SynQor UPS-1250 Series, Руководство оператора, Страница: 18 / 52

Section II General Product Information
006-0007097 02/14/2019 Rev E 18 of 52 UPS-1250DC Guide www.synqor.com
Total Output Power that can be derived from the AC INPUT
The total UPS output power for the UPS-1250 DC Output Series is rated at 1250 W for an ambient
temperature as high as 55
o
C (131
o
F). It draws this power first from the AC INPUT (if its voltage is
within range) and then the DC INPUT (if its 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 (<90 Vrms) or the ambient
temperature is at the high end of its range (>45oC/113oF) 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. Figure 4 indicates the total steady-state output
power that the UPS can derive from the AC INPUT under these extreme conditions. See Figure 3
for information on transient conditions.
• If the AC INPUT voltage is above 105 Vrms, then the UPS can deliver its full rated output power
of 1250 W from the AC INPUT for an ambient temperature as high as 55
o
C (131
o
F) without
needing to switch over to the optional DC INPUT or the internal BATTERY PACK.
• If the AC INPUT is between 90 Vrms and 80 Vrms then the total output power that can be
derived from the AC INPUT linearly decreases from 1250 W at 90 Vrms to 1000 W at 80 Vrms
(except for at the high end of the ambient temperature range – see below). For example, the
total output power that could be derived from the AC INPUT would be 1125 W at 85 Vrms as
long as the ambient temperature is not above 50
o
C (122
o
F). If the total output power is greater
than this derated value, the UPS will switch to the DC INPUT (if it is available and >22 V) or the
internal BATTERY PACK.
• If the AC INPUT voltage is 90 Vrms AND the ambient air temperature is above 45
o
C (113
o
F),
the total output power that can be derived from the AC INPUT linearly decreases from 1250
W at 45
o
C (113
o
F) to 1000 W at 55
o
C (131
o
F). For example, the total output power that could
be derived from the AC INPUT would be 1125 W at an AC INPUT voltage of 90 Vrms and an
ambient temperature of 50
o
C (122
o
F). A higher output power than this would cause the UPS to
switch over to its DC INPUT or the internal BATTERY PACK.
• When the AC INPUT voltage is between 105 Vrms and 90 Vrms AND the ambient temperature
is between 45
o
C and 55
o
C, the total output power that can be derived from the AC INPUT can
be calculated by linearly interpolating between the curves shown. For example, the total output
power that can be derived from the AC INPUT when the voltage is 97.5 Vrms would be 1250 W
up to an ambient temperature of 50
o
C (122
o
F) and then derate to 1125 W at 55
o
C (131
o
F).
Furthermore, there is a limited (and uncommon) range of AC INPUT voltage between 132 Vrms
and 160 Vrms in which the total output power that can be derived from the AC INPUT is also
derated, as shown in Figure 3.