian)涌(yong)保(bao)護(hu)器(qi)(qi)(qi)(qi)(qi)(qi)，也(ye)叫防(fang)(fang)雷器(qi)(qi)(qi)(qi)(qi)(qi)，是(shi)(shi)(shi)一種用(yong)(yong)于(yu)帶電(dian)(dian)(dian)(dian)系(xi)(xi)統(tong)中(zhong)限制瞬(shun)態過(guo)電(dian)(dian)(dian)(dian)壓和(he)引導泄放電(dian)(dian)(dian)(dian)涌(yong)電(dian)(dian)(dian)(dian)流(liu)(liu)(liu)(liu)的(de)(de)(de)(de)非(fei)線(xian)性(xing)防(fang)(fang)護(hu)器(qi)(qi)(qi)(qi)(qi)(qi)件。光伏交(jiao)流(liu)(liu)(liu)(liu)匯(hui)流(liu)(liu)(liu)(liu)箱(xiang)(xiang)內(nei)部(bu)(bu)安裝(zhuang)SPD可(ke)以防(fang)(fang)止(zhi)系(xi)(xi)統(tong)因(yin)雷擊過(guo)電(dian)(dian)(dian)(dian)壓或操作過(guo)電(dian)(dian)(dian)(dian)壓對設備造成損壞(huai)。電(dian)(dian)(dian)(dian)涌(yong)保(bao)護(hu)器(qi)(qi)(qi)(qi)(qi)(qi)的(de)(de)(de)(de)前置(zhi)過(guo)電(dian)(dian)(dian)(dian)流(liu)(liu)(liu)(liu)保(bao)護(hu)器(qi)(qi)(qi)(qi)(qi)(qi)的(de)(de)(de)(de)作用(yong)(yong)SPD在(zai)(zai)使用(yong)(yong)過(guo)程(cheng)中(zhong)，內(nei)部(bu)(bu)性(xing)能(neng)有(you)可(ke)能(neng)退(tui)化或在(zai)(zai)壽命終止(zhi)后將失效。退(tui)化或失效后，可(ke)能(neng)呈現“器(qi)(qi)(qi)(qi)(qi)(qi)件開(kai)路(lu)(lu)(lu)”或“短(duan)路(lu)(lu)(lu)”兩種狀(zhuang)態，其中(zhong)若呈現短(duan)路(lu)(lu)(lu)狀(zhuang)態，會(hui)引發系(xi)(xi)統(tong)短(duan)路(lu)(lu)(lu)故障或接地(di)故障。因(yin)而，需要在(zai)(zai)防(fang)(fang)雷器(qi)(qi)(qi)(qi)(qi)(qi)前裝(zhuang)設過(guo)電(dian)(dian)(dian)(dian)流(liu)(liu)(liu)(liu)保(bao)護(hu)器(qi)(qi)(qi)(qi)(qi)(qi)做為(wei)回路(lu)(lu)(lu)中(zhong)的(de)(de)(de)(de)后備保(bao)護(hu)。常(chang)見的(de)(de)(de)(de)SPD前置(zhi)過(guo)電(dian)(dian)(dian)(dian)流(liu)(liu)(liu)(liu)保(bao)護(hu)器(qi)(qi)(qi)(qi)(qi)(qi)有(you)哪些種類呢?配電(dian)(dian)(dian)(dian)過(guo)流(liu)(liu)(liu)(liu)保(bao)護(hu)器(qi)(qi)(qi)(qi)(qi)(qi)常(chang)用(yong)(yong)的(de)(de)(de)(de)就是(shi)(shi)(shi)斷(duan)路(lu)(lu)(lu)器(qi)(qi)(qi)(qi)(qi)(qi)和(he)熔斷(duan)器(qi)(qi)(qi)(qi)(qi)(qi)，這兩種器(qi)(qi)(qi)(qi)(qi)(qi)件在(zai)(zai)實際項(xiang)目中(zhong)都有(you)使用(yong)(yong)。太陽能(neng)匯(hui)流(liu)(liu)(liu)(liu)箱(xiang)(xiang)新報(bao)價

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