Battery System Installation - Eaton 93PR Installation And Operation Manual

4.8. Battery System Installation

External Battery Cabinet Installation (EBC)
Before connecting the external battery, please read the notice and warning label on the battery cabinet.
WARNING
• In the event of malfunction, the battery cabinet chassis or battery cabinet frames may become
live!.
• Special care should be taken when working with the battery cabinet associated with the
equipment. Ensure the battery number is suited to the setting of the battery charging voltage
before installing the battery. When the battery cabinet is connected the overall voltage exceeds
nominal voltage. It is very important to ensure that the batteries are installed separately, in a
dedicated battery cabinet.
• Battery back-up time do not exceed one hour, if the battery setting shall be exceeded one
hour, consult to the professional personnel.
NOTE
• The most common battery type used in UPS installations is the valve regulated battery. Valve
regulated cells are not sealed. The amount of gas given off is less than for flooded cells, but
when planning the battery installation, allowance must be made for adequate ventilation and
heat dissipation. Valve regulated cells are not completely maintenacefree. They must be kept
clean and their connections checked periodically to ensure they are tight, and that there is no
evidence of corrosion. It is inevitable that the batteries will lose charge during transportation
and storage; before attempting to carry out an autonomy test, ensure that the batteries are
fully charged as this may take several hours. Cell performance typically improves after a few
discharge/recharge cycles.
• The requirements of the EC directives are satisfied when battery cabinet are used with
original accessories. If alternative batteries are used, you must ensure that the applicable EC
directives are met and declare conformity.
The default battery settings of the UPS are for 12 Vdc VRLA batteries. If requested to use other
battery types, contact your Eaton representative. For the battery specification, see Section
Specification .
Connect the battery cabinet as follows:
1. Turn off the UPS.
2. Check all the external battery breakers are open.
3. Connect PE first.
4. Connect the battery cabinet(s) with cables sized according to cable cross section and protective
device specification to terminals + (positive pole) and - (negative pole).
5. Refer to instructions provided with the battery cabinet or by vendor.
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8.4 Battery