Section II
General Product Information
006-0007129 10/12/2018
Rev B
17 of 60
UPS-1500 3-Phase Guide
www.synqor.com
UPS Efficiency
Figure 1 shows the typical efficiency with which the UPS-1500 3-Phase series uninterruptible
power supplies delivers power to its AC OUTPUT from a 200 Vrms
L-L
/115 Vrms
L-vN
AC INPUT or
a 28 V DC INPUT. The insertion loss of the “Electronic Breaker” option can be of up to 1% of the
total efficiency at full load.
70.0%
75.0%
80.0%
85.0%
90.0%
95.0%
0
200
400
600
800
1000
1200
1400
E
ffi
ci
en
cy
Output P ower (Watts )
S ynQor UP S E fficiency vs . Output
P ower and Input Voltage
28 Vdc
115VL-N
Figure 1
Total Output Power that can be derived from the AC INPUT
The total combined UPS output power (the AC OUTPUT power plus the optional DC OUTPUT
power options) for the UPS-1500 series is rated at 1250 W for an ambient temperature as high
as 55
°
C (131
°
F). Power is drawn first from the primary AC INPUT (if voltage is within range) and
then the secondary DC INPUT (if voltage is within range) and then from the internal BATTERY
PACK (if it has sufficient charge).
However, when the AC INPUT voltage is at the low end of its range (<100V
L-vN
AC) the UPS will
not be able to deliver its full rated output power in the steady-state without switching over to
either the DC INPUT (if it is available and >22 Vdc) or its internal battery. If one of the phases is
missing in the 3-Phase AC INPUT source the UPS will switch to the secondary DC INPUT source if
present, or the to the battery backup if the DC INPUT source is not available.
