Table 11. Electrical Input and Output
m e | Online: 60 Hz (FE) or 50 Hz (QFE) with nominal power line grid stability of ±0.005 Hz. |
| On inverter: 60 Hz (FE) or 50 Hz (QFE) ±0.03 Hz. Output frequency tracks input line frequency |
| up to limit, which is adjustable from ±0.01 Hz to ±3.00 Hz. Inverter turns on if line frequency |
| exceeds the selected limit. |
q | ±3% load regulation (under any line, load, or battery condition to within |
| nominal) |
u v | Sine wave; <5% THD at rated linear loads, |
n b | On line (nominal Vac in): 150% surge and 125% for 10 minutes. |
| On inverter (nominal Vdc in): 150% surge and 110% for 10 minutes. |
| Overload operation is not thermally limited. The FERRUPS UPS microprocessor continuously |
| monitors output VA and sounds an alarm before loss of output voltage regulation occurs. |
cb h o | DC fuse and battery charger fuse |
n o | Output Protection: The ferroresonant transformer inherently limits current and provides |
| overload protection. The FERRUPS UPS has high AC and low AC output voltage alarms, as |
| well as an overload alarm. If the AC output voltage falls below the low AC output voltage |
| alarm setpoint, the UPS sounds an alarm after five seconds. If the AC output voltage falls |
| below the low AC output shutdown setpoint, the UPS sounds an alarm and shuts down. |
| Some models have output receptacles protected by fuses or circuit breakers. |
k r | The FERRUPS UPS provides |
o | per ANSI/IEEE C62.41 Category A (6000V spike and 200A) and Category B (6000V spike |
| and 3000A) test, and ANSI/IEEE C62.45 test procedures. |
h h | The FERRUPS UPS provides a true separately derived power source, as defined by National |
n m f | Electrical Code Article |
a | connection between input and output, and less than 2 pF of effective input to output |
| capacitance. |
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56 | Powerware® FERRUPS FE/QFE UPS (500 |
