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Chapter 1 Introduction
10
Capacity 20kVA 30kVA 40kVA 60kVA
Model UL33-0200L UL33-0300L UL33-0400L UL33-0600L
Overload capability(inverter)
105%
<
load 125% , transfer to bypass mode after 10
±
0.1min;
125%
<
load 150% , transfer to bypass mode after 1 minute;
When load > 150%, transfer to bypass mode after 200ms
Overload capability(bypass)
135% Rated Current continuously
135%~170% for 1 minute
>170%, shutdown in 2s
1000% rated current for 20ms(a standard for selecting static
switch)
Ratio of output current peak
value to RMS value
3: 1
Transfer time(normal mode)
0(uninterrupted transfer)
，
15ms(interrupted transfer)
Output
Transfer time(ECO mode) 15ms
System efficiency(linear load) 87% 87% 88% 89%
Efficiency in battery
mode(linear load)
92% 93% 93% 94%
Display LCD+LED
Conduction EN50091-2
Radiation EN50091-2 CLASS-A
Harmonic IEC1000-3-4
EMC/EMI
Immunity
EN 61000-4-2.3.4..6.8.9.11 Level III
,
EN 61000-4-5 Level
Ⅳ
MTBF(inverter) 30,000 hours
MTBF(Single UPS) 150,000 hours
MTBF(1+1 parallel operation
system)
400,000 hours
Safety CCEE
Audible noise at 2m <60dB <65dB
Cross current without
load(1+1)
<3A
Cross current without
load(3+1)
<4A
current unbalance rate(1+1) <3%
System
current unbalance rate(3+1) <4%