鳳城(cheng)XJ01自耦減壓(ya)啟動(dong)柜報價(jia)相(xiang)當于給G極加上(shang)正(zheng)向觸(chu)發電(dian)(dian)壓(ya)，此時若電(dian)(dian)阻值為(wei)幾(ji)歐姆(mu)(mu)至(zhi)幾(ji)十歐姆(mu)(mu)(具(ju)體阻值根據晶閘管(guan)(guan)的(de)(de)(de)(de)(de)型(xing)號不(bu)(bu)同會有(you)所差異)，則表明(ming)(ming)晶閘管(guan)(guan)因正(zheng)向觸(chu)發而導通(tong)(tong)(tong)。再斷開A極與G極的(de)(de)(de)(de)(de)連接(A、K極上(shang)的(de)(de)(de)(de)(de)表筆不(bu)(bu)動(dong)，只將G極的(de)(de)(de)(de)(de)觸(chu)發電(dian)(dian)壓(ya)斷掉)。若表針(zhen)示值仍保持在(zai)幾(ji)歐姆(mu)(mu)至(zhi)幾(ji)十歐姆(mu)(mu)的(de)(de)(de)(de)(de)位(wei)置不(bu)(bu)動(dong)，則說(shuo)明(ming)(ming)此晶閘管(guan)(guan)的(de)(de)(de)(de)(de)觸(chu)發性(xing)能良好(hao)。選(xuan)用可(ke)控(kong)(kong)硅(gui)的(de)(de)(de)(de)(de)額定(ding)電(dian)(dian)壓(ya)時，應(ying)參(can)考實際工(gong)作(zuo)條(tiao)件下的(de)(de)(de)(de)(de)峰(feng)值電(dian)(dian)壓(ya)的(de)(de)(de)(de)(de)小，并留出一定(ding)的(de)(de)(de)(de)(de)余量。1.選(xuan)用可(ke)控(kong)(kong)硅(gui)的(de)(de)(de)(de)(de)額定(ding)電(dian)(dian)流時，除了考慮通(tong)(tong)(tong)過(guo)元件的(de)(de)(de)(de)(de)平均電(dian)(dian)流外(wai)，還(huan)應(ying)注意正(zheng)常工(gong)作(zuo)時導通(tong)(tong)(tong)角的(de)(de)(de)(de)(de)小、散熱(re)通(tong)(tong)(tong)風條(tiao)件等因素。在(zai)工(gong)作(zuo)中還(huan)應(ying)注意管(guan)(guan)殼溫度不(bu)(bu)超過(guo)相(xiang)應(ying)電(dian)(dian)流下的(de)(de)(de)(de)(de)允許值。2.使用可(ke)控(kong)(kong)硅(gui)之前，應(ying)該(gai)用萬用表檢查(cha)可(ke)控(kong)(kong)硅(gui)是否(fou)良好(hao)。發現有(you)短路或斷路現象時，應(ying)立即更換。具(ju)有(you)體積小，功耗(hao)低，高(gao)靈(ling)敏度、無觸(chu)點(dian)、安裝方便等特點(dian)。蘇(su)州(zhou)軟啟動(dong)柜公司

