Eaton 93PR Series, Installation And Operation Manual

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Eaton 93PR 60-1200 kW UPS
Installation and Operation Manual
65
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4.8.1. Supported Battery Configuration
Eaton 93PR modular UPS support common or separate battery configurations among frames.
The flexible battery setting will benefit the customer to save cost or optimize site planning design.
For separate battery configuration, each 93PR frame connect to separate battery bank. And the
battery settings between frames could be different but the backup time of whole UPS system is
limited by the minimum battery bank (See
Figure 4-16
and
Figure 4-17
).
For common battery configuration, now support 2/3/4 frames paralleled and connect to a common
battery bank. For common battery configuration. Charging and discharging batteries are shared
evenly among the UPMs. And there is no limitation how to allocate UPM among the frames.
Which means each frame may contain different numbers of UPM. But charging and discharging
power is equal for all UPMs.
It is recommended using separate battery breaker with auxiliary contactor even for common
battery and each battery breaker’s aux is connected to the own frames’ TB (See
Figure 4-16
and
Figure 4-17
).
The DC input voltage for 93PR is 400Vdc EOD and 620Vdc maximum . 93PR support various
DC source including VRLA, Lithium-ion, Ni-Cad, Supercaps and flywheel. For Lithium-ion battery
application, battery BTR and detail information shall refer to the battery’s own BMS. Or you can
contact Eaton for more integration application of BMS data on UPS’s HMI.