APC 6000 Power Supply User Manual


 
Page 6 - 6739381EN/JD
Characteristics (cont.)
Electrical parameters for selecting protective devices
rated
inverter
output
in kVA
for 25% for 50%
overload (3) overload (3)
Electrical parameters for Mains 1
Mains 1 current
rated current In for unit:
with battery at start without battery (2)
of charge cycle (1)
250 447 407 509 611
300 537 490 612 734
400 727 654 818 981
450 775 735 919 1102
500 920 821 1026 1231
600 1089 981 1226 1472
(1) the rated Mains 1 currents (In) have been
determined for a rated phase-to-phase voltage of
380V to 415V, a battery with a 15 minute backup
time (206 cells at 2V per cell, i.e. 412V) and at the
beginning of its recharge cycle, and full rated load
with a power factor of 0.8.
(2) the rated Mains 1 currents (In) have been
determined for a minimum float charging voltage of
423V and full rated load with a power factor of 0.8.
(3) the Mains 1 currents given for an overload of
25% or 50% are maximum values. They have been
determined for a battery drawing the minimum float
charging voltage and a load power factor of 0.8.
When choosing the circuit breaker rating, use the
"rated current" column and check that the circuit
breaker tripping curves are compatible with the
values in the overload columns.
Electrical parameters for Mains 2 (415V)
rated Mains 2 current (1)
inverter output rated current for 25% for 50%
in kVA In overload overload
250 347 433 519
300 416 519 624
400 556 695 834
450 649 811 973
500 722 902 1083
600 866 1082 1300
The parameters given in the table
opposite can be used to determine the
required rating of the source side
protective circuit breaker on the Mains
2 line for a single-unit or modular UPS.
Important:
It is essential to choose the type of
circuit breaker according to its breaking
capacity and the prospective short-
circuit current at its place of installation.
This choice must also be made so as to
protect the static switch semiconductors
and ensure discrimination with respect
to the UPS output fuses (refer to
"appendix" chapter).
For an installation with a Static
Switch Cubicle, the Mains 2 currents
indicated in the table must be multipled
by the number of parallel-connected
rectifier-inverter cubicles required to
supply the load power (i.e. without
taking redundant rectifier-inverter units
into account).
Remark:
If the installation includes a transformer
on the Mains 2 input, allow for the
inrush current caused by magnetization
of the transformer windings.
(1) the Mains 2 currents have been determined for
a rated phase-to-phase voltage of 415V, a load
power factor of 0.8 and for full rated load as well as
overloads of 25% or 50%. When choosing the
circuit breaker rating, use the "rated curent"
column and check that the circuit breaker tripping
curves are compatible with the data in the overload
columns. For a Mains 2 voltage of 380V, multiply
the currents indicated in this table by 1.09.
For a Mains 2 voltage of 400V, use the table in
another language version of this manual.
The parameters given in the table
opposite can be used to determine the
required rating of the source side
protective circuit breaker on Mains 1 of
a single-unit or modular UPS, a
frequency converter, or a parallel UPS
with SSC.
Important:
It is essential to choose the type of
circuit breaker according to its breaking
capacity and the prospective short-
circuit current at its place of installation.
Note:
For Mains 1 power supply voltages of
380, 400 and 415V, the Mains 1 current
is the same because it is a function of
the DC voltage.