產(chǎn)品詳情
SCONINC變換器SCONI-ACC-B74Y,出售大秦 DS-B2DAEYEON轉(zhuǎn)換器;DY-LSC-51AOY DY-LSC-52AOY DY-LSC-53AOY DY-LSC-54AOY DY-LSC-55AOY DY-LSC-56AOY
DAEYEON轉(zhuǎn)換器;DY-LSC-5AAOY DY-LSC-5BAOY DY-LSC-5CAOY DY-LSC-5DAOY DY-LSC-5OAOY
DAEYEON轉(zhuǎn)換器;DY-LSC-61AOY DY-LSC-62AOY DY-LSC-63AOY DY-LSC-64AOY DY-LSC-65AOY DY-LSC-66AOY
DAEYEON轉(zhuǎn)換器;DY-LSC-6AAOY DY-LSC-6BAOY DY-LSC-6CAOY DY-LSC-6DAOY DY-LSC-6OAOY
DAEYEON轉(zhuǎn)換器;DY-LSC-A1AOY DY-LSC-A2AOY DY-LSC-A3AOY DY-LSC-A4AOY DY-LSC-A5AOY DY-LSC-A6AOY
DAEYEON轉(zhuǎn)換器;DY-LSC-AAAOY DY-LSC-ABAOY DY-LSC-ACAOY DY-LSC-ADAOY DY-LSC-AOAOY
DAEYEON轉(zhuǎn)換器;DY-LSC-B1AOY DY-LSC-B2AOY DY-LSC-B3AOY DY-LSC-B4AOY DY-LSC-B5AOY DY-LSC-B6AOY
DAEYEON轉(zhuǎn)換器;DY-LSC-BAAOY DY-LSC-BBAOY DY-LSC-BCAOY DY-LSC-BDAOY DY-LSC-BOAOY
DAEYEON轉(zhuǎn)換器;DY-LSC-C1AOY DY-LSC-C2AOY DY-LSC-C3AOY DY-LSC-AOY DY-LSC-C5AOY DY-LSC-C6AOY
DAEYEON轉(zhuǎn)換器;DY-LSC-CAAOY DY-LSC-CBAOY DY-LSC-CCAOY DY-LSC-CDAOY DY-LSC-COAOY
DAEYEON轉(zhuǎn)換器;DY-LSC-D1AOY DY-LSC-D2AOY DY-LSC-D3AOY DY-LSC-D4AOY DY-LSC-D5AOY DY-LSC-D6AOY
ASFLOW公司以半導(dǎo)體工序用高純管道配件的專業(yè)性為基礎(chǔ), 開啟了高純閥門及過濾器事業(yè), 2018年銷售額達(dá)到了567億韓元(出口150億韓元), 近5年平均銷售額增長率為32.7%,正實現(xiàn)迅速增長。智能軟啟動器利用三對晶閘管的電子開關(guān)特性,通過啟動器中的微處理器,控制其觸發(fā)脈沖的遲早來改變觸發(fā)角的大小,而晶閘管觸發(fā)角的大小,又可改變晶閘管的導(dǎo)通時間,從而終改變加到定子繞組的三相電壓的大小。異步電動機(jī)定子調(diào)壓的特點是,電動機(jī)轉(zhuǎn)矩近似與定子電壓的二次方成正比,電動機(jī)的電流和定子電壓成正比,因此,電動機(jī)的啟動轉(zhuǎn)矩和初始電流的可以通過定子電壓的控制來實現(xiàn)。而電動機(jī)定子電壓又是通過晶閘管的導(dǎo)通角來控制的,所以不同的初始相角可實現(xiàn)不同的端電壓,以不同的負(fù)載啟動特性。在電動機(jī)啟動中,晶閘管的導(dǎo)通角逐漸增大,晶閘管的輸出電壓也逐漸,電動機(jī)從零開始加速,直到晶閘管全導(dǎo)通,啟動完成,從而實現(xiàn)電動機(jī)的無級啟動。
