¥¥¥ABB SA167 X1¥¥¥
¥¥¥ABB SA167 X1 ¥¥¥
国产DCS两台电源冗余运行,一用一备。其中一台的交流输入电源阶跃下降,能切换到备用电源。如果斜坡下降,就不能切换到备用电源。这是电源系统的缺点之一。
N+1的电源方案没有进入到我国的DCS系统。进口DCS采用N+1电源,问题也很多。N+1电源的意思是只要知道每一个所插模件的功率,把所有模件所需功率求和,而每个模件电源的功率是一定的,所需总功率除以模件电源的功率,就得到电源数。有小数位,都要进一位成为整数,这个整数为N,然后再加一,称为N+1。
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卍卍卍 联系人:苏烈格
卍卍卍 企业:3004859263
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有多少人输给了三个字:下次吧
有多少人输给了三个字:考虑下
有多少人输给了三个字:不适合
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AB/施耐德/ABB/GE/本特利/西屋/英维思/霍尼韦尔/黑马/福克斯波罗
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VICKERS DSV4-10V-C-0-80 SCREW-IN CARTRIDGE VALVE 1/2 IN NPT D576619
DOUBLE A QF-3-TT-10D2 HYDRAULIC SOLENOID DIRECTIONAL VALVE 120V-AC D583951
PARKER BD03-PT-A SIOLD CARTPAK 24V-DC HYDRAULIC SOLENOID CARTRIDGE VALVE D567181
DOUBLE A NNBBC-3-1M-10B2 HYDRAULIC PRESSURE RELIEF VALVE D585011
GRESEN 01F2N PARALLEL DIRECTIONAL HYDRAULIC SPOOL VALVE 1/2 IN NPT D576671
YUKEN DSGM-03Y-2190 HYDRAULIC VALVE SUBPLATE D576550
PARKER CPOM2DDN 5000PSI HYDRAULIC CHECK VALVE D584307
REXROTH 4WE6H60/EW110N9Z4 HYDRAULIC SOLENOID VALVE 120V-AC D564597
TITAN SV-06-180-S HY-SPEC 3/4 IN NPT HYDRAULIC NEEDLE VALVE D567324
PARKER S16-08152-4 HYDRAULIC PILOT VALVE D587468
PARKER D1VW1KNYCF4 120V-AC DIRECTIONAL CONTROL HYDRAULIC VALVE D556689
REXROTH 4WE6D60/OFEW110N9K4 120V-AC SOLENOID HYDRAULIC VALVE D549957
SUN HYDRAULICS RPGC-FEV HYDRAULIC PISTON RELIEF VALVE 50GPM D583969
REXROTH 4WE6D60/OFEW110N9K4 120V-AC SOLENOID HYDRAULIC VALVE D549958
REXROTH 4WE6D60/OFEW110N9K4 120V-AC SOLENOID HYDRAULIC VALVE D550080
PARKER BVHP08SSS1NA 6000 PSI 1/2 IN NPT HYDRAULIC BALL VALVE D567205
PARKER A14LX3 SKINNER 21W 3000PSI HYDRAULIC SOLENOID VALVE D591577
PARKER S16-08152-4 HYDRAULIC PILOT VALVE D587470
SUN HYDRAULICS RVGALBN BALANCED PISTON HYDRAULIC RELIEF VALVE 60GPM D589046
EDI ME0901S 0E0 FLOW CONTROL HYDRAULIC VALVE THREADED 1-1/4IN D587244
SUN HYDRAULICS OB56-AB HYDRAULIC FLOW CONTROL VALVE 3/4IN NPT D587260
DOUBLE A QF-3-TT-10D2 120V-AC DIRECTIONAL SOLENOID HYDRAULIC VALVE D591346
HOKE 2112G6Y 3/8 IN GYROLOK SCREWED BONNET HYDRAULIC NEEDLE VALVE D526878
PARKER CM3PPN 50 3000PSI HYDRAULIC CHECK VALVE D596537
VICKERS DG4V-3-6B-M-U-B6-60-EN21 DIRECTIONAL CONTROL SOLENOID VALVE D567334
PARKER C600S80 HYDRAULIC CHECK VALVE 5000 PSI 8GPM 30LPM 3/8IN NPT D596827
YUKEN MSW-03-Y-40 HYDRAULIC THROTTLE CHECK VALVE D568769
VICKERS FAR1-12-S-0 FAR1-12-S-A12T HYDRAULIC FLOW CONTROL VALVE ASSEMBLY D567507
