80 kVA - 130 kVA UPS
User’s and Installation Manual
1017397
Revision D (update)
8
That is exactly why the Powerware Hot Sync™ technology was developed. An industry
leading paralleling technology in its own right, the patented Hot Sync enables you to set
up a parallel redundant system giving you 100% conditioned power at all times. Its
unique digital design eliminates the system level single point of failure inherent in
traditional parallel UPS modules, and exponentially increases the reliability of the
overall system.
Hot Sync allows two or more UPS units to cover the same load in parallel and redundant
configuration, by working in complete synchronization. No common logic is needed in
this patented design. It provides automatic load sharing and module level redundancy
with nothing other than the power connecting the Hot Sync version of UPS modules.
2.2 UPS configurations
The UPS system consists of the UPS device itself and the external backup battery. In
addition, several options may be included in the system.
Figure 2.
Dimensions of the UPS, battery and SPM9340 cabinets.
The main considerations in planning the UPS system are:
•
The UPS output power rating shall be specified according to the total power
demand of the protected system. Some margin should be allowed for potential
expansion of the protected system, and for possible inaccuracy in calculating or
measuring the actual power requirement.
•
The battery shall be sized according to the desired backup time. Note that the
backup time is longer if the load is less than the nominal power rating of the UPS.