又稱為SoftStarter。它不僅實現(xiàn)在整個起動中無沖擊而的起動電機(jī),而且可根據(jù)電動機(jī)負(fù)載的特性來調(diào)節(jié)起動中的參數(shù),如限流值、起動時間等。此外,它還具有多種對電機(jī)保護(hù)功能,這就從根本上解決了的降壓起動設(shè)備的諸多弊端。發(fā)展趨勢編輯隨著國產(chǎn)變頻器產(chǎn)業(yè)的迅速發(fā)展,變頻器的價格不再高高在上,它不僅解決了電機(jī)啟動產(chǎn)生大沖擊電流的問題,并且具有很好的節(jié)能效果,因此,曾經(jīng)風(fēng)光一時的軟啟動器似乎有些沒落,聲音越來越小。但是軟啟動器面臨的替代壓力確實越來越大,[1]這種情況在尤為明顯。由于工業(yè)技術(shù)一直較為落后,在十多年前,的變頻器產(chǎn)業(yè)剛剛起步,沒有定價權(quán),國內(nèi)市場大部分為品牌占據(jù),變頻器的成本一直居高不下。
DAEYEON轉(zhuǎn)換器;DY-LSC-DAAOY DY-LSC-DBAOY DY-LSC-DCAOY DY-LSC-DDAOY DY-LSC-DOAOY
DAEYEON轉(zhuǎn)換器;DY-LSC-O1AOY DY-LSC-O2AOY DY-LSC-O3AOY DY-LSC-O4AOY DY-LSC-O5AOY DY-LSC-O6AOY
DAEYEON轉(zhuǎn)換器;DY-LSC-OAAOY DY-LSC-OBAOY DY-LSC-OCAOY DY-LSC-ODAOY DY-LSC-OOAOY
DAEYEON轉(zhuǎn)換器;DY-LSC-11ANY DY-LSC-12ANY DY-LSC-13ANY DY-LSC-14ANY DY-LSC-15ANY DY-LSC-16ANY
DAEYEON轉(zhuǎn)換器;DY-LSC-1AANY DY-LSC-1BANY DY-LSC-1CANY DY-LSC-1DANY DY-LSC-1OANY
DAEYEON轉(zhuǎn)換器;DY-LSC-21ANY DY-LSC-22ANY DY-LSC-23ANY DY-LSC-24ANY DY-LSC-25ANY DY-LSC-26ANY
DAEYEON轉(zhuǎn)換器;DY-LSC-2AANY DY-LSC-2BANY DY-LSC-2CANY DY-LSC-2DANY DY-LSC-2OANY
DAEYEON轉(zhuǎn)換器;DY-LSC-31ANY DY-LSC-32ANY DY-LSC-33ANY DY-LSC-34ANY DY-LSC-35ANY DY-LSC-36ANY
DAEYEON轉(zhuǎn)換器;DY-LSC-3AANY DY-LSC-3BANY DY-LSC-3CANY DY-LSC-3DANY DY-LSC-3OANY
對于低電壓繼電器,當(dāng)電壓到整定電壓時,繼電器就,動合觸點斷開,動斷觸點閉合。2.技術(shù)要求1.繼電器額定電壓、整定范圍、功率消耗、返回系數(shù)。2.值極限誤差:在基準(zhǔn)條件下,繼電器各整定值極限誤差不超過±6%。3.值一致性:在基準(zhǔn)條件下,繼電器值的一致性不超過6%整定值。4.溫度變化引起的變差:在標(biāo)稱極限溫度下,電壓的變差不超過±5%整定值。5.時間:在1.1倍實測值時,過電壓繼電器的時間不大于0.12s(對DY-32~34/60C不大于0.15s);在2倍實測值時,時間不大于0.04s(對DY-32~34/60C不大于0.06s);低電壓繼電器在0.5倍實測值時。