76 Chapter 11 Specifications
APM 300 Integrated UPS Single Module And Parallel System User Manual
11.7
Electrical Characteristics (Bypass Mains Input)
Table 11-7
Bypass mains input
Item
Unit
Rated power (kVA)
30
~
300
Rated AC voltage
1
Vac
380/400/415 (three-phase four-wire, sharing neutral with the rectifier
input and providing neutral reference to the output)
Rated current
A
500
Overload
%
500A, long term
>500A, alarm, no action
2
Upstream protection, bypass
line
N/A
Thermomagnetic circuit breaker, rated up to 125% of nominal output
current. IEC 60947-2 curve C
Current rating of neutral
cable
A
1.7
×
In
Frequency
3
Hz
50/60
Transfer time (between
bypass and inverter)
ms
Synchronous transfer:
≤
1ms
Asynchronous transfer (default): 15ms (50Hz), 13.3ms (60Hz)
Or 40ms, 60ms, 80ms, 100ms selectable
Bypass voltage tolerance
%Vac
Upper limit: +10, +15 or +20, default: +15
Lower limit: -10, -20, -30 or -40, default: -20
(delay time to accept steady bypass voltage: 10s)
Bypass frequency tolerance
%
±
10 or
±
20, default:
±
10
Synchronisation window
%Hz
10
1. Default nominal voltage set at 400V at factory but can be changed to 380V or 415V by commissioning engineer at site.
2. Bypass protected by upstream air breaker only; bypass input cable CSA dependent on rating of upstream air breaker.
3. Default nominal frequency set at 50Hz at factory but can be selectable to 60Hz by commissioning engineer at site.
11.8
Efficiency, Heat Losses And Air Exchange
Table 11-8
Efficiency, heat losses and air exchange
Item
Unit
Rated power (kVA)
30
60
90
120
150
180
210
240
270
300
Overall efficiency
Normal mode (double
conversion)
%
96
ECO mode
%
98
Inverter efficiency (DC/AC) (battery at nominal voltage 432Vdc and full-rated linear load)
Battery mode
%
96
Heat losses and air exchange
Normal mode
kW
1.2
2.4
3.6
4.8
6
7.2
8.4
9.6
10.8
12
ECO mode
kW
0.6
1.2
1.8
2.4
3
3.6
4.2
4.8
5.4
6
No load
kW
0.6
1.2
1.8
2.4
3
3.6
4.2
4.8
5.4
6
Maximum forced air cooling
(front intake, back exhaust)
L/s
96
192
288
384
480
576
672
768
864
960
Note: Input and output voltage 400Vac battery charged, full rated linear load
Above condition applicable to voltage input and output range set at 400V and battery remains fully charged.
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