軟啟動柜

一(yi)些負(fu)載(zai)(zai)過度(du)(du)厚(hou)重，或是電(dian)力網容量(liang)很小(xiao)，啟(qi)(qi)(qi)動(dong)(dong)(dong)，電(dian)機(ji)(ji)開機(ji)(ji)時間(jian)太長，使軟(ruan)啟(qi)(qi)(qi)動(dong)(dong)(dong)器(qi)負(fu)載(zai)(zai)跳電(dian)，則在(zai)電(dian)動(dong)(dong)(dong)機(ji)(ji)不在(zai)毀壞的(de)(de)前提條件(jian)下，可(ke)(ke)適度(du)(du)變(bian)軟(ruan)啟(qi)(qi)(qi)動(dong)(dong)(dong)器(qi)的(de)(de)容量(liang)。對(dui)加(jia)快(kuai)時間(jian)有(you)(you)特別要(yao)求的(de)(de)負(fu)載(zai)(zai)，電(dian)動(dong)(dong)(dong)機(ji)(ji)加(jia)快(kuai)時間(jian)的(de)(de)長度(du)(du)是一(yi)個(ge)與慣性力尺寸的(de)(de)相對(dui)性定義。一(yi)些負(fu)載(zai)(zai)規定較(jiao)短(duan)加(jia)快(kuai)時間(jian)，電(dian)動(dong)(dong)(dong)機(ji)(ji)的(de)(de)加(jia)快(kuai)電(dian)流量(liang)將較(jiao)為，這時候(hou)能(neng)(neng)(neng)夠(gou)適度(du)(du)變(bian)軟(ruan)啟(qi)(qi)(qi)動(dong)(dong)(dong)器(qi)的(de)(de)容量(liang)。銜接(jie)全過程有(you)(you)很沖(chong)擊性電(dian)流量(liang)的(de)(de)負(fu)載(zai)(zai)，很有(you)(you)可(ke)(ke)能(neng)(neng)(neng)造(zao)成過電(dian)流量(liang)維護姿勢，能(neng)(neng)(neng)夠(gou)適度(du)(du)變(bian)軟(ruan)啟(qi)(qi)(qi)動(dong)(dong)(dong)器(qi)的(de)(de)容量(liang)。電(dian)機(ji)(ji)選用立(li)即啟(qi)(qi)(qi)動(dong)(dong)(dong)，啟(qi)(qi)(qi)動(dong)(dong)(dong)電(dian)流量(liang)是電(dian)機(ji)(ji)載(zai)(zai)滿工(gong)作(zuo)中電(dian)流量(liang)的(de)(de)7倍，會導致母線(xian)槽上造(zao)成過的(de)(de)路線(xian)損耗，使聯接(jie)該(gai)電(dian)動(dong)(dong)(dong)機(ji)(ji)的(de)(de)供(gong)電(dian)系(xi)統(tong)(tong)和母線(xian)槽系(xi)統(tong)(tong)軟(ruan)件(jian)造(zao)成迅速、短(duan)暫性的(de)(de)工(gong)作(zuo)電(dian)壓起伏，危害(hai)到系(xi)統(tong)(tong)軟(ruan)件(jian)中的(de)(de)別的(de)(de)用電(dian)量(liang)機(ji)(ji)器(qi)設備的(de)(de)一(yi)切正常工(gong)作(zuo)中。因此(ci)挑(tiao)選電(dian)機(ji)(ji)軟(ruan)起動(dong)(dong)(dong)柜做(zuo)為電(dian)機(ji)(ji)啟(qi)(qi)(qi)動(dong)(dong)(dong)控制(zhi)系(xi)統(tong)(tong)。內江軟(ruan)啟(qi)(qi)(qi)動(dong)(dong)(dong)柜這個(ge)隔離(li)開關具有(you)(you)負(fu)載(zai)(zai)短(duan)路時起動(dong)(dong)(dong)和帶負(fu)載(zai)(zai)停機(ji)(ji)的(de)(de)過載(zai)(zai)能(neng)(neng)(neng)力。

采用星(xing)三(san)角(jiao)(jiao)(jiao)起(qi)(qi)(qi)(qi)(qi)動(dong)(dong)(dong)(dong)(dong)時(shi)(shi)(shi)(shi)，起(qi)(qi)(qi)(qi)(qi)動(dong)(dong)(dong)(dong)(dong)電流只是原(yuan)來按(an)三(san)角(jiao)(jiao)(jiao)形(xing)接法直(zhi)接起(qi)(qi)(qi)(qi)(qi)動(dong)(dong)(dong)(dong)(dong)時(shi)(shi)(shi)(shi)的(de)1/3。如(ru)果(guo)直(zhi)接起(qi)(qi)(qi)(qi)(qi)動(dong)(dong)(dong)(dong)(dong)時(shi)(shi)(shi)(shi)的(de)起(qi)(qi)(qi)(qi)(qi)動(dong)(dong)(dong)(dong)(dong)電流以(yi)6—7Ie計(ji)，則(ze)在(zai)星(xing)三(san)角(jiao)(jiao)(jiao)起(qi)(qi)(qi)(qi)(qi)動(dong)(dong)(dong)(dong)(dong)時(shi)(shi)(shi)(shi)，起(qi)(qi)(qi)(qi)(qi)動(dong)(dong)(dong)(dong)(dong)電流才2—2.3倍。這(zhe)就是說(shuo)采用星(xing)三(san)角(jiao)(jiao)(jiao)起(qi)(qi)(qi)(qi)(qi)動(dong)(dong)(dong)(dong)(dong)時(shi)(shi)(shi)(shi)，起(qi)(qi)(qi)(qi)(qi)動(dong)(dong)(dong)(dong)(dong)轉矩也降為原(yuan)來按(an)三(san)角(jiao)(jiao)(jiao)形(xing)接法直(zhi)接起(qi)(qi)(qi)(qi)(qi)動(dong)(dong)(dong)(dong)(dong)時(shi)(shi)(shi)(shi)的(de)1/3。適用于無載(zai)(zai)(zai)或(huo)者輕載(zai)(zai)(zai)起(qi)(qi)(qi)(qi)(qi)動(dong)(dong)(dong)(dong)(dong)的(de)場合。并(bing)且同(tong)任何別的(de)減壓(ya)起(qi)(qi)(qi)(qi)(qi)動(dong)(dong)(dong)(dong)(dong)器相(xiang)比較，由(you)于其結(jie)構簡(jian)單，價格(ge)也。星(xing)三(san)角(jiao)(jiao)(jiao)起(qi)(qi)(qi)(qi)(qi)動(dong)(dong)(dong)(dong)(dong)方式還有一個優點，即當負載(zai)(zai)(zai)較輕時(shi)(shi)(shi)(shi)，可以(yi)讓電動(dong)(dong)(dong)(dong)(dong)機(ji)在(zai)星(xing)形(xing)接法下運(yun)行。此時(shi)(shi)(shi)(shi)，額定轉矩與負載(zai)(zai)(zai)可以(yi)匹配(pei)，這(zhe)樣能使(shi)電動(dong)(dong)(dong)(dong)(dong)機(ji)的(de)效率有所(suo)提(ti)高，并(bing)因之節(jie)約了電力(li)消耗。

