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PowerPro HP300 Series User Manual
3.4 Parallel System Accessories
At standart HP 300 series there is no installed parallel components but they can install. For parallel operation
the following part are necessary:
•
Parallel control board
•
Current transformers
•
Digital connection cable
•
Analog connection cable
•
Fully static bypass system
During order the customer must give information to factory.
IMPORTANT NOTE:
Parallel system installation is much more complex from stand alone UPS installation, it
needs qualified sevice personnel.
You have to keep 80 cm distance between two UPS for service purposes. The maximum length of digital and
analog cable is 2 meters.
Add %20 tolerant to cables, fuses and circuit breakers in parallel connection.
At figure 3-2 ,the connections of 2 parallel UPS and load switch panel is shown.