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信息标签:MC-4/11/10/400,供应,电子、电工,工控系统及装备
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MC-4/11/10/400
诚信经营)(质量可靠)(进口**)(顺丰空运)
传统的高、低压厂用电的自投逻辑是由继电器来实现的,在进行DCS改造后,则是将自投逻辑所必需的外部条件送入DCS,由DCS进行逻辑判断,实现工作电源的低电压保护跳闸、备用电源的自投合闸和合于故障后的加速跳闸等功能。由DCS实现的自投逻辑与原来由继电器实现的自投逻辑在功能上是一样的。这里值得指出的是在高、低压厂用电的自投逻辑中,工作电源的欠压(低电压保护)、失压、备用电源的有压判断,有的电厂是由继电器来完成的。在继电器达到整定值后动作,其接点作为DCS的逻辑条件送入DCS。而我厂则是利用工作母线和备用母线的电压变送器,进行工作电源的欠压、失压、备用电源的有压判断,定值大小由DCS内部整定。在进行DCS改造后,为实现数据的显示和数据采集必需将工作母线和备用母线电压送入DCS,因此,不需再另加电压继电器进行自投逻辑判断。
OKUMA E4809-045-084-G VAC-BOARD
Okuma E7191-090-007 E4809-045-216
OKUMA E4809-045-113 E4809045113 1911-1599-4435
OKUMA E4809-045-109-C
OKUMA E4809-045-048C
OKUMA E4809-045-106-F
OKUMA BMP-N01 E4809-045-042-D
OKUMA E4809-045-091-E
Okuma E4809-045-106F
OKuma E4809-045-148-C
OKUMA E4809-045-110-C?
OKUMA E4809-045-109-D?
Okuma E4809-045-088-E
OKUMA E4809-045-010-?B
Okuma E4809-045-106-?G
OKUMA E4809-045-205-A
OKUMA E4809-045-106-G
OKUMA E4809-045-091-E
OKUMA E4809-045-112-C
OKUMA E4809-045-113
OKUMA E4809-045-174
OKUMA E4809-045-013-?E
OKUMA E4809-045-010-?A
OKUMA E4809-045-019C P
OKUMA E4809-045-113 E4809045113
OKUMA E4809-045-113 _E4809045113
Okuma E4809-045-062-F E4809-045-062F
OKUMA OE4809-045-013-?F
OKUMA E4809-045-012-?D
Okuma E4809-045-217-C
Okuma E4809-045-223-A
OKUMA E4809-045-175
Okuma OPUS 5000 Main E4809-045-045-G _1911-1140-27-7
Okuma OPUS 5000 Main E4809-045-044 _ 1911-1105-31-15?2
Okuma OPUS 5000 FDC E4809-045-062-F _ 1911-1132-52.13
Okuma OPUS 5000 E4809-045-039 E _1911-1110-35-4?0 _E4809
Okuma OPUS 5000 E4809-045-038-C _1911-1103-64-4?1 Main 3
Okuma OPUS 5000 Axis Card 1 PR3 DA3 E4809-045-040-A PCB
Okuma OPUS 5000 ECP 1 E4809-045-047C _ 1911-1140-27-7
OKUMA E4809-045-038-C E4809045038C
OKUMA E4809-045-061-D E4809045061D
OKUMA E4809-045-077-A E4809045077A
OKUMA SVPIID-DA E4809-045-109-D
OKUMA E4809-045-086-A E4809045086A
E4809045091E
OKUMA E4809-045-106-D E4809045106D
OKUMA E4809-045-109-C E4809045109C
OKUMA E4809-045-110-C E4809045110C
OKUMA E4809-045-112-C E4809045112C
OKUMA E4809-045-113 E4809045113
OKUMA E4809-045-133-A E4809045133A
OKUMA E4809-045-133-B E4809045133B
Okuma S E4809-045-061-D
Okuma E4809-045-077-A
OKUMA E4809-045-106-F
Okuma E4809-045-167-C
Okuma E4809-045-038-B?, WARRANTY
Okuma E4809-045-044
Okuma E4809-045-035-C