Specifications
4
3.2.1. Nominal input voltage: 480, 600 V, 3 phase, 3 wire.
3.2.2. Input voltage range: +15%, -15%.
3.2.3. Input frequency and range: 60 Hz ± 5%.
3.2.4. Input power factor: .98 (typical) at 100% load; 0.90 (typical) at 50 % load.
3.2.5. Reflected input current THD: 6% maximum at 100% load. Typically 9%
maximum at 50% load.
3.2.6. Rectifier walk-in time: 5 through 30 seconds (every 5 seconds selectable, 0 to
100% rated load).
3.3. Input (Bypass)
3.3.1. Nominal input voltage: 480, 600 V, 3 phase, 4 wire.
3.3.2. Input synchronization voltage range: ± 10% of nominal.
3.3.3. Input frequency tracking range: 60 Hz ± 5% maximum.
The synchronous range shall be selectable 1% to 5% in increments of 1%.
3.4. Output
3.4.1. Nominal output voltage: 480, 600 V, 3 phase, 4 wire.
3.4.2. Nominal dynamic voltage regulation: ± 1% for unbalanced loads.
3.4.3. Manually adjustable output voltage: ± 5% range.
3.4.4. Voltage transient response: Voltage transient response shall not exceed the
following, and shall recover to within nominal voltage regulation limits within
16.7 msec:
a. ± 2% for a 100% load step.
b. ± 1% (loss or return of AC input).
c. ± 5% (inverter ⇔ bypass).
3.4.5. Output frequency (inverter synchronous): 60 Hz (tracks frequency of static
bypass source).










