Eaton Powerware 9390 Specifications Manual - page 9
Static Uninterruptible Power Supply
Page 9 of 9
Eaton 9390 Guide Specification
October 9, 2009
1.
Synchronizing bypass voltage range shall be +/- 10% of average nominal input
voltage.
2.
Synchronizing bypass frequency range is centered on the nominal frequency.
3.
Bypass and rectifier inputs can be supplied from out of phase sources if required.
4.
Input surge withstand capability: The UPS shall be in compliance with IEEE 587
(ANSI C62.41), category A & B (6kV).
D.
Rectifier/charger output:
1.
Nominal DC voltage shall be variable between 384VDC to 480VDC for 208V
input, and between 432VDC to 480VDC for 480V input.
2.
Steady state voltage regulation shall be +/- 0.5%.
3.
Voltage ripple shall be less that 0.5% (peak-to-peak).
4.
Capacity: The rectifier/charger shall support a fully loaded inverter and recharge
the battery to 90% of its full capacity within 10 times the discharge when input
current limit is set at maximum.
5.
Low line operation: The rectifier/charger shall be capable of sharing the DC load
with the battery when the input voltage falls below the specified operation input
voltage range, the on battery indicator shall enunciate operation in this mode.
6.
DC sensing: Redundant DC voltage sensing methods shall be incorporated for
providing battery over-voltage protection.
7.
Battery charger characteristics: The UPS battery charging system shall have the
following characteristics:
a)
The charger shall be capable of being configured for several charge
modes including:
(1)
A charging mode that increases battery life by allowing the
battery to rest, reducing positive plate corrosion
(2)
A charging mode floating the battery at a set level, which can be
adjusted via software, used for flooded cell applications
(a)
Nominal Float Voltage: 2.25 V per cell.
(b)
Equalizing Voltage: 2.38 V maximum per cell
(adjustable).
(c)
Automatic (time based) or manual (user initiated)
equalization available
b)
UPS module will automatically adjust battery shutdown based upon
loading and battery capacity.
(1)
The UPS module shall automatically adjust the final discharge
voltage between 1.67 and 1.75 Volts per cell based on the
existing load and the rate and length of discharge.
(2)
The absolute minimum operational voltage is 1.67 V per cell
(adjustable).
8.
The UPS module will automatically disconnect the battery system in case of full
battery discharge followed by prolonged utility AC voltage failure. The time
window before battery disconnection occurs shall be programmable for both time
and voltage.
E.
UPS output in normal mode