
Always
O
n UPS Systems
M0703_NX_Series_Operators_Manual
V1.25
2012-06-12 57
100% unbalanced load (Ph-N)
+/- 3%
100% linear load
< 2% THD maximum
Output voltage
distortion
100% non-linear load
< 3% THD maximum
Crest factor capability
Greater than 3:1
100% balanced load
120
o
+/- 1%
Phase
displacement
100% unbalanced load
120
o
+/- 2.5%
Output
frequency
Free running
50 / 60Hz, +/-0.1% Synchronized with utility
< 110%
Continuous
110 - 125%
15 minutes
125 - 150%
5 minutes
Overload
capability (on
inverter)
> 150%
30 seconds
Efficiency (100% Load)
92.5%
93.0%
93.0%
93.0%
93.5% 93.5% 94.0% 94.5% 94.5% 95.0% 95.0% 94.5%
BY-PASS
Input configuration
Common to rectifier (standard) or dual input (optional)
Primary components
Full load rated static switch, back-feed protection and internal maintenance by-pass
Voltage range
+/- 20% of input voltage (line to neutral)
Frequency range
45 - 55Hz / 55 - 65Hz
Efficiency
99.50%
Inverter to bypass
0 ms
Transfers time
Bypass to inverter
0 ms
200% of UPS rating
30 seconds
Overload capability
400% of UPS rating
1 second
Short circuit capability (on by-pass)
1000% for 1/2 cycle (non-repetitive)
Isolation transformer
Yes