39
Circuit breaker protections
: MS1, MS2 and MS3 are the
main input switches for each UPS; BS1, BS2 and BS3 are the
Bypass input protections; OS1, OS2 and OS3 are the output pro-
tections; OS is the protection for the main output of the system;
and MBS is the protection for the manual maintenance Bypass.
For better understanding, it is assumed that the UPS has only
one bypass switch and the switches mentioned are external.
Input
UPS1
AC/DC rectifier
AC/DC rectifier
AC/DC rectifier
DC/AC
inverter
DC/AC
inverter
DC/AC
inverter
DC/DC
charger
DC/DC
charger
DC/DC
charger
Battery
Battery
Battery
Load
Manual bypass
Manual bypass
Manual bypass
MBS
OS1
OS
OS2
OS3
IS1
IS2
IS3
Static bypass
Static bypass
Static bypass
UPS2
UPS3
Fig. 56.
Connection diagram of three UPSs in parallel,
with common input.
Circuit breaker protections
: IS1, IS2 and IS3 are the
main input switches for each UPS; OS1, OS2 and OS3
are the output protections; OS is the main protection for the
output of the system; and MBS is the protection for the manual
maintenance Bypass. For better understanding, it is assumed
that the UPS has only one bypass switch and the switches men-
tioned are external.
SLC ADAPT
UNINTERRUPTIBLE POWER SUPPLY (UPS)
USER'S MANUAL
Summary of Contents for SLC ADAPT Series
Page 1: ...SLC serie ADAPT 180 300 y 500 kVA UNINTERRUPTIBLE POWER SUPPLY UPS USER S MANUAL...
Page 12: ...12 SALICRU Fig 8 Front view of 10 slot cabinet 500 kVA 300 kVA at 3x208 V with closed doors...
Page 64: ...64 SALICRU...
Page 65: ...65 SLC ADAPT UNINTERRUPTIBLE POWER SUPPLY UPS USER S MANUAL...