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Eaton 93PS UPS 8–40 kW
3.3
The Eaton UPS has many features that provide cost-effective and consistently
reliable power protection. The feature descriptions provide a brief overview of
the UPS standard features.
3.3.1
The Advanced Battery Management technology uses sophisticated sensing
circuitry and a three-stage charging technique that extends the useful service
life of UPS batteries while optimizing the battery recharge time. ABM also
protects batteries from damage caused by high current charging and inverter
ripple currents. Charging at high currents can overheat and damage batteries.
charge mode , the batteries are recharged. Charging lasts only as long as
In the
it takes to bring the battery system up to a predetermined float level. Once this
level is reached, the UPS battery charger enters the
operates in the constant voltage mode.
rest mode begins at the end of the charge mode; that is, after 48 hours of
The
float charging (user-adjustable). In the rest mode, the battery charger is
completely turned off. The battery system receives no charge current during this
rest period of approximately 28 days (user-adjustable). During the rest mode,
the open circuit battery voltage is monitored constantly, and battery charging is
resumed when necessary.
3.3.2
The Eaton Powerware Hot Sync technology is an algorithm that eliminates the
single point of failure in a parallel system and therefore enhances system
reliability. The Hot Sync technology is incorporated in all Eaton 93PS UPSs, and
it is utilized in both multi-module internal parallel and external parallel systems.
The Hot Sync technology enables all UPMs to operate independently in a
parallel system, even without inter-module communications. The power modules
utilizing the Hot Sync technology are completely autonomous; each module
monitors its own output independently to remain in complete synchronization
with the other modules. The UPM power modules share the load perfectly even
in changing capacity or load conditions.
The Powerware Hot Sync technology combines digital signal processing and an
advanced control algorithm to provide automatic load sharing and selective
tripping in a parallel UPS system. The load share control algorithms maintain
synchronization and load balance by constantly making minute adjustments to
variations in the output power requirements. The modules conform to demand
and are not in conflict with each other for the load. The Powerware Hot Sync
systems are capable of paralleling for both redundancy and capacity.
©
Eaton Corporation plc 2016. All rights reserved.
UPS features
Advanced Battery Management
Powerware Hot Sync
Revision: 003
Document ID: P-164000493
User's and installation guide
float stage and the charger
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