Figure 1.2 Single Line Diagram - Bypass Operation - Toshiba G8000MM Series Installation And Operation Manual

!
The Bypass Input circuit breaker for protection of the UPS and cables are field supplied
and field installed. (See WARNING 4 on page 5)
NOTE
B) Bypass Operation: Load Power supplied through each system UPS internal static
bypass line.
FIGURE 1.2 Single Line Diagram - Bypass Operation: Load fed through Internal static
AC Bypass
Input
AC input
In Figure 1.2, the Internal Static Bypass line is a Hard wired line through CB3 and contactor
52S which supplies the critical load with unconditioned input power.
In parallel operation each system UPS internal static bypass line will equally share the
power supplied to the critical load.
The internal static bypass line will route power to the critical load while the UPS module is
de-energized during Start-up and before the system is fully operational.
Bypass operation will occur In the event of a load overcurrent, with all system UPS
transferring to bypass without interruption to the critical load.
The internal control system determines the operation of the two paths, with the load powered
from the inverter being the normal operation.
G8000MM
Installation and Operation Manual
bypass line.
CB
User supplied
Breaker
RECTIFIER
CB1
Battery cabinet
Static Transfer
Switch
CB3
INVERTER
52S
52C
CB2 Power Flow
Not in Use
UPS Module
Output
9