變(bian)(bian)頻(pin)柜(ju)可(ke)以(yi)降低電力線路電壓(ya)波(bo)動：在電機(ji)工頻(pin)啟動時，電流(liu)(liu)劇增的(de)(de)(de)同(tong)時電壓(ya)也會(hui)幅度波(bo)動。電壓(ya)下降的(de)(de)(de)幅度將取(qu)決于啟動電機(ji)的(de)(de)(de)功率小(xiao)和(he)配電網(wang)的(de)(de)(de)容量。電壓(ya)下降將會(hui)導(dao)致(zhi)同(tong)一(yi)(yi)供電網(wang)絡中的(de)(de)(de)電壓(ya)敏(min)感(gan)設(she)備故障(zhang)跳閘或工作(zuo)異樣。,軟(ruan)啟動柜(ju),如接(jie)觸(chu)電機(ji)的(de)(de)(de)額定電壓(ya)d,變(bian)(bian)頻(pin)柜(ju)體上可(ke)分(fen)為(wei)兩類：高壓(ya)變(bian)(bian)頻(pin)柜(ju)和(he)低壓(ya)變(bian)(bian)頻(pin)柜(ju)。器均會(hui)動作(zuo)出錯。而采用(yong)變(bian)(bian)頻(pin)調試由于能(neng)在零(ling)頻(pin)零(ling)壓(ya)時逐步啟動則能(neng)消除電壓(ya)下降。交(jiao)-直(zhi)-交(jiao)變(bian)(bian)頻(pin)器，是(shi)(shi)先把交(jiao)流(liu)(liu)電變(bian)(bian)成(cheng)直(zhi)流(liu)(liu)，然再通過IGBT斬波(bo)的(de)(de)(de)方(fang)式逆變(bian)(bian)成(cheng)交(jiao)流(liu)(liu)，斬波(bo)時候處理(li)輸入的(de)(de)(de)直(zhi)流(liu)(liu)電比較容易了，因為(wei)它是(shi)(shi)直(zhi)線的(de)(de)(de)，從(cong)微積(ji)分(fen)的(de)(de)(de)道理(li)來(lai)看，只(zhi)要分(fen)成(cheng)夠小(xiao)的(de)(de)(de)很多方(fang)塊(kuai)，累(lei)積(ji)起來(lai)作(zuo)用(yong)效果和(he)正弦波(bo)是(shi)(shi)一(yi)(yi)樣的(de)(de)(de)，而IGBT這些(xie)器件，本身只(zhi)能(neng)開和(he)關，所(suo)以(yi)處,PLC控制柜(ju),理(li)方(fang)塊(kuai)的(de)(de)(de)信(xin)號比較適(shi)合了。多種(zhong)起動模式及寬范圍的(de)(de)(de)電流(liu)(liu)、電壓(ya)設(she)定，可(ke)適(shi)應多種(zhong)負載場合，改善(shan)工藝。

