Modifications reserved
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OPM_SGS_USM_M75_M75_2US_V010.doc
User Manual
SG Series 750 UL S2 & SG Series 750 T12 UL S2
4.2 OPERATION MODES
4.2.1 Normal operation mode
During normal operation, the
Rectifier
converts
input AC power to DC.
The DC power provides input power for the
Inverter
and charging power for the
Battery
.
The
Inverter
converts the DC power to continuous
and regulated AC power, which supplies the
critical load.
The control panel reports the
Battery
charge
status and the expected backup time with the
actual load.
Fig. 4.2.1-1 Block diagram normal operation mode
4.2.2 eBoost™ operation mode (option)
eBoost
™
e
high efficiency (up to 99%)
Boost
fast power transfer (< 4ms)
When the
eBoost™ Operation Mode
is selected,
and the
Utility Power
is available, the
Load
is
normally powered through the
Automatic
Bypass
.
When the
Utility Voltage
is detected out of the
prescribed tolerances, the
Load
is automatically
transferred to the
Inverter
.
Fig. 4.2.2-1 Energy flow in eBoost™ Operation Mode
When the
Utility
recovers, the
Load
returns to the
Automatic Bypass
after a variable time defined by the
control unit.
The
eBoost™ Operation Mode
can be configured directly by the user for scheduled activation,
considering the
Utility
reliability and criticality of the
Load
.
The selection between the two operation modes “
VFI Mode
and
eBoost™ Operation Mode
”, or switching
between operation modes at required time, can be done through the UPS
control panel
(see
Section 7.4
/ eBoost)
.
NOTE !
The
eBoost™ Operation Mode
is available only if enabled at the factory or by a GE
GLOBAL SERVICES FIELD ENGINEER.