Powerware FE/QFE UPS manual Electrical Input and Output

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 -8.3% and +5% of
	nominal)
u v	Sine wave; <5% THD at rated linear loads, computer-grade power
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 2000-to-1 spike attenuation. Tested using lightning standard
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 250-5d, with output neutral bonded to ground. There is no direct
a	connection between input and output, and less than 2 pF of effective input to output
	capacitance.

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