變(bian)(bian)(bian)(bian)(bian)(bian)頻(pin)(pin)柜(ju)(ju)(ju)的(de)(de)(de)種類(lei)繁多，按(an)照(zhao)變(bian)(bian)(bian)(bian)(bian)(bian)頻(pin)(pin)器(qi)的(de)(de)(de)用(yong)途(tu)不同可(ke)以(yi)分為通用(yong)變(bian)(bian)(bian)(bian)(bian)(bian)頻(pin)(pin)器(qi)、高(gao)性(xing)能變(bian)(bian)(bian)(bian)(bian)(bian)頻(pin)(pin)柜(ju)(ju)(ju)、高(gao)頻(pin)(pin)變(bian)(bian)(bian)(bian)(bian)(bian)頻(pin)(pin)柜(ju)(ju)(ju)、單相變(bian)(bian)(bian)(bian)(bian)(bian)頻(pin)(pin)柜(ju)(ju)(ju)和(he)三相變(bian)(bian)(bian)(bian)(bian)(bian)頻(pin)(pin)柜(ju)(ju)(ju)等(deng)；按(an)照(zhao)變(bian)(bian)(bian)(bian)(bian)(bian)頻(pin)(pin)柜(ju)(ju)(ju)工(gong)作(zuo)原理(li)分類(lei)可(ke)分為V/f控(kong)制變(bian)(bian)(bian)(bian)(bian)(bian)頻(pin)(pin)器(qi)、轉(zhuan)差頻(pin)(pin)率(lv)控(kong)制變(bian)(bian)(bian)(bian)(bian)(bian)頻(pin)(pin)器(qi)和(he)矢量(liang)控(kong)制變(bian)(bian)(bian)(bian)(bian)(bian)頻(pin)(pin)器(qi)等(deng)。變(bian)(bian)(bian)(bian)(bian)(bian)頻(pin)(pin)柜(ju)(ju)(ju)可(ke)以(yi)控(kong)制電(dian)(dian)機(ji)的(de)(de)(de)啟(qi)動(dong)電(dian)(dian)流(liu)(liu)：當(dang)電(dian)(dian)機(ji)通過工(gong)頻(pin)(pin)直接啟(qi)動(dong)時，它將會產生(sheng)(sheng)7--8倍的(de)(de)(de)電(dian)(dian)機(ji)額定電(dian)(dian)流(liu)(liu)。這個電(dian)(dian)流(liu)(liu)值將增加點擊繞組的(de)(de)(de)電(dian)(dian)應力并產生(sheng)(sheng)熱量(liang)。從(cong)而(er)降(jiang)低電(dian)(dian)機(ji)的(de)(de)(de)壽命而(er)變(bian)(bian)(bian)(bian)(bian)(bian)頻(pin)(pin)調速(su)則可(ke)以(yi)在零速(su)零電(dian)(dian)壓(ya)啟(qi)動(dong)。一(yi)單頻(pin)(pin)率(lv)和(he)電(dian)(dian)壓(ya)關系建立，變(bian)(bian)(bian)(bian)(bian)(bian)頻(pin)(pin)器(qi)就可(ke)以(yi)按(an)照(zhao)V/F或矢量(liang)控(kong)制方式帶動(dong)負載工(gong)作(zuo)。使用(yong)變(bian)(bian)(bian)(bian)(bian)(bian)頻(pin)(pin)調速(su)能充分降(jiang)低啟(qi)動(dong)電(dian)(dian)流(liu)(liu)，提(ti)高(gao)繞組承受(shou)力。用(yong)戶(hu)直接的(de)(de)(de)好處就是(shi)電(dian)(dian)機(ji),高(gao)壓(ya)變(bian)(bian)(bian)(bian)(bian)(bian)頻(pin)(pin)器(qi),的(de)(de)(de)維護成(cheng)本將進一(yi)步(bu)降(jiang)低，電(dian)(dian)機(ji)的(de)(de)(de)壽命則相應增加。獨(du)特的(de)(de)(de)故障檢測回(hui)報(bao)和(he)判斷(duan)系統(tong)，能夠(gou)迅速(su)將檢測結果傳遞到控(kong)制電(dian)(dian)路，聲光報(bao)警(jing)。聊城軟啟(qi)動(dong)柜(ju)(ju)(ju)廠家

