Apc SILCON 990-4053 User Manual download pdf (Page 72)

72 Installation Guide APC Silcon 480kW 400V UPS

990-4053

Appendix

Notes:

1. Nominal input current based on rated load.

2. Maximum input current based on rated load + full battery recharge. Full battery recharge

assumed to increase input current with 10%.

3. Nominal power consumption (column 1c) based on nominal input current (1e) and the

corresponding input voltage (1a).

4. Maximum power consumption (1d) based on maximum input current (1f) and the corresponding

input voltage (1a).

5. Suggested input overcurrent protection (1h) based on continous full load maximum input current

(1f). MCCB breaker selection based on continous full load nominal input current (1e) is

acceptable, provided battery recharge time is short.

6. Fuses according to DIN LV HRC type gL, 500V assumed. MCCB load capacity must be 8xIn

(nominal current) for minimum 10ms.

7. Suggested load side overcurrent protection (3b) based on nominal output current (3a).

8. Nominal battery voltage assumed to be 2V/cell (Lead technologi).

9. Recommended cable sizes, see "External Connection" section of this guide.

CAUTION! Cable sizes must comply with national and/or local legal regulations.

10. Nominal battery discharge current (2c) based on full rated load and nominal battery

voltage (2V/cell).

11. Maximum battery discharge current (2d) based on full rated load and battery voltage at end of

discharge (1.7V/cell).

12. Full load discharge power from battery based on nominal battery discharge current

(2c) x nominal battery voltage (2x192cells x 2V/cell), or maximum battery discharge current

(2d) x battery voltage at end of discharge (2x192cells x 1.7 V/cell).

13. Heat dissipation based on nominal full load capacity and linear load.

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Apc SILCON 990-4053 User Manual Page 72