Characteristics (cont.)
Electrical parameters for selecting protective devices
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
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.
Electrical parameters for Mains 1
rated | Mains 1 current |
|
|
|
|
inverter | rated current In for unit: | for 25% | for 50% |
| |
output | with battery at start | without battery (2) | overload (3) | overload (3) | |
in kVA |
|
|
| ||
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 | (3) the Mains 1 currents given for an overload of |
determined for a rated | 25% or 50% are maximum values. They have been |
380V to 415V, a battery with a 15 minute backup | determined for a battery drawing the minimum float |
time (206 cells at 2V per cell, i.e. 412V) and at the | charging voltage and a load power factor of 0.8. |
beginning of its recharge cycle, and full rated load | When choosing the circuit breaker rating, use the |
with a power factor of 0.8. | "rated current" column and check that the circuit |
(2) the rated Mains 1 currents (In) have been | breaker tripping curves are compatible with the |
determined for a minimum float charging voltage of | values in the overload columns. |
| |
423V and full rated load with a power factor of 0.8. |
|
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
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
Remark:
If the installation includes a transformer on the Mains 2 input, allow for the inrush current caused by magnetization of the transformer windings.
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 |
(1)the Mains 2 currents have been determined for a rated
For a Mains 2 voltage of 400V, use the table in another language version of this manual.
Page 6 - 6739381EN/JD