Figure 4-5. Distributed Bypass Wire Length - Eaton Power Xpert Plus 1 Installation And Operation Manual

UPS SYSTEM INSTALLATION
Bypass Input to UPS Units
1A
2A
3A
4A
NOTE Required parallel system wiring length must be equal to ensure approximately equal current sharing when in Bypass mode. For proper
operation the following must be true:
1A = 2A = 3A = 4A
1B = 2B = 3B = 4B
NOTE Any difference in wire length will result in decreased capacity of the UPS system while on bypass. For example, a 10% difference
between the longest and shortest wire lengths will result in a decrease in bypass capacity of 10%.
t
4-10
Power Xpert 9395 UPS (450–550 kVA) Installation and Operation Manual
UPS 1
Battery
UPS 2
Battery
UPS 3
Battery
UPS 4
Battery
Figure 4‐5. Distributed Bypass Wire Length
1B
2B
3B
4B
S
www.eaton.com/powerquality
164201701 Rev 4
Output from UPS Units