CRITICAL LOAD OUTPUT
Output Voltage: | Standard |
| voltages available on request. |
| SCC output: |
| Module output to SCC: |
| Optional |
| available on request. |
| grounded delta). |
Voltage Regulation: | ±0.5% for balanced load. |
| ±2% for unbalanced load. |
Voltage Adjustment Range: | ±5% manually. |
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Line Drop Compensation Range: | Up to +5% automatic load dependent. |
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Frequency | 59.5 Hz to 60.5 Hz. |
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Slew Rate: | 0.06 Hz per second. |
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Phase Balancing: | 120° ±1° for balanced loads. |
| 120° ±3° for 50% unbalanced loads. |
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% from the average peak voltage. |
30% Load Step | ±5% from the average peak voltage. |
100% Load Step | ±7% from the average peak voltage. |
Loss or Return of AC Input Power | ±1% from the average peak voltage. |
Manual Transfer of 100% Load | ±4% from the average peak voltage. |
Voltage Transient Recovery Time: | To within 1% of steady state output voltage within 50 milliseconds. |
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Voltage Harmonic Content: | Maximum 5% RMS total, for any combination of linear and nonlinear loads. |
| Maximum 3% RMS single, for linear loads. |
Module Overload Capacity at Full | 104% of full load rating continuously. |
Output Voltage: | 125% of full load rating for 10 minutes. |
(System overload capacity depends | 150% of full load rating for 30 seconds. |
on the configuration of | (with ±2% voltage regulation). |
modules.) |
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Fault Clearing: | 300% of normal full load current subcycle. |
| 1000% of normal full load current up to 40 milliseconds with bypass available. |
Specifications and Ratings | 121 |