Liebert 7200 Series - Page 79

7200 Series UPS User Manual Chapter 7 - 1+1 Parallel System
Single Module and 1+1 Parallel System Generality
document in response to "powersure ups"
Page 7-3
Issue 6
(03/98)
Rectifier
Switch Q1
Output
Switch Q4
Module 2
UPS
Output
Maintenance Bypass power Switch Q3
Bypass
Supply
Rectifier
input .
Supply
Bypass power Switch Q2
Module 1
Battery
Isolator
2
Battery
Circuit
Breaker
Bypass power Switch Q2
Maintenance Bypass power Switch Q3
Bypass
Supply
Rectifier
input .
Supply
UPS
Output
Output
Switch Q4
Rectifier
Switch Q1
Distribution
of loads
Distribution panel
Battery
Isolator
1
Auxiliary
Battery
Distribution
Box
RECTIFIER INVERTER
STATIC
SWITCH
and K1
BATTERY
RECTIFIER
INVERTER
STATIC
SWITCH
and K1
Inputs
distribution
( * ) Note: Before opening one of the distribution isolator, open the corresponding
output isolator of UPS ( Q4 )
( * )
( * )
Figure 7-B . System with common battery