Overview of 1+1 Redundant Parallel System with Common Battery Bank

MIB Mains input breaker
BIB Bypass input breaker
UIB Unit input switch
SSIB Static switch input switch
UOB Unit output switch
Ext. UOB External unit output breaker
MBB Maintenance bypass switch
Ext. MBB External maintenance bypass breaker
BB1 Battery breaker 1
BB2 Battery breaker 2
NOTE: Common battery banks are not supported in systems with internal batteries.
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