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| Configuration |
120/208 VAC, 3 phase, 5 wire WYE. Output is fully isolated from chassis and ground; neutral may be grounded. (other output
configurations available, see chart) |
| Voltage Range |
0 to 132 VAC L-N/0 to 228 VAC L-L adjustment is via 10 turn pot and a 10% trim for phases B & C
(other output configurations available, see chart). |
| Line Regulation |
±0.1% for ±10% input voltage change |
| Load Regulation |
Frequency |
Full Load |
| For Output 1 |
50/60 Hz |
0.5% |
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< 400 Hz |
2.0% |
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< 1000 Hz |
8.0% |
| For Output 2 |
50/60 Hz |
4.0% |
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< 400 Hz |
8.0% |
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< 1000 Hz |
20.0% |
| Output Frequency |
Switch selectable, fixed frequencies of 50, 60, 400 and 800 Hz, (variable 45-1000 Hz). If operated from optional external signal source, full
power frequency range = 10 Hz to 1 kHz |
| Frequency Accuracy |
±0.1% |
| Output Power |
30-480 kVA, full performance, 0.8 lead or lag. Performance degrades slightly for more extreme power factor but is unconditionally stable
into any load P.F. |
| Overload Current |
Up to 150% of rated output current for 7 seconds, at which time the output will be gated off and require a manual restart |
| Repetitive Peak Current |
2.9:1, Peak Current to RMS Current |
Output 1
Voltage
Distortion |
Frequency |
Up to 30 KHz |
Up to 1 Mhz |
| For Output 1 |
50/60 Hz |
0.5% |
1.5% |
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< 400 Hz |
1.0% |
2.0% |
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< 1000 Hz |
1.5% |
2.5% |
Output 2
Voltage
Distortion |
Frequency |
Up to 30 KHz |
Up to 1 Mhz |
| For Output 2 |
50/60 Hz |
0.5% |
1.5% |
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< 400 Hz |
1.5% |
2.5% |
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< 1000 Hz |
2.0% |
3.0% |
| Response Time |
Corrects for 100% load change in < 150 µs |
| Load Imbalance |
Maintains performance with 100% load imbalance |
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| Input Voltage |
A muli-tapped input transformer allows a system to be quickly connected for any of the popular 3 phase forms. |
| Voltage tolerance |
for all ranges is ± 10%: 208 VAC 3 Phase Wye*, 240 VAC 3 Phase Delta, 460 VAC 3 Phase Delta, 480 VAC 3 Phase Wye** |
| Frequency |
47 to 63 Hz (400 Hz inputs available as option) |
| Power Factor |
Input PF 0.8 typical at 50% to 100% of full rated output |
| Input Current Distortion |
Less than 5% THD |
Input Service
Requirements |
125% of system rating |
| Efficiency |
90% at full load, over 92% at 75% load. Idle losses = less than 1.5 kW on a 30 KVA system |
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Output Voltmeter
(true RMS) |
3 1/2 digit meter with 6 position selector switch. Selects each phase to phase and phase to neutral. Accuracy = 2% of full scale |
Output Current Meter
(true RMS) |
3 1/2 digit meter with 3 position phase select switch.
Accuracy = 3% of full scale |
Output Frequency
Meter |
Digital meter with decimal point. Accuracy = ±0.1% of full scale |
| Amplitude Control |
Master control varies all phases; a balance adjust is provided for B & C phases, each having a 10% range. |
| Oscillator Mode Select |
Rotary switch, selects 50 Hz, 60 Hz, 400, 800 Hz, variable frequency and program output. |
Variable Frequency
Control |
High resolution 10 turn pot, varies frequently from 45 to 1,000 Hz |
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| Temperature Range |
0 to 45 degrees centigrade |
| Humidity |
0 to 95% non-condensing |
| Audible Noise |
at 3 meters at full load, < 60 dBA at half load, < 50 dBA |
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*Not available on 120 kVA and above
**380, 400 & 416 Wye (standard) |
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