與其它傳(chuan)統的起動方法相比較，其特有(you)的智能控制方式。蘇州軟啟動柜公司

二次繞組(zu)采(cai)用延(yan)邊三角形接(jie)法(fa)，實現多重化，以達到降(jiang)低輸入諧(xie)(xie)波(bo)電(dian)(dian)流的(de)目的(de)。6kV電(dian)(dian)壓(ya)等級的(de)變頻(pin)器，給18個功率(lv)單元供電(dian)(dian)的(de)18個二次繞組(zu)每三個一組(zu)，分為(wei)6個不(bu)(bu)同(tong)的(de)相位(wei)組(zu)，互(hu)差(cha)10度(du)電(dian)(dian)角度(du)，形成(cheng)36脈沖的(de)整流電(dian)(dian)路結構，輸入電(dian)(dian)流波(bo)形接(jie)近正弦(xian)波(bo)，這種等值裂相供電(dian)(dian)方式(shi)使總的(de)諧(xie)(xie)波(bo)電(dian)(dian)流失(shi)真為(wei)減(jian)少(shao)，變頻(pin)器輸入的(de)功率(lv)因數可達到0.95以上。不(bu)(bu)需要附加電(dian)(dian)源濾波(bo)器或功率(lv)因數補償裝置，也不(bu)(bu)會與現有的(de)補償電(dian)(dian)容裝置發生諧(xie)(xie)振，對(dui)同(tong)一電(dian)(dian)網上運行(xing)的(de)電(dian)(dian)氣設備沒(mei)有任何干擾。蘇州軟(ruan)啟(qi)動柜(ju)公(gong)司

湖(hu)北九月電(dian)(dian)(dian)(dian)氣(qi)有限公(gong)(gong)司在(zai)固態(tai)軟起動(dong)(dong)柜(ju)，電(dian)(dian)(dian)(dian)容補(bu)償柜(ju)，籠(long)型(xing)水(shui)阻(zu)柜(ju)，繞線水(shui)阻(zu)柜(ju)一直(zhi)在(zai)同(tong)行業中(zhong)處于(yu)較強地位(wei)，無論是產(chan)(chan)品(pin)還是服務(wu)(wu)，其(qi)高(gao)水(shui)平的能力始(shi)終貫(guan)穿于(yu)其(qi)中(zhong)。公(gong)(gong)司位(wei)于(yu)人(ren)民路柿(shi)鋪街4號正英工(gong)(gong)(gong)業園，成立于(yu)2009-05-14，迄(qi)今已經(jing)(jing)成長為電(dian)(dian)(dian)(dian)工(gong)(gong)(gong)電(dian)(dian)(dian)(dian)氣(qi)行業內(nei)同(tong)類型(xing)企(qi)業的佼(jiao)佼(jiao)者。公(gong)(gong)司主(zhu)要(yao)提(ti)供電(dian)(dian)(dian)(dian)動(dong)(dong)機起動(dong)(dong)控(kong)制(zhi)設(she)(she)備(bei)、熱工(gong)(gong)(gong)自(zi)動(dong)(dong)控(kong)制(zhi)系統及(ji)電(dian)(dian)(dian)(dian)氣(qi)設(she)(she)備(bei)的生產(chan)(chan)、銷(xiao)售；電(dian)(dian)(dian)(dian)工(gong)(gong)(gong)電(dian)(dian)(dian)(dian)料(liao)(liao)、低壓電(dian)(dian)(dian)(dian)氣(qi)、電(dian)(dian)(dian)(dian)線電(dian)(dian)(dian)(dian)纜(lan)、儀器(qi)儀表、建筑材料(liao)(liao)、五金工(gong)(gong)(gong)具、普通機械設(she)(she)備(bei)及(ji)其(qi)零部(bu)件(jian)的銷(xiao)售；自(zi)動(dong)(dong)化電(dian)(dian)(dian)(dian)子、電(dian)(dian)(dian)(dian)力、電(dian)(dian)(dian)(dian)氣(qi)、熱工(gong)(gong)(gong)控(kong)制(zhi)專(zhuan)項技(ji)(ji)(ji)術服務(wu)(wu)；貨物及(ji)技(ji)(ji)(ji)術進(jin)出(chu)口（不含國(guo)家(jia)禁止或(huo)限制(zhi)進(jin)出(chu)口的貨物或(huo)技(ji)(ji)(ji)術）等(deng)領域(yu)內(nei)的業務(wu)(wu)，產(chan)(chan)品(pin)滿意(yi)，服務(wu)(wu)可(ke)高(gao)，能夠滿足(zu)多方位(wei)人(ren)群或(huo)公(gong)(gong)司的需要(yao)。多年來，已經(jing)(jing)為我國(guo)電(dian)(dian)(dian)(dian)工(gong)(gong)(gong)電(dian)(dian)(dian)(dian)氣(qi)行業生產(chan)(chan)、經(jing)(jing)濟(ji)等(deng)的發(fa)展(zhan)做(zuo)出(chu)了重要(yao)貢獻。

本文來自東莞(guan)市宇馳新(xin)能源汽車貿易有限(xian)公司：//kql33.cn/Article/50f399946.html