VICKERS 30697 3/4X1 IN NPT REV E HYDRAULIC VALVE BODY MANIFOLD D567162
VICKERS FAR1-12-S-0 FAR1-12-S-A12T HYDRAULIC FLOW CONTROL VALVE ASSEMBLY D566782
HYDRAFORCE 6301024 3601 24V-DC HYDRAULIC SOLENOID VALVE D590590
PGI V-502SCJ THREADED HYDRAULIC NEEDLE VALVE 1/4 IN NPT D522349
SUN HYDRAULICS HBA IKJ0-A2 2 HYDRAULIC VALVE MANIFOLD D562289
SLOAN SB-V-C OMNI 7500PSI DOUBLE POPPET SS CHECK VALVE 1/4IN NPT D516115
BOSCH FE2 PAEH M06P S 60 RACINE FLOW CONTROL HYDRAULIC VALVE D547434
SUN HYDRAULICS ZTK HYDRAULIC MANIFOLD VALVE D517857
DELTROL APIDC30S 10007-19 12GPM 1/2 IN NPT HYDRAULIC CHECK VALVE D557053
REXROTH Z2FS 6 A2-44/2QV HYDRAULIC CHECK VALVE D518185
PARKER 8A-U12LR-G-SS 8Z-U12LR-G-SS STAINLESS 1/2IN NEEDLE VALVE D527095
REXROTH DBDH 6 P18/100 MANNESMANN PRESSURE RELIEF HYDRAULIC VALVE D549961
SUN HYDRAULICS XPOA-XXV FOUR PORT CAVITY PLUG HYDRAULIC VALVE D534463
GRESEN WH-1200 HYDRAULIC RELIEF VALVE CARTRIDGE 1200PSI 1 IN NPT D576708
GRESEN WH-1800 HYDRAULIC RELIEF VALVE CARTRIDGE 1800PSI 1 IN NPT D576735
GRESEN WH-1000 HYDRAULIC VALVE RELIEF CARTRIDGE 1000PSI 1 IN NPT D576705
GRESEN WH-1500 HYDRAULIC RELIEF VALVE CARTRIDGE 1500PSI 1 IN NPT D576710
DAMAN AD08SPSO16P ALUMINUM HYDRAULIC VALVE MANIFOLD SUBPLATE D576800
PARKER B10-3-6T 1/4 IN NPT HYDRAULIC MANIFOLD CAVITY VALVE ASSEMBLY D567154
PARKER N800S-E HYDRAULIC NEEDLE VALVE 15GPM 1/2IN NPT 5000PSI D590773
PARKER B10-3-6T PRH101S30 HYDRAULIC RELIEF VALVE ASSEMBLY D566793
TITAN CIT-06-07-S HY-SPEC 3/4 IN NPT CHECK HYDRAULIC VALVE D567773
DUPLOMATIC Z4M4-I HYDRAULIC PRESSURE REDUCING VALVE D584835
SCHRADER BELLOWS SPF800B -40DJ FLOW CONTROL VALVE 2000PSI 1/2 IN NPT D576692
DAMAN AD03TP022AB HYDRAULIC VALVE MANIFOLD PLATE D576973
YUKEN DSG-03-3C2-A100-4190 HYDRAULIC DIRECTIONAL CONTROL VALVE D576786
PARKER 8Z-U12LR-G-SS STAINLESS BONNET 1/2 IN NEEDLE VALVE D527091
PARKER CPOM2DD31 5000PSI HYDRAULIC SANDWICH CHECK VALVE D564534
VICKERS SPERRY DGFN0120 286120 HYDRAULIC FLOW CONTROL VALVE D576546
VICKERS DG4V-3S-2F-M-FW-B5-60-EN21 DIRECTIONAL CONTROL SOLENOID VALVE D576774
PARKER CPOM2DDN50 5000PSI CHECK HYDRAULIC VALVE D558674
RACINE REXNORD 6 FB1 X0KP 174N 7 10 HYDRAULIC CHECK VALVE D566473
SUN HYDRAULICS CWEA-LHN COUNTERBALANCE HYDRAULIC CARTRIDGE VALVE D595110
SUN HYDRAULICS CXHA XBV 150-160 LBF HYDRAULIC CHECK VALVE D596830
SUN HYDRAULICS CXHA XZV 150-160 LBF HYDRAULIC CHECK VALVE D596831
FLUID CONTROLS 1PD12-R3-6S 40LPM 1/4 IN CARTRIDGE HYDRAULIC VALVE D567509