Specifications
5.5Electrical Specifications
RECTIFIER INPUT
| Standard voltages for 100 - 450kVA units: 208, 480 and 600VAC | |
Input Voltage | Standard voltages for 500 - 1000kVA units: 480 and 600VAC | |
| Other voltages available on request. | |
Voltage Range | +10%, | |
Frequency Range | 57 Hz to 63 Hz | |
| Less than 3 times normal full load input current for UPS models without optional | |
Subcycle Magnetization Inrush | input isolation transformer. Less than 8 times normal full load input current for | |
| models with optional input isolation transformer and optional input filter | |
Input Current | From 20% to 100% in | |
Current Limit | Maximum of 125% normal full load input current | |
| Less than 30% reflected THD typical at normal full load input current. Less than 7% | |
| reflected THD typical at normal full load input current with optional input filter | |
Current Distortion | 500kVA to 750kVA models with optional | |
| THD typical at normal full load input current. Less than 4% reflected THD typical at | |
| normal full load input current with optional input filter | |
Power Factor | 0.85 minimum lagging at full load | |
0.92 minimum lagging at full load with optional input filter | ||
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BYPASS INPUT |
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| Standard voltages - 208/120 VAC, 480/277 VAC, 600/346 VAC. | |
Input Voltage | plus ground or | |
Optional voltages - 208 VAC, 480 VAC, 600 VAC. | ||
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| (ungrounded or corner grounded delta). Other optional voltages available. | |
Voltage Range | ±5% for manually initiated bypass transfer | |
±10% for automatically initiated uninterrupted transfer | ||
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Frequency Range | 59.5 Hz to 60.5 Hz | |
Voltage Transient | ±4% for manually initiated bypass transfer | |
CRITICAL LOAD OUTPUT |
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| Standard voltages - 208/120 VAC, 480/277 VAC, 600/346 VAC. Other optional | |
| voltages available. | |
Output Voltage | SCC output: | |
Module output to SCC: | ||
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| Optional voltages - 208 VAC, 480 VAC, 600 VAC. | |
| (ungrounded or corner grounded delta). Other optional voltages available. | |
Voltage Regulation | ±0.5% for balanced load | |
±2% for unbalanced load | ||
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Voltage Adjustment Range | ±5% manually | |
Line Drop Compensation Range | Up to +5% automatic load dependent | |
Frequency | 595 Hz to 605 Hz | |
Slew Rate | 0.01 to 1 Hz per second, adjustable | |
Phase Balancing | 120° ±1° for balanced loads | |
120° ±3° for 50% unbalanced loads | ||
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Voltage Imbalance |
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20% Unbalanced Load | ±1% from the arithmetic average of the 3 phases | |
50% Unbalanced Load | ±2% from the arithmetic average of the 3 phases | |
Voltage Transient |
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20% Load Step | ±4% RMS | |
50% Load Step | ±4% RMS for | |
100% Load Step | ±5% RMS for | |
Loss or Return of AC Input Power | ±1% RMS | |
Manual Transfer of 100% Load | ±4% RMS | |
Voltage Transient Recovery Time | To within 1% of steady state output voltage within 50 milliseconds | |
Voltage Harmonic Content | Maximum 5% RMS total, for any combination of linear and nonlinear loads | |
Maximum 3% RMS single, for linear loads | ||
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Module Overload Capacity | 104% of full load rating continuously | |
at Full Output Voltage | 125% of full load rating for 10 minutes | |
(System overload capacity depends on | 150% of full load rating for 30 seconds | |
the configuration of | (with ±2% voltage regulation) | |
| Up to 300% of normal full load current subcycle; up to 500% of normal full load | |
Fault Clearing | current for up to 40 milliseconds with bypass available; up to 1000% of normal full | |
| load current for up to 16 milliseconds with bypass available |
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