Vertiv EXM 0080kTK16FN01000, User Manual

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Chapter 6 Battery 95
Liebert EXM 80kVA ~ 200kVA UPS User Manual
6.11 Battery Ground Fault Detector (Option)
Vertiv provides an optional battery ground fault detector. It includes a mutual inductor and a PCB, which
should be installed in the BCB box. The installation position of the PCB is shown in Figure 6-5. If the BCB
box uses top cable entry, the mutual inductor should be installed on the inside of the top plate of the BCB
box, as shown in Figure 6-5; if the BCB box uses bottom cable entry, the mutual inductor should be
installed on the inside of the bottom plate of the BCB box. Connect the PCB as shown in Figure 6-7.
Note
If a battery ground fault detector is installed, the positive, negative and neutral battery cables from the battery into
the BCB box must be routed through the hole of the mutual inductor of the battery ground fault detector, while
other cables must bypass the mutual inductor for connection.
接
The positive and negative cables should be routed
through the sensor, but the earth cable should not
be routed through the sensor..
To bypass module dry contact J22
Brown
Black
Figure 6-7 Wiring of battery ground fault detector
6.12 BCB Reference Current And Connection
Table 6-4 provides recommended BCB rated current and battery maximum discharge current at full load.
Refer to Table 3B in IEC60950-1, and select appropriate cable CSA according to local electrical
regulations.
Table 6-4 BCB rated current and battery max. discharge current at full load (recommended)
Items Unit
UPS rated power (kVA)
80 100 120 160 200
30-block
battery Maximum battery discharge
current at full load
A
296 369 443 591 739