Tower UPS 10kVA~40kVA User Manual 53
Safety Precautions
7.4.4 Electrical Characteristics (Bypass Mains Input)
Table 7.8 Bypass Mains
Input
Item
Unit
Value
Rated AC
voltage
Vac
380/400/415
(three-phase four-wire and sharing neutral with the bypass)
Overload
％
125% Long term operation;
125%~130% for 10min;
130%~150% for 1min;
150%~400% for 1s;
>400% ,less than 200ms
Current rating of
neutral cable
A
1.7×In
Rated frequency
Hz
50/60
Switch time
(between bypass
and inverter)
ms
Synchronized transfer: 0ms
Bypass voltage
range
％
Settable, default -20%~+15%
Upper limit: +10%, +15%, +20%, +25%
Lower limit: -10%, -15%, -20%, -30%, -40%
Bypass
frequency range
％
Hz
Settable,
±
1Hz,
±
3Hz,
±
5Hz
Synchronized
Range
Hz
Settable ±0.5Hz~±5Hz, default ±3Hz
7.5 Efficiency
Table 7.9 Efficiency
Rated power(kVA)
Unit
10/15kVA
20/30kVA
40kVA
Overall efficiency
Normal mode(dual conversion)
％
>95
>95
>96
Battery discharging efficiency (battery at nominal voltage 480Vdc and full-rated linear load)
Battery mode
％
>94.5
>95
>96
7.6 Display and Interface
Table 7.10 Display and Interface
Display
LED + LCD
Interface
Standard:RS232, RS485
Option: SNMP ,Dry Contact
Summary of Contents for IST5010
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