產(chǎn)品詳情
SHINHO星河SDL-HLS-GA1,出售云永WYFNG1C30R40DAEYEON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 
3)人的固有弱點:人具有遺忘、易出錯、注意力不集中、情緒不等固有弱點。設(shè)計良好的人機(jī)界面應(yīng)盡可能用戶操作使用時的記憶量,應(yīng)力求避免可能發(fā)生的錯誤;4)用戶的知識和受教育程度:使用計算機(jī)用戶的受教育程度,決定了他對計算機(jī)的知識;5)用戶對的期望和態(tài)度。[1]使用編輯明確監(jiān)控任務(wù)要求,選擇適合的HMI產(chǎn)品;在PC機(jī)上用畫面組態(tài)編輯“工程文件”;并保存已編輯好的“工程文件”;PC機(jī)連接HMI硬件,下載“工程文件”到HMI中;連接HMI和工業(yè)控制器(如PLC、儀表等),實現(xiàn)人機(jī)交互。發(fā)展趨勢編輯人機(jī)界面市場的發(fā)展現(xiàn)狀是全球人機(jī)界面需求量的市場,但卻不是全球人機(jī)界面產(chǎn)品銷售額的市場。吸合電流吸合電流是指繼電器能夠產(chǎn)生吸合的電流。在正常使用時,給定的電流必須略大于吸合電流,這樣繼電器才能地工作。而對于線圈所加的工作電壓,一般不要超過額定工作電壓的1.5倍,否則會產(chǎn)生較大的電流而把線圈燒毀。釋放電流釋放電流是指繼電器產(chǎn)生釋放的電流。當(dāng)繼電器吸合狀態(tài)的電流減小到一定程度時,繼電器就會恢復(fù)到未通電的釋放狀態(tài)。這時的電流遠(yuǎn)遠(yuǎn)小于吸合電流。電壓電流觸點切換電壓和電流是指繼電器允許加載的電壓和電流。它決定了繼電器能控制電壓和電流的大小,使用時不能超過此值,否則很容易損壞繼電器的觸點。觸點性能a.動合主觸點性能動合主觸點在電壓不大于250V時,能接通直流或交流5A,但是斷開它所接通的電路。
總之,只有了解用戶、了解任務(wù)才能設(shè)計出好的人機(jī)界面。確定為完成此功能人和計算機(jī)應(yīng)分別完成的任務(wù)任務(wù)分析有兩種途徑。一種是從實際出發(fā),通過對原有處于手工或半手工狀態(tài)下的應(yīng)用的剖析,將其映射為在人機(jī)界面上執(zhí)行的一組類似的任務(wù);另一種是通過研究的需求規(guī)格說明,導(dǎo)出一組與用戶模型和假想相協(xié)調(diào)的用戶任務(wù)。逐步求精和面向?qū)ο蠓治龅燃夹g(shù)同樣適用于任務(wù)分析。逐步求精技術(shù)可把任務(wù)不斷劃分為子任務(wù),直至對每個任務(wù)的要求都十分清楚;而采用面向?qū)ο蠓治黾夹g(shù)可識別出與應(yīng)用有關(guān)的所有客觀的對象以及與對象關(guān)聯(lián)的。考慮界面設(shè)計中的典型問題設(shè)計任何一個機(jī)界面,一般必須考慮響應(yīng)時間、用戶求助機(jī)制、錯誤信息處理和命令四個方面。
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。一般為戶外型。氣體絕緣電流互感器:主絕緣由氣體構(gòu)成。按安裝分類貫穿式電流互感器[5]:用來穿過屏板或墻壁的電流互感器。支柱式電流互感器:安裝在平面或支柱上,兼做一次電路導(dǎo)體支柱用的電流互感器。套管式電流互感器:沒有一次導(dǎo)體和一次絕緣,直接套裝在絕緣的套管上的一種電流互感器。母線式電流互感器:沒有一次導(dǎo)體但有一次絕緣,直接套裝在母線上使用的一種電流互感器。按原理分類電磁式電流互感器:根據(jù)電磁感應(yīng)原理實現(xiàn)電流變換的電流互感器。電子式電流互感器[6]:例如(1)光學(xué)電流互感器是指采用光學(xué)器件作被測電流傳感器,光學(xué)器件由光學(xué)玻璃、全光纖等構(gòu)成。(2)空心線圈電流互感器。又稱為Rogowski線圈式電流互感器。
退出有關(guān)保護(hù),防止誤。2.檢查高、低壓熔斷器及自動空氣開關(guān)是否正常,如熔斷器熔斷、應(yīng)查明原因立即更換,當(dāng)再次熔斷時則應(yīng)慎重處理。3.檢查電壓回路所有接頭有無松動、斷開現(xiàn)象,切換回路有無不良現(xiàn)象。[10]鐵磁諧振編輯磁鐵諧振的產(chǎn)生是在進(jìn)行操作或發(fā)生故障時,由于鐵心飽和而引起的一種躍變,電網(wǎng)中發(fā)生的鐵磁諧振分為并聯(lián)鐵磁諧振和串聯(lián)鐵磁諧振。[11]主要特點1)對于鐵磁諧振電路,在相同的電源電勢作用下回路可能不只一種的工作狀態(tài)。電路到底在哪種工作狀態(tài)要看外界沖擊引起的過渡的情況[10]。2)PT的非線性鐵磁特性是產(chǎn)生鐵磁諧振的根本原因,但鐵磁元件的飽和效應(yīng)本身也了過電壓的幅值。
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

t為熱電流時間。額定容量電流互感器二次額定容量要大于實際二次負(fù)載,實際二次負(fù)載應(yīng)為25~二次額定容量。容量決定二次側(cè)負(fù)載阻抗,負(fù)載阻抗又影響測量或控制精度。負(fù)載阻抗主要受測量儀表和繼電器線圈電阻、電抗及接線電阻、二次連接導(dǎo)線電阻的影響。使用注意事項編輯使用原則1)電流互感器的接線應(yīng)遵守串聯(lián)原則[8]:即一次繞阻應(yīng)與被測電路串聯(lián),而二次繞阻則與所有儀表負(fù)載電流互感器電流互感器串聯(lián)2)按被測電流大小,選擇的變比,否則誤差將增大。同時,二次側(cè)一端必須接地,以防絕緣一旦損壞時,一次側(cè)高壓竄入二次低壓側(cè),造身和設(shè)備事故3)二次側(cè)不允許開路,因一旦開路,一次側(cè)電流I1全部成為磁化電流,引起φm和E2驟增。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。

像德國進(jìn)口的機(jī)床,折彎機(jī),激光焊接機(jī)等等,當(dāng)然直線軸承和直線軸是配套用的。像直線導(dǎo)軌主要是用在精度要求比較高的機(jī)械結(jié)構(gòu)上,直線導(dǎo)軌的元件和固定元件之間不用中間介質(zhì),而用鋼球。直線導(dǎo)軌(linearslider)可分為:滾輪直線導(dǎo)軌,圓柱直線導(dǎo)軌,滾珠直線導(dǎo)軌,三種,是用來支撐和引導(dǎo)運動部件,按給定的方向做往復(fù)直線運動。依擦性質(zhì)而定,直線運動導(dǎo)軌可以分為導(dǎo)軌、導(dǎo)軌、彈性導(dǎo)軌、流體導(dǎo)軌等種類。中文名直線導(dǎo)軌外文名linearslider分類滾輪,圓柱,滾珠直線導(dǎo)軌作用運動部件按給定的方向做運動目錄1定義2分類3作用4自動調(diào)心能力5工作原理6應(yīng)用領(lǐng)域7使用注意8清潔導(dǎo)軌9發(fā)展概況定義編輯直線導(dǎo)軌又稱線軌、滑軌、線性導(dǎo)軌、線性滑軌。



