為了解決光(guang)伏(fu)系(xi)統升(sheng)壓變壓器的(de)空(kong)(kong)載損耗問題，開發出了光(guang)伏(fu)系(xi)統專(zhuan)用(yong)智(zhi)能節電(dian)(dian)安(an)全柜產品，節電(dian)(dian)柜利用(yong)高壓分/合(he)(he)閘電(dian)(dian)阻(zu)來(lai)實(shi)現對操(cao)(cao)作過電(dian)(dian)壓和勵磁涌(yong)流的(de)抑制，并配(pei)合(he)(he)高壓避(bi)雷器進(jin)行(xing)保(bao)護(hu)，以保(bao)證設(she)備可(ke)根(gen)據需(xu)要安(an)全地進(jin)行(xing)切(qie)合(he)(he)操(cao)(cao)作，夜間將升(sheng)壓變壓器退出主(zhu)電(dian)(dian)網避(bi)免空(kong)(kong)載損耗，達到節能目(mu)的(de)。

光伏智能節電(dian)(dian)(dian)(dian)(dian)安(an)(an)全柜位于升(sheng)壓變壓器(qi)(qi)(qi)(qi)輸出端與(yu)電(dian)(dian)(dian)(dian)(dian)網之間，控制裝置檢測系(xi)統電(dian)(dian)(dian)(dian)(dian)壓、電(dian)(dian)(dian)(dian)(dian)流及接(jie)(jie)(jie)觸(chu)(chu)器(qi)(qi)(qi)(qi)狀態信(xin)號(hao)。啟動光伏并網發電(dian)(dian)(dian)(dian)(dian)時，裝置先(xian)檢測主接(jie)(jie)(jie)觸(chu)(chu)器(qi)(qi)(qi)(qi)Jz1，確保主接(jie)(jie)(jie)觸(chu)(chu)器(qi)(qi)(qi)(qi)Jz1為分閘狀態，閉(bi)合輔(fu)接(jie)(jie)(jie)觸(chu)(chu)器(qi)(qi)(qi)(qi)Jz2，此(ci)時由于串接(jie)(jie)(jie)在輔(fu)接(jie)(jie)(jie)觸(chu)(chu)器(qi)(qi)(qi)(qi)Jz2上的大功率電(dian)(dian)(dian)(dian)(dian)阻(zu)R的作用，抑制投入(ru)空載升(sheng)壓變壓器(qi)(qi)(qi)(qi)時的操作過電(dian)(dian)(dian)(dian)(dian)壓和勵磁涌流，然后安(an)(an)全閉(bi)合主接(jie)(jie)(jie)觸(chu)(chu)器(qi)(qi)(qi)(qi)Jz1，再分斷輔(fu)接(jie)(jie)(jie)觸(chu)(chu)器(qi)(qi)(qi)(qi)Jz2，完(wan)成系(xi)統的軟啟動操作。

夜(ye)間光伏系統停止發電(dian)(dian)，升(sheng)壓變壓器脫離主(zhu)電(dian)(dian)網，此時先閉合輔(fu)接(jie)(jie)觸器Jz2，使主(zhu)接(jie)(jie)觸器Jz1上并入與輔(fu)接(jie)(jie)觸器Jz2串聯的大功率高壓電(dian)(dian)阻后(hou)，再(zai)安全分開主(zhu)接(jie)(jie)觸器Jz1，然(ran)后(hou)分輔(fu)接(jie)(jie)觸器Jz2，由于電(dian)(dian)阻的作(zuo)(zuo)用(yong)，抑制了勵磁涌(yong)流和(he)操作(zuo)(zuo)過電(dian)(dian)壓，完成系統的軟停止操作(zuo)(zuo)。

產品(pin)特(te)點(dian)：

1、按(an)照用戶(hu)設定的(de)(de)時(shi)間安全完成自動啟動與停(ting)止，并(bing)記錄系統分/合閘狀(zhuang)態累計時(shi)長；光(guang)強(qiang)傳感器及三相(xiang)電(dian)(dian)壓電(dian)(dian)流狀(zhuang)態作為輔助(zhu)判據，同(tong)時(shi)增設了GPS校時(shi)功(gong)能，以保證分/合閘的(de)(de)準(zhun)確性；

2、由于分(fen)/合閘電阻的作用，可有(you)效抑(yi)制(zhi)分(fen)/合閘時(shi)的操(cao)作過電壓及勵磁涌流，保證系統可安全可靠地進(jin)行頻繁分(fen)/合閘操(cao)作；

3、控(kong)(kong)制(zhi)(zhi)器采用先進的(de)(de)微處理器核心，抗(kang)干擾能(neng)力(li)強(qiang)，控(kong)(kong)制(zhi)(zhi)大功(gong)率(lv)接觸器，實現光伏(fu)系(xi)統的(de)(de)軟啟動控(kong)(kong)制(zhi)(zhi)功(gong)能(neng)。控(kong)(kong)制(zhi)(zhi)器具有(you)32個事件順(shun)序記錄且掉電不丟失功(gong)能(neng)。并自帶標準的(de)(de)RS485接口，可以實現各種狀態(tai)的(de)(de)遠程監控(kong)(kong)；

4、具有就地應急操作功能；

5、低功(gong)耗控(kong)制系統。<6W,動作瞬(shun)間(jian)功(gong)率<10W。

具體選型和參數詳見光伏專用智能節電安全柜手冊《鏈接PDF說明書》