對于小型電器,如玩具、遙控裝置則應(yīng)選用超小型繼電器產(chǎn)品。反時限編輯反時限過流繼電器是具有反時限特性,用于發(fā)電機(jī)、變壓器及輸配電的繼電器保護(hù)裝置中。在設(shè)備過負(fù)荷或短路時,能按預(yù)定的時限可靠,發(fā)出或切除故障部分。該繼電器為集成電路靜態(tài)型繼電器,采用數(shù)碼開關(guān)整定電流值,直觀方便,改變整定值無須檢驗,整定范圍為2-9.9差為0.1A;精度高、功耗小、時間快、返回系數(shù)高。正常編輯編輯使用不出現(xiàn)超過GB/T14537規(guī)定的嚴(yán)酷等級為1級的振動。周圍:不允許有陽光直射、雨和水的沖洗,無危險的介質(zhì),不應(yīng)含有能腐蝕金屬、絕緣和表面涂覆層的介質(zhì)及導(dǎo)電介質(zhì),不允許有明顯的水氣。
應(yīng)及時進(jìn)行檢查。排污編輯壓差排污:當(dāng)雜質(zhì)聚積到一定數(shù)量時,利用冷卻水進(jìn)管之間差壓來反沖洗排污,即電接點壓力表接通控制,控制機(jī)構(gòu)打開電動排污閥,電動減速機(jī)將以每分鐘3-6轉(zhuǎn)的轉(zhuǎn)速運轉(zhuǎn),經(jīng)由排污管路和排污閥門冷卻水管中,清排一次約5-10分鐘左右。當(dāng)出現(xiàn)大的雜物,濾網(wǎng)不能運行到位時,電動裝置應(yīng)作反方向運行,沖洗雜物。用戶如需要可設(shè)置排污時間性,在0-99小時內(nèi)設(shè)定清洗排污時間,一般設(shè)置為12個小時排污一次,時間設(shè)定可以按照電廠水質(zhì)的情況而做相應(yīng)。即設(shè)定時間啟動電動減速機(jī)進(jìn)行反轉(zhuǎn)使排污閥打開,依次進(jìn)行反轉(zhuǎn)反沖洗排污。直至全部腔室反沖完畢,電動裝置停止工作,電動反沖閥和電動排污閥關(guān)閉。
DAEYEON轉(zhuǎn)換器;DY-LSC-41ANY DY-LSC-42ANY DY-LSC-43ANY DY-LSC-44ANY DY-LSC-45ANY DY-LSC-46ANY
DAEYEON轉(zhuǎn)換器;DY-LSC-4AANY DY-LSC-4BANY DY-LSC-4CANY DY-LSC-4DANY DY-LSC-4OANY
DAEYEON轉(zhuǎn)換器;DY-LSC-51ANY DY-LSC-52ANY DY-LSC-53ANY DY-LSC-54ANY DY-LSC-55ANY DY-LSC-56ANY
DAEYEON轉(zhuǎn)換器;DY-LSC-5AANY DY-LSC-5BANY DY-LSC-5CANY DY-LSC-5DANY DY-LSC-5OANY
DAEYEON轉(zhuǎn)換器;DY-LSC-61ANY DY-LSC-62ANY DY-LSC-63ANY DY-LSC-64ANY DY-LSC-65ANY DY-LSC-66ANY
DAEYEON轉(zhuǎn)換器;DY-LSC-6AANY DY-LSC-6BANY DY-LSC-6CANY DY-LSC-6DANY DY-LSC-6OANY
DAEYEON轉(zhuǎn)換器;DY-LSC-A1ANY DY-LSC-A2ANY DY-LSC-A3ANY DY-LSC-A4ANY DY-LSC-A5ANY DY-LSC-A6ANY
DAEYEON轉(zhuǎn)換器;DY-LSC-AAANY DY-LSC-ABANY DY-LSC-ACANY DY-LSC-ADANY DY-LSC-AOANY
DAEYEON轉(zhuǎn)換器;DY-LSC-B1ANY DY-LSC-B2ANY DY-LSC-B3ANY DY-LSC-B4ANY DY-LSC-B5ANY DY-LSC-B6ANY
DAEYEON轉(zhuǎn)換器;DY-LSC-BAANY DY-LSC-BBANY DY-LSC-BCANY DY-LSC-BDANY DY-LSC-BOANY
DAEYEON轉(zhuǎn)換器;DY-LSC-C1ANY DY-LSC-C2ANY DY-LSC-C3ANY DY-LSC-ANY DY-LSC-C5ANY DY-LSC-C6ANY
DAEYEON轉(zhuǎn)換器;DY-LSC-CAANY DY-LSC-CBANY DY-LSC-CCANY DY-LSC-CDANY DY-LSC-COANY
當(dāng)時,國內(nèi)鼠籠型異步電動機(jī)一般采用直接啟動,或用自耦、星三角啟動器啟動。上世紀(jì)九十年代,以單片機(jī)為核心、半導(dǎo)體可控硅為執(zhí)行元件的智能化電機(jī)軟啟動器進(jìn)入市場,并在2000年以后開始加速發(fā)展,目前市場規(guī)模約為20億。軟啟動器主要解決電動機(jī)啟動時對電網(wǎng)的沖擊和啟動后旁路器工作的問題,對電機(jī)有的保護(hù)作用,在輕載情況下可以實現(xiàn)一定程度的節(jié)能(約5%),但是節(jié)能效果遠(yuǎn)遠(yuǎn)不如變頻器。隨著變頻器產(chǎn)業(yè)的崛起,并因此使變頻器的價格大幅下降,近幾年來,變頻器才又逐漸取代了軟啟動器的作用。變頻器的國產(chǎn)化正在快速崛起,性進(jìn)步很快,加上服務(wù)和成本上的優(yōu)勢,變頻調(diào)速的性價比高,和價格的競爭優(yōu)勢越來越明顯。要么隨時燈前急剎,但這會造成很多追尾事故。針對上述網(wǎng)友反映的問題,部交管局有關(guān)負(fù)責(zé)人表示,黃燈亮?xí)r,只要機(jī)動車車身任何一部分已越過停止線的,車輛可繼續(xù)通行,不認(rèn)定為闖黃燈。已越過停止線的車輛可繼續(xù)通行,未越過停止線的車輛要停止通行。在車輛正常行駛中,只要駕駛?cè)俗⒁饬?、與前車保持車距,行經(jīng)交叉路口時減速慢行、謹(jǐn)慎駕駛,“搶黃燈”和追尾事故是可以避免的。對一些網(wǎng)友反映的交通設(shè)置問題,交管部門將認(rèn)真聽取意見,積極采納、不斷改進(jìn)。電壓繼電器是一種電子控制器件,它具有控制(又稱輸入回路)和被控制(又稱輸出回路),通常應(yīng)用于自動控制電路中,它實際上是用較小的電流去控制較大電流的一種“自動開關(guān)”。
可以單相使用,也可以用兩臺接成V-V形作三相使用。實驗室用的電壓互感器往往是原邊多的,以適應(yīng)測量不同電壓的需要。供保護(hù)接地用電壓互感器還帶有一個第三線圈,稱三線圈電壓互感器。三相的第三線圈接成開口三角形,開口三角形的兩引出端與接地保護(hù)繼電器的電壓線圈聯(lián)接。正常運行時,電力的三相電壓對稱,第三線圈上的三相感應(yīng)電動勢之和為零。一旦發(fā)生單相接地時,中性點出現(xiàn)位移,開口三角的端子間就會出現(xiàn)零序電壓使繼電器,從而對電力起保護(hù)作用。線圈出現(xiàn)零序電壓則相應(yīng)的鐵心中就會出現(xiàn)零序磁通。為此,這種三相電壓互感器采用旁軛式鐵心(10KV及以下時)或采用三臺單相電壓互感器。對于這種互感器,第三線圈的準(zhǔn)確度要求不高。