MITSUBISHI ELECTRIC 9700 Series - Manual (Page 11)

MITSUBISHI
ELECTRIC 9700 SERIES UPS
OWNERS / TECHNICAL MANUAL
Page Number:
1-4
MITSUBISHI ELECTRIC 9700 SERIES UPS
B) Internal Static Bypass Line (FIGURE 1.2)
The Internal Static Bypass line is a Hard wired line through CB3, contactor 52S which
supplies the critical load with unconditioned input power. The purpose of this line is to
route power to the critical load while the UPS module is de-energized during Start-up
before the system is fully operational.
FIGURE 1.2 Single Line Diagram- Bypass Operation
C) Inverter supply at battery operation (FIGURE 1.3)
FIGURE 1.3 Single Line Diagram - Battery Operation
If the input power is interrupted, the battery will immediately supply the DC power required
by the Inverter to maintain continuous AC power to the load. A fully charged battery will
provide power for the specified time at the rated load, or longer, at a reduced load.
Static Transfer
Switch
AC Bypass
Input
Output
AC input
CB
CB3
52S
52C
Use supplied
MCCB
UPS Module Battery cabinet
CB1
CB2 Power Flow
Not in Use
CONVERTER INVERTER
Static Transfer
Switch
AC Bypass
Input
Output
AC input
CB
CB3
52S
52C
Use supplied
MCCB
UPS Module Battery cabinet
CB1
CB2 Power Flow
Not in Use
CONVERTER INVERTER