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UPS SYSTEM ONELINE DRAWING
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A
DESCRIPTION:
DATE:
DRAWING NO:
SHEET:
REVISION:
MAINTENANCE
BYPASS PANEL
(PROVIDED BY OTHERS)
Output
from
UPS
MIB
To UPS
Input
MIB:
MAINTENANCE ISOLATION BREAKER
MBP:
MAINTENANCE BYPASS BREAKER
MBP
Backfeed
K5
K3
STATIC
SWITCH
AC INPUT
BATTERY
BREAKER
TYPICAL MAINTENANCE BYPASS PANEL POWER FLOW
BATTERY CABINET
UPS
CRITICAL LOAD
DISTRIBUTION
UNIT
NOTE If installing, as part of the UPS system, a maintenance bypass without a rectifier input
breaker, a minimum of two separate feeds with upstream feeder breakers, or one feed
with two upstream feeder breakers, must be provided: one for the UPS and one for
the maintenance bypass input. DO NOT use one feed or a single‐feeder breaker to
supply both the UPS and the maintenance bypass.
INSTALLATION INFORMATION
EATON Powerware
®
9390 UPS (20–80 kVA) Installation and Operation Manual
S 164201603 Rev 2 www.powerware.com
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