150-B54NBD-8B現(xiàn)貨
對(duì)自有業(yè)務(wù)板塊進(jìn)行騰挪是GE、西門子這些工業(yè)巨頭常用的戰(zhàn)略手段。自我減重是為了讓這些工
業(yè)巨頭更好地前行。從目前來看,減重之后,各大工業(yè)巨頭都將未來發(fā)展的重心聚焦于數(shù)字化工業(yè)。
目前看來,以西門子、GE和ABB為首的三大工業(yè)巨頭在數(shù)字化領(lǐng)域已經(jīng)找準(zhǔn)了自己的戰(zhàn)略方向。在全
球市場上,西門子在深耕專業(yè)領(lǐng)域的基礎(chǔ)之上,借助IT與網(wǎng)絡(luò)技術(shù)為客戶打造數(shù)字化解決方案,不斷
向上延伸;GE更加傾向基于IT與網(wǎng)絡(luò)技術(shù)打造通用平臺(tái),實(shí)現(xiàn)橫向拓展;作為后來者,ABB則以下沉
策略形成自下而上的戰(zhàn)略路徑,反撲智能制造市場。
作為工業(yè)互聯(lián)網(wǎng)的實(shí)踐者,數(shù)字化是GE未來工業(yè)的重頭戲。在2017年10月25日的“Mind +Machine
”的年度大會(huì)上,GE新任CEO弗蘭納里與微軟CEO納德拉(Nadella)聯(lián)合對(duì)話中,再次強(qiáng)調(diào)這一戰(zhàn)略
重點(diǎn)不會(huì)動(dòng)搖
隨著西門子變頻器的大力推廣后以及用戶對(duì)西門子變頻器的口碑傳播后,使得西門子變頻器在市場上受到群眾的大力追捧,不過用戶都會(huì)根據(jù)自己的實(shí)際工藝要求和運(yùn)用場合選擇不同類型的西門子變頻器,那么在選擇西門子變頻器時(shí),選擇者應(yīng)該注意些什么問題呢?選擇西門子變頻器應(yīng)該從哪些方面進(jìn)行選擇呢?本文將給大家一一講解。
對(duì)于這個(gè)問題,我們需要從不用的角度進(jìn)行分析和選擇。1、從變頻器負(fù)載特性上面進(jìn)行選擇
一般從負(fù)載特性進(jìn)行選擇的,都是類似于吹風(fēng)機(jī)等一下電氣,那么對(duì)這類型的,建議選擇西門子變頻器的mmv/mdv、mm420/mm440。
2、實(shí)際電動(dòng)機(jī)電流值作為變頻器選擇的依據(jù)
應(yīng)充分考慮變頻器的輸出含有豐富的高次諧波,會(huì)使電動(dòng)機(jī)的功率因數(shù)和效率變差。因此,用變頻器給電動(dòng)機(jī)供電與用工頻電網(wǎng)供電相比較,電動(dòng)機(jī)的電流會(huì)增加10%而溫升會(huì)增加20%左右。所以在選擇電動(dòng)機(jī)和變頻器時(shí)應(yīng)考慮到這種情況,適當(dāng)留有余量,以防止溫升過高,影響電動(dòng)機(jī)的使用壽命。
3、考慮西門子變頻器的緊湊型
推薦SINAMICS G120C緊湊型變頻器,在許多方面為同類變頻器的設(shè)計(jì)樹立了典范。包括它緊湊的尺寸,便捷的快速調(diào)試,簡單的面板操作,方便友好的維護(hù)以及豐富的集成功能都將成為新的標(biāo)準(zhǔn)。
我們在來看看對(duì)于選擇西門子變頻器我們應(yīng)該注意那些事項(xiàng)呢?
1、變頻器若要長電纜運(yùn)行時(shí),此時(shí)應(yīng)該采取措施抑制長電纜對(duì)地耦合電容的影響,避免變頻器出力不夠。所以變頻器應(yīng)放大一、兩擋選擇或在變頻器的輸出端安裝輸出電抗器。
2、當(dāng)變頻器用于控制并聯(lián)的幾臺(tái)電動(dòng)機(jī)時(shí),一定要考慮變頻器到電動(dòng)機(jī)的電纜的長度總和在變頻器的容許范圍內(nèi)。如果超過規(guī)定值,要放大兩擋來選擇變
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AMETEK DREXELBROOK SENSOR
AIRCRAFT DC9/MD80 HYD FLUID QUANTITY IND P/N SRL-12J
AIRCRAFT DC9/MD80 LOADMETER IND P/N 8AW61LAS1
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*AMETEK 3959724
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SCIENTIFIC COLUMBUS/AMETE?K XLGI10S1-A TRANSDUCER ***NNB***
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150-B54NBD-8B
ADEPT TECH 90338-51010 USPP 9033851010
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ADEPT TECH PN# 10332-00500 VJI MODULE JOINT INTERFACE MODULE REV. A
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Adept Tech 10332-10250 VGB Robot Board Control Module
Adept Tech Binary I/O Board 1031058010 #13991
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150-B54NBD-8B
NEW USG SOLFRUNT AMETEK PRESSURE GAUGE 0-30 PSI SB DIAPHRAGM 316L SST
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Lamb-Ametek #116158-01 36V 5.7 2 Stage Vacuum Motor
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150-B54NBD-8B
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