ACS-CP-D操作面板
泵类负载采用变频调速后,节电率为20%~60%,这是因为风机、泵类负载的实际消耗功率基本与转速的三次方成比例。当用户需要的平均流量较小时,风机、泵类采用变频调速使其转速降低,节能效果非常明显。而传统的风机、泵类采用挡板和阀门进行流量调节,电动机转速基本不变,耗电功率变化不大。据统计,风机、泵类电动机用电量占用电量的31%,占工业用电量的50%。在此类负载上使用变频调速装置具有非常重要的意义。目前,应用较成功的有恒压供水、各类风机、中央空调和液压泵的变频调速。
ACS-CP-D操作面板
模块电源越来越显示其性,它工作频率高、体积小、可靠性高,便于安装和组合扩容,所以越来越被广泛采用。国内虽有相应模块生产,但因生产工艺未能赶上国际水平,故障率较高。
DC/DC模块电源虽然成本较高,但从产品的漫长的应用周期的整体成本来看,特别是因系统故障而导致的高昂的维修成本及商誉损失来看,选用该电源模块还是合算的,在此还值得一提的是罗氏变换器电路,它的突出优点是电路结构简单,效率高和输出电压、电流的纹波值接近于零。
ACS-CP-D操作面板
Matrox Mga-Myst 1064SG-D Chip Gpu 4MB PCI Retro Lavagna Video VGA Scheda 644
Matrox Mga-Myst 1064SG-D Chip Gpu 4MB PCI Retro Tabla Vídeo VGA Gráfica 644
Matrox Mga-Myst 1064SG-D Puce Gpu 4MB PCI Rétro Carte De Video VGA Graphique 644
Matrox MGI G55MADDA32DB AGP Grafikkarte 32MB DMS-60
Matrox Millenium P650 Low Profile PCI Dual Head P65-MDDAP64F 2x DVI + 1x VGA G24
Matrox Millennium (IS-STORM R2) 2MB PCI graphics card
Matrox Millennium G200, 8MB, AGP 2x, G2/MEC0A/8BF/20, VIDEO CARD - WORKING!
Matrox Millennium G450 DualHead 32MB (G45+MDHA32DB) AGP graphics card
Matrox Millennium MGA G200 A AGP 8MB - Scheda video vintage card graphic adapter
MATROX,VIDEO CARD,790-01 REV.A G100A/4/CPQ 332887-002 328011-001
Matrox-MGA Video AGP MGA-G200A-D2 PN: S26361-D1114-V80
Original 32MB Matrox 7012-03 Rev:A G55 + MDHA32DB DVI VGA AGP Graphics Karte
Originale 32MB Matrox 7012-03 Rev: A G55 + MDHA32DB DVI VGA AGP Graphics Scheda
Passive Coolers Dual Head 3D Office Graphic Card For 2 Displays Matrox G45+32MB
Passive Coolers Mga Dual Head 3D Graphic Card For 2 Displays Matrox G45 +32MB #
Passivgekühlte Dual Head 3D Graphic Card For 2 Displays Matrox G45 +32MB RAM G20
Passivgekühlte Dual Head 3D Graphic Card For 2 Displays Matrox Mga G45 32MB RAM
PCI Low Profile Graphic Card Matrox Millennium P650 Dual Head P65-MDDAP64F G24
PCI-TV+Grafik Matrox MGI G2+/DUAL-PL/TVE [8421]
Profil Bas Graphique MATROX G450 G45FMLDVA32DB DVI Windows XP 2000 98 Serveur
Scheda 视频每电脑 Matrox 550 AGP
SFF / bajo Perfil Dual Matrox G550 32MB PCI G55MDDAP32DBF Con DVI Divisor
SFF / Bas Profil Double Matrox G550 32MB PCI G55MDDAP32DBF Avec DVI Séparateur
SFF / Basso Profilo Doppio Matrox G550 32MB PCI G55MDDAP32DBF Con DVI Splitter
SFF / LOW PROFILE DUAL DISPLAY MATROX G55MDDAP32DSF G550 32MB PCI GRAPHICS CARD
SFF / LOW PROFILE DUAL MATROX G550 32MB PCI G55MDDAP32DBF WITH DVI SPLITTER