UPSB125 Uninterruptible Power Supply Caterpillar


Circuit Breaker Recommendation

Usage:

UPSB 125 SEP

上游保护

------ WARNING! ------

在维护或修理发电设备时:

确保装置在脱机状态(脱开公用电网或其它发电设备),并锁定或者系上标签不准操作(DO NOT OPERATE)。 拆下所有保险丝。


表 1 中所列的断路器符合 UPS 内安装的保险丝的额定容量要求。 将每个断路器上贴上包含以下声明的标签:

"在进行此电路的工作前,隔离不间断电源(UPS)。"

表 1
UPS 的额定功率     上游断路器    
分离正常交流输入 分离旁路交流输入     公共旁路和正常交流输入    
20 kVA     C60L - 50 A     NS100N 4P-TM100A     NS100N 4P-TM100A    
30 kVA     C60L - 63 A     NS100N 4P-TM100A     NS100N 4P-TM100A    
40 kVA     NS100N 3P-TM80A     NS100N 4P-TM100A     NS100N 4P-TM100A    
60 kVA     NS125E 3P-TM125A     NS125E 4P-TM125A     NS125E 4P-TM125A    
80 kVA     NS160N 3P-TM160A     NS160N 4P-TM160A     NS160N 4P-TM160A    
100 kVA     NS250N 3P-TM200A     NS250N 4P-TM250A     NS250N 4P-TM250A    
120 kVA     NS250N 3P-TM250A     NS250N 4P-TM250A     NS250N 4P-TM250A    

下游保护

表 2
UPS 的额定功率     下游断路器    
20-30-40 kVA     C60N - B - 40A    
C60N - C - 20A
60-80 kVA     C60N - C - 32A    
C60N - B - 63A
100-120 kVA     C120N - B - 80A    
C60N - C - 40A
NS100 - TMG - 63A

使用注释

所示保护可确保将处于 UPS 下游的每条输出电路区分开。 无论供电电源是正常的交流输入还是旁路交流输入,电路都可获得保护。

如果未安装正确的断路器,则输出电路中短路可能导致供电中断。 而这种供电中断可能在全部其它输出电路上持续超过 20 毫秒。

注: 有关公共交流输入或分离交流输入,参见参考一章"电气规格"中的简化示意图。 这些示意图说明了保护装置的位置和 UPS 内部保险丝的特性。 这些示意图还说明了在过载情况下 UPS 的线路电流。

地线漏电电流

地线漏电电流为 1 安。

Caterpillar Information System:

UPSB125 Uninterruptible Power Supply Communication Card Installation
UPSB125 Uninterruptible Power Supply Component Description
UPSB125 Uninterruptible Power Supply Component Location
UPSB125 Uninterruptible Power Supply Display Messages
UPSB125 Uninterruptible Power Supply Electrical Specification
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UPSB125 Uninterruptible Power Supply Cable Size Requirement
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