APC galaxy 9000 Manual De Usuario
34006451EN/AC
- Page 7
Characteristics
1.5 Electrical parameters for determining cable cross-sections
Parameters for single-unit UPS cables
Copper conductors
Aluminium conductors
– this table has been drawn up for rated phase-to-phase Mains and load voltages of 415 V. For voltages of 380 V, multiply
the currents for Mains 2 and load by 1.09; for voltages of 400 V, use the table in another language version of this manual;
the currents for Mains 2 and load by 1.09; for voltages of 400 V, use the table in another language version of this manual;
– the current values and cable cross-sections for Mains 1 are given for full rated load with a power factor of 0.9 and a battery
consuming its minimum float charging voltage;
– the battery current values and cable cross-sections have been determined for a battery at the end of a charge cycle;
– the battery current values and cable cross-sections have been determined for a battery at the end of a charge cycle;
– the current values and cable sections for Mains 2 and load are given for full rated load with a power factor of 0.9.
For frequency converters, the parameters concerning Mains 2 are not applicable.
The load parameters common to all the converters are given in the table below.
The load parameters common to all the converters are given in the table below.
For a parallel UPS, the parameters for Mains 2 and load are also provided in the table below.
For a modular UPS, the parameters for Mains 2 and load are also provided in the table below.
rated
inverter
output
output
in kVA
line currents absorbed in Amps
cross-sectional area of cables in mm
2
(2)
Mains 1
415 V
Mains 2
and load
and load
battery
Mains 1
415 V
Mains 2
and load
and load
battery
with or
without
battery (1)
battery (1)
with or
without
battery (1)
battery (1)
800
1455
1155
2274
4 x 240
4 x 185
3 x 240
900
1455
1299
2274
4 x 240
4 x 240
3 x 240
rated
inverter
output
output
in kVA
line currents absorbed in Amps
cross-sectional area of cables in mm
2
(2)
Mains 1
415 V
Mains 2
and load
and load
battery
Mains 1
415 V
Mains 2
and load
and load
battery
with or
without
battery (1)
battery (1)
with or
without
battery (1)
battery (1)
800
1455
1155
2274
4 x 400
4 x 300
3 x 400
900
1455
1299
2274
4 x 400
4 x 400
3 x 400
(1) the rated Mains 1 currents (In) have been determined for a minimum float charging voltage of 423 V and full rated load with a
power factor of 0.9.
(2) the cable cross-sections are calculated according to permissible temperature rise and allow for line voltage drops over a
maximum length of 100 m (AC circuits) or 25 m (DC circuits if cables not provided). For greater lengths, the cross-sections should
be chosen to limit voltage drops to 3 % (AC)
or 1 % (DC).