B–2
SPECIFICATIONS
Inverter AC Output Ratings
Refer to Table B–1 for nominal voltage (Vac) values available.
Voltage:
Nominal value ±1% for all conditions of line, load, and temperature
Frequency:
Normally synchronized to the bypass ac input source (when
available); otherwise, the output frequency is the nominal value
±0.1%
Phases:
Three-phase, phase rotation A, B, C
Wires:
Three or four. The UPS inverter output is normally a Wye
configuration with the neutral grounded. A three-wire delta load can
be connected to the UPS inverter output, but the phase connections
cannot be grounded.
Current:
See Table B–2
Power Factor:
The UPS inverter output is rated at full kVA, 0.8 power factor lagging
load
Slew Rate:
The rate of change of the UPS inverter output frequency, while
tracking within the frequency window, when synchronizing to the
bypass ac input source, or when going to a free-running condition
after losing ac input power, is 1 Hz/second maximum
Overload
Characteristics:
Applies to the UPS output when operating from either the bypass ac
input source or the UPS inverter output:
125% for 10 minutes
150% for 1 minute
Overloads in excess of 150% or exceeding the overload time periods
previously indicated, will cause the load to be transferred from the
UPS inverter output to the bypass ac input source, provided the
sources are synchronized. Once the load is transferred to the bypass
ac input source after exceeding the time periods previously indicated,
the timed periods will start again for operation on the UPS static
switch. If the load does not return to less than the unit’s fill load
rating prior to completing the timed overload periods, the load will be
disconnected.
Dynamic
Characteristics:
Peak voltage deviation on the UPS inverter output is listed below for
the conditions indicated:
50% step load change ±3% maximum
100% step load change ±5% maximum
Dynamic Response:
The UPS inverter output voltage returns to ±1% of nominal within
one cycle after experiencing a 100% step load change
Battery Characteristics
DC Voltage Range:
325 Vdc minimum
436 Vdc maximum
DC Current Required:
See Table B–2
Summary of Contents